Vehicle report

2020 GMC SIERRA 3500

Service bulletins

637 bulletins

Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.

PIP4902W

Service Bulletin/Repair Instructions

This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.

PIP6127A

Service Bulletin/Repair Instructions

This document assists GM dealer technicians with diagnosing torque converter concerns to ensure torque converter replacement is necessary. The torque converter part number will be placed on order restriction, and the technician will be asked to follow 25-NA-148 before requesting a part through PQC.

PIT6031B

Service Bulletin/Repair Instructions

This Preliminary information communicates an issue where an aftermarket autostop device or rear taillights is causing a dead battery.

PIT5680B

Service Bulletin/Repair Instructions

This PI provides information to repair the door water deflector which is not sealed properly allows water into the door jam/sill area.

PIT5099J

Service Bulletin/Repair Instructions

PI to help diagnose A/C concern

PIT5509N

Service Bulletin/Repair Instructions

This PI provides diagnostic tips for diagnosing electric trailer brakes issues.

PIT6473F

Service Bulletin/Repair Instructions

This PI was created to help avoid unnecessary front camera module replacements

PIT6532

Service Bulletin/Repair Instructions

The purpose of this PI is to inform dealer technicians of a normal cab pressure relief valve noise to avoid unnecessary part replacement

PIT5544J

Service Bulletin/Repair Instructions

This Preliminary information communicates information on a hydraulic rush type noise from the power steering gear. This noise is a characteristic of the new Active Hydraulic Assist System RPO NV8 and no repairs should be made.  The noise is most noticeable in the cab at idle, in park, with all accessories turned off.

PIT6523

Service Bulletin/Repair Instructions

This PI provides diagnostic steps for dealer technicians to verify the condition and ensure that part replacement is necessary

PIT5509M

Service Bulletin/Repair Instructions

This PI provides diagnostic tips for diagnosing electric trailer brakes issues.

PIT5689N

Service Bulletin/Repair Instructions

This Preliminary information communicates that some customers may comment that after an auto-stop event the engine does not restart and to inspect the engine ground strap. Temporarily on hold while PIE0572 is active. PIE0572 has now ended and reinstating the PI.

PIT3271Q

Service Bulletin/Repair Instructions

This preliminary information communicates information about how to determine if a wheel and tires size change is available.

PIT6473E

Service Bulletin/Repair Instructions

This PI was created to help avoid unnecessary front camera module replacements

PIT6473D

Service Bulletin/Repair Instructions

This PI was created to help avoid unnecessary front camera module replacements

PIT6473C

Service Bulletin/Repair Instructions

This PI was created to help avoid unnecessary front camera module replacements

PIP4902V

Service Bulletin/Repair Instructions

This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.

PIP6104

Service Bulletin/Repair Instructions

This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect.

PIT6473B

Service Bulletin/Repair Instructions

This Preliminary Information communicates direction for different audio issues with RPO UQA, UQF, UQS, or NKD

PIT6425D

Service Bulletin/Repair Instructions

This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC'ss

PIT5697E

Service Bulletin/Repair Instructions

This Preliminary information communication provides information to the technician on installing Regular Production Option Code UVC Rearview Camera. Technician will need to reference the latest version of General Motors Up-fitter Integration Bulletin 152. The information can be found at http://www.gmupfitter.com/ under the "Technical Bulletin" Tab and then "Show all bulletins."

PIT5744F

Service Bulletin/Repair Instructions

This Preliminary information communicates information on how to disable the Side Blind Zone Detection and Park Assist systems when a customer removes the pickup box from the vehicle to install an aftermarket bed or body.

PIT6489

Service Bulletin/Repair Instructions

This preliminary information communicates an issue with the engine running after the ignition is turned off and diagnostic help to isolate a possible Fuel Pump Control Module issue.

PIT4506J

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician that some owners of Heavy Duty Trucks and Utilities may ask if they can lower their tire pressures. Tire pressures being set to the "Tire and Loading Label" will ensure the safe handling and ride characteristics of the truck and should not be lowered.

PIT6483

Service Bulletin/Repair Instructions

This preliminary information communicates an issue with aftermarket LED headlights causing IPC warning messages and MIL along with several low speed lan DTCs.

PIT6400A

Service Bulletin/Repair Instructions

This PI Communications information on an alternative product dealers can use to perform 19-NA-255: Wax Coating on Frame Peeling, Metal Shows Corrosion/Rusting due to issue with getting product from current supplier listed in the bulletin.

PIT6425C

Service Bulletin/Repair Instructions

This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC's

PIT6344A

Service Bulletin/Repair Instructions

This Preliminary information communicates an issue with blower motor speed changing when air flow is blocked by snow.

PIP6098

Service Bulletin/Repair Instructions

This PI advised dealer technicians of possible causes of diesel fuel contamination in gasoline powered vehicles and advises of warranty direction.

PIP4902U

Service Bulletin/Repair Instructions

This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.

PIT5828E

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about customers that may request the factory Integrated Trailer Brake Controller Regular Production Option Code (JL1) be installed on their Full-Size Pickup or SUV when the vehicle was not ordered with the option. Dealer should advise the customer it cannot be added to the vehicle.

PIT6276B

Service Bulletin/Repair Instructions

This Preliminary information communicates an issue with a service keyless entry message caused by aftermarket door handle covers and they should be removed.

PIT5689M

Service Bulletin/Repair Instructions

This Preliminary information communicates that some customers may comment that after an auto-stop event the engine does not restart and to inspect the engine ground strap. Temporarily on hold while PIE0572 is active. PIE0572 has now ended and reinstating the PI.

PIT5214G

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts that are being performed on customer’s vehicles that exhibit vibration conditions without utilizing the support of General Motors Technical Assistance Center. If valid vibration frequency or Road Force Variation data has been collected and a repair attempt does not correct the customer complaint, contact General Motors Technical Assistance Center for further support. For any vehicles that remains unrepaired after being at the dealer for three days or more and a related bulletin or PI is not found, contact General Motors Technical Assistance Center for further support.

PIT6425B

Service Bulletin/Repair Instructions

This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC's

PIT6425A

Service Bulletin/Repair Instructions

This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC's

N242454441 -03

Service Campaign

Certain vehicles listed above, may have a condition where the transmission control valve has worn, resulting in a gradual loss of pressure within the valve. The effects can cause harsh shifting, setting a service engine soon message, reduced engine performance or P0747 diagnostic trouble code. Dealers are to install a new control valve body. The repairs will be made at no charge to the customer.

PIT6440

Service Bulletin/Repair Instructions

The Driver Information Center may display a message of Transport Mode On after the ignition is cycled.

13598

Other

New Vehicle Monitoring Programs Section in IVH

PIT5479H

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about fluid leaking from the brake caliper piston area found during a service of the vehicle. The substance is actually excess assembly grease from the caliper boot and piston.

22-NA-080

Service Bulletin/Repair Instructions

This technical bulletin provides a procedure to replace the camshaft actuator magnet to correct customer concerns of engine related shudder.

PIP4902T

Service Bulletin/Repair Instructions

This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.

PIC5650M

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble Codes B3055, B3060, B3935, C0750, C0755, C0760, C0765, and/or C0775.

PIT6396A

Service Bulletin/Repair Instructions

This PI communicates an issue with a SES MIL with DTC P2535, P12A6, P10DA and/or C111B maybe set after replacing the fuel pump driver module. Engineering is working on a fix, but in the meantime, dealers are to install a diode.

PIT5161L

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that may have a bump feel or clunk noise at a stop or on launch. Dealer should communicate to the customer this condition is a normal operating characteristic

PIP5865E

Service Bulletin/Repair Instructions

This Preliminary information communicates the possibility of DTC P30BF failing on low mile vehicles due to the possibility of the cylinder 1/2 sliding barrel binding on intake camshaft.

PIP5601B

Service Bulletin/Repair Instructions

This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.

PIT6405

Service Bulletin/Repair Instructions

This PI is to inform dealers of a possible issue with an LVDS cable causing the radio to come on unwanted

N252494770-01

Service Campaign

Amendments to the Song-Beverly Act (SBA) California warranty law provides vehicle owners with an opportunity to submit a written notice to GM before filing a lawsuit seeking a vehicle repurchase. If such a notice is not provided to GM, then the vehicle owner is prevented from seeking civil penalties in litigation. Vehicle owners of the affected vehicles will be mailed an owner’s manual and warranty insert containing this information in English and Spanish.

N252494770

Service Campaign

Amendments to the Song-Beverly Act (SBA) California warranty law provides vehicle owners with an opportunity to submit a written notice to GM before filing a lawsuit seeking a vehicle repurchase. If such a notice is not provided to GM, then the vehicle owner is prevented from seeking civil penalties in litigation. Vehicle owners of the applicable vehicles will be mailed an owner’s manual and warranty insert containing this information in English and Spanish.

PIT6400

Service Bulletin/Repair Instructions

This PI Communications information on an alternative product dealers can use to perform 19-NA-255: Wax Coating on Frame Peeling, Metal Shows Corrosion/Rusting due to issue with getting product from current supplier listed in the bulletin.

PIT6396

Service Bulletin/Repair Instructions

This PI communicates an issue with a SES MIL with DTC P2535, P12A6, P10DA and/or C111B maybe set after replacing the fuel pump driver module. Engineering is working on a fix, but in the meantime, dealers are to install a diode.

PIT6180A

Service Bulletin/Repair Instructions

This Preliminary information communicates assistance in locating the Rear seat belt comfort guides in the parts catalog.

PIP4902S

Service Bulletin/Repair Instructions

This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.

25-NA-156

Service Bulletin/Repair Instructions

This service bulletin provides information on Tire Sidewall Irregularities.

00-06-01-026R

Service Bulletin/Repair Instructions

This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage.

24-NA-262

Service Bulletin/Repair Instructions

This bulletin helps aid the tech in possible 10L100 transmission noise that may be normal or abnormal depending on the concern noted.

07-08-42-006U

Service Bulletin/Repair Instructions

This service bulletin provides technicians with information on available BCM calibrations to restore bulb outage detection on vehicles produced by a second stage manufacturer (Upfitter), and/or turn signals flash fast after factory box removed.

PIT5074R

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.

23-NA-170

Service Bulletin/Repair Instructions

This bulletin advises the tech to inspect deeper into what may be to main cause of an engine failure.

23-NA-153

Service Bulletin/Repair Instructions

The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the customer that it is normal for the delay.

21-NA-238

Service Bulletin/Repair Instructions

This technical bulletin provides a procedure to inspect the front pump of the transmission for a possible leak.

25-NA-114

Service Bulletin/Repair Instructions

This informational bulletin provides information on Anti-Chip Coating Appearance.

25-NA-118

Service Bulletin/Repair Instructions

This service bulletin provides information for the technicians to use a Customer Concern Verification sheet to facilitate the questions needing to be answered by the customer regarding Automatic Emergency Braking (AEB) issues.

15-NA-010

Service Bulletin/Repair Instructions

This service bulletin provides information to dealership personnel for new vehicles with less than 1,000 miles that may not pass California smog inspection or smog inspection in other states.

PIP5810C

Service Bulletin/Repair Instructions

This Preliminary information communicates that the tool for the HD transfer cases to install the input seal during a repair is incorrect and a new tool is in development.

25-NA-100

Service Bulletin/Repair Instructions

This warranty administration bulletin provides policy information on vehicles outside of a California Emissions State who move to and register their vehicle in a California Emission State may be entitled to the 7 year, 70,000-mile Emission Select State Component Limited Warranty.

PI0281L

Service Bulletin/Repair Instructions

This preliminary informational (PI) bulletin provides information to dealership personnel that may be helpful when addressing underbody component corrosion with customers.

21-NA-166

Service Bulletin/Repair Instructions

This informational bulletin provides information on the turn signal stalk not cancelling and/or mis cancelling.

PIP5926D

Service Bulletin/Repair Instructions

This Preliminary information communicates that the t-case input seal, and/or the o-ring most likely is the source of the leak between the transmission and the t-case.

PIT5551R

Service Bulletin/Repair Instructions

This Preliminary information communicates a "Forward Collision System Reduced" message displayed on the DIC when the Forward Automatic Braking has been set to the "Alert" setting.  This is normal when the FAB has been set to  "Alert".

13-02-32-001H

Service Bulletin/Repair Instructions

This service bulletin provides a procedure to flush and bleed power steering system to correct a power steering noise or fluid leak concern that is caused during extremely low temperatures.

24-NA-229

Service Bulletin/Repair Instructions

This bulletin provides a procedure on how to check for a battery drain utilizing the Picoscope and how to measure the load on the system that may be causing a drain.

07-00-89-037W

Service Bulletin/Repair Instructions

This warranty administration bulletin provides policy information for GM courtesy transportation and roadside assistance programs.

PIT5986D

Service Bulletin/Repair Instructions

This Preliminary information communicates a diagnostic tip for a thump, click, pop, clunk type noise that is heard from the front end.   Dealers are to inspect for something contacting the grill shutters as they open and close.

22-NA-183

Service Bulletin/Repair Instructions

This service bulletin advises the technician of a different tire/rim option that can be used to correct a customer concern of poor ride quality at highway speeds.

25-NA-087

Service Bulletin/Repair Instructions

This service bulletin provides information on the proper Reflective High Temperature Heat and/or Insulating Tape to use for certain repairs, such as Wiring Harness Repairs.

13-08-116-001K

Service Bulletin/Repair Instructions

The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them.

07-08-42-006T

Service Bulletin/Repair Instructions

This service bulletin provides technicians with information on available BCM calibrations to restore bulb outage detection on vehicles produced by a second stage manufacturer (Upfitter), and/or turn signals flash fast after factory box removed.

23-NA-185

Service Bulletin/Repair Instructions

This service bulletin helps diagnose/reduce possible CCND issues on Transfer Cases - Service 4WD on DIC, Intermittent Failures, Noise Concerns, Driveline/Steering Vibration/Shudder, Intermittent DTCs/MIL Illuminated, Engagement/Disengagement/Ratcheting Concerns.

25-NA-052

Service Bulletin/Repair Instructions

This bulletin advises the technician to flush the cooling system multiple times if oil has been found in the cooling system and replace the parts that may be contaminated due to oil in system.

24-NA-098

Service Bulletin/Repair Instructions

This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491, E4492, or E6961 and resolution information.

25-NA-065

Service Bulletin/Repair Instructions

This informational bulletin instructs the tech when fuel/fluid is needed to be tested and where it can be sent for analysis.

08-03-10-006I

Service Bulletin/Repair Instructions

This service bulletin provides a procedure on how to clean and resurface aluminum wheel bead seats for vehicles that have the condition of Tire Slowly Goes Flat, Tire Air Loss, Low Tire Pressure Warning Light Illuminated, Aluminum Wheel Bead Seat Corrosion.

23-NA-073

Service Bulletin/Repair Instructions

This technical bulletin provides repair information to correct a customer concern of Evaporative DTCs P0442, P0446, P0455 or P0449, Caused by Dust Intrusion into the Evaporative Canister.

15-06-03-001F

Service Bulletin/Repair Instructions

This service bulletin provides information to diagnose batteries that have set for a long period of time and/or cold weather climates and testing those batteries.

19-NA-255

Service Bulletin/Repair Instructions

This service bulletin provides frame coating repair information to correct a customer concern of wax coating on frame peeling, metal shows corrosion/rusting (U.S. and Canada Only).

17-NA-073

Service Bulletin/Repair Instructions

This warranty administration bulletin provides information regarding the field action courtesy transportation policy.

24-NA-046

Service Bulletin/Repair Instructions

This technical bulletin provides a procedure to correct the condition of Suction Cup Marks on Window Glass.

PIP5901B

Service Bulletin/Repair Instructions

This Preliminary information communicates that the tool for the HD transfer cases to measure clutch pack shim selection is in development.

PIT5689L

Service Bulletin/Repair Instructions

This Preliminary information communicates that some customers may comment that after an auto-stop event the engine does not restart and to inspect the engine ground strap. Temporarily on hold while PIE0572 is active.  PIE0572 has now ended and reinstating the PI.

05-03-07-009L

Service Bulletin/Repair Instructions

This service bulletin provides information on Wheel Alignment Specifications, Requirements and Recommendations for GM Vehicles.

11-00-89-005Y

Service Bulletin/Repair Instructions

This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S. Only).

PIE0818

Service Bulletin/Repair Instructions

This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regard to the outside rearview mirror skull cap missing.

PIT6344

Service Bulletin/Repair Instructions

This Preliminary information communicates an issue with blower motor speed changing when air flow is blocked by snow.

PIT4506H

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician that some owners of Heavy Duty Trucks and Utilities may ask if they can lower their tire pressures. Tire pressures being set to the "Tire and Loading Label" will ensure the safe handling and ride characteristics of the truck and should not be lowered.

05-08-51-001L

Service Bulletin/Repair Instructions

This informational bulletin provides a procedure on how to remove the paint stain that may present itself under the shipping film.

22-NA-068

Service Bulletin/Repair Instructions

This technical bulletin provides repair information to correct a customer concern of Diagnostic Tips For Park Assist Off Message / Unwanted Or False Park Assist Alerts / No DTCs.

16-NA-109

Service Bulletin/Repair Instructions

This service bulletin provides a procedure inspecting for excess grease or Sealant on the Exterior of the steering gear due to seeing grease or sealant on certain locations on the gear.

PIT5551Q

Service Bulletin/Repair Instructions

This Preliminary information communicates a "Forward Collision System Reduced" message displayed on the DIC when the Forward Automatic Braking has been set to the "Alert" setting.  This is normal when the FAB has been set to  "Alert".

PIT5744E

Service Bulletin/Repair Instructions

This Preliminary information communicates information on how to disable the Side Blind Zone Detection and Park Assist systems when a customer removes the pickup box from the vehicle to install an aftermarket bed or body.

21-NA-138

Service Bulletin/Repair Instructions

This service bulletin provides a repair procedure to correct a customer concern of a Squeak, Grind or Clunking Noise from Rear Leaf Springs.

07-00-89-037V

Service Bulletin/Repair Instructions

This warranty administration bulletin provides policy information for GM courtesy transportation and roadside assistance programs.

20-NA-175

Service Bulletin/Repair Instructions

This technical bulletin provides repair information to correct a customer concern of vertical misalignment between cab and pickup box on driver side of vehicle.

10-08-110-001L

Service Bulletin/Repair Instructions

This service bulletin provides information on proper use of floor mats.

21-NA-043

Service Bulletin/Repair Instructions

This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.

22-NA-074

Service Bulletin/Repair Instructions

This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system.

22-NA-244

Service Bulletin/Repair Instructions

This warranty administration service bulletin provides information about GM Accessories - Dealer-Installed, Repaired or Replaced During Warranty Coverage Period.

23-NA-064

Service Bulletin/Repair Instructions

This service bulletin provides information on the Transport Mode Feature, also known as Logistics mode, which is used to increase the 12V Battery stand time of the vehicle during transit and or long period of stand time at the dealerships.

PIT5689K

Service Bulletin/Repair Instructions

This Preliminary information communicates that some customers may comment that after an auto-stop event the engine does not restart and to inspect the engine ground strap. Temporarily on hold while PIE0572 is active.  PIE0572 has now ended and reinstating the PI.

21-NA-135

Service Bulletin/Repair Instructions

This service bulletin provides information to inform dealership personnel about Law Enforcement and Government vehicles that request to disable or enable content.

N242454441-02

Service Campaign

Certain vehicles listed above, may have a condition where the transmission control valve has worn, resulting in a gradual loss of pressure within the valve. The effects can cause harsh shifting, setting a service engine soon message, reduced engine performance or P0747 diagnostic trouble code. This special coverage covers the condition described above for a period of 15 years or 150,000 miles (240,000km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. For vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after November 26, 2024, are covered by this special coverage and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to November 26, 2024, must be submitted to the Service Contract provider. Vehicle owners or lessees who paid for repairs referenced in this Special Coverage (“Customers”) are eligible for reimbursement of their reasonable and customary expenses in accordance with the procedures specified below. The conditional right to reimbursement is provided by GM solely in the interest of customer satisfaction and is personal to Customers. Customers may not assign and GM does not consent to any assignment of any Customer’s right to submit reimbursement claims, or to receive reimbursement, or any other rights granted by this Special Coverage to any third party, including but not limited to service contract providers, and this Special Coverage is not intended to and does not confer any third party beneficiary, subrogation or contribution rights, or any other rights to reimbursement, against GM, whether in law, equity or otherwise, on any third parties. Dealers are to install a new control valve body. The repairs will be made at no charge to the customer.

01-08-42-001Q

Service Bulletin/Repair Instructions

This service bulletin provides information on Exterior Lamp Condensation and Water Leak Information and Replacement Guidelines.

PIT5544H

Service Bulletin/Repair Instructions

This Preliminary information communicates information on a hydrauilc rush type noise from the power steering gear. This noise is a characteristic of the new Active Hydraulic Assist System RPO NV8 and no repairs should be made.  The noise is most noticeable in the cab at idle, in park, with all accessories turned off.

17-NA-350

Service Bulletin/Repair Instructions

This informational bulletin provides explanation of a normal condition of a loose fitting trailer hitch receiver in the gooseneck hitch ball.

22-NA-172

Service Bulletin/Repair Instructions

This technical bulletin provides repair information to correct a customer concern of Trailer Tire Pressure Only Reading Up To 100 PSI, New Parts To Increase To 147 PSI.

21-NA-155

Service Bulletin/Repair Instructions

This informational bulletin advises the technician to check for faults that may be caused by the trailer otherwise found by a possible faulty trailer connector.

24-NA-239

Service Bulletin/Repair Instructions

This informational bulletin provides a guide on how to diagnose and test for vibrations utilizing the PicoScope.

18-NA-011

Service Bulletin/Repair Instructions

Informational bulletin explaining how a plow may cause overheating and engine damage when traveling over 45 mph.

22-NA-150

Service Bulletin/Repair Instructions

This technical bulletin provides a procedure to program the Reductant Control Module and Setup and Perform the Reductant Fluid Tank Level Reset.

09-06-04-026Z

Service Bulletin/Repair Instructions

This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.

22-NA-218

Service Bulletin/Repair Instructions

This informational bulletin advises the technician on normal noises produced by the engine and to explain this to the customer.

PIT5828D

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about customers that may request the factory Integrated Trailer Brake Controller Regular Production Option Code (JL1) be installed on their Full-Size Pickup or SUV when the vehicle was not ordered with the option. Dealer should advise the customer it cannot be added to the vehicle.

20-NA-132

Service Bulletin/Repair Instructions

This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

07-00-89-037U

Service Bulletin/Repair Instructions

This warranty administration bulletin provides policy information for GM courtesy transportation and roadside assistance programs.

21-NA-091

Service Bulletin/Repair Instructions

This service bulletin provides information for customers/dealers/technicians on Normal Camera Display Operation - Flashing Diamond - Spot - or UFO like image on Camera Display.

03-06-01-023I

Service Bulletin/Repair Instructions

This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.

PIT5386K

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that are found to have a back-up alarm inoperative during the Pre-Delivery Inspection. On trucks equipped with the Back Up Alarm (RPO 8S3), the alarm will be intentionally left disconnected from the assembly plant. Technician will reroute the harness and plug it in.

18-NA-263

Service Bulletin/Repair Instructions

This warranty administration bulletin provide policy information for variable diagnostic time allowances on select labor operations (U.S. Only).

N242454441-01

Service Campaign

Certain vehicles listed above, may have a condition where the transmission control valve has worn, resulting in a gradual loss of pressure within the valve. The effects can cause harsh shifting, setting a service engine soon message, reduced engine performance or P0747 diagnostic trouble code. This special coverage covers the condition described above for a period of 15 years or 150,000 miles (240,000km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. For vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after November 26, 2024, are covered by this special coverage and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to November 26, 2024, must be submitted to the Service Contract provider. Vehicle owners or lessees who paid for repairs referenced in this Special Coverage (“Customers”) are eligible for reimbursement of their reasonable and customary expenses in accordance with the procedures specified below. The conditional right to reimbursement is provided by GM solely in the interest of customer satisfaction and is personal to Customers. Customers may not assign and GM does not consent to any assignment of any Customer’s right to submit reimbursement claims, or to receive reimbursement, or any other rights granted by this Special Coverage to any third party, including but not limited to service contract providers, and this Special Coverage is not intended to and does not confer any third party beneficiary, subrogation or contribution rights, or any other rights to reimbursement, against GM, whether in law, equity or otherwise, on any third parties. Dealers are to install a new control valve body. The repairs will be made at no charge to the customer.

16-NA-376

Service Bulletin/Repair Instructions

This informational bulletin provides information on higher than expected oil consumption.

PIT5962B

Service Bulletin/Repair Instructions

This Preliminary information communicates a GM part number for reflective high temperature heat or insulating tape when repairing wiring harnesses.

PIT5697D

Service Bulletin/Repair Instructions

This Preliminary information communication  provides information to the technician on installing Regular Production Option Code UVC Rearview Camera. Technician will need to reference the latest version of General Motors Up-fitter Integration Bulletin 152. The information can be found at http://www.gmupfitter.com/ under the "Technical Bulletin" Tab and then "Show all bulletins."

PIT6261

Service Bulletin/Repair Instructions

This Preliminary information communicates to dealers GM is working on a solution for outdated Apps

08-07-30-035I

Service Bulletin/Repair Instructions

This service bulletin provides information on the harmful effects of ethylene glycol in transmission fluid.

21-NA-275

Service Bulletin/Repair Instructions

This service bulletin provides repair information to correct customer concerns of Wheel Lock Up, ABS Event, Loud Bang and a Flashing “D” on Driver Information Center (DIC) when Lightly or Moderately Accelerating Forcing an 8-7 or 8-6 Downshift.

N242454441

Service Bulletin/Repair Instructions

Certain vehicles listed above, may have a condition where the transmission control valve has worn, resulting in a gradual loss of pressure within the valve. The effects can cause harsh shifting, setting a service engine soon message, reduced engine performance or P0747 diagnostic trouble code. This special coverage covers the condition described above for a period of 15 years or 150,000 miles (240,000km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. For vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after November 26, 2024, are covered by this special coverage and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to November 26, 2024, must be submitted to the Service Contract provider. Vehicle owners or lessees who paid for repairs referenced in this Special Coverage (“Customers”) are eligible for reimbursement of their reasonable and customary expenses in accordance with the procedures specified below. The conditional right to reimbursement is provided by GM solely in the interest of customer satisfaction and is personal to Customers. Customers may not assign and GM does not consent to any assignment of any Customer’s right to submit reimbursement claims, or to receive reimbursement, or any other rights granted by this Special Coverage to any third party, including but not limited to service contract providers, and this Special Coverage is not intended to and does not confer any third party beneficiary, subrogation or contribution rights, or any other rights to reimbursement, against GM, whether in law, equity or otherwise, on any third parties. Dealers are to install a new control valve body. The repairs will be made at no charge to the customer.

17-NA-374

Service Bulletin/Repair Instructions

This informational bulletin advises the technician of how the Soot information has changed from grams to percentage.

22-NA-238

Service Bulletin/Repair Instructions

This service bulletin provides diagnostic/repair information to correct a customer concern of Cellphone not Charging or USB Receptacle Inoperative.

19-NA-219

Service Bulletin/Repair Instructions

This diagnostic tip bulletin provides additional information on how to diagnose a possible valve, lifter or camshaft issue.

23-NA-167

Service Bulletin/Repair Instructions

This informational bulletin provides information on Outside Rear View Mirror Defog or Defrost Times Different for Passenger and Driver Mirrors.

12-08-51-002R

Service Bulletin/Repair Instructions

This informational bulletin provides technicians and dealership personnel with spray-in bed liner general information and repair procedures.

04-06-01-029K

Service Bulletin/Repair Instructions

This informational bulletin explains Unscheduled Supplemental Services and the importance of GM Simplified Maintenance Schedules.

PIT6240

Service Bulletin/Repair Instructions

This Preliminary information communicates information on adding RPO UF3 Fast Idle to a vehicle.

PIT5909C

Service Bulletin/Repair Instructions

This Preliminary information communicates that it is normal for the tailgate to drop faster than it used to after the GM Accessory Kicker Audio System is installed.

22-NA-092

Service Bulletin/Repair Instructions

This informational bulletin provides an optional repair using a different set of brakes that may correct the customers concern of Early Brake Wear in Harsh Environments.

24-NA-225

Service Bulletin/Repair Instructions

This bulletin provides information on how to look for and test for DEF or water in the fuel system and what the specs should be.

PIT6259

Service Bulletin/Repair Instructions

This Preliminary information communicates information on faulty replacement K111 Fuel Pump Driver Control Module.

24-NA-040

Service Bulletin/Repair Instructions

This service bulletin provides information on All hazmat parts being returned to the Warranty Parts Center (WPC) must be shipped using Central Transport. Hazardous materials should never be sent by air transportation to the WPC.

10-00-89-009F

Service Bulletin/Repair Instructions

This service bulletin provides information on key code security rules and information on GM keycode look-up applications (U.S).

24-NA-196

Service Bulletin/Repair Instructions

This informational bulletin advises the tech and the customer of a normal DEF operation while under high load conditions and when the time is right to fill the DEF at that time frame.

03-06-01-023H

Service Bulletin/Repair Instructions

This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.

01-06-01-011Q

Service Bulletin/Repair Instructions

This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.

99-00-89-019Z

Service Bulletin/Repair Instructions

This Warranty Administration bulletin provides information on the Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program.

07-00-89-037T

Service Bulletin/Repair Instructions

This warranty administration bulletin provides policy information for GM courtesy transportation and roadside assistance programs.

23-NA-154

Service Bulletin/Repair Instructions

This bulletin provides information on Warranty Administration – Required Operating Procedures - 8 Points (U.S. Only).

04-06-04-051J

Service Bulletin/Repair Instructions

This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.

17-NA-302

Service Bulletin/Repair Instructions

This informational bulletin provides information on availability for a locking gas cap for trucks are operated in high amount of dirt or dust which can migrate to the filler cap area.

23-NA-219

Service Bulletin/Repair Instructions

This service bulletin provides information on Concerns or Questions Regarding Installation of Dealer Installed Accessories.

24-NA-197

Service Bulletin/Repair Instructions

This technical bulletin provides a procedure to correct the condition of Malfunction Indicator Lamp Illuminated with DTCs P2463 P2459 P11FB P11D3.

20-NA-138

Service Bulletin/Repair Instructions

This bulletin provides information on Policies Applicable to All U.S. Dealers for Engine and Transmission Assembly Replacement Under Warranty, Policy or Customer Enthusiasm and information on Submission of Warranty Transaction in Global Warranty Management.

08-07-30-026I

Service Bulletin/Repair Instructions

This service bulletin provides information on some vehicles that may rock or move slightly forward or rearward while in Park at start up after cold soak. This condition may be accompanied by a clunk noise. This is a slight movement that is more often seen visually, rather than felt, when viewed from the outside and using the auto-start feature, if equipped.

21-NA-120

Service Bulletin/Repair Instructions

This service bulletin provides a Diagnostic Tip for Noise, Vibration, and/or Harshness Issues/Clunk Noise Heard During Coast Down Event after the transfer case was removed from the transmission and reinstalled during a recent repair.

PIT5689J

Service Bulletin/Repair Instructions

This Preliminary information communicates that some customers may comment that after an auto-stop event the engine does not restart and to inspect the engine ground strap. Temporarily on hold while PIE0572 is active.  PIE0572 has now ended and reinstating the PI.

18-NA-146

Service Bulletin/Repair Instructions

This warranty administration bulletin provides policy information, proper labor operation selection and causal part identification for warranty transactions (U.S. Only).

PIP5901A

Service Bulletin/Repair Instructions

This Preliminary information communicates that the tool for the HD transfer cases to measure clutch pack shim selection is in development.

07-00-89-036K

Service Bulletin/Repair Instructions

This service bulletin provides information on Enhancing Field Product Reports with Digital Pictures.

24-NA-185

Service Bulletin/Repair Instructions

This informational bulletin provides information on Steering Bump or Clunk Noise on Rough Roads or Potholes.

02-00-89-002X

Service Bulletin/Repair Instructions

This service bulletin provides information for dealers/technicians on When and How to Submit a Field Product Report (FPR) (U.S. and Canada Dealers Only).

23-NA-142

Service Bulletin/Repair Instructions

This technical bulletin provides a procedure for the techs to replace the forward check ball and separator plate if found the cause of the customers concern of No Forward Gear When Shifting from Park to Drive and/or Reverse to Drive.

PIP5992

Service Bulletin/Repair Instructions

This Preliminary information communicates the results if an in-correct P/N Stator Shaft Support  was installed during a transmission repair attempt.

PIT3271P

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles. General Motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. Technician should not use the information that is provided by the antilock braking system tire size selection.

PIT6198

Service Bulletin/Repair Instructions

This Preliminary information communicates a diagnostic tip for an SES MIL at startup with DTC U0100.  Dealer are to test the accessory wake up circuit to the ECM for power.

24-NA-174

Service Bulletin/Repair Instructions

The bulletin provides direction on how to locate the Temporary Service Part (TSP) form in GlobalConnect.

General Communication

Service Campaign

Vehicle Wide Programming (VWP) is a new process to update software on GM Vehicles. It provides the ability via a single selection within Techline Connect to first identify which modules need updating and then proceed to updating affected modules (with some exceptions). The updating of modules is completed in parallel instead of the technician needing to update one module at a time. This allows a more streamlined approach for dealers and customers.

05-03-08-002J

Service Bulletin/Repair Instructions

This service bulletin provides information to dealership personnel on diagnosis and replacement of shock absorber and strut due to fluid leak.

18-NA-073

Service Bulletin/Repair Instructions

This service bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and prevent unnecessary engine replacement.

23-NA-044

Service Bulletin/Repair Instructions

This service bulletin provides information on AGM batteries that require less frequent charging in storage.

PIP5991

Service Bulletin/Repair Instructions

This Preliminary information communicates to the dealer technician to reference the electronic parts catalog to check the EGR valve part number that was installed.

PIT5689H

Service Bulletin/Repair Instructions

This Preliminary information communicates that some customers may comment that after an auto-stop event the engine does not restart and to inspect the engine ground strap. Temporarily on hold while PIE0572 is active.  PIE0572 has now ended and reinstating the PI.

PIT5918B

Service Bulletin/Repair Instructions

This Preliminary information communicates an issue where GM Accessory Illuminated Emblem may cause an issue with the left headlight/turn signal and dealership are to disable the Accessory Illuminated Emblem until a fix is available.

18-NA-150

Service Bulletin/Repair Instructions

This service bulletin provides information on 6.6L Duramax Possible Oil Leak Path Information.

PIP5926C

Service Bulletin/Repair Instructions

This Preliminary information communicates that the t-case input seal, and/or the o-ring most likely is the source of the leak between the transmission and the t-case.

19-NA-237

Service Bulletin/Repair Instructions

This service bulletin explains how to identify possible DEF system contamination.

01-00-89-010S

Service Bulletin/Repair Instructions

This service bulletin provides information on a guide to help reduce repeat visits for the same customer concern.

16-NA-244

Service Bulletin/Repair Instructions

This informational bulletin provides information on Diesel Exhaust Fluid (DEF) and the proper use of the DEF system.

16-NA-372

Service Bulletin/Repair Instructions

This bulletin provides information on common diesel engine tick noises and how they are considered part of normal operation and no parts should be replaced for these normal operating conditions.

16-NA-380

Service Bulletin/Repair Instructions

This service bulletin provides a diagnostic aid procedure on how to perform a quick test to check if the DPF is the cause of excessive soot from the tailpipe.

18-NA-098

Service Bulletin/Repair Instructions

This informational bulletin provides information for the technicians on where to look on the Duramax engine for coolant leaks.

07-06-01-016J

Service Bulletin/Repair Instructions

This service bulletin provides information on Internal Engine Noise or Damage After Oil Filter Replacement.

23-NA-141

Service Bulletin/Repair Instructions

This informational bulletin advises the technician that the engine and related parts will be debited if found that the tech did not properly prepare the engine block from dirt and debris in bolt holes or if found that the block was damaged by the tech.

00-06-01-012N

Service Bulletin/Repair Instructions

This service bulletin advises about the possible issues that may occur when using a scotch brite pad or highly abrasive disk on gasket sealing surfaces or reused parts.

05-06-04-022V

Service Bulletin/Repair Instructions

This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL.

16-NA-222

Service Bulletin/Repair Instructions

This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations.

09-06-04-026Y

Service Bulletin/Repair Instructions

This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.

01-06-01-011P

Service Bulletin/Repair Instructions

This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.

18-NA-103

Service Bulletin/Repair Instructions

This service bulletin provides service information for customer concerns of an in-tank fuel pump whining noise, engine hard to start and/or stalls and Malfunction Indicator Lamp (MIL) is illuminated that may be caused by gelling of fuel in cold temperatures.

18-NA-306

Service Bulletin/Repair Instructions

This Warranty Administration service bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA).

20-NA-090

Service Bulletin/Repair Instructions

This informational bulletin provides a way for the technician to identify if the ECM has been modified.

20-NA-082

Service Bulletin/Repair Instructions

This informational bulletin explains why more DEF is being used in diesel engines due to new emission standards.

PI0754G

Service Bulletin/Repair Instructions

This PI provides information on Rear and Side Tempered Glass Spots (Quench Marks) and that they are a normal characteristic.

16-NA-158

Service Bulletin/Repair Instructions

This service bulletin describes the U.S. Dealer Special Tool Loan Program process.

12-01-37-001G

Service Bulletin/Repair Instructions

This service bulletin provides information to dealership personnel on a new refrigerant (R1234yf) for A/C service.

24-NA-141

Service Bulletin/Repair Instructions

GM is receiving damaged (cracked or broken) transmission cores returned to the reman facilities. The damage is being caused either in the removal process by the technician, or inadequate packaging or shipping. This bulletin advises the dealers to be more careful not to damage the transmissions during removal and to package the core properly for return.

20-NA-038

Service Bulletin/Repair Instructions

This informational bulletin explains the difference in AFM and DFM engines and what is and is not activated during this occurrence.

00-03-10-002M

Service Bulletin/Repair Instructions

This service bulletin provides information on Chemical Staining, Pitting, Corrosion and/or Spotted Appearance of Chromed Aluminum Wheels.

17-NA-157

Service Bulletin/Repair Instructions

This service bulletin explains the difference in oil filters for gas engines with new oil pump control systems and the possibilities of what may happen using the incorrect filter.

20-NA-203

Service Bulletin/Repair Instructions

This informational bulletin explains how the regen works for the DEF system and how it works at different levels.

20-NA-022

Service Bulletin/Repair Instructions

This technical bulletin provides a procedure to re-torque the leaf spring u bolts to correct a condition of Clunking Noise from Rear of Vehicle (Re-torque Leaf Spring Bolts).

24-NA-124

Service Bulletin/Repair Instructions

This technical bulletin provides repair information to correct a customer concern of Malfunction Indicator Lamp Illuminated, Stall, or No Start with DTC P2534, U3023, P0700, P129D, P10DB (w/ L5P Diesel), P103B, P17E0.

99-04-20-002O

Service Bulletin/Repair Instructions

This service bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal operation.

04-06-04-051I

Service Bulletin/Repair Instructions

This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.

16-NA-383

Service Bulletin/Repair Instructions

This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build-up.

22-NA-070

Service Bulletin/Repair Instructions

This service bulletin provides information for replacement parts traceability (RPT) process to aid in tracking part replacements.

18-NA-099

Service Bulletin/Repair Instructions

This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim.

22-NA-018

Service Bulletin/Repair Instructions

This service bulletin provides information for the Global Warranty Management (GWM) Warranty Parts Center (WPC) Part Photo Return Process (U.S. Dealers Only).

18-NA-125

Service Bulletin/Repair Instructions

This service bulletin provides information for engine oil life monitor operation calculation.

21-NA-068

Service Bulletin/Repair Instructions

This warranty administration bulletin provides policy information requirements applicable to key fob replacement under the New Vehicle Limited Warranty or under a Replacement Parts Warranty on 2017-2022 and newer model year vehicles with RPO ATH and AVJ.

20-NA-016

Service Bulletin/Repair Instructions

This Warranty Administration bulletin provides information on customer vehicles concern results in a manufacturer repurchase from the customer, GM depends on the dealership to host and administer the repurchase closing and intake of the returning vehicle.

23-NA-032

Service Bulletin/Repair Instructions

The informational bulletin advises the tech to use the glow plug bore cleaner to reduce the chance of soot building up on the glow plug causing a premature failure.

10-03-10-001G

Service Bulletin/Repair Instructions

This informational bulletin provides information on Wheel Balancer Mounting Instructions.

08-07-30-035H

Service Bulletin/Repair Instructions

This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid.

19-NA-136

Service Bulletin/Repair Instructions

This service bulletin provides a diagnostic procedure to aid in correcting a customer concern of a Howling, Whining/Whirring Noise, Shudder/Vibration and/or Grinding Noise While in 4HI, 4HI Auto and/or During Parking Lot Maneuvers in Auto Mode.

16-NA-119

Service Bulletin/Repair Instructions

This warranty administration bulletin provides policy information to cover GMs policy on performing GM covered vehicle services and maintenance on vehicles originating/sold in Canada.

09-00-89-008G

Service Bulletin/Repair Instructions

This Warranty Administration bulletin provides retail and wholesale service personnel with the policies/procedures and the warranty transaction submission procedures that support the Personal Property Damage process.

18-NA-067

Service Bulletin/Repair Instructions

This service bulletin provides information for cleaning brake dust off of aluminum or chrome wheels.

18-NA-361

Service Bulletin/Repair Instructions

This technical bulletin provides a procedure to flush the cooler lines to validate if there is excessive debris in the fuel system caused by a failed part.

22-NA-106

Service Bulletin/Repair Instructions

This service bulletin provides information on GM Canada New Vehicle Tire Warranty Program for Original Equipment (OE) Tires and PDI installed Limited Production Option (LPO) Tires.

06-00-89-029V

Service Bulletin/Repair Instructions

This service bulletin includes information on Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability.

10-08-110-001K

Service Bulletin/Repair Instructions

This service bulletin provides information on proper use of floor mats.

13-08-116-001J

Service Bulletin/Repair Instructions

The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them.

15-00-89-004G

Service Bulletin/Repair Instructions

This service bulletin provides technicians with information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.

23-NA-125

Service Bulletin/Repair Instructions

This service bulletin provides information for dealers/technicians on Over The Air (OTA) and In Market Enhancement (IME) FAQs.

N232426401-01

Service Bulletin/Repair Instructions

Customer Satisfaction Program. As a remedy for Safety Recall N232426400, certain vehicles had the liftgate exterior release switch assembly disabled. This Customer Satisfaction Program provides the final repair to restore the function of the disabled liftgate exterior release switch assembly. Dealers will replace the liftgate exterior release switch assembly.

N232426401

Service Bulletin/Repair Instructions

Customer Satisfaction Program. As a remedy for Safety Recall N232426400, certain vehicles had the liftgate exterior release switch assembly disabled. This Customer Satisfaction Program provides the final repair to restore the function of the disabled liftgate exterior release switch assembly. Dealers will replace the liftgate exterior release switch assembly.

00-03-10-006P

Service Bulletin/Repair Instructions

This service bulletin provides information for dealers/technicians on Tire Radial Force Variation (RFV).

17-NA-052

Service Bulletin/Repair Instructions

This bulletin updates the position of General Motors on refinishing aluminum wheels. GM has determined that wheel refinishing under warranty will no longer be performed.

10-08-45-001H

Service Bulletin/Repair Instructions

This bulletin provides information for electrical ground repairs using new General Motors replacement fasteners with conductive finish.

23-NA-103

Service Bulletin/Repair Instructions

This service bulletin provides information on submitting quality Photos of Various Vehicle Concerns to the GM Technical Assistance Center (TAC).

24-NA-044

Service Bulletin/Repair Instructions

This technical bulletin provides repair information to correct a customer concern of U170 Radio Software Update.

PIT5954C

Service Bulletin/Repair Instructions

This Preliminary information communicates a Radio software update resolution for OnStar LED Red And Wifi Hotspot Inoperative After Remote Vehicle Start concern.

07-00-89-037S

Service Bulletin/Repair Instructions

This warranty administration bulletin provides policy information for GM courtesy transportation and roadside assistance programs.

11-00-89-005X

Service Bulletin/Repair Instructions

This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S. Only).

PIT5689G

Service Bulletin/Repair Instructions

This Preliminary information communicates that some customers may comment that after an auto-stop event the engine does not restart and to inspect the engine ground strap. Temporarily on hold while PIE0572 is active.  PIE0572 has now ended and reinstating the PI.

24-NA-020

Service Bulletin/Repair Instructions

This service bulletin provides a repair procedure to correct customer concerns of Service Emissions System Displayed on DIC, MIL Illuminated with DTC P249C and/or P20E8 Set.

PIT5689F

Service Bulletin/Repair Instructions

This Preliminary information communicates that some customers may comment that after an auto-stop event the engine does not restart and to inspect the engine ground strap. Temporarly on hold while PIE0572 is active.  PIE0572 has now ended and reinstating the PI.

PIT4322P

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that have an unwanted Stability Activation and/or a Service Stability message on the Driver Information Center. Technician may find a Diagnostic Trouble Code C0710. Technician should inspect for vehicles modifications before any in-depth diagnostics are performed.

PIT5551N

Service Bulletin/Repair Instructions

This Preliminary information communicates a "Forward Collision System Reduced" message displayed on the DIC when the Forward Automatic Braking has been set to the "Alert" setting.  This is normal when the FAB has been set to  "Alert".

PIT5744D

Service Bulletin/Repair Instructions

This Preliminary information communicates information on how to disable the Side Blind Zone Detection and Park Assist systems when a customer removes the pickup box from the vehicle to install an aftermarket bed or body.

19-NA-044

Service Bulletin/Repair Instructions

This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy.

PIT5479F

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about fluid leaking from the brake caliper piston area found during a service of the vehicle. The substance is actually excess assembly grease from the caliper boot and piston installation. This grease can be cleaned off and the rest of the service completed.

16-NA-338

Service Bulletin/Repair Instructions

This Warranty Admin service bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and explains the PQC process, GWM Transaction submission, vehicle service record retention and proper handling of assembly returns for Canadian Dealers only.

PIT4506G

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician that some owners of Heavy Duty Trucks and Utilities may ask if they can lower their tire pressures. Tire pressures being set to the "Tire and Loading Label" will ensure the safe handling and ride characteristics of the truck and should not be lowered.

PIT6122

Service Bulletin/Repair Instructions

This Preliminary information communicates to dealers of a known issue with failed map update

23-NA-055

Service Bulletin/Repair Instructions

This service bulletin provides information on the EL-52800 Diagnostic & Charge Battery Station (DCBS) – FAQs.

PIT5702E

Service Bulletin/Repair Instructions

This Preliminary information communication provides information to the technician on installing Regular Production Option Code 9L7 Up-fitter Auxiliary Switches. Technician will need to reference the latest version of General Motors Up-fitter Integration Bulletin 153. The information can be found at http://www.gmupfitter.com/ under the "Technical Bulletin" Tab and then "Show all bulletins."

PIT6119

Service Bulletin/Repair Instructions

This Preliminary information communicates an issue where the minor tailgate will not open due to an aftermarket device installed on the vehicle.

23-NA-189

Service Bulletin/Repair Instructions

This service bulletin assists technicians in setting up PicoScope hardware/software to monitor CAN bus traffic (voltage patterns) to aid Technical Assistance (TAC) and Field Service Engineers (FSEs) in diagnosing electrical issues present on network communication circuits.

PIP5810B

Service Bulletin/Repair Instructions

This Preliminary information communicates that the tool for the HD transfer cases to install the input seal during a repair is incorrect and a new tool is in development.

22-NA-112

Service Bulletin/Repair Instructions

This technical bulletin provides repair information to correct a customer concern of 2020 - 2022 Silverado and Sierra Equipped with Diesel Engine Setting DTCs P20BB or P20C3.

PI0281K

Service Bulletin/Repair Instructions

This preliminary informational (PI) bulletin provides information to dealership personnel which may be helpful when addressing underbody component corrosion with customers.

02-08-42-001J

Service Bulletin/Repair Instructions

This informational bulletin provides information for dealers/technicians on Headlamp, Tail Lamp, License Lamp or Fog/Driving Lamp Damage.

PI1394B

Service Bulletin/Repair Instructions

This PI bulletin advises the technician on the proper way to install the pistons in an engine.

PIT5161K

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that may have a bump feel or clunk noise at a stop or on launch. Dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle. The bump clunk issue may be due to fuel movement in the fuel tank when not completely full. The condition is eliminated after completely filling the fuel tank.

PIT5733D

Service Bulletin/Repair Instructions

This Preliminary information provides information to the technician on installing a roof beacon light. Technician will need to reference the latest version of General Motors Up-fitter Integration Bulletin 157. The information can be found at http://www.gmupfitter.com/ under the "Technical Bulletin" Tab and then "Show all bulletins."

PIT5743D

Service Bulletin/Repair Instructions

This Preliminary information communicates diagnostic tips when trying to root cause a SES MIL with DTC's B2B0D and B2B0E.  Main cause is aftermarket electrical devices spliced into the ignition main fuses.

PIT5828C

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about customers that may request the factory Integrated Trailer Brake Controller Regular Production Option Code (JL1) be installed on their Full-Size Pickup or SUV when the vehicle was not ordered with the option. Dealer should advise the customer it cannot be added to the vehicle.

PI0592I

Service Bulletin/Repair Instructions

This preliminary information (PI) provides information om Service Programming System (SPS) Error Codes (E4398, E4399, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491 or E6961).

PIT5386J

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that are found to have a back-up alarm inoperative during the Pre-Delivery Inspection. On trucks equipped with the Back Up Alarm (RPO 8S3), the alarm will be intentionally left disconnected from the assembly plant. Technician will reroute the harness and plug it in.

PIT5962A

Service Bulletin/Repair Instructions

This Preliminary information communicates a GM part number for reflective high temperature heat or insulating tape when repairing wiring harnesses.

PIT6096

Service Bulletin/Repair Instructions

This Preliminary information communicates a diagnostic tip for the 110 /120 volt power outlets being inoperative and dealerships should try a battery disconnect to see if the concern goes away.

03-00-91-001I

Service Bulletin/Repair Instructions

This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure when diagnosing vibration concerns.

23-NA-112

Service Bulletin/Repair Instructions

This technical bulletin provides a procedure to correct the condition of Inadvertent/Unwanted Tail Gate Opening.

PIT5736C

Service Bulletin/Repair Instructions

This Preliminary information communicates how the HVAC setting operates during a remote vehicle start.

21-NA-228

Service Bulletin/Repair Instructions

This bulletin provides a procedure to program the BCM to correct the customers concern of RKE idle Time-out.

20-NA-159

Service Bulletin/Repair Instructions

This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S. Dealers Only).

22-NA-225

Service Bulletin/Repair Instructions

This information bulletin advises the technician the difference between a welch cap leak and the output seal of the t-case or transmission leaking ATF, causing the customer concern of a Red Fluid Leak from Center of Vehicle Located by Rear of Transmission or Transfer Case Area.

23-NA-065

Service Bulletin/Repair Instructions

This service bulletin provides repair information to correct a customer concern of OnStar Inoperative after Importing Vehicle from Canada to the United States.

05-00-89-029F

Service Bulletin/Repair Instructions

This service bulletin provides information on General Motors Dealership Critical Equipment Requirements and Recommendations.

01-06-01-011O

Service Bulletin/Repair Instructions

This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.

17-NA-170

Service Bulletin/Repair Instructions

This service bulletin provides information about the Hunter wheel Road Force balancers that should be utilized for all repairs requiring balance and Road Force measurement.

99-00-89-019Y

Service Bulletin/Repair Instructions

This Warranty Administration bulletin provides information on the Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program.

02-00-89-002W

Service Bulletin/Repair Instructions

This service bulletin provides information for dealers/technicians on When and How to Submit a Field Product Report (FPR) (U.S. and Canada Dealers Only).

10-00-89-006J

Service Bulletin/Repair Instructions

This service bulletin provides information for dealers on how to submit a product information report (PIR) (Canada Only).

PIT5099G

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature.

PIT5698D

Service Bulletin/Repair Instructions

This Preliminary information communicates additional information on how a LIN bus operates and diagnostic tips when working on a LIN bus.

07-08-49-020R

Service Bulletin/Repair Instructions

This informational bulletin provides information for the IPC odometer programming method quick reference guide.

20-NA-142

Service Bulletin/Repair Instructions

This Technical bulletin provides a repair to correct a condition of Shudder/Surging While Driving.

23-NA-150

Service Bulletin/Repair Instructions

This technical bulletin provides repair information to correct a customer concern of Teen Driver Feature Not Limiting Speed Correctly.

22-NA-187

Service Bulletin/Repair Instructions

This informational bulletin advises the tech to inspect the transfer case motor electrical connectors for possible damage or corrosion that might be caused by a damage grommet inside the electrical connector.

21-NA-067

Service Bulletin/Repair Instructions

This technical bulletin provides repair information to correct a customer concern of the foam strip between the I/P trim and base of the windshield detaching from the upper I/P trim panel.

23-NA-144

Service Bulletin/Repair Instructions

This technical bulletin provides information and a solution to a condition of Brake Pedal Moves or Self Applies at Full Turns.

09-00-89-016H

Service Bulletin/Repair Instructions

This Warranty Administration bulletin provides information on the proper use of the labor operation 0600014.

21-NA-214

Service Bulletin/Repair Instructions

This technical bulletin provides repair information to correct a customer concern of Service Engine Soon Lamp being illuminated. They may also comment on multiple transmission issues including harsh or delayed shifts, slip, surge, shudder, noise, whine, growl, shake and/or vibration. As well as the exhaust brake not working or that they do not feel it. Technicians may find DTCs P2002, P2463, P2459, P144E, P0421, P0422, P0106 P20EE, P129F, P16F3, P20FF, P226D, P249D, P249E, P11CC and / or P11D5.

15-00-89-004F

Service Bulletin/Repair Instructions

This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.

10-06-05-002M

Service Bulletin/Repair Instructions

This informational bulletin provides information on Clean Exhaust Filter See Owner Manual Now or Cleaning Exhaust Filter Keep Driving Until Message is Cleared messages Displayed on DIC, DTC P2463 May Be Set.

01-00-89-010R

Service Bulletin/Repair Instructions

This service bulletin provides information on a guide to help reduce repeat visits for the same customer concern.

03-06-04-017T

Service Bulletin/Repair Instructions

This service bulletin provides information on availability of Diesel Fuel additives.

04-06-04-051H

Service Bulletin/Repair Instructions

This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.

03-06-01-023G

Service Bulletin/Repair Instructions

This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.

09-06-04-026X

Service Bulletin/Repair Instructions

This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.

17-NA-066

Service Bulletin/Repair Instructions

This service bulletin provides information for automatic transmission Oil Cooler Flush and flow test.

23-NA-027

Service Bulletin/Repair Instructions

This technical bulletin provides a procedure to test and replace the high-pressure fuel injector electrical connectors if found the cause of the MIL.

PIP5358C

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that have an unusual noise and is difficult to identify, isolate or pinpoint. Technician should get record a sound clip or take a video of the noise for assessment by engineering. Technician will need to call General Motors Technical Assistance Center for further assistance.

21-NA-026

Service Bulletin/Repair Instructions

This service bulletin provides information for dealers/technicians on accessory all-weather floor liners and flat mats warped or misshapen.

99-09-40-005I

Service Bulletin/Repair Instructions

This service bulletin provides information on availability for a seat belt extender.

07-08-42-006S

Service Bulletin/Repair Instructions

This service bulletin provides technicians with information on available BCM calibrations to restore bulb outage detection on vehicles produced by a second stage manufacturer (Upfitter), and/or turn signals flash fast after factory box removed.

01-06-01-011N

Service Bulletin/Repair Instructions

This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.

99-08-51-001F

Service Bulletin/Repair Instructions

This service bulletin provides information on Paintless Dent Repair Process.

13-08-116-001I

Service Bulletin/Repair Instructions

The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them.

21-NA-005

Service Bulletin/Repair Instructions

This technical bulletin provides a procedure to replace the air bag and air bag harness to correct a condition of Airbag Malfunction Warning and Airbag Malfunction Indicator Illuminated with DTC B0001-1B due to corrosion.

21-NA-061

Service Bulletin/Repair Instructions

This service bulletin provides information for dealers on Using EL-52545 When Diagnosing PEPs Transmitter Key Fobs.

04-07-30-013E

Service Bulletin/Repair Instructions

This service bulletin provides information to dealership personnel on automatic transmission shift and engine driveability concerns and/or MIL ON due to aftermarket oil bath air filter use.

PIP5926

Service Bulletin/Repair Instructions

This Preliminary information communicates that the t-case input seal, and/or the o-ring most likely is the source of the leak between the transmission and the t-case.

02-00-89-002V

Service Bulletin/Repair Instructions

This service bulletin provides information for dealers/technicians on When and How to Submit a Field Product Report (FPR) (U.S. Dealers Only).

23-NA-062

Service Bulletin/Repair Instructions

This service bulletin provides repair information to correct a customer concern of Rear View Camera Issues - DTCs B395A, B395B, B395C, B101E, B101D.

08-07-30-026H

Service Bulletin/Repair Instructions

This service bulletin provides information on some vehicles that may rock or move slightly forward or rearward while in Park at start up after cold soak. This condition may be accompanied by a clunk noise. This is a slight movement that is more often seen visually, rather than felt, when viewed from the outside and using the auto-start feature, if equipped.

12-03-10-001E

Service Bulletin/Repair Instructions

This service bulletin provides information for dealers/technicians on Vibration Shortly After Tires are Mounted/Preventing Vibration from Wheel Slip (Tire Sliding on Wheel).

PIC5650K

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble Codes B3055, B3060, and/or B3935. Technician should not replace any parts for this concern. If unable to duplicate the concern ask if the customer uses any Radio Frequency Identification Devices when the concern is present. Dealer should also direct their customers to the appropriate section in the Owner manuals that references that the device complies.

01-08-42-001P

Service Bulletin/Repair Instructions

This service bulletin provides information on Exterior Lamp Condensation and Water Leak Information and Replacement Guidelines.

11-00-89-005W

Service Bulletin/Repair Instructions

This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S. Only).

PIT5509J

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicle that may have a "Check Trailer Wiring" or "Service Trailer Brake System? message on the Driver Information Center when a trailer is connected to the vehicle. Diagnostic Trouble Code C1114 set in the Chassis Control Module. Chassis Control Module has to determine the type of trailer brake system that is being used. The Chassis Control Module can be sensitive to a variety of trailer wiring issues. The technician will need to make a trailer tester using Electric Trailer Brake Magnets and 7-way trailer connector to determine if it is a vehicle or trailer issue. If the concern is not duplicated with the tester installed, the vehicle is operating correctly and the focus should be on the trailer wiring or 7 way connector.

PIP5628F

Service Bulletin/Repair Instructions

This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D

12-03-10-001D

Service Bulletin/Repair Instructions

This service bulletin provides information for dealers/technicians on Vibration Shortly After Tires are Mounted/Preventing Vibration from Wheel Slip (Tire Sliding on Wheel).

PIT5970B

Service Bulletin/Repair Instructions

This Preliminary information communicates information to the technician that if they receive a vehicle with this concern and verifying the rear view camera is zoomed in, General Motors is aware of this and have created a repair.

04-00-89-015Z

Service Bulletin/Repair Instructions

This bulletin provides information on Warranty Administration – Required Operating Procedures - 8 Points (U.S. Only).

PIT5970A

Service Bulletin/Repair Instructions

This Preliminary information communicates information to the technician that if they receive a vehicle with this concern and verifying the rear view camera is zoomed in, General Motors is aware of this and have created a repair.

PIT5387N

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician how to repair vehicles that Instrument Panel Cluster, Radio, and Heater-Vent-Air Conditioning display blanks out, Bluetooth phone or Pandora connection dropped, the radio station or volume changes when operating the snow plow. Please advise the customer that engineering is aware of this concern and working on this issue.

22-NA-085

Service Bulletin/Repair Instructions

This service bulletin provides radio software version 135120 (IOR) update procedures to correct customer concerns of software related issues.

08-07-30-035G

Service Bulletin/Repair Instructions

This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid.

10-08-110-001J

Service Bulletin/Repair Instructions

This service bulletin provides information on proper use of floor mats.

11-00-89-005V

Service Bulletin/Repair Instructions

This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S. Only).

23-NA-053

Service Bulletin/Repair Instructions

This service bulletin provides repair information on Radio Software Version U168 Update to correct customer concerns of radio software issues.

20-NA-198

Service Bulletin/Repair Instructions

This technical bulletin provides repair information to correct a customer concern of seeing the trailer running lights shut off due to excessive load on the running lamp circuit.

PI0281J

Service Bulletin/Repair Instructions

This preliminary informational (PI) bulletin provides information to dealership personnel which may be helpful when addressing underbody component corrosion with customers.

PIT5954B

Service Bulletin/Repair Instructions

This Preliminary information communicates an engineering investigation for OnStar LED Red And Wifi Hotspot Inoperative After Remote Vehicle Start concern.

23-NA-056

Service Bulletin/Repair Instructions

This technical bulletin provides a procedure to correct the condition of Wind Whistle Noise at Highway Speeds.

23-NA-059

Service Bulletin/Repair Instructions

This technical bulletin provides a procedure to correct the condition of Gap at Door Armrest Decorative Trim to the Armrest/Door Switch.

22-NA-147

Service Bulletin/Repair Instructions

This technical bulletin provides repair information to correct a customer concern of Service 4–Wheel Drive Message Illuminated in DIC with DTC C15AC Set.

22-NA-148

Service Bulletin/Repair Instructions

This technical bulletin provides repair information to correct a customer concern of Service 4–Wheel Drive Message Illuminated in DIC with DTC C119E Set During Antilock Brake System Event.

03-06-04-017S

Service Bulletin/Repair Instructions

This service bulletin provides information on availability of Diesel Fuel additives.

00-06-01-012M

Service Bulletin/Repair Instructions

This service bulletin advises about the possible issues that may occur when using a scotch brite pad or highly abrasive disk on gasket sealing surfaces or reused parts.

00-06-01-026Q

Service Bulletin/Repair Instructions

This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage.

22-NA-009

Service Bulletin/Repair Instructions

This service bulletin provides service information on new torque specification and installation procedure for ACDelco Spin-On Oil Filters.

07-06-01-016I

Service Bulletin/Repair Instructions

This service bulletin provides information on Internal Engine Noise or Damage After Oil Filter Replacement.

10-06-05-002L

Service Bulletin/Repair Instructions

This informational bulletin provides information on Clean Exhaust Filter See Owners Manual Now or Cleaning Exhaust Filter Keep Driving Until Message is Cleared messages Displayed on DIC, DTC P2463 May Be Set.

13-02-32-001G

Service Bulletin/Repair Instructions

This service bulletin provides a procedure to flush and bleed power steering system to correct a power steering noise or fluid leak concern that is caused during extremely low temperatures.

18-NA-383

Service Bulletin/Repair Instructions

This technical bulletin provides repair information to correct a customer concern of water found in rear interior of cab due to water leak at rear sliding window.

20-NA-141

Service Bulletin/Repair Instructions

This technical bulletin provides repair information to correct a customer concern of the Tri-Fold Tonneau paint finish fading or discolored.

21-NA-110

Service Bulletin/Repair Instructions

This informational bulletin provides information for dealers/technicians on Information on GM Accessories - Instructions on Claim Submission on Dealer-Replaced Tonneau Covers During Warranty Period.

16-NA-130

Service Bulletin/Repair Instructions

This service bulletin provides information for after installation of a replacement upper valve body, the transmission may have no Reverse and no 2nd gear.

15-NA-017

Service Bulletin/Repair Instructions

This Warranty Administration bulletin provides policy information on Causal Part requirements for transactions submitted to GM for payment.

PIT5732C

Service Bulletin/Repair Instructions

This Preliminary information provides information to the technician on relocating the DEF tank to install a service body. Technician will need to reference the latest version of General Motors Up-fitter Integration Bulletin 156. The information can be found at http://www.gmupfitter.com/ under the "Technical Bulletin" Tab and then "Show all bulletins."

PI0754F

Service Bulletin/Repair Instructions

This PI provides information on Rear and Side Tempered Glass Spots (Quench Marks) and that they are a normal characteristic.

99-04-20-002N

Service Bulletin/Repair Instructions

This service bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal operation.

01-08-42-001O

Service Bulletin/Repair Instructions

This service bulletin provides information for dealers/technicians on Exterior Lamp Condensation and Water Leaks and Replacement Guidelines.

PIP5901

Service Bulletin/Repair Instructions

This Preliminary information communicates that the tool for the HD transfer cases to measure clutch pack shim selection is in development.

07-08-42-006R

Service Bulletin/Repair Instructions

This service bulletin provides technicians with information on available BCM calibrations to restore bulb outage detection on vehicles produced by a second stage manufacturer (Upfitter), and/or turn signals flash fast after factory box removed.

18-NA-279

Service Bulletin/Repair Instructions

This service bulletin provides information for dealers/technicians on the process to disable and enable passive unlocking.

22-NA-115

Service Bulletin/Repair Instructions

This service bulletin provides information for U.S. dealers ONLY to refer to the Battery Maintenance Report to identify vehicles in dealer inventory that require attention.

00-00-90-002M

Service Bulletin/Repair Instructions

This service bulletin provides information for accurate tire pressures that ensure the safe handling and appropriate ride characteristics of GM cars and trucks.

07-03-16-004E

Service Bulletin/Repair Instructions

This service bulletin provides information for tire pressure monitoring (TPM) system concerns.

PIT5970

Service Bulletin/Repair Instructions

This Preliminary information communicates information to the technician that if they receive a vehicle with this concern and verifying the rear view camera is zoomed in, General Motors is aware of this and working on a solution for the concern.

02-00-89-002U

Service Bulletin/Repair Instructions

This service bulletin provides information for dealers/technicians on When and How to Submit a Field Product Report (FPR) (U.S. Dealers Only).

PIT5386H

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that are found to have a back-up alarm inoperative during the Pre-Delivery Inspection. On trucks equipped with the Back Up Alarm (RPO 8S3), the alarm will be intentionally left disconnected from the assembly plant. Technician will reroute the harness and plug it in.

PIT5868B

Service Bulletin/Repair Instructions

This Preliminary information communicates an issues will low or poor heater performance on the drivers side.  Dealers are to inspect the HVAC temperature door linkage and if ok replace the heater core.

PIT5743C

Service Bulletin/Repair Instructions

This Preliminary information communicates diagnostic tips when trying to root cause a SES MIL with DTC's B2B0D and B2B0E.  Main cause is aftermarket electrical devices spliced into the ignition main fuses.

PIT5161J

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that may have a bump feel or clunk noise at a stop or on launch. Dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle. The bump clunk issue may be due to fuel movement in the fuel tank when not completely full. The condition is eliminated after completely filling the fuel tank.

22-NA-257

Service Bulletin/Repair Instructions

This service bulletin provides information on Dealer Installed LPO Wheel Installation and Return Process.

09-00-89-008F

Service Bulletin/Repair Instructions

This Warranty Administration bulletin provides retail and wholesale service personnel with the policies/procedures and the warranty transaction submission procedures that support the Personal Property Damage process.

PIP5540J

Service Bulletin/Repair Instructions

This Preliminary information communicates to the technician the need to inspect the induction system for potential icing issues in very cold ambient temperatures. To allow the ice to melt so that it can be drained from the related components. That any of the listed DTC's may set with or without poor engine performance.

21-NA-124

Service Bulletin/Repair Instructions

This service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to correct a customer concern of an MIL Illuminated with DTCs P0442 and/or P0455 Set.

PIT5544F

Service Bulletin/Repair Instructions

This Preliminary information communicates information on a hydrauilc rush type noise from the power steering gear. This noise is a characteristic of the new Active Hydraulic Assist System RPO NV8 and no repairs should be made.  The noise is most noticeable in the cab at idle, in park, with all accessories turned off.

PIT5746C

Service Bulletin/Repair Instructions

This Preliminary information communicates information on how dealers can contact the supplier for Associated Accessories offered through GM.

PIP5632G

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Technician will need use Global Diagnostic System 2 to send the session logs to General Motors Technical Assistance Center for further assistance on the vehicle in question.

PIP4902Q

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Technician will need use Global Diagnostic System 2 to send the session logs to General Motors Technical Assistance Center for further assistance on the vehicle in question.

PIT3271N

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles. General Motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. Technician should not use the information that is provided by the antilock braking system tire size selection.

22-NA-216

Service Bulletin/Repair Instructions

This bulletin advises the technician to Inspect the position of the head gasket locating tabs to determine if the head gasket(s) has been possibly installed backwards to correct a concern of an Engine Thermostat Tick Noise and/or Running Hot.

22-NA-205

Service Bulletin/Repair Instructions

This service bulletin provides information on Module Harvesting.

PIP5175E

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that may have a delayed engagement into drive, shudder at a launch, or the transmission is slipping when shifting into 1st, 2nd, 3rd or 4th gears. This may be due to loose stator support to pump cover bolts causing a leak at the stator support to pump cover gasket. Technician will check for the bolts to be loose. If any of the bolts are loose or the gasket is misaligned or leaking, the transmission pump cover must be replaced and the 1234 clutch plates should be inspected for being distressed and repaired as needed.

PIT3665L

Service Bulletin/Repair Instructions

This Preliminary Information communication advises the technician that the Hydro-Boost is not serviceable and will need to be replaced if the brake pedal moves or applies on its own at a full turn.

22-NA-201

Service Bulletin/Repair Instructions

This technical bulletin provides repair information to correct a customer concern of MIL L5P ECM/TCM Update with DTCs Set.

PIT5702D

Service Bulletin/Repair Instructions

This Preliminary information communication provides information to the technician on installing Regular Production Option Code 9L7 Up-fitter Auxiliary Switches. Technician will need to reference the latest version of General Motors Up-fitter Integration Bulletin 153. The information can be found at http://www.gmupfitter.com/ under the "Technical Bulletin" Tab and then "Show all bulletins."

21-NA-006

Service Bulletin/Repair Instructions

This bulletin provides a possible location of a bad connection at the reductant fluid tanks electrical connector.

10-00-89-006I

Service Bulletin/Repair Instructions

This service bulletin provides information for dealers on how to submit a product information report (PIR) (Canada Only).

99-00-89-019X

Service Bulletin/Repair Instructions

This Warranty Administration bulletin provides information on the Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program.

PIP5882

Service Bulletin/Repair Instructions

This Preliminary information communicates diagnostic aid to help isolate possible repeat thermal by-pass valve concern.

PIE0665C

Service Bulletin/Repair Instructions

This engineering information (EI) closure ends the need for further information from the field in regards to Service Engine Soon (SES) Lamp illuminated and/or “Service Emissions System” message on the Driver Information Center (DIC).

22-NA-185

Service Bulletin/Repair Instructions

This informational bulletin explains how the trans slip or flare can be a normal condition.

22-NA-195

Service Bulletin/Repair Instructions

This service bulletin provides information on Handling Requests for Modifications to Permanently Import/Export Vehicles Between the U.S. and Canada.

03-06-04-017R

Service Bulletin/Repair Instructions

This service bulletin provides information on availability of Diesel Fuel additives.

PI0592G

Service Bulletin/Repair Instructions

This preliminary information (PI) provides information om Service Programming System (SPS) Error Codes (E4398, E4399, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491 or E6961).

PIP5810A

Service Bulletin/Repair Instructions

This Preliminary information communicates that the tool for the HD transfer cases to install the input seal during a repair is incorrect and a new tool is in development.

05-06-04-022T

Service Bulletin/Repair Instructions

This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL.

06-00-89-031H

Service Bulletin/Repair Instructions

This service bulletin provides information on OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification.

07-06-01-016H

Service Bulletin/Repair Instructions

This service bulletin provides information on Internal Engine Noise or Damage After Oil Filter Replacement.

13-08-116-001H

Service Bulletin/Repair Instructions

The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them.

15-00-89-004E

Service Bulletin/Repair Instructions

This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.

01-00-89-010Q

Service Bulletin/Repair Instructions

This service bulletin provides information on a guide to help reduce repeat visits for the same customer concern.

05-00-89-072F

Service Bulletin/Repair Instructions

This service bulletin provides the technician with additional information on fuels, fuel additives and fuel management.

09-06-04-026W

Service Bulletin/Repair Instructions

This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.

PIP5621C

Service Bulletin/Repair Instructions

This Preliminary information communicates to the dealer  technician that TAC recommends the utilization of the GDS2 software to aid in diagnosing automatic transmission concerns. TAC is requesting the GDS2 session logs be sent in before the dealer contacts TAC.

00-06-01-012L

Service Bulletin/Repair Instructions

This service bulletin advises about the possible issues that may occur when using a scotch brite pad or highly abrasive disk on gasket sealing surfaces or reused parts.

01-06-01-011M

Service Bulletin/Repair Instructions

This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.

03-06-04-017Q

Service Bulletin/Repair Instructions

This service bulletin provides information on availability of Diesel Fuel additives.

04-06-04-051G

Service Bulletin/Repair Instructions

This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.

10-06-05-002K

Service Bulletin/Repair Instructions

This informational bulletin provides information on Clean Exhaust Filter See Owners Manual Now or Cleaning Exhaust Filter Keep Driving Until Message is Cleared messages Displayed on DIC, DTC P2463 May Be Set.

00-06-01-026P

Service Bulletin/Repair Instructions

This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage.

11-00-89-005U

Service Bulletin/Repair Instructions

This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S. Only).

19-NA-187

Service Bulletin/Repair Instructions

This bulletin provides additional information on how to graph a cylinder misfire and a possible diagnostic cause.

21-NA-113

Service Bulletin/Repair Instructions

This technical bulletin provides a procedure to perform a learn procedure for the turbo actuator.

21-NA-182

Service Bulletin/Repair Instructions

This service bulletin provides repair information to correct a customer concern of Radio System Settings Lost or Returning to Default Values.

PIE0665B

Service Bulletin/Repair Instructions

This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to Service Engine Soon (SES) Lamp illuminated and/or “Service Emissions System” message on the Driver Information Center (DIC).

05-00-89-029E

Service Bulletin/Repair Instructions

This service bulletin provides information on General Motors Dealership Critical Equipment Requirements and Recommendations.

22-NA-181

Service Bulletin/Repair Instructions

This diagnostic tip advises the tech not to separate the flexplate from the torque convertor or damage my occur if the engine is started while diagnosing for noise from the engine or transmission.

03-06-01-023F

Service Bulletin/Repair Instructions

This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.

11-00-89-005T

Service Bulletin/Repair Instructions

This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S. Only).

20-NA-105

Service Bulletin/Repair Instructions

This technical bulletin provides repair information to correct a customer concern of 360 Camera Views go Blank with Tailgate Removed.

20-NA-065

Service Bulletin/Repair Instructions

This bulletin provides information on tools available to find an intake vacuum leak or exhaust leak to correct a condition of MIL Illuminated with Multiple Fuel Trim and/or Oxygen Sensor Codes Set.

21-NA-027

Service Bulletin/Repair Instructions

This technical bulletin provides a procedure to install 2 way tape to correct a condition of Trailering Connector Loose Within Rear Bumper.

21-NA-199

Service Bulletin/Repair Instructions

This informational bulletin advises the technician to replace the TBV if the transmission has any type of repair even if no problem was found, to replace the tbv.

22-NA-161

Service Bulletin/Repair Instructions

This informational bulletin provides information for dealers/technicians on power folding mirrors do not fold at the same speed.

PIT5853A

Service Bulletin/Repair Instructions

This Preliminary information communicates information on correcting a rattle noise on driver side of cowl heat shield.

04-00-89-015X

Service Bulletin/Repair Instructions

This bulletin provides information on Warranty Administration – Required Operating Procedures - 8 Points (U.S. Only).

PIT5569B

Service Bulletin/Repair Instructions

This Preliminary information communicates direction and examples when diagnosing multiple DTCs, one of which includes U**** Byte 71 DTC.

PIT4261H

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles with tire sidewall irregularities. This is a visual condition that will not affect durability, reliability or performance of the tires. Dealer should communicate to the customer that slight sidewall indentations are a common characteristic of radial tire construction.

22-NA-135

Service Bulletin/Repair Instructions

This warranty admin bulletin covers information on Essential Tools that include Consumable Parts.

12-01-37-001F

Service Bulletin/Repair Instructions

This service bulletin provides information to dealership personnel on a new refrigerant (R1234yf) for A/C service.

22-NA-123

Service Bulletin/Repair Instructions

This technical bulletin provides repair information to correct a customer concern of Black Radio Display Screen and No Communication with the Video Processing Module (VPM).

PIT5448H

Service Bulletin/Repair Instructions

This Preliminary Information communication advises the technician with a tip when the vehicle stops running after it has been idling for 2.5 hours. This is normal operation of the vehicle built with regular production code BTM and without Regular Production Option Code AVF. If the vehicle was built with regular production code BTM and AVF only has a 1 hour idle time.

21-NA-097

Service Bulletin/Repair Instructions

This technical bulletin provides a procedure to install a pice of foam between the heater core pipes to correct the customers concern.

PIT5099F

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature.

21-NA-077

Service Bulletin/Repair Instructions

This informational bulletin provides information for dealers/technicians on Aero Shutter Related Diagnostic Codes.

PIT5921

Service Bulletin/Repair Instructions

This Preliminary information communicates diagnostics aids for rear view camera issues that may be encountered.

PIE0695A

Service Bulletin/Repair Instructions

This engineering information (EI) closure ends the need for further information from the field in regards Service Emission System and/or DEF Level Low message on driver information center (DIC).

PIE0665A

Service Bulletin/Repair Instructions

This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to Service Engine Soon (SES) Lamp illuminated and/or “Service Emissions System” message on the Driver Information Center (DIC).

22-NA-109

Service Bulletin/Repair Instructions

This informational bulletin provides information on Information on Common Customer Trailer Side Faults.

22-NA-110

Service Bulletin/Repair Instructions

THis informational bulletin advises the tech not to replace the exhaust system if they smell plastic or rubber.

20-NA-218

Service Bulletin/Repair Instructions

This service bulletin provides repair information to correct a customer concern of Possible Crank No Start or Extended Crank with DTC P12A6.

14-06-04-004H

Service Bulletin/Repair Instructions

This informational bulletin explains the normal noises an engine may make when the ambient temperature outside is cold or the vehicle has sat for a few hours.

PIE0695

Service Bulletin/Repair Instructions

This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards Service Emission System and/or DEF Level Low message on driver information center (DIC).

12-00-89-003B

Service Bulletin/Repair Instructions

This service bulletin provides policy information on warranty administration guidelines for multiple repairs with independent causes (GM Canada Dealers Only).

20-NA-050

Service Bulletin/Repair Instructions

This technical bulletin provides a procedure to clear the codes and test the Tcase if found that the customer has tried to shift the t-case from 4lo to Hi gears while driving.

03-06-01-023E

Service Bulletin/Repair Instructions

This information bulletin explains how to measure for oil consumption and possible reasons for loss of oil.

N212354170-02

Service Bulletin/Repair Instructions

Emission Recall - General Motors has decided to conduct a Voluntary Emissions Recall to improve the operation of the regeneration cycle on certain 2020 Chevrolet Silverado and GMC Sierra vehicles with a 6.6L diesel engine. The recall will address that currently under certain operating conditions, higher than necessary temperatures may be used to clean the Diesel Particulate Filter (DPF) during the regeneration cycle. Dealers are to reprogram the Engine Control Module (ECM) and Transmission Control Module (TCM).

PIP5794B

Service Bulletin/Repair Instructions

This Preliminary information communicates diagnostics to the dealer involving a vehicle shudder concern caused by the camshaft actuator system that can be mistaken for a transmission issue.

PIC5260E

Service Bulletin/Repair Instructions

This Preliminary Information communication advises the technician the steps on diagnosing the concern. Customer's sunroof operation intermittent, bind, noise, auto-reverse, and/or water leaks.

01-00-89-010P

Service Bulletin/Repair Instructions

This informational bulletin provides information on a guide to help reduce repeat visits for the same customer concern.

PI0281I

Service Bulletin/Repair Instructions

This preliminary informational (PI) bulletin provides information to dealership personnel which may be helpful when addressing underbody component corrosion with customers.

01-00-89-010O

Service Bulletin/Repair Instructions

This informational bulletin provides information on a guide to help reduce repeat visits for the same customer concern.

PIT5836

Service Bulletin/Repair Instructions

This Preliminary information communicates and issue with the park assist off message or unwanted/false parking assist alerts and provide diagnostics tip for dealership to inspect the parking assist sensor/bezel mounting in the front and rear bumpers

PIP4670J

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about a no start or another concern after swapping an Engine Control Module or other modules from one vehicle to another. The Global Architecture electrical system associated with these vehicles does not allow controller swaps between vehicles.

20-NA-209

Service Bulletin/Repair Instructions

This technical bulletin provides repair information to correct a customer concern of Service 4WD Message illuminated on Driver Information Center (DIC), DTCs C118D, C119B and/or C119C set.

04-06-04-051F

Service Bulletin/Repair Instructions

This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.

PIP5844

Service Bulletin/Repair Instructions

This Preliminary information communicates the possibility of dtc p06DD due to low or no oil pressure immediately following engine oil and filter change due to oil filter and main oil gallery being drained or empty.

12-08-51-002N

Service Bulletin/Repair Instructions

This informational bulletin provides technicians and dealership personnel with spray-in bed liner general information and repair procedures.

PIP5838A

Service Bulletin/Repair Instructions

This Preliminary information communicates to the dealership technician a change made to the wire harness and reductant control module for the Diesel Exhaust Fluid tank connector.

PIT3271M

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles. General Motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. Technician should not use the information that is provided by the antilock braking system tire size selection.

PIT5746B

Service Bulletin/Repair Instructions

This Preliminary information communicates information on how dealers can contact the supplier for Associated Accessories offered through GM.

20-NA-207

Service Bulletin/Repair Instructions

This service bulletin informs the technician to inspect for a possible electrical concern at the ECM X2 electrical connector to correct a customer concern of Malfunction Indicator Lamp (MIL) Illuminated - DTC P0333 Set.

PIP5706A

Service Bulletin/Repair Instructions

This Preliminary information communicates to the dealer a condition with the throttle body that may illuminate the service engine soon light, cause the engine to run rough and/or display reduced engine power message. Dealers are instructed to replace the throttle body assembly and install a grounding wire from the throttle body to the valve cover to prevent future failures.

PIT5750B

Service Bulletin/Repair Instructions

This Preliminary information communicates an issue with the battery goes dead and provides diagnostics tips on inspecting the LIN bus.

21NA182

Service Bulletin/Repair Instructions

This service bulletin provides repair information to correct a customer concern of Radio System Settings Lost or Returning to Default Values.

PIP5838

Service Bulletin/Repair Instructions

This Preliminary information communicates to the dealership technician a change made to the wire harness and reductant control module for the Diesel Exhaust Fluid tank connector.

PIT5747B

Service Bulletin/Repair Instructions

This Preliminary information communicates to dealership how to test properly trailer light option on the truck and also provide additional information on trailer issues.

PIT5732B

Service Bulletin/Repair Instructions

This Preliminary information provides information to the technician on relocating the DEF tank to install a service body. Technician will need to reference the latest version of General Motors Up-fitter Integration Bulletin 156. The information can be found at http://www.gmupfitter.com/ under the "Technical Bulletin" Tab and then "Show all bulletins."

PIT5733B

Service Bulletin/Repair Instructions

This Preliminary information provides information to the technician on installing a roof beacon light. Technician will need to reference the latest version of General Motors Up-fitter Integration Bulletin 157. The information can be found at http://www.gmupfitter.com/ under the "Technical Bulletin" Tab and then "Show all bulletins."

21NA135

Service Bulletin/Repair Instructions

This service bulletin provides information to inform dealership personnel about Law Enforcement and Government vehicles that request to disable or enable content.

N212342980-01

Service Bulletin/Repair Instructions

Service Update. On certain vehicles equipped with a 6.6L diesel engine (RPO L5P), the DEF tank connector may overheat and set the following diagnostic codes (P10D9, P143C and P10F3), which will result in reduced engine speed. Dealers are to reprogram the reductant control module.

090604026V

Service Bulletin/Repair Instructions

Information.

22NA018

Service Bulletin/Repair Instructions

This service bulletin provides information for the Global Warranty Management (GWM) Warranty Parts Center (WPC) Part Photo Return Process (U.S. Dealers Only).

21NA214

Service Bulletin/Repair Instructions

This technical bulletin provides repair information to correct a customer concern of Service Engine Soon Lamp Illuminated, Harsh or Delayed Transmission Shifts Including Slip, Surge, Shudder, Noise, Whine, Growl, Shake and/or Vibration, DTCs P2002, P2463, P2459, P144E, P0421, P0422, P0106 and/or P20EE Set Current or in Recent History.

PIP5791A

Service Bulletin/Repair Instructions

This Preliminary information communicates to dealership technicians to perform a sweep of the coolant flow control valve and test the circuits before replacing the Engine Coolant Flow Control Valve, and to assist engineering in root causing the P2B60.

PIP5808A

Service Bulletin/Repair Instructions

This Preliminary information communicates to technicians to replace the ECM and affected sensor if diagnostics leads to replacement of the ECM.

21NA275

Service Bulletin/Repair Instructions

This service bulletin provides repair information to correct customer concerns of Rear Wheel Lock Up, ABS Event, Loud Bang and a Flashing ?D? on Driver Information Center (DIC) when Lightly or Moderately Accelerating Forcing an 8-7 or 8-6 Downshift.

PIP5711B

Service Bulletin/Repair Instructions

This Preliminary information communicates to the dealer technicians a warm engine knock noise has no short or long term effects on the engine. Do not attempt repairs for this noise.

PIT4322M

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that have an unwanted Stability Activation and/or a Service Stability message on the Driver Information Center. Technician may find a Diagnostic Trouble Code C0710. Technician should inspect for vehicles modifications before any in-depth diagnostics are performed.

N212342980

Service Bulletin/Repair Instructions

On certain vehicles equipped with a 6.6L diesel engine (RPO L5P), the DEF tank connector may overheat and set the following diagnostic codes (P10D9, P143C and P10F3), which will result in reduced engine speed. Dealers are to reprogram the reductant control module.

18NA073

Service Bulletin/Repair Instructions

This service bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and prevent unnecessary engine replacement.

20NA043

Service Bulletin/Repair Instructions

This informational bulletin advises the technician to not replace the TMAP sensor, clean it using air or harsh chemicals but allow time for the sensor to thaw.

22NA012

Service Bulletin/Repair Instructions

This service bulletin provides information for dealers/technicians on Stone Chip/Membrane Damage, Broken Connector and/or Sensor Retaining Tabs, and/or Paint Damage of Park Assist Sensors.

PIP4902P

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Technician will need use Global Diagnostic System 2 to send the session logs to General Motors Technical Assistance Center for further assistance on the vehicle in question.

PIT5386G

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that are found to have a back-up alarm inoperative during the Pre-Delivery Inspection. On trucks equipped with the Back Up Alarm (RPO 8S3), the alarm will be intentionally left disconnected from the assembly plant. Technician will reroute the harness and plug it in.

PIT5479E

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about fluid leaking from the brake caliper piston area found during a service of the vehicle. The substance is actually excess assembly grease from the caliper boot and piston installation. This grease can be cleaned off and the rest of the service completed.

PIP5632F

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Technician will need use Global Diagnostic System 2 to send the session logs to General Motors Technical Assistance Center for further assistance on the vehicle in question.

PIT5744B

Service Bulletin/Repair Instructions

This Preliminary information communicates information on how to disable the Side Blind Zone Detection and Park Assist systems when a customer removes the pickup box from the vehicle to install an aftermarket bed or body.

20NA110

Service Bulletin/Repair Instructions

This service bulletin provides service information for a DEF pump that is unable to build pressure after replacement.

19NA187

Service Bulletin/Repair Instructions

This bulletin provides additional information on how to graph a cylinder misfire and a possible diagnostic cause.

20NA203

Service Bulletin/Repair Instructions

This informational bulletin explains how the regen works for the DEF system and how it works at different levels.

22NA009

Service Bulletin/Repair Instructions

This service bulletin provides service information on new torque specification and installation procedure for ACDelco Spin-On Oil Filters.

19NA237

Service Bulletin/Repair Instructions

This informational bulletin explains how to identify possible DEF contamination.

21NA113

Service Bulletin/Repair Instructions

This technical bulletin provides a procedure to perform a learn procedure for the turbo actuator.

21NA005

Service Bulletin/Repair Instructions

This technical bulletin provides a procedure to replace the air bag and air bag harness to correct a condition of Airbag Malfunction Warning and Airbag Malfunction Indicator Illuminated with DTC B0001-1B due to corrosion.

PIP5832

Service Bulletin/Repair Instructions

This Preliminary information communicates to the dealer an issue where a vehicle may be exhibiting an engine noise condiion. The dealer is instructed on how to isolate the noise to a specific area of the engine for further diagnosis.

PIP5628E

Service Bulletin/Repair Instructions

This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D

20NA197

Service Bulletin/Repair Instructions

This technical bulletin provides a procedure to inspect and repair the fuel pressure sensor if found the cause of the customers concern.

PIP5735A

Service Bulletin/Repair Instructions

This Preliminary information communicates to dealer technicians normal operating characteristics of the turbocharger exhaust brake.

PIT5828A

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about customers that may request the factory Integrated Trailer Brake Controller Regular Production Option Code (JL1) be installed on their Full-Size Pickup or SUV when the vehicle was not ordered with the option. Dealer should advise the customer it cannot be added to the vehicle.

21NA237

Service Bulletin/Repair Instructions

THis technical bulletin provides a procedure to perform a cooling system flush to remove possible debris from the cooling system pipes.

21NA265

Service Bulletin/Repair Instructions

This technical bulletin provides a procedure to re-route the coolant hose away from the front prop shaft to avoid contact.

21NA238

Service Bulletin/Repair Instructions

This technical bulletin provides a procedure to inspect the front pump of the transmission for a possible leak.

19NA104

Service Bulletin/Repair Instructions

This service bulletin provides information for dealers/technicians and customers on steam/vapor coming from the front grille or radiator area.

21NA247

Service Bulletin/Repair Instructions

This technical bulletin provides a procedure This technical bulletin provides repair information to correct a customer concern of Unable to Set PIN to Enable Teen Driver Feature.

20NA188

Service Bulletin/Repair Instructions

This technical bulletin provides repair information to correct a customer concern of Rear View Camera Image Flickers When Brake Lamps or Turn Signals are On.

PIT5448G

Service Bulletin/Repair Instructions

This Preliminary Information communication advises the technician with a tip when the vehicle stops running after it has been idling for 2.5 hours. This is normal operation of the vehicle built with regular production code BTM and without Regular Production Option Code AVF. If the vehicle was built with regular production code BTM and AVF only has a 1 hour idle time.

PIP5806D

Service Bulletin/Repair Instructions

This preliminary information bulletin instructs to technicians to check the trigger wheel for interfering with the timing chain, and adding a shim to the camshaft position sensor.

PIT5853

Service Bulletin/Repair Instructions

This Preliminary information communicates information on correcting a rattle noise on driver side of cowl heat shield.

PIT5752B

Service Bulletin/Repair Instructions

This Preliminary information communicates multiple vehicle issues caused by an aftermarket device and it gives dealership information where to inspect for this device.

PIT5544E

Service Bulletin/Repair Instructions

This Preliminary information communicates information on a hydrauilc rush type noise from the power steering gear. This noise is a characteristic of the new Active Hydraulic Assist System RPO NV8 and no repairs should be made.  The noise is most noticeable in the cab at idle, in park, with all accessories turned off.

PIT5662F

Service Bulletin/Repair Instructions

This Preliminary information communicates information to diagnose DTC C056D or C056E.

PIT5743A

Service Bulletin/Repair Instructions

This Preliminary information communicates diagnostic tips when trying to root cause a SES MIL with DTC's B2B0D and B2B0E.  Main cause is aftermarket electrical devices spliced into the ignition main fuses.

PIT3099U

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about installing General Motors Accessory parts/kits.  Technicians should refer to Service Information for information regarding most accessories.  Technicians may also contact PARTECH and/or the Techline Customer Support Center for additional support.

PIP5806B

Service Bulletin/Repair Instructions

This preliminary information bulletin instructs to technicians to check the trigger wheel for interfering with the timing chain, and adding a shim to the camshaft position sensor.

PIT5509H

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicle that may have a "Check Trailer Wiring" or "Service Trailer Brake System? message on the Driver Information Center when a trailer is connected to the vehicle. Diagnostic Trouble Code C1114 set in the Chassis Control Module. Chassis Control Module has to determine the type of trailer brake system that is being used. The Chassis Control Module can be sensitive to a variety of trailer wiring issues. The technician will need to make a trailer tester using Electric Trailer Brake Magnets and 7-way trailer connector to determine if it is a vehicle or trailer issue. If the concern is not duplicated with the tester installed, the vehicle is operating correctly and the focus should be on the trailer wiring or 7 way connector.

21NA145

Service Bulletin/Repair Instructions

This service bulletin provides U157 software update information to correct customer concerns of radio Software related issues.

PIE0642A

Service Bulletin/Repair Instructions

This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards the Service Engine Soon (SES) lamp illuminated and/or Service Emission System Message on the Driver Information Center (DIC).

21NA025

Service Bulletin/Repair Instructions

This technical bulletin provides a procedure to replace the Fuel Power Module if found the cause of the customers concern.

PIE0642

Service Bulletin/Repair Instructions

This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards the Service Engine Soon (SES) lamp illuminated and/or Service Emission System Message on the Driver Information Center (DIC).

070089037P

Service Bulletin/Repair Instructions

This warranty administration bulletin provides policy information for GM courtesy transportation and roadside assistance programs.

100089006H

Service Bulletin/Repair Instructions

This service bulletin provides information for dealers on how to submit a product information report (PIR) (Canada Only).

070842006P

Service Bulletin/Repair Instructions

This service bulletin provides technicians with information on available BCM calibrations to restore bulb outage detection on vehicles produced by a second stage manufacturer (Upfitter), and/or turn signals flash fast after factory box removed.

PIT5809A

Service Bulletin/Repair Instructions

This Preliminary information communicates an issues with a pop, clunk, knock, rattle type noise heard from the steering column over bumps and ask dealerships to replace the upper column shaft.

21NA006

Service Bulletin/Repair Instructions

This bulletin provides a possible location of a bad connection at the reductant fluid tanks electrical connector.

20NA218

Service Bulletin/Repair Instructions

This technical bulletin provides repair information to correct a customer concern of Possible Crank No Start or Extended Crank with DTC P12A6.

21NA002

Service Bulletin/Repair Instructions

This informational bulletin provides a test procedure, for a possible faulty DEF Heater.

20NA105

Service Bulletin/Repair Instructions

This technical bulletin provides repair information to correct a customer concern of 360 Camera Views go Blank with Tailgate Removed.

PIE0590A

Service Bulletin/Repair Instructions

This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards check to the engine lamp being illuminated on the drivers information center (DIC).

20NA175

Service Bulletin/Repair Instructions

This technical bulletin provides repair information to correct a customer concern of vertical misalignment between cab and pickup box on driver side of vehicle.

PIE0603B

Service Bulletin/Repair Instructions

This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the rear sliding window leaking water.

20NA199

Service Bulletin/Repair Instructions

This technical bulletin provides programming information for Radio Software Version U150 Update to correct software issues on infotainment systems IOS, IOT or IOU.

PIE0584A

Service Bulletin/Repair Instructions

This engineering information (EI) is requesting information from technicians to provided the engineers listed in regards to No Trailer Lights, No Brake Lights and/or Trailer Tow Receptacle is Loose.

PIE0603A

Service Bulletin/Repair Instructions

This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the rear sliding window leaking water.

PIE0604

Service Bulletin/Repair Instructions

GSA Example: This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the service 4WD message illuminated on the drivers information center (DIC).

20NA198

Service Bulletin/Repair Instructions

This technical bulletin provides repair information to correct a customer concern of seeing the trailer running lights shut off due to excessive load on the running lamp circuit.

PIE0603

Service Bulletin/Repair Instructions

This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the rear sliding window leaking water.

PIE0583B

Service Bulletin/Repair Instructions

This engineering information (EI) is requesting information from technicians and to contact the engineers listed in regards to Transmission Performance Issues without a Current or History DTC and Unable to Duplicate the Customer Concern (CCND).

PIP5733F

Service Bulletin/Repair Instructions

This Preliminary information communicates Possible Crank no start or extended crank with DTC p12A6 set current or history.  Under Investigation

PIT3271K

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles. General Motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. Technician should not use the information that is provided by the antilock braking system tire size selection.

18NA098

Service Bulletin/Repair Instructions

This informational bulletin provides information for the technicians on where to look on the Duramax engine for coolant leaks.

PIE0594A

Service Bulletin/Repair Instructions

This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards an intermittent no start.

20NA195

Service Bulletin/Repair Instructions

This technical bulletin provides a procedure to replace the NOx2 sensor if found the cause of the customers concern.

PIP5753

Service Bulletin/Repair Instructions

PIP5753 created to advise the technician to inspect for loose bolts on the turbocharger if there is a performance issue and code set.

PIP5733D

Service Bulletin/Repair Instructions

This Preliminary information communicates Possible Crank no start or extended crank with DTC p12A6 set current or history.  Under Investigation

PIT5752

Service Bulletin/Repair Instructions

This Preliminary information communicates multiple vehicle issues caused by an aftermarket device and it gives dealership information where to inspect for this device.

PIT5737B

Service Bulletin/Repair Instructions

This Preliminary information communicates an XM service concern of no audio at startup until a channel change and directs to contact XM for direct support.

PIT5754

Service Bulletin/Repair Instructions

This Preliminary information communicates information on radio software anamolies and future radio software updates to correct the concern.

20NA194

Service Bulletin/Repair Instructions

This technical bulletin provides repair information to correct a customer concern of Hard Tri-Fold tonneau water leaks at the front corners of the pickup box.

20NA192

Service Bulletin/Repair Instructions

This technical bulletin provides a procedure to try multiple different adjustments based on the condition of Steering Dither/Shake or Quick Steering Wheel Oscillation at Speeds of 80-129?km/h (50-80?mph).

PIT5756

Service Bulletin/Repair Instructions

This Preliminary information communicates an issue with the underhood electrical center bolts being loose which can cause any of the following symptoms: - No crank - No start - Starter grinds or reengages after engine running - Headlights flicker or flash - SES MIL - IPC gauges sweep/fluctuate and various IPC warning lights or messages - High or low system voltage Some of these concerns may be notices with powertrain movement, like when either accelerating or braking.

PIP5751

Service Bulletin/Repair Instructions

This PI was created to gather data to root cause the P06DD and/or oil consumption

PIE0583

Service Bulletin/Repair Instructions

This engineering information (EI) is requesting information from technicians to provided the engineers listed in regards to Early, Late, Harsh and/or Slip Type Transmission Performance.

20NA020

Service Bulletin/Repair Instructions

This technical bulleti provides a procedure to replace the front and rear brake pads if the brakes are squealing.

20NA021

Service Bulletin/Repair Instructions

This technical bulletin provides repair information to correct a customer concern of Intermittent "Service Steering Column Lock" message displayed with U0155 Set.

17NA374

Service Bulletin/Repair Instructions

This informational bulletin advises the technician of how the Soot information has changed from grams to percentage.

19NA255

Service Bulletin/Repair Instructions

This preliminary informational bulletin provides frame coating repair information to correct a customer concern of wax coating on frame peeling, metal shows corrosion/rusting (U.S. and Canada Only).

PIP5684B

Service Bulletin/Repair Instructions

This Preliminary information communicates the use of air leak diagnostic test tool CH-52250 in addition to the information found in the service manual.

PIP5504F

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information and definitions to the technician about vehicles that have fishbite, chuggle, misfire, AFM disturbances or torque converter shudder/vibration concerns. Technician are advised to use PICO software to determine root cause of the concern. If torque converter shudder is confirmed technicians are referred to Torque Converter Diagnosis in SI.

PIT5755

Service Bulletin/Repair Instructions

This Preliminary information communicates an issue with the Electronic Brake Control Module incorrectly mapping DTC U0126 as a U0131 and directs the dealership to follow the diagnostics for the U0126.

N202306491 Messa

Service Bulletin/Repair Instructions

Service Update (Revised Population). The purpose of this service update is to provide the customer with a goodwill gift to offset customer inconvenience, restore confidence in GM, and maintain loyalty to GM. The vehicles involved in this service update have previously had a hood assembly replacement under recall N192284960. These customers are now being asked to bring their vehicle back in for another hood replacement under Safety Recall N202306490. For their inconvenience, dealers are to offer the customer a selection of one of the available goodwill tools listed in this bulletin. Because each customer has unique preferences, please offer all options found in this bulletin to the customer and allow them to select the one that best suits their situation. Please note that not all vehicles in Safety Recall N202306490 are included in this service update. The goodwill offer described in this bulletin should be presented to the involved customer when they pick up their vehicle after having Safety Recall N202306490 performed on the vehicle. Population reduced.

PIP5733

Service Bulletin/Repair Instructions

This Preliminary information communicates Possible Crank no start or extended crank with DTC p12A6 set current or history.  Under Investigation

N202306491

Service Bulletin/Repair Instructions

Service Update. The purpose of this service update is to provide the customer with a goodwill gift to offset customer inconvenience, restore confidence in GM, and maintain loyalty to GM. The vehicles involved in this service update have previously had a hood assembly replacement under recall N192284960. These customers are now being asked to bring their vehicle back in for another hood replacement under Safety Recall N202306490. For their inconvenience, dealers are to offer the customer a selection of one of the available goodwill tools listed in this bulletin. Because each customer has unique preferences, please offer all options found in this bulletin to the customer and allow them to select the one that best suits their situation. Please note that not all vehicles in Safety Recall N202306490 are included in this service update. The goodwill offer described in this bulletin should be presented to the involved customer when they pick up their vehicle after having Safety Recall N202306490 performed on the vehicle.

N202300791

Service Bulletin/Repair Instructions

Service Update - In some vehicles, equipped with diesel engines, the Diesel Exhaust Fluid (DEF) system may not immediately reactivate, as it should, after the vehicle?s control system finds that a DEF heater fault is no longer present. In these vehicles, after such a fault is detected as absent, DEF system reactivation, including DEF injection, may not occur until the ignition key is cycled. Dealers are to reprogram the reductant control module.

N202299520

Service Bulletin/Repair Instructions

Customer Service Program - Certain vehicles may not have the backup alarm which should have been included the dealer kit. Dealers are to provide the missing backup alarm to the customer.

20NA036

Service Bulletin/Repair Instructions

This informational bulletin provides information for dealers/technicians on Rear Camera Gridlines Incorrect, Misaligned, Offset, Incorrect Camera View after Replacing the Tailgate Handle or Entire Tailgate.

N192282860 01

Service Bulletin/Repair Instructions

Service Update. Certain vehicles may have a condition where the transmission enters a neutral state when the internal range sensor (IRS) fault is active. Dealers are to reprogram the transmission control module.

PIP5727

Service Bulletin/Repair Instructions

This Preliminary information communicates diagnostic tips on finding root cause of a hoot noise. If the technician confirms the hoot noise is only present while the torque converter clutch is applying the technician should advise the customer that  the noise will diminish over mileage and should dissipate after 3,000 ? 4,000 miles of driving and does not pose a durability concern.

20NA096

Service Bulletin/Repair Instructions

This informational bulletin provides information for dealers/technicians on Glow Plug Control Module Update.

090089002R

Service Bulletin/Repair Instructions

This informational bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before sold (prepping) to the customer.

PIT5743

Service Bulletin/Repair Instructions

This Preliminary information communicates diagnostic tips when trying to root cause a SES MIL with DTC's B2B0D and B2B0E.  Main cause is aftermarket electrical devices spliced into the ignition main fuses.

000310003Z

Service Bulletin/Repair Instructions

This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S. Dealers Only).

PIP5719B

Service Bulletin/Repair Instructions

This Preliminary information communicates the possibility of dtc P12A6 with the possibility of a crank no start or extended crank concern.

PIT5195F

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that the speedometer needle appears to be inaccurate. Dealer should advise the customer the specification for speedometer needle accuracy is +/- 2 MPH at any given speed when looking straight at the needle.

PIE0560A

Service Bulletin/Repair Instructions

This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to a Service 4WD message being visible on the driver information center (DIC).

PIT4322K

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that have an unwanted Stability Activation and/or a Service Stability message on the Driver Information Center. Technician may find a Diagnostic Trouble Code C0710. Technician should inspect for vehicles modifications before any in-depth diagnostics are performed.

20NA087

Service Bulletin/Repair Instructions

This technical bulletin provides repair information to correct a customer concern of Blank Radio Display or No Audio.

20NA083

Service Bulletin/Repair Instructions

This technical bulletin provides a procedure to check the oil level for correct reading and oil pressure switch is in working order.

20NA012

Service Bulletin/Repair Instructions

This Technical bulletin provides service procedure information for dealers/technicians on Radio Software Version V135116 Over-the-Air Update.

20NA040

Service Bulletin/Repair Instructions

This technical bulletin provides repair information to correct a customer concern of the pickup box power endgate may not open on initial press, or may not open at all.

20NA019

Service Bulletin/Repair Instructions

This technical bulletin provides a procedure to replace the transmission shifter control if found the cause of the condition.

050310020G

Service Bulletin/Repair Instructions

This informational bulletin provides information for dealers/technicians on Use of Nitrogen Gas in Tires.

20NA035

Service Bulletin/Repair Instructions

This technical bulletin provides repair information to correct a customer concern of hearing a wind whistle noise from front of vehicle while driving.

HT-03.03.2020

Service Bulletin/Repair Instructions

Hypertech Inline Speedometer Calibrator Module Installation Instructions

20NA044

Service Bulletin/Repair Instructions

This technical bulletin provides repair information to correct a customer concern of endgate will not auto open or auto close after accessory tonneau cover installation, and/or poor fit of tonneau cover to endgate.

20NA006

Service Bulletin/Repair Instructions

This informational bulletin explains there is another steering hose that can be used for cold weather drivers that experience a steering hose leak.

PIP5656D

Service Bulletin/Repair Instructions

This Preliminary Information communication advises the technician that the 6.6L Engine (RPO L8T) has been placed on Engine Exchange program and crankshaft has been placed on part ordering restriction. Dealer will need to contact General Motors Product Quality Center for further assistance.

18NA383

Service Bulletin/Repair Instructions

This technical bulletin provides repair information to correct a customer concern of water found in rear interior of cab due to water leak at rear sliding window.

16NA119

Service Bulletin/Repair Instructions

This warranty administration bulletin provide policy information to cover GMs policy on performing GM covered vehicle services and maintenance on vehicles originating/sold in Canada.

N192266750-02

Service Bulletin/Repair Instructions

Service Update - On vehicles that are equipped with a 6.6L diesel engine, may have one or more of the following conditions exist: 1. The instrument panel cluster may incorrectly display the message ?DEF Low? when a diesel exhaust fluid (DEF) controller internal fault is detected (DTC P20FF), instead of displaying the proper ?Service DEF System? message. 2. The customer may complain of excessive engine fan noise at a low vehicle speed. 3. Under certain conditions, the diagnostic system may set one of the following DTC?s when there is no problem with a component: (P20EE, P226D, P16F3 and P129F). Dealers are to reprogram the engine control module and perform NOx and Catalyst Resets and Regen Enable.

N192286190

Service Bulletin/Repair Instructions

Service Update - Certain vehicles may have a condition where the thermal cover may accelerate corrosion of the low pressure diesel hydrocarbon injector. Dealers are to remove the low pressure diesel hydrocarbon injector thermal cover.

PIE0554

Service Bulletin/Repair Instructions

This engineering information (EI) is requesting information from the field to perform the check list provided and contact the engineer in regards to Instrument Panel Cluster (IPC) Gages at Zero, Multiple Warning Lights On, No Chimes and/or Turn Single Audio.

PIT5732

Service Bulletin/Repair Instructions

This Preliminary information provides information to the technician on relocating the DEF tank to install a service body. Technician will need to reference the latest version of General Motors Up-fitter Integration Bulletin 156. The information can be found at http://www.gmupfitter.com/ under the "Technical Bulletin" Tab and then "Show all bulletins."

DOR-D8C4T-03

Service Bulletin/Repair Instructions

This SKU is a Power Window Regulator and Motor Assembly. The customer communication requested return of unsold inventory to inspect the software. The software may be too sensitive to the position of a locating magnet in the assembly causing the activation of the pinch point threshold prematurely. The window will stay open when it should have closed.

110089002D

Service Bulletin/Repair Instructions

This informational bulletin provides information on GM Accessories ? Dealer-Installed, Repaired or Replaced During Warranty Coverage Period.

20NA022

Service Bulletin/Repair Instructions

This technical bulletin provides a procedure to re-torque the leaf spring u bolts to correct a condition of Clunking Noise from Rear of Vehicle (Re-torque Leaf Spring Bolts).

19NA212

Service Bulletin/Repair Instructions

This diagnostic tip provides a procedure to aid in performing a diagnostic test to verify if the camshaft alignment pin has been sheared away to correct a crank/No Start condition.

050307009I

Service Bulletin/Repair Instructions

This informational bulletin provides retail, wholesale and fleet personnel with General Motors recommendations for customer concerns related to wheel alignment.

15NA010

Service Bulletin/Repair Instructions

This informational bulletin provides information to dealership personnel for new vehicles with less than 1,000 miles that may not pass California smog inspection or smog inspection in other states.

20NA016

Service Bulletin/Repair Instructions

This Warranty Administration bulletin provides information on customer vehicles concern results in a manufacturer repurchase from the customer, GM depends on the dealership to host and administer the repurchase closing and intake of the returning vehicle.

030846004W

Service Bulletin/Repair Instructions

This bulletin provides information regarding Part Restriction and Ordering Process Information for OnStar® Vehicle Communication Interface Modules (VCIM) (GMNA Only).

19NA216

Service Bulletin/Repair Instructions

This technical bulletin provides the tech with a procedure to check the t-case for loose fasteners and to re-torque if the cause of the concern.

16NA383

Service Bulletin/Repair Instructions

This informational bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build-up.

N192267990

Service Bulletin/Repair Instructions

N192259800 - Customer Satisfaction Program - Certain 2020 vehicles vehicles, equipped with the 6.6L diesel engine (RPO L5P), may have a condition in which the adhesive attaching the heat shield to the air inlet panel may lose adhesion. Dealers are to replace the air inlet grille panel assembly.

100089009D

Service Bulletin/Repair Instructions

This informational bulletin provides information on key code security rules and information on GM keycode look-up applications.

080089014F

Service Bulletin/Repair Instructions

This informational bulletin provides information for dealers/technicians on Use of Dealer Case Management (DCM) and Being Prepared for Contacting U.S. Technical Assistance (TAC).

19NA270

Service Bulletin/Repair Instructions

This technical bulletin provides repair information to correct a customer concern of Phone Ringer Volume Turned Down or Too Quiet.

N192279900

Service Bulletin/Repair Instructions

N192279900 - Service Update. On certain vehicles equipped with an active hydraulic assist gear (RPO NV8), the driver may experience a steering wheel vibration while driving typically at speeds from 50 mph (80 km) to 80 mph (130 km). Dealers are to reprogram the power steering control module.

120851002K

Service Bulletin/Repair Instructions

This informational bulletin provides technicians and dealership personnel with spray-in bed liner general information and repair procedures.

990420002K

Service Bulletin/Repair Instructions

This informational bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal operations.

19NA240

Service Bulletin/Repair Instructions

This technical bulletin provides repair information to correct a customer concern of steering wheel oscillation, vibration, shake 50-80 mph.

100089006G

Service Bulletin/Repair Instructions

This informational bulletin provides information for dealers how to submit a product information report (PIR) (Canada Only).

19NA231

Service Bulletin/Repair Instructions

This informational bulletin informs the technician of a possible low A/C charge in a low milage vehicle from the factory.

100605002H

Service Bulletin/Repair Instructions

This informational bulletin provides information on Clean Exhaust Filter See Owners Manual Now or Cleaning Exhaust Filter Keep Driving Until Message is Cleared messages Displayed on DIC, DTC P2463 May Be Set.

18NA361

Service Bulletin/Repair Instructions

This technical bulletin provides a procedure to flush the cooler lines to validate if there is excessive debris in the fuel system caused by a failed part.

19NA232

Service Bulletin/Repair Instructions

This informational bulletin provides tips for showing a way to confirm if its a mechanical engine issue or not.

18NA279

Service Bulletin/Repair Instructions

This informational bulletin provides information for dealers/technicians on the process to disable and enable passive unlocking.

010601011K

Service Bulletin/Repair Instructions

This informational bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.

100089009C

Service Bulletin/Repair Instructions

This informational bulletin provides information on key code security and information on GM key code look up applications.

N192266751

Service Bulletin/Repair Instructions

N192266751 - Service Update (9 VINs moved from N192266750 due to different procedure). On certain vehicles that are equipped with a 6.6L diesel engine, may have one or more of the following conditions exist: 1.The instrument panel cluster may incorrectly display the message ?DEF Low? when a diesel engine fluid (DEF) controller internal fault is detected (DTC P20FF), instead of displaying the proper ?Service DEF System? message. 2.The customer may complain of excessive engine fan noise at a low vehicle speed. 3.Under certain conditions, the diagnostic system may set one of the following DTC?s when there is no problem with a component: (P20EE, P226D, P16F3 and P129F). Dealers are to reprogram the engine control module.

19NA228

Service Bulletin/Repair Instructions

This technical provides a procedure to locate, disconnect and re-connect the TCM electrical connector if found the cause of the customers concerns.

010089010N

Service Bulletin/Repair Instructions

This informational bulletin provides information on comebacks prevention information and using customer concern verification sheets (CCVS).

18NA306

Service Bulletin/Repair Instructions

This Warranty Administration bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA) (US dealers only).

16NA372

Service Bulletin/Repair Instructions

This bulletin provides information on common diesel engine tick noises and how they are considered part of normal operation and no parts should be replaced for these normal operating conditions.

PIT5702

Service Bulletin/Repair Instructions

This Preliminary information communication provides information to the technician on installing Regular Production Option Code 9L7 Up-fitter Auxiliary Switches. Technician will need to reference the latest version of General Motors Up-fitter Integration Bulletin 153. The information can be found at http://www.gmupfitter.com/ under the "Technical Bulletin" Tab and then "Show all bulletins."

990089019R

Service Bulletin/Repair Instructions

This informational bulletin provides process information for the (GWM) and (WPC) parts return program.

17NA350

Service Bulletin/Repair Instructions

This informational bulletin provides explanation of a normal condition of a loose fitting ball receiver in the gooseneck.

N192265570

Service Bulletin/Repair Instructions

N192265570 - Service Update. Certain vehicles may have misalignment between the transmission output shaft and the transfer case input. Transfer case to transmission misalignment could cause the transfer case shift collar to slip out of engagement. Customers may experience noise, vibration, or harshness issues such as a clunk noise heard during coast down event. Dealers will perform a road test inspection and retorque the transfer case if necessary.

050604022Q

Service Bulletin/Repair Instructions

This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL.

100845001G

Service Bulletin/Repair Instructions

This bulletin provides information for electrical ground repairs using new General Motors replacement fasteners with conductive finish.

130232001F

Service Bulletin/Repair Instructions

This technical bulletin provides a procedure to flush and bleed power steering system to correct a power steering noise or fluid leak concern that is caused during extremely low temperatures.

1308116001E

Service Bulletin/Repair Instructions

The intent of this technical bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them.

PIP5656

Service Bulletin/Repair Instructions

This Preliminary Information communication advises the technician that the 6.6L Engine (RPO L8T) has been placed on Engine Exchange program. Dealer will need to contact General Motors Product Quality Center for further assistance.

000601012J

Service Bulletin/Repair Instructions

This informational bulletin advises about the possible issues that may occur when using a scotch brite pad or highly abrasive disk on gasket sealing surfaces or reused parts.

18NA150

Service Bulletin/Repair Instructions

This informational bulletin provides information on 6.6L Duramax Possible Oil Leak Path Information.

19NA074

Service Bulletin/Repair Instructions

This informational bulletin provides information to clarify installation requirements when installing Accessory wheels on 2020 Chevrolet Silverado HD and 2020 GMC Sierra HD.

060847001O

Service Bulletin/Repair Instructions

This bulletin explains the labor operation numbers used for submitting warranty claims for module reprogramming and not when replacing a module.

PIP5655

Service Bulletin/Repair Instructions

This Preliminary information communicates to the dealer technician that the 10L1000 transmission have been place on a part restriction. Dealers are to contact the Product Quality Center before replacing the transmission assembly.

19NA091

Service Bulletin/Repair Instructions

This New Model Features Bulletin provides General Information and other Topics to help the Service Personnel become familiar with features specific to the new Chevrolet Silverado and GMC Sierra 2500HD-3500HD pickup trucks.

Reading this report

Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.