Vehicle report

2015 GMC SIERRA

Compare every GMC SIERRA yearNHTSA and EPA records

Service bulletins

179 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.

PI1255E

Service Bulletin/Repair Instructions

This preliminary informational bulletin contains recommendations of what needs to be done to swap/install camper outside rearview mirrors on a vehicle not originally equipped with them.

03-03-10-007J

Service Bulletin/Repair Instructions

This informational bulletin provides information on the temporary tire flat spotting condition.

06-03-09-004H

Service Bulletin/Repair Instructions

This technical bulletin provides a procedure to lube the rear leaf springs on vehicles with the condition of a squeak noise originating from the rear of the vehicle.

PIT5161E

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.

PIT5287C

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician with the correct way to remove the front shock electrical connector terminals. Technician will need to slightly bend the end of the J-38125-12A release tool. There is a purple Terminal Position Assurance that will align itself in the release position when the release tool is inserted into the release hole. There is a metal locking tab on the terminal that will need to be pushed in before the terminal will pull out of the connector.

PIT3665E

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.

PIP5224D

Service Bulletin/Repair Instructions

This Preliminary Information communication advises the technician that the Allison LCT1000 transmission valve body part number (24262535) tank is no longer on restriction through the General Motors Product Quality Center. Dealer can now order part through the normal Customer Care and Aftersales parts process.

PIT5405C

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that have a reduced or loss of power steering assist, steering wheel jerks or kicks back when turning, Service Stabilitrak message with warning chime, engine stall, Instrument Panel Cluster going blank or inoperative, radio/Integrated Center Stack going blank, Heater-Vent-Air Conditioning going blank, hood ajar message and/or dome lamps flash when shifting into reverse, alarm sounds when locking doors or door locks cycling, and or wipers continue to run for a short time after turning off and then stop/park in the incorrect location. Technician may find Diagnostic Trouble Codes U0073, U0078, U0029, U0028, U0415, U0140, U0126, U0121, U0101, U0100, C0544, C0710, U1510, B127B, B2605, B3600, C0800, U0428, U0452, U0131, and P0513 set in the vehicle. Check the body control module ground at the G218 location. The front dash insulator mat may be trapped between the ground eyelet and the body stud. Remove the round nut and eyelet and cut the front dash insulator mat away from the ground stud so it no longer interferes with the ground stud and reinstall the eyelet and ground nut. Technician will also inspect the starter solenoid battery cable for shorting out on the starter heat shield. Technician will need to voltage drop the battery cables. The battery should be tested using the GR8. X183 or X133 should be inspected for any broken/loose/backed out terminals.

PIT5509A

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.

PIT5511A

Service Bulletin/Repair Instructions

This Preliminary Information communication advises the technician that some vehicles may have a dim Driver Information Center when the interior of the vehicle is hot from a sun load or extended heater operation. The Driver Information Center is designed to dim with high temperature exposure. This is done to protect the Driver Information Center from damage.

PIT5542

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that have an excessive lateral driver or passenger seat movement and/or a clunk/click/pop type feeling or noise. Technician will need to install a front seat lateral retainer. Technician will need to remove plastic material from the top side of the guide end of the lateral retainer to enable installation.

PIP3119N

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have a Service Engine Soon Malfunction Indicator Lamp on at low mileage. Technician may find Diagnostic Trouble Codes P0420 and or P0430 stored. Technician should be advised that the catalytic converter efficiency Diagnostic Trouble Codes P0420 and P0430 are disabled for the first hour of engine run time to allow break-in of the catalytic converter. Technician will need to use a Tech2 to check the verify engine run time on the Engine Hour Meter in the Instrument Panel Cluster Data Display/Data 1 List in the scan tool match. If the engine run time is less than one hour, the battery may have been disconnected, or another vehicle power loss event may have occurred, during vehicle manufacturing. Technician will need to clear the Diagnostic Trouble Codes and perform a drive cycle. If the catalytic converter was replaced and the Diagnostic Trouble Codes set it may be a result of the engine run time restrictions no longer being in place since the vehicle is no longer new. Technician will need to clear the Diagnostic Trouble Codes and perform a drive cycle.

PIT5233C

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that may have hard or unable to rotate ignition key concern. When the concern is present the steering wheel will need to be rotated in either direction to alleviate the pressure between the steering column lock pin and lock plate. Please communicate to the customer this condition is a normal operating characteristic of their vehicle.

PIT5418A

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician for vehicles with a black bar while on the Bluetooth audio streaming screen or USB Media Source. This concern is a normal operating characteristic of the vehicle and no repairs should be made.

PIT5540

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that have a low voltage reading on the volt gauge during the first several minutes after a cold start. Dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle.

16-NA-222

Service Bulletin/Repair Instructions

THIS INFORMATIONAL BULLETIN PROVIDES THE TECHNICIAN WITH WHAT MAY HAPPEN TO AN ENGINE DUE TO LACK OF MAINTENANCE.

PIC6179

Service Bulletin/Repair Instructions

This Preliminary Information communication advises the technician that vehicles with front seat Regular Production Option Codes A52, AZ3, or B3F may comment about low treble, or excessive bass from the front door speakers. This is a normal design characteristic for this seat configuration. These vehicles lack a subwoofer.

PIP5189A

Service Bulletin/Repair Instructions

THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLE THAT MAY HAVE BLACK SMOKE ON A COLD START. A DUAL-PULSE INJECTION STRATEGY IS UTILIZED DURING ENGINE COLD START TO REDUCE THE TIME REQUIRED TO BRING THE CATALYTIC CONVERTER UP TO OPERATING TEMPERATURE. THIS SPLIT INJECTION STRATEGY LASTS FOR ABOUT 60 SECONDS ON COLD START. THIS PROCESS MAY CAUSE THE CUSTOMER TO SEE INCREASED BLACK SMOKE DURING COLD START AND SHOULD BE CONSIDERED NORMAL.

PIC5953A

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that may have an issue when using Bluetooth voice recognition with an iPhone. Technician should work with the customer to insure the phone contacts to not have any Emojis loaded to any contact.

PIC6170

Service Bulletin/Repair Instructions

THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN WITH THE STEPS NEED TO DIAGNOSE AND REPAIR VEHICLE THAT MAY HAVE A CONCERN WITH NAVIGATION ICON NOT SHOWING THE CORRECT LOCATION THEN JUMPING TO THE CORRECT LOCATION. THE POSITION INDICATOR MAY SHOW THE VEHICLE TURNING IN THE OPPOSITE DIRECTION OR MAY SHOW THE VEHICLE TRAVELING OFF THE ROAD. TECHNICIAN WILL INSPECT THE HUMAN MACHINE INTERFACE MOUNTING. FOLLOW SERVICE INFORMATION FOR THE CORRECT ORIENTATION OF THE HUMAN MACHINE INTERFACE.

PIP5224C

Service Bulletin/Repair Instructions

THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THE ALLISON LCT1000 VALVE BODY PART NUMBER 24262535 HAS BEEN PLACED ON RESTRICTION THROUGH GENERAL MOTORS PRODUCT QUALITY CENTER. DEALER WILL NEED TO CALL GENERAL MOTORS PRODUCT QUALITY CENTER FOR FURTHER ASSISTANCE.

PIP5226A

Service Bulletin/Repair Instructions

THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT FINDING NEEDLE BEARINGS DURING AN OIL CHANGE. TECHNICIAN WILL GAIN ACCESS TO THE ROLLER ROCKERS TO INSPECT THEM. ONLY REPLACE THE ROLLER ROCKER THAT IS MISSING NEEDLE BEARINGS. BE SURE TO CLEAN THE OIL DRAINS TO RETRIEVE THE NEEDLE BEARINGS. EACH ROLLER ROCKER HAS 66 BEARINGS.

16-NA-035

Service Bulletin/Repair Instructions

This technical bulletin provides a procedure to replace the driver or passenger seat retractor side belt for vehicles with the condition of oversized and or stripped seat belt retractor bolts

PIP5104B

Service Bulletin/Repair Instructions

THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT MAY HAVE A COLD ENGINE TICK NOISE FOR 50 SECONDS AT START UP. TECHNICIAN DETERMINES IF THE TICK NOISE IS POSSIBLY COMING FROM THE EXHAUST MANIFOLD, AS THIS NOISE COULD EASILY BE MISTAKEN FOR AN ENGINE TICK NOISE. IF YOUR SI DIAGNOSIS DOES NOT ISOLATE THE CAUSE OF THIS CONCERN, THIS CONCERN SHOULD BE CONSIDERED A VEHICLE DESIGN CHARACTERISTIC OF THE ECM CALIBRATION AND NO ADDITIONAL REPAIRS SHOULD BE PERFORMED.

15-NA-007

Service Bulletin/Repair Instructions

This technical bulletin provides a procedure to reprogram the transmission control module to correct a firm garage shift, start up clunk, and DTC P16F3 condition

PI0951A

Service Bulletin/Repair Instructions

This preliminary informational bulletin provides a procedure to replace a body plug to correct a body plugs vivible on vehicles equipped with 6 inch oval accessory chrome assist steps condition

03-08-46-004R

Service Bulletin/Repair Instructions

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

16-NA-014

Service Bulletin/Repair Instructions

This technical bulletin provides a procedure on replacing the stator shaft support for vehicles with the condition of a delayed engagement after sitting with the engine off.

13-02-32-001D

Service Bulletin/Repair Instructions

This technical bulletin provides a procedure to flush and bleed the power steering system to correct a condition of power steering noise or fluid leak from power steering pump, gear or high pressure hose during extreme low temperature conditions.

16-NA-011

Service Bulletin/Repair Instructions

This technical bulletin provides a procedure to update your apple product to the latest software version to correct a condition of infotainment system will not return to media after bluetooth call ends

06-06-01-010C

Service Bulletin/Repair Instructions

This informational bulletin provides information on close coupled converters and there affect on newly installed engines or engines during there break in period.

PIE0350

Service Bulletin/Repair Instructions

This engineering informational bulletin is requesting information from dealers regarding the concern of a bang or loud noise with no forward or reverse ranges

05-08-51-001H

Service Bulletin/Repair Instructions

This informational bulletin provides information on removing paint stains on the under side of protective shipping film

03-08-46-004Q

Service Bulletin/Repair Instructions

This informational bulletin provides information regarding Part Restriction and Ordering Process Information for OnStar Vehicle Communication Interface Modules

PI1344B

Service Bulletin/Repair Instructions

Some customers may comment that the vehicle has reduced acceleration at low speed and/or transmission is slipping from a launch. Technicians may find DTC P0751 set or stored in history. This condition may be caused by the Clutch Select Solenoid Valve 2 (359), located in the lower valve body, sticking in its bore resulting in a 4th gear start. Note: This condition can be very intermittent and difficult to duplicate.

SB-08-24-15

Service Bulletin/Repair Instructions

GENERAL MOTORS: PARTS FOR MOST VEHICLES, CLUTCH, MASTER CYLINDER ASSEMBLY ARE, REQUIRED AND REQUESTED, TO BE RETURNED AND NEED TO REORDER REPLACEMENT PARTS USING SAME PART NUMBERS. *PE

15-00-89-005

Service Bulletin/Repair Instructions

This warranty administration bulletin provides dealership personnel with policy and procedure requirements for essential tools that include consumable parts (U.S. Only).

10-08-110-001D

Service Bulletin/Repair Instructions

This informational bulletin provides information on the proper use of GM floor mats.

00-06-01-026G

Service Bulletin/Repair Instructions

This informational bulletin provides information to technicians regarding intake manifold inspection/replacement after severe internal engine damage.

07-00-89-037H

Service Bulletin/Repair Instructions

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

PB-15155

Service Bulletin/Repair Instructions

CHEVROLET/GMC/CADILLAC: TSB HAS AN OWNER'S NOTIFICATION LETTER. SELECT DOCUMENT SEARCH BUTTON BELOW. WATER IS LEAKING ON TO ROOF MOUNTED ANTENNA AND IS PREVENTING ONSTAR SYSTEM TO DETERMINE LOCATION OF VEHICLE BY DISABLING COMPASS, XM RADIO SYSTEM, NAVIGATION. MODEL 2015 ESCALADE, ESCALADE ESV, SILVERADO CREW CAB, SUBURBAN, TAHOE, SIERRA CREW CAB, YUKON, YUKON XL. *PE

PI-1522

Service Bulletin/Repair Instructions

GMC/CHEVROLET: DUE TO INTERFERENCE WITH ENGINE ACCESSORY DRIVE BELT FROM TRANSMISSION CONTROL MODULE (TCM) WIRE HARNESS ROUTING, THE WIRE HARNESS WILL BE DAMAGED AND HAVE POOR TRANSMISSION PERFORMANCE AND QUALITY SHIFTING AND MALFUNCTION INDICATOR LAMP (MIL) ON. *PE

PIP-5088-C

Service Bulletin/Repair Instructions

GMC/CHEVROLET: TO ASSIST ENGINEERING PRODUCT FEEDBACK, PARTS FOR DURAMAX DIESEL ENGINE, HAS BEEN PLACED ON RESTRICTIONS, BY PRODUCT QUALITY CENTER (PQC). MODEL 2010-16 DURAMAX. *PE

PIP-5230-B

Service Bulletin/Repair Instructions

GMC/CHEVROLET/CADILLAC: INFORMATION PROVIDED ON SOME VEHICLES AND SUV, FOR REPLACEMENT OF CRANKSHAFT, FOR ENGINE REPAIR AND OIL TANK AND LINES WOULD BE REPLACED ON DRY SUMP ENGINES WHEN REPAIRING AND/OR REPLACING. MODEL 2014-16 CORVETTE, SILVERADO, SIERRA, 2016 CTS-V, 2015-16 ESCALADE, SUBURBAN, TAHOE, YUKON, YUKON XL. *PE

PIP-5272-A

Service Bulletin/Repair Instructions

CHEVROLET/GMC: ON TRUCKS/SUVS AFTER HAVING AN OIL AND FILTER CHANGE, THE PRESSURE FOR OIL IS LOW AND SES LIGHT HAD DIAGNOSTIC TROUBLE CODE (DTC) P0521 APPEAR. MODEL 2014-15 SILVERADO, SUBURBAN, TAHOE, SIERRA, YUKON, YUKON XL. *PE

PIT-5449

Service Bulletin/Repair Instructions

GMC/CHEVROLET: ON SOME TRUCKS, MESSAGE APPEARS IN DIC REGARDING SYMPTOM OF AN INTERMITTENT SERVICE TRAILER BRAKE AND DIAGNOSTIC TROUBLE CODES (DTC) ARE SET IN CHASSIS CONTROL MODULE. MODEL 2014 SILVERADO 1500, SIERRA 1500, 2015 SIERRA, SILVERADO. *PE

SB-00-06-01-026G

Service Bulletin/Repair Instructions

GENERAL MOTORS: IN SOME VEHICLES AND TRUCKS, WHEN TRANSFERRING INTAKE MANIFOLD TO REPLACE AN ENGINE LONG SERVICE BLOCK, DUE TO INTERNAL DAMAGE, EXTREME CAUTION MUST BE TAKEN FOR COMPONENT DEBRIS VIA BROKEN, BENT OR MISSING INTAKE VALVES. *PE

PIT5442

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician of an engine power reduced message on the driver information center after performing the Canada Onstar® 4G upgrade. If the concern is present park the vehicle outside and call General Motors Technical Assistance Center.

PB-15086

Service Bulletin/Repair Instructions

GENERAL MOTORS: TSB CONTAINS AN OWNER'S NOTIFICATION LETTER. SELECT DOCUMENT SEARCH BUTTON BELOW. ON CERTAIN TRUCKS AND VEHICLES, THE ONSTAR SYSTEM IS INOPERATIVE DUE TO EMBEDDED PHONE FLASH MEMORY CHIP AND VEHICLE COMMUNICATION INTERFACE MODULE (VCIM) NEEDS REPLACING. MODEL 2015. *PE

SBU-15396

Service Bulletin/Repair Instructions

CHEVROLET/GMC/CADILLAC: ON CERTAIN SUVS/TRUCKS, SERVICE PROCEDURE PROVIDED ON INSTALLING CORRECT TEMPERATURE SENSOR WIRING HARNESS FOR TRANSMISSION DUE TO PREVIOUS WIRING HARNESS WAS UNAPPROVED. MODEL 2015 SIERRA, YUKON, YUKON XL, ESCALADE, ESCALADE ESV, SILVERADO. *PE

07-06-04-019E

Service Bulletin/Repair Instructions

This technical bulletin provides repair information for repairing the IP to body harness connector to correct a customer concern for intermittent Malfunction Indicator Lamp (MIL) illuminated with Reduced Engine Power displayed and DTC P2138 set.

02-00-89-002O

Service Bulletin/Repair Instructions

This informational bulletin provides information for dealers/technicians on when and how to submit a Field Product Report (FPR) (U.S. Dealers Only).

99-00-89-019M

Service Bulletin/Repair Instructions

This informational bulletin provides dealership personnel with Global Warranty Management (GWM), Warranty Parts Center (WPC), and Parts Return Program information.

15-08-44-001C

Service Bulletin/Repair Instructions

This informational bulletin provides information on a GM of Canada OnStar® cellular communication upgrade.

PI-1360

Service Bulletin/Repair Instructions

GMC/CADILLAC/CHEVROLET: AFTER POSITIONING SHIFT LEVER INTO PARK, IT FAILS TO HOLD AND VEHICLE ROLLS WHEN BRAKE PEDAL IS RELEASED. MODEL 2013-15. ATS, CTS, ESCALADE, AVALANCHE, CAMARO, CORVETTE, EXPRESS, SILVERADO, SUBURBAN, TAHOE, SAVANA, SIERRA, YUKON. *PE UPDATED 2/5/16. *PE UPDATED 2/12/16. *PE

PIT5374A

Service Bulletin/Repair Instructions

GENERAL MOTORS 2014-2015 GMC SIERRA, GMC SIERRA 1500: SOME VEHICLES ARE EXPERIENCING POOR HEADLIGHT PERFORMANCE WHEN DRIVING IN RURAL DARK AREAS. *LJ UPDATED 1/22/16. *PE

15-00-89-004A

Service Bulletin/Repair Instructions

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

00-06-01-026F

Service Bulletin/Repair Instructions

This informational bulletin provides information to technicians regarding intake manifold inspection/replacement after severe internal engine damage.

15-08-44-001B

Service Bulletin/Repair Instructions

This informational bulletin provides information on a GM of Canada OnStar® cellular communication upgrade.

PB-15216

Service Bulletin/Repair Instructions

CHEVROLET/CADILLAC/GMC: TSB CONTAINS AN OWNER'S NOTIFICATION LETTER. SELECT DOCUMENT SEARCH BUTTON BELOW. THE U JOINT RETAINER BOLTS, ON CERTAIN TRUCKS/VANS, HAVE A LOSE INDEX AND CLUNKING NOISE IS HEARD OR FELT WHEN SPEED CHANGES AND IF NOT CORRECTED, PROPSHAFT WILL MOVE TOWARDS AXLE YOKE. MODEL 2015 ESCALADE, ESCALADE ESV, SIERRA LD CREW & DOUBLE CAB, YUKON, YUKON XL, SILVERADO LD CREW & DOUBLE CAB. *PE

PIT-5412

Service Bulletin/Repair Instructions

GMC/CHEVROLET: THE HEADLIGHTS ON SOME SNOW PLOW EQUIPMENT BECOMES INOPERATIVE AFTER SWITCHING FROM FACTORY TO SNOW PLOW USAGE. MODEL 2014 SILVERADO 1500, 2014 SILVERADO, 2014 SIERRA 1500, 2015 SIERRA. *PE

PIC4310L

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicle that may have an OnStar system that has progression tones when pressing the blue or red button. Technician will need to call General Motors Technical Assistance Center with the scan tool data from the OnStar system.

CSP-14281

Service Bulletin/Repair Instructions

GMC/CHEVROLET: TSB CONTAINS A NOTIFICATION OF AN OWNER'S LETTER. SELECT DOCUMENT SEARCH BUTTON BELOW. IN SOME TRUCKS, THE REAR SEAT ENTERTAINMENT SYSTEM WAS INSTALLED WITHOUT VALIDATION APPROVAL AND WOULD NEED TO HAVE HINGED SCREEN STYLE REAR SYSTEM REPLACED AND REMOVED WITH REVISED INTEGRAL SCREEN. MODEL 2014-15 SILVERADO, SUBURBAN, TAHOE, SIERRA, YUKON. *PE

PB-14395

Service Bulletin/Repair Instructions

BUICK/CADILLAC/ GMC/ CHEVROLET: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. BATTERY IS DEAD DUE TO ONSTAR MODULE AND IF VEHICLE FAILS TO START AFTER 4 DAYS AND OCCURS EVEN IF ONSTAR SYSTEM IS NOT ACTIVE. *PE UPDATED 11/6/15. *PE

SBU-15217

Service Bulletin/Repair Instructions

GMC/CHEVROLET: PROCEDURE INFORMATION REGARDING INSPECTION OF TRANSMISSION CONTROL MODULE (TCM) ENGINE WIRING HARNESS FOR CERTAIN TRUCKS AND IF MISROUTED AND NOT SECURED WILL PROPERLY REROUTE AND USE AUXILIARY POSITIVE BATTERY CABLE FIR TREE CLIP. MODEL 2015 SILVERADO, SIERRA. *PE

05-08-46-009D

Service Bulletin/Repair Instructions

This informational bulletin adds the 2014 and 2015 model years to information of a language change for OnStar System (U.S. and Canada only).

12-07-30-001E

Service Bulletin/Repair Instructions

This informational bulletin provides information on the Product Quality Center (PQC) assembly replacement process for Service Agents not required to contact PQC prior to assembly replacement.

13-08-116-001B

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.

13-00-89-008A

Service Bulletin/Repair Instructions

This informational bulletin communicates GM wiring repair strategy information.

PI1440

Service Bulletin/Repair Instructions

This preliminary informational bulletin provides technicians with diagnostic tips for a customer concern of odor emanating from HVAC system.

04-00-89-015J

Service Bulletin/Repair Instructions

This warranty administration bulletin communicates GM required operating procedures (U.S. only) for service operations.

09-00-89-016D

Service Bulletin/Repair Instructions

This warranty administration bulletin provides retail and wholesale service personnel with the policies and the warranty claims submission procedures that support Labor Operation 0600014 - Suspected Tampering or Vehicle Modifications.

12-06-01-008B

Service Bulletin/Repair Instructions

This informational bulletin provides dealership personnel information on unscheduled supplemental services (including flushing services and additives) and proper use of GM simplified maintenance schedules (Canada only).

15-00-90-001

Service Bulletin/Repair Instructions

This informational bulletin provides technicians with diagnostic tips for preventing oil leaks after changing oil and filter.

02-07-30-029X

Service Bulletin/Repair Instructions

This informational bulletin provides information on the PQC assembly replacement process - for dealers required to contact PQC prior to replacing an assembly (U.S. and Canada only).

15-08-44-001

Service Bulletin/Repair Instructions

This informational bulletin provides information on a GM of Canada OnStar® cellular communication upgrade.

14725A

Service Bulletin/Repair Instructions

GENERAL MOTORS 2014-2015, CHEVROLET SILVERADO, GMC SIERRA : SERVICE UPDATE FOR INVENTORY AND CUSTOMER PARK BRAKE BRACKET VEHICLES BODY HARNESS CONTACT EXPIRES WITH BASE WARRANTY . *LJ

14815

Service Bulletin/Repair Instructions

THIS TSB CONTAINS AN OWNER NOTIFICATION LETTER. SELECT DOCUMENT SEARCH BUTTON BELOW. GENERAL MOTORS 2015 SILVERADO GMC SIERRA EQUIPPED WITH RPO C49 ELECTRIC REAR WINDOW DEFOGGER. DUE TO SURFACE FLAW, HEATED BACK WINDOW GLASS IS STRUCTURALLY WEAKENED. *LJ

14815A

Service Bulletin/Repair Instructions

THIS TSB CONTAINS AN OWNER NOTIFICATION LETTER. SELECT DOCUMENT SEARCH BUTTON BELOW. GENERAL MOTORS 2015 CHEVROLET SILVERADO, SIERRA ; CERTAIN LIGHT DUTY 2015 VEHICLES BUILT WITH RPO C49 FIXED-WINDOW HEATED GLASS MAY HAVE A STRUCTURALLY WEAKENED GLASS DUE TO INTERNAL FLAW. *LJ

14815B

Service Bulletin/Repair Instructions

THIS TSB CONTAINS AN OWNER NOTIFICATION LETTER. SELECT DOCUMENT SEARCH BUTTON BELOW. GENERAL MOTORS 2015 CHEVROLET SILVERADO, SIERRA EQUIPPED WITH RPO C49 ELECTRIC REAR WINDOW DEFOGGER. THIS IS A REVISED COPY OF BULLETIN 14815A. *LJ

PIT5374

Service Bulletin/Repair Instructions

GENERAL MOTORS 2014-2015 GMC SIERRA, GMC SIERRA 1500: INFORMATION REGARDING POOR HEADLIGHT PERFORMANCE WHEN DRIVING IN VERY DARK RURAL AREAS. *LJ

04-06-04-051D

Service Bulletin/Repair Instructions

This informational bulletin provides information for maintenance cleaning of the fuel injectors.

PI1374B

Service Bulletin/Repair Instructions

This preliminary informational bulletin provides radio programming information to correct customer concerns about no XM audio or time shift, radio lock-up, slow response, vertical line between clock and temperature, poor FM reception (truck only).

09-03-09-001C

Service Bulletin/Repair Instructions

This technical bulletin provides repair information for the re-torque of leaf spring bolts to correct a customer concern for a clunking noise coming from the rear of the vehicle.

PIT5264C

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that are travelling from Canada to the United States. While in the United States they are unable to receive Turn-by-Turn directions. Due to the existing cellular provider not having roaming agreements in areas outside of Canada to support transmitting of the packet data required for Turn-By-Turn feature to operate. The customer has 3 options while traveling through the United Sates. First if the vehicle is equipped with a navigation radio they can request a "Destination Download" to the vehicle. Second if the customer uses the OnStar RemoteLink app they can send the directions to the vehicle. The third option would be to have the vehicle loaded with a "500 phone number" The customer will no longer be able to use their Hands Free Calling minutes when the new 500 phone number is loaded. If a customer chooses to restore Hands Free Calling in the future a new phone number will be assigned to the vehicle; previous phone numbers are not available.

09-03-09-001B

Service Bulletin/Repair Instructions

This technical bulletin provides repair information for the re-torque of leaf spring bolts to correct a customer concern for a clunking noise coming from the rear of the vehicle.

PI1360A

Service Bulletin/Repair Instructions

This preliminary informational bulletin provides diagnosis and repair information to correct a customer concern of alleged no park or vehicle rolls in park or park will not hold.

PI1375B

Service Bulletin/Repair Instructions

This preliminary informational bulletin provides repair information to correct customer concerns about blank display, NAV screen audio content is unavailable via speech recognition, display screen is stuck on incoming call view after phone call finished, rear view camera display blank, USB issues, Bluetooth/Favorite Bar/Voice, iPod unable to detect via USB, recognition concerns, XM speech recognition inoperative, traffic messages, clock display.

05-00-89-055E

Service Bulletin/Repair Instructions

This warranty administration bulletin provides information to clarify proper transaction administration of GM Dealer Empowerment Program and Goodwill Cases.

PI1018A

Service Bulletin/Repair Instructions

This preliminary informational bulletin adds the 2015 model year to repair information on correcting a customer concern of poor, limited, reduced Remote Keyless Entry (RKE) or Remote Vehicle Start (RVS) range.

PI1354B

Service Bulletin/Repair Instructions

This preliminary informational bulletin outlines the recommendations and procedures for diagnosing and repairing vibrations caused by wheel and tire, axle components and/or propeller shafts.

PI1374A

Service Bulletin/Repair Instructions

PI1405

Service Bulletin/Repair Instructions

This preliminary informational bulletin provides diagnostic tips for a customer concern of illuminated MIL or technicians finding DTC P2818: Transmission Control Solenoid Valve'8 Stuck On.

RB-14858

Service Bulletin/Repair Instructions

CADILLAC/GMC/CHEVROLET: TSB CONTAINS OWNER NOTIFICATION LETTER. SELECT DOCUMENT SEARCH BUTTON BELOW. THERE IS FUEL ODOR AND INCREASED EVAPORATIVE EMISSIONS DUE TO HIGH PRESSURE FUEL PUMP LEAKING AND ENGINE FAILS TO START OR WHEN DRIVEN HAS LESS POWER DUE TO INSUFFICIENT FUEL PRESSURE. MODEL 2014-14 SILVERADO LD, SIERRA LD, 2015 ESCALADE, ESV, SUBURBAN, TAHOE, YUKON, YUKON XL, CORVETTE. *PE

SU-14725

Service Bulletin/Repair Instructions

GMC/CHEVROLET: PROCEDURE IN TIE STRAP MAIN AND BCM OF BODY HARNESS TO PREVENT THEM COMING IN CONTACT WITH PARK BRAKE BRACKET WHERE EXPOSED BODY HARNESS WIRES IN CLOSE PROXIMITY TO PARKING BRAKE BRACKET CAN RUB OR PINCH BRAKE BRACKET. MODEL 2014-15 SIERRA, SILVERADO. *PE

SU-15004

Service Bulletin/Repair Instructions

CHEVROLET/GMC: ON SOME VEHICLES, ACCESSORY DRIVE IDLER PULLEY WILL BE REPLACED DUE TO NOISE IN BEARING AND PULLEY MAY FAIL AND ALTERNATOR AND WATER PUMP STOP WORKING. *PE

PIT5367

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that may have a blank displays, flashing displays, "Error or Update failed Messages", navigation map not loading, Bluetooth or USB concerns. Technician should inspect the USB/SD card port for a SD card or a device plug into any of the USB ports.

PIT3271G

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.

PIC3278F

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician the steps needed to diagnose and repair the vehicles that may have unwanted or phantom phone calls. Technician will need to determine what type of call the customer is having that is unwanted. The vehicle may receive an incoming call just like any other phone. Typically the customer will hear the phone ringing in the vehicle. This scenario also includes incoming Bluetooth calls. One type of unwanted call can be made if the key pad is faulty the OnStar system will try to make a blue button call for shorted voltage in the circuits. The OnStar module could have an internal fault and produce a "Phone Unavailable" audio message also it may have a Diagnostic Trouble Code U1500 or B1000. Refer to diagnostics for the Diagnostic Trouble Code making sure to follow any applicable Bulletins or Preliminary Information sheets. A "Ready" or "OnStar ready" audio message heard while driving. In some cases it has been found that the customer is inadvertently pressing the ?push to talk? button on the steering wheel controls. On rare occasions, other issues in the steering column or Steering Wheel Control system may induce this concern.

PIC4310K

Service Bulletin/Repair Instructions

PIP5211B

Service Bulletin/Repair Instructions

CHEVROLET: VEHICLE EXPERIENCE ROUGH IDLE AND VIBRATION AT IDLE IN GEAR. WHICH MAY ALSO BE DESCRIBED AS LOW IDLE. *LJ

14154

Service Bulletin/Repair Instructions

CHEVROLET 2015 CHEVROLET SILVERADO 2500 HD, 2015 GMC SIERRA 2500 HD, EQUIPPED WITH 220 AMP GENERATOR RPO KW5: INFORMATION REGARDING 220 AMP GENERATOR FUSE BLOCK CORROSION. *LJ

14284

Service Bulletin/Repair Instructions

GENERAL MOTORS: CHEVROLET SILVERADO 2014-2015, GMC SIERRA 2014-2015: SEE DOCUMENT SEARCH BUTTON FOR OWNERS LETTER. SOME MODEL YEARS EQUIPPED WITH THE AUXILIARY SWITCH BANK HAVE AN ELECTRICAL ISSUE WITH IGNITION FEED FROM BATTERY FEED POSITION. *LJ

SB-14-00-89-005

Service Bulletin/Repair Instructions

CHEVROLET/GMC: IN FULL UP POSITION OF TILT STEERING COLUMN AND SHIFT LEVER MOVES BETWEEN GEARS AND COMES IN CONTACT WITH IGNITION KEY HEAD CAUSING ROTATION OF KEY AND ENGINE TO SHUT OFF. MODEL 2014-15 SILVERADO 1500, SIERRA 1500, SILVERADO, SUBURBAN, TAHOE, YUKON, SIERRA, YUKON XL. *PE

14-00-89-003A

Service Bulletin/Repair Instructions

This information for Warranty administration - Changes the Service Policy and Procedures Section 1.6.2.11 and now is refered to Article 3.2.9 of the 1st addition manual for details of Technician Identification and Accounting of Labor Time

14-00-89-004

Service Bulletin/Repair Instructions

This informational bulletin explains not to put multiple keys on one key ring and how to tag a key.

06-08-43-003E

Service Bulletin/Repair Instructions

This informational bulletin explains how to care for wiper blades.

07-08-49-020I

Service Bulletin/Repair Instructions

This informational bulletin provides a quick guide to updating which model vehicle after replacing the IPC.

04-00-89-015H

Service Bulletin/Repair Instructions

This warranty administration bulletin provide policy information of the JOB CARD, for a repair on vehicles and what is acceptable - customer authorization; Service manager approvals and transaction authorization; Details of concern, cause and correction; Labor Time; Technician ID and acoutablity of labor time; Proper documentation and retension of warranty parts; Accurate sublet charges and receipts; Add on concerns after the Job Card has been written.

PI1098A

Service Bulletin/Repair Instructions

This preliminary bulletin provides a procedure on how to cold crank test a battery in a vehicle.

08-08-44-015E

Service Bulletin/Repair Instructions

This informational bulletin provides information on Inappropriate Warranty Claims Submitted for Damaged Radios and IPCs

PI-0319

Service Bulletin/Repair Instructions

CHEVROLET/GMC: FROM UNDER THE VEHICLE, THE TRANSMISSION IS LEAKING FLUID FROM THE FRONT AREA. MODEL 2014-15 SILVERADO 2500/3500, SIERRA 2500/3500. *PE

PIP5204C

Service Bulletin/Repair Instructions

This Preliminary Information communication advises the technician that the Diesel Oxidation Converter part numbers 15231895, 22768282, 22770967, 22887212, 22893734 and 22977171 will be placed on a parts restriction through the General Motors Product Quality Center. Dealer will need to contact General Motors Product Quality Center for further assistance.

PIT5326

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about the Upfitters questions about installing aftermarket electrical accessories. Dealer should reference the latest version of General Motors Upfitter Integration Bulletin 115 for this information. It can be found at http://www.gmupfitter.com.

PIT5327

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that continue to running after the engine is shut off. Technician should check for fuses installed into F26UA and F31UA. If fuses are found in any of the two locations the fuses must be removed.

PIP5227

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that may have Service Engine Soon Malfunction Indicator Lamp on. Technician will find Diagnostic Trouble Codes P0171 and P0174. Technician will need to check the ethanol content of the fuel with the J44175. If the fuel tested over 10% alcohol, determine if the vehicle is equipped with Regular Production Option Code (FHS), If not flush the fuel system and add E10 gas.

PIP5223A

Service Bulletin/Repair Instructions

This Preliminary Information communication advises the technician that the Engine Control Module part number 12662034 was placed on restriction through the General Motors Product Quality Center. Dealer will need to contact General Motors Product Quality Center for further assistance.

PIP5224

Service Bulletin/Repair Instructions

This Preliminary Information communication advises the technician that the Allison LCT1000 valve body part number 24262535 is on restriction through the General Motors Product Quality Center. Dealer will need to contact General Motors Product Quality Center for further assistance.

PIP5223

Service Bulletin/Repair Instructions

This Preliminary Information communication advises the technician that the Engine Control Module part number 12662034 is on restriction through the General Motors Product Quality Center. Dealer will need to contact General Motors Product Quality Center for further assistance.

PIT5313A

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that have paint peeling from the anti-chip area. Technician should test another panel on a clean surface above room temperature. Technician will use a 2 inch wide piece of masking tape to the body, and pull upward quickly. If the paint flakes or peels away, the panel in question should be repaired.

PIT5306A

Service Bulletin/Repair Instructions

This Preliminary Information communication advises the technician that the Instrument Panel Cluster for vehicles will be placed on restriction through the General Motors Technical Assistance Center. Dealer will need to contact the General Motors Technical Assistance Center for further assistance.

PIP5211A

Service Bulletin/Repair Instructions

This Preliminary Information communication advises the technician that the engine part number 19317708 and 19316786 restriction through General Motors Product Quality Center has ended. Dealer can now order parts through the normal Customer Care and Aftersales parts process.

PIP5085C

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that have a Malfunction Indicator Lamp on. Technician may find a P0420, P24A0 and/or P2463 set. Technician should use published Service Information diagnostics for the Diagnostic Trouble Code. If the diagnostic leads to diagnosis or replacement of the Q57 Indirect Exhaust After treatment Fuel Injector, document all of your test results.

PIP5109F

Service Bulletin/Repair Instructions

This Preliminary Information communication advises the technician that the Engine Control Module part number 12656993 and 12662034 placed on restriction through the General Motors Product Quality Center. Dealer will need to contact General Motors Product Quality Center for further assistance.

PIT5320

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that the navigation voice feedback is choppy, distorted, or garbled. Technician will need to press Settings, Voice, Audio Feedback Speed, and verify speed is set to Medium.

PIT4911Y

Service Bulletin/Repair Instructions

This Preliminary Information communication advises the technician that the Human Machine Interface, Radio or Tuner, radio controls, Integrated Center Stack, display, and Media Disc Players are placed on restriction through the General Motors Technical Assistance Center. Dealer will need to contact General Motors Technical Assistance Center for further assistance.

PIC5891C

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that the voice recognition is inoperative. Technician will need to toggle through all languages then back to the desired language.

SB-080604003-C

Service Bulletin/Repair Instructions

GMC/CHEVROLET: ENGINES, WITH EGR SYSTEM, HAS LEAKAGE FROM EGR COOLER ENGINE COOLANT INTO THE COMBUSTION CHAMBER. MODEL 2002-15 SILVERADO, SIERRA, 2004-09 KODIAK C4500-C5500, TOPKICK C4500-C5500, 2006-15 EXPRESS, SAVANA. *PE

PIC6024

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that will not connect to OnStar. Technician may find Diagnostic Trouble Code B2470-04 set in the Vehicle Communication Interface Module also a red LED on the OnStar keypad will be on. Technician will need to follow published diagnostics for the Diagnostic Trouble Code. If the diagnostics lead to replacement of the Vehicle Communication Interface Module read the OnStar Customer Identifier using Global Diagnostic System 2. If the value falls in range the technician will need to remove power from the module for 5 minutes. After the power cycle was performed, check for the Diagnostic Trouble Code to be set current or history. If the Diagnostic Trouble Code is current replace the module. If the Diagnostic Trouble Code is history no further action is required.

PIT5316

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that the enter caps on chrome or polished aluminum wheels are missing or came off while driving. Technician will need to install the center caps by pressing the chrome center cap onto the wheel until an audible "click" is heard.

PIC5891B

Service Bulletin/Repair Instructions

PIP5182A

Service Bulletin/Repair Instructions

This Preliminary Information communication advises the technician that the 6.6L Diesel Engine Control Module Part number 12658036 are on restriction through General Motors Product Quality Center. Dealer will need to contact General Motors Product Quality Center for further assistance.

PIP5217A

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that may have a service 4 wheel drive message and the transfer case is stuck in neutral. Technician may find Diagnostic Trouble Code C0398 set in the Transfer Case Control Module. Technician should verify if the vehicle was dinghy towed the vehicle using the owner's manual procedure. If the vehicle has a C0398 after this type of procedure clear the Diagnostic Trouble Code and return the vehicle to the customer with a copy of this Preliminary Information. An owner's manual supplement will be sent to owner's with more information on dinghy towing the vehicle. If the vehicle stays in neutral after towing, with the ignition in the RUN position and engine not running cycle fuse TREC under the hood then continue to use the "Shifting out of neutral" in the owner's manual.

PIP5130E

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician how to diagnose and repair a vehicle with an engine that runs with an intermittent crank no start with a Diagnostic Trouble Code P0011 or P00C6 current or history. The Camshaft Position Actuator Solenoid Valve may be sticking or binding causing the valve timing to be retarded. Dealer will need to cycle the Camshaft Position Actuator Solenoid Valve by energizing it using Global Diagnostic System 2.

PIT5314

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that have installed an aftermarket bed cap or topper may question where they can wire in the center high mounted stop light for the cap or topper. Provisions for the center high mounted stop light have been provided at the Rear Body Junction Block (X63A) connector X6 terminal 1.

PIP5085B

Service Bulletin/Repair Instructions

PIP5217

Service Bulletin/Repair Instructions

PIP4864N

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that may have "Exhaust Fluid Low", "Exhaust Fluid Empty - Refill Now", "Exhaust Fluid Range: XXX" or "Service Exhaust Fluid - See Owners Now" on the Driver Information Center. If the technician is working on 2010 and 2011 model years campaign 11001 has now been released. Other vehicles technician will need to check the Body Control Module and the scan tool to insure the latest calibration are installed in both. Then use the scan tool to check Reductant System Data in the Engine Control Module. Ensure that all three diesel exhaust fluid level sensors are active with the diesel exhaust fluid tank level showing 100%. If the tank level is below 100% add up to 2 gallons of diesel exhaust fluid. After adding the fluid, use a scan tool to reset the reductant fluid tank level. When the reductant level warning shows "none" the diesel exhaust fluid system reset and reprogram is complete.

PIP4912C

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician on vehicles that may have an intermittent high idle. If a technician has duplicated, or the customer description aligns with the speeds mentioned in the idle speed description tables, the idle speed should be considered a normal characteristic of current vehicle design.

PIP4932C

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles with Service Engine Soon Malfunction Indicator Lamp. Technician may find Diagnostic Trouble Code P0101. Technician should follow published Service Information diagnostics for any Diagnostic Trouble Codes that are set. If during diagnosis the tech has found that the Airflow Leak Equivalency Ratio or Induction System Leak Indication is above or below the specification the tech will have to carefully check for leaks in the air intake.

PIP5021D

Service Bulletin/Repair Instructions

This Preliminary Information communication advises the technician that the Allison 6 Speed Automatic Transmission Assembly (RPO MW7) has been placed on restriction through General Motors Product Quality Center. Dealer will need to contact General Motors Product Quality Center for further assistance.

PIP5007D

Service Bulletin/Repair Instructions

This Preliminary Information communication advises the technician that vehicles with engine Regular Production Option Code LGH or LML may have an Exhaust Fluid Quality Poor message displayed on the Driver Information Center. Technician will need to complete the current Service Information diagnostic for any current Diagnostic Trouble Codes or symptoms found. If an Exhaust Fluid Quality Poor message is displayed with a specific Diagnostic Trouble Code, use that specific Service Information diagnostic, and repair the vehicle as necessary. If the dealer has found an Exhaust Fluid Quality Poor message with no Diagnostic Trouble Code, diagnose the condition using the current Service Information diagnosis for Diagnostic Trouble Code P20EE / P207F (P2BAD for 2012 and newer model years). After making repairs use the Service Information Document titled "Reductant Fluid Quality Test (With or without Diagnostic Trouble Codess)" to evaluate and clear the Exhaust Fluid Quality Poor Driver Information Center message.

PIP5198A

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that may have Service messages in the Driver Information Center, Malfunction Indicator Lamp on, Erratic fluctuating engine oil pressure gauge, engine crank no start, and engine may run rough or misfire. Technician may find Diagnostic Trouble Codes. Technician should use published Service Information diagnostics for the Diagnostic Trouble Codes that are set. If the diagnosis does not lead to a resolution check for chafing of the engine wiring harness that is routed near the Exhaust Gas Recirculation Valve. Technician should repair any damaged wiring and fully seat the wire retaining harness. Also the technician should bend the Exhaust Gas Recirculation Valve gasket over to prevent a re-occurrence.

PIC5854C

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that may have a the AM or FM audio volume changes, mutes, echoes, cuts in and out, repeats broadcast content, or skips intermittently. Advise this is normal operation when listening to a weak AM or FM HD station. Technician can shut the HD option off to fix the concern.

PIT5311

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have an intermittent "Check Trailer Wiring" or "Service Trailer Brake" message on the Driver Information Center. Technician may find Diagnostic Trouble Code C1114. Technician will inspect and clean the ground wire (normally white wire) connection on the trailer side of the 7-pin connector. Inspect that the wires inside the trailer side connector are clean and securely fastened. If the vehicle's 7-way connector socket terminals are deformed or have excessive wear, it will be necessary to replace the truck side connector from General Motors Customer Care and Aftersales along with the trailer's 7-way connector plug.

PIT5308

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that have remote start is inoperative, power lift-gate Regular Production Option Code (TB5) is inoperative with the ignition off, and vehicles equipped with the diesel engine, the blower motor may stay on after the engine is turned off. Technician may find Diagnostic Trouble Code P2537 set. Technician will need to Use a voltmeter and check circuit 5985 at the Engine Control Module and Transmission Control Module. If no or low voltage is found, use the wiring diagram in Service Information and perform normal circuit diagnosis.

PI-5198

Service Bulletin/Repair Instructions

GMC/CHEVROLET: ON SOME TRUCKS, VARIOUS DIAGNOSTIC TROUBLE CODES (DTCS) ARE DISPLAYED AND INSTRUMENT PANEL CLUSTER (IPC) WARNING LAMPS AND/OR MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATING DIESEL EXHAUST FLUID (DEF) AND ENGINE MAY CRANK, NOT START AND RUNS ROUGH OR MISFIRE. MODEL 2015 SILVERADO, SIERRA. *PE UPDATED 11/12/14. *PE

PIT-5311

Service Bulletin/Repair Instructions

GMC/CHEVROLET: TRUCKS WITH INTEGRATED TRAILER BRAKE CONTROLLER (ITBC) MAY RECEIVED AN INTERMITTENT CHECK TRAILER WIRING, AND/OR SERVICE TRAILER BRAKE MESSAGE WITH DIAGNOSTIC TROUBLE CODE (DTC) C1114 AND HAVE ITBC CONNECTION CHECKED. MODEL 2014 SILVERADO 1500, SIERRA 1500, 2015 SILVERADO, SUBURBAN, TAHOE, SIERRA, YUKON MODELS. *PE

PIT4911X

Service Bulletin/Repair Instructions

PIT5306

Service Bulletin/Repair Instructions

PIT5202B

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that are equipped with 6L80 Regular Production Option Code (MYC), 6L90 Regular Production Option Code (MYD) or 8L90 Regular Production Option Code (M5U) Automatic Transmission. Starting with the 2013 model year, Full Size Trucks and Utilities now have Powertrain Grade Braking. Powertrain grade braking assists when driving on a downhill grade to help maintain desired vehicle speed by using the engine and transmission to slow the vehicle.

PIT5206C

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician with the steps on diagnosing and repairing vehicles that may have unwanted grade braking, reduced engine power with no Driver Information Center messages ? Brake Pedal Override Feature ?, transmission busy or frequent shifting up or down, and Diagnostic Trouble Codes P057B, P057C, and/or P057D may or may not be set. Technician will use this preliminary information to find the brake pedal position data parameters in the scan tool, and also to provide some additional diagnostic help. These issues may be caused by an incorrect brake pedal position sensor input to the engine control module. Technician will verify with the scan tool if the engine control module has the correct parameters for the brake pedal position sensor. If an engine control module brake pedal position sensor relearn is performed, the truck may be temporarily repaired until the intermittent wiring issue between the engine control module and brake pedal position sensor occurs again. On 2014 and newer trucks inspect and repair any damage to X115 and X119. On the 2014 and previous trucks inspect and repair any damage to X205.

PIT5251A

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that may have an EZ Lift and Lower tailgate opens too quickly. If the tailgate opens within approximately 2-6 seconds, no repairs should be made.

PIP5213

Service Bulletin/Repair Instructions

This Preliminary Information communication advises the technician that the T87 TCM for the 8L90 8 speed and the LCT1000 6 Speed Allison (MW7) automatic transmission is on restriction through General Motors Product Quality Center. Dealer will need to contact General Motors Product Quality Center for further assistance.

PIP5212

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that have run hot and or has a tick noise. Technician should inspect the head gaskets to ensure are not installed backwards. Technician should replace the head gasket if they are found installed backwards.

PIT5288A

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that may have any of these concerns remote keyless entry, passive Entry and Start Inoperative, No Fob detect message on driver information center, service tire pressure system, no audio, touch screen Inoperative, Steering Wheel Controls Inoperative, Service Stabilitrak, rear power windows inoperative, rear wiper inoperative, and or a dead battery. Technician may find Diagnostic Trouble Codes B3101, B144C, C0710, C0544, U1548, U1549, U154A, U0151, U0126, U0415, U0077, U0028 and/or U0029. Technician should inspect the left instrument panel for the wire harness being pinched. Technician will need to repair the wire harness and reroute the wire harness.

UIB-117

Service Bulletin/Repair Instructions

GENERAL MOTORS: AN OPTIONAL ENGINE BLOCK HEATER PLUG IN FOR ONBOARD AC POWER AND WITH CONTINUOUS USAGE WILL RESULT IN SHORTING OF WIRES, OVER HEATING SYSTEM, ELECTRICAL FAILURE AND COMPARTMENT ENGINE FIRES. MODEL 2003-15 EXPRESS CUT AWAY VANS, SILVERADO CHASSIS CAB, SAVANA CUT AWAY VANS, SIERRA CHASSIS CAB. *PE

PIP5109E

Service Bulletin/Repair Instructions

This Preliminary Information communication advises the technician that the Engine Control Module part numbers 12656993 and 12662034 are on part restriction through the General Motors Product Quality Center. Dealer will need to contact General Motors Product Quality Center for further assistance.

PIP4942B

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that may have a fuel leak or fuel odor. Technician may find Diagnostic Trouble Codes. If Diagnostic Trouble Codes are found technician should use published Service Information diagnostics first. If fuel leaks are found at the high pressure pump to fuel rail line fitting connections, technician should inspect the high pressure line fittings for misaligned lines and/or low torque of the line nuts. If leaks are found at the high pressure line fittings, technician will need to replace both lines.

PIT5301

Service Bulletin/Repair Instructions

This Preliminary Information communication advises the technician that Diagnostic Trouble Code B127E in the Human Machine Interface with Regular Production Option Code U42 or UWG will be current when playing a DVD or Blu-Ray on the Integrated Center Stack display. When the disc is ejected the Diagnostic Trouble Code will be history. If the Diagnostic Trouble Code B127E remains current after ejecting the disc follow Service Information diagnostic procedure instructions for B127E with Regular Production Option Code U42 or UWG.

PIP-4942-B

Service Bulletin/Repair Instructions

GMC/CHEVROLET: AT BOTTOM OF FLYWHEEL HOUSING, A LEAK IS FOUND, CAUSING A FUEL ODOR, DUE TO HIGH PRESSURE PUMP TO HIGH PRESSURE LINE FITTING OR FUEL RAIL CONNECTION. 2010-2015 EXPRESS, SIERRA, SAVANA, SILVERADO. *PE

PIT5231A

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that may have a blank display. Technician may find a Diagnostic Trouble Code U150F set. Technician will need to inspect circuit 7527 for damage if the Diagnostic Trouble Code is current.

SB-0000192943-A

Service Bulletin/Repair Instructions

SUMMARY TO BE PROVIDED ON A FUTURE DATE.

SB-0000192854-A

Service Bulletin/Repair Instructions

SUMMARY TO BE PROVIDED ON A FUTURE DATE.

SB-0000192636-A

Service Bulletin/Repair Instructions

SUMMARY TO BE PROVIDED ON A FUTURE DATE.

SB-0000192502-A

Service Bulletin/Repair Instructions

SUMMARY TO BE PROVIDED ON A FUTURE DATE.

PIP5199

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles with a crankshaft balancer appears to be out of balance or wobbling while watching it with the engine running. Technician will need to check crankshaft balancer run out. If the balancer run out is greater than 0.25mm the crankshaft balancer will need to be replaced.

PIP3119M

Service Bulletin/Repair Instructions

PIT5206B

Service Bulletin/Repair Instructions

PIT5285

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that the radio display does not always return to the previous source screen when a Bluetooth call has ended. Dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle.

PIT5232A

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician the steps to diagnose and repair the concern of the display is showing 32° F (0° C) after a battery or reprogramming a module. The outside temperature will begin to update if driven above 20 mph for at least 5 minutes. If the vehicle speed drops below 20 mph, the timer will reset and the display will stop updating. Once the display starts to update it may take several more minutes of driving above 20 mph for the display to fully update. Also if the vehicle is shut off for more than 8 hours the display will update when the ignition is turned on.

PIT5283

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that have a touchscreen that is inaccurate or that the display does not seem to respond with the desired operation when pressed. Technician will need to perform a touch screen calibration and re-evaluate the concern.

PIT-5274

Service Bulletin/Repair Instructions

CHEVROLET/GMC: ON SOME TRUCKS, TROUBLE LOCATING THE TWO BLUNT CUT WIRES, FOR ROOF BEACON LIGHT, WHICH IS DIRECTLY ABOVE OVERHEAD CONSOLE AND TAPED TO HARNESS. MODEL 2014-2015 SILVERADO, SILVERADO 1500, SIERRA, SIERRA 1500. *PE

PIT5254

Service Bulletin/Repair Instructions

This Preliminary Information communication advises the technician that the Rear Safety Belt Child Comfort Guide Kits are available from Customer Care and Aftersales parts as part number 20944862.

PIT3227J

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that may have slack in one of the tailgate cables. Technician should not replace any parts for this concern. Please communicate to the customer this condition is a normal operating characteristic of their vehicle.

PIT5249

Service Bulletin/Repair Instructions

This Preliminary Information communication advises the technician that there is a new DOT 3 brake fluid for the 2014 Silverado and Sierra 1500. Technician can order the new DOT 3 brake fluid from their parts department.

PIP4670D

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.

PIP5021C

Service Bulletin/Repair Instructions

This Preliminary Information communication advises the technician that the Allison 6 Speed Automatic Transmission Assembly (RPO MW7) have been placed on restriction through General Motors Product Quality Center. Dealer will need to contact General Motors Product Quality Center for further assistance.

PIC5839B

Service Bulletin/Repair Instructions

This Preliminary Information communication provides information to the technician about vehicles that may have a clock that is slow to update while driving when the clock auto set feature enabled. Dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle.

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.