CBR 2362-3 202604
Service Bulletin/Repair Instructions
CBR - Mack Carrier Nut Adhesive Change.
Vehicle report
2018 MACK MRU
Service bulletins
230 bulletinsTechnical 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.
CBR 2573-1 202604
Service Bulletin/Repair Instructions
CBR - Mack Chassis - Through Shaft Bearing Retainer Breakage On Mack Carriers.
CBR 126 022026
Service Bulletin/Repair Instructions
CBR - The purpose of this solution is to give information on Engine Control Module (EMS) Software content.
CBR 820-9 202601
Service Bulletin/Repair Instructions
CBR - Mack Chassis - Engine Brake Only Works With The Brake Pedal, No Function During Cruise. US07 And Newer Emissions, Model Year 2008 And Newer.
CBR 2107-22 202601
Service Bulletin/Repair Instructions
CBR - Mack DEF Level (UQLS) Sensor Troubleshooting Guide - US17+OBD16 Emissions to US22+OBD2023 (DOES NOT APPLY TO AN(4) and PR(4)).
S4571 082025
Service Campaign
FI - Drag Link and Pitman Arm Replacement.
CBR 2488 072025
Service Bulletin/Repair Instructions
CBR - A significant GPS reporting issue is affecting fleet operations, with trucks maintaining back-office communication but failing to transmit GPS location data.
CBR 407 072025
Service Bulletin/Repair Instructions
CBR - To correct the MID136 SID 66 FMI 7 fault code the latest Bendix VCP file will need to downloaded.
CBR 2107-21 202505
Service Bulletin/Repair Instructions
Mack DEF Level (UQLS) Sensor Troubleshooting Guide - US17+OBD16 Emissions and Newer
CBR 901-5 202505
Service Bulletin/Repair Instructions
Remote Control Central Door Lock, Programming; Key Fob Cannot Be Programmed Or Does Not Work After Programming - Model Year 2018 And Newer
CBR 445- 11 202505
Service Bulletin/Repair Instructions
Vehicles Equipped With a Common Rail Fuel System - Aftermarket Secondary Fuel Filters, Important Information On Approved Filters - US17+OBD16 toUS21+OBD23
CBR-561 202503
Service Bulletin/Repair Instructions
If oil dilution is suspected refer to the applicable CBR solution below: ∙ CBR-659Mack Chassis - Oil Diluted With Fuel; Fuel In Oil, Diagnostic Information - All Emissions, All Model Years
CBR-2016 202412
Service Bulletin/Repair Instructions
Frame lean can be caused by several seemingly isolated possibilities. The two most common are suspension and frame assembly issues.
CBR-997 202411
Service Bulletin/Repair Instructions
Vehicles may present with oil leak coming from the clutch/flywheel housing and observation of burned clutch smell or clutch slipping. These symptoms can be mistaken as a crankshaft rear main seal leak, when the actual cause is the crankshaft adaptor O-ring.
CBR-570 202409
Service Bulletin/Repair Instructions
CBR: US17 GHG Common Rail Fuel System Component Electrical Faults - Model Year 2017 To 2024
CBR-407 202409
Service Bulletin/Repair Instructions
CBR: To correct the MID136 SID 66 FMI 7 fault code the latest Bendix VCP fi le will need to be downloaded.
CBR-523 202408
Service Bulletin/Repair Instructions
CBR: Overhead Wear Overview - Model Year2018 To Current (Common Rail Fuel System ONLY)
CBR-561 202408
Service Bulletin/Repair Instructions
CBR: 11L, 13L, And 16L Engine Oil Analysis Specifications - US10 And Newer Emissions
CBR-2391 202408
Service Bulletin/Repair Instructions
CBR: Diagnostic Trouble Code (DTC) U010187- Lost Communication With TECU
CBR-2350 202407
Service Bulletin/Repair Instructions
CBR: Telematics Gateway (TGW) Connect Ability Issues
CBR-2383 202406
Service Bulletin/Repair Instructions
CBR - Accelerator Pedal: Inspection Instructions
M0303 202405
Emissions
Emission Recall: Mack Trucks has determined that certain vehicles equipped with a model year (“MY”) 2017-2018 MP8 VGT engines may not meet California and Federal Regulations (CARB). This Recall is for updated software that will reduce the amount of time necessary for the system to operate in a cold engine warm-up strategy and provide health monitoring of the Selective Catalyst Reduction (SCR).
M0309 202405
Emissions
Emission Recall: Mack Trucks has identified that the Selective Catalyst Reduction (SCR) system in certain vehicles equipped with the MY 2017 or 2018 MP8 (13L VGT) engine are not meeting California and EPA emissions standards, or Mack cannot confirm its compliance. These vehicles have been flagged due to telematics data showing that the NOx conversion efficiency of the SCR system has dropped below 94% for eight weeks. Alternatively, these vehicles may have communication issues with telematics, such as not reporting or ceasing reporting for the same period.
CBR-2139 202405
Service Bulletin/Repair Instructions
CBR: Vehicles built with an 11 liter engine may experience a complaint of excessive fuel in the oil. It is possible that the source of the fuel is the rear fuel galley plug in the cylinder head. A new and improved fuel galley plug has been developed to resolve this issue.
CBR-1008 202404
Service Bulletin/Repair Instructions
CBR: Equipped With An Automated Manual Transmission Model D or F ( AMT-D, AMT-F, mDrive) Missing X1 Value In VDA And Default Settings Guidelines, ParameterP1AOB; Fault Code P1052-54, Error 40,Or Error 18 Encountered During Clutch Or Tran.
CBR-2013 202404
Service Bulletin/Repair Instructions
CBR: Turbo Compound (TC) Hot Side Noise, Diagnostic Information.
CBR-2350 202402
Service Bulletin/Repair Instructions
CBR -Telematics Gateway (TGW) Connect Ability Issues
CBR-2014 202402
Service Bulletin/Repair Instructions
CBR - Driveline Noise, Suspension Ride Height Too High, Suspension Will Not Exhaust - Chassis Built 2016w01 And Newer.
CBR-202 202402
Service Bulletin/Repair Instructions
CBR - Automated Manual Transmission ( AMT ) Flywheel Pilot Bearing Wear On Input Shaft.
CBR-2347 202402
Service Bulletin/Repair Instructions
CBR - Active "Set Park Brake" Message On Drivers Information Display (DID).
CBR-2333 202401
Service Bulletin/Repair Instructions
CBR: TGW Will Not Connect After SIM Card Replacement
EC0028M 202312
Service Bulletin/Repair Instructions
Emissions Campaign: Mack Trucks has determined that certain 2014 - 2018 commercial model year CXU, GU, LEU, LR, MRU Vehicles require a replacement Diesel Particulate Filter (DPF) along with updated software.
M-465-001 202311
Service Bulletin/Repair Instructions
TSB: Mack Trucks now offer an improved HD Inter-Axle Through Shaft for the CRD 125, 150, 180, and 200 family carriers. The new HD shaft went into production on January 23rd, 2023 for 2.54 - 3.50 axle ratios and April 1st, 2023 for 3.56 - 3.98 ratios. The new HD through shaft is an upgrade over the current standard shaft and can now be used as a replacement part instead of the standard shaft. The new HD shaft has a new design to increase strength, longevity and life over the standard shaft.
CBR-399 202310
Service Bulletin/Repair Instructions
CBR: Vehicle Overspeed Warning Comes Active At A Lower Speed Than Expected; Vehicle Overspeed Warning In Driver Information Display (DID) - Model Year 2018 And Newer With New Style Instrument Cluster
CBR-570 202309
Service Bulletin/Repair Instructions
CBR: Model Year 2017, 2018 - US17GHG Common Rail Fuel System Component Electrical Faults
M-258-014 202309
Service Bulletin/Repair Instructions
TSB: Aftertreatment Diesel Exhaust Fluid (DEF) Tank, Level Sensor, Replacement
S7567 202309
Service Bulletin/Repair Instructions
Service Campaign: Electronic Pressure Relief Valve (EPRV) Delete & Fuel Rail Pressure Sensor Update
M728-005A 202308
Service Bulletin/Repair Instructions
TSB: Barksdale Leveling Valve, Leak Test
CBR-2112 202307
Service Bulletin/Repair Instructions
CBR: Programming Failure - Chassis With Cummins Engine And An Allison Transmission
CBR-2303 202307
Service Bulletin/Repair Instructions
CBR: Mack DEF Dosing Valve Diagnostic Trouble Codes (DTC) P202D00, P208E00, P103B00 - US10+OBD13 And Newer Emissions
KC-331-Ver6
Service Bulletin/Repair Instructions
CBR: Model Year 2017 to Current - Fuel Filter Change ( Primary And Secondary ) For The EM - USA17 Emission Engines
KC-503-Ver3
Service Bulletin/Repair Instructions
CBR: Automated Manual Transmission ( AMT ) -Transmission Electronic Control Unit ( TECU ) MID130 PSID 29 FMI 7 /P10AE81 Fault Codes Being Generated
KC-2229-Ver2
Service Bulletin/Repair Instructions
CBR: Automated Manual Transmission (AMT) Transmission Kickdown Mode
KC-474-Ver5
Service Bulletin/Repair Instructions
CBR: Diagnostic Trouble Code (DTC) P215A-64, Fault Code SPN 84 FMI 19
M-170-002
Service Bulletin/Repair Instructions
TSB: New Vehicle Safety Certification Requirements for Vehicles, U.S. and Canada
M-170-003
Service Bulletin/Repair Instructions
TSB: Vibration Diagnostics
S7567
Service Bulletin/Repair Instructions
Electronic Pressure Releif Valve (EPRV) Delete & Fuel Rail Pressure Sensor
S7627
Service Bulletin/Repair Instructions
Mack MMD Alternator Pulley
KC-2248
Service Bulletin/Repair Instructions
Flywheel Housing Thread Repair
KC-2165
Service Bulletin/Repair Instructions
Mack DEF Pump Troubleshooting Guide - US10+OBD13 And Newer Emissions
M-265-002
Service Bulletin/Repair Instructions
TSB-Charge Air Cooler t-clamp install.
M-728-001
Service Bulletin/Repair Instructions
2008 Document reformatted to be published as a TSB in Impact. Air suspension ride height.
M-258-000
Service Bulletin/Repair Instructions
2008 Document reformatted to be published as a TSB in Impact. Water entering the DPF.
M-823-002
Service Bulletin/Repair Instructions
2008 Document reformatted to be published as a TSB in Impact. Grille bar, replacment.
M-222-001
Service Bulletin/Repair Instructions
2008 Document reformatted to be published as a TSB in Impact. Loose oil filter spud.
M-258-011
Service Bulletin/Repair Instructions
2008 Document reformatted to be published as a TSB in Impact. Differential pressure sensor hose.
M-260-001
Service Bulletin/Repair Instructions
2008 Document reformatted to be published as a TSB in Impact. Cooling system connections.
M-374-001
Service Bulletin/Repair Instructions
2008 Document reformated to be published as a TSB in Impact. Revised battery ti battery cable
M-390-001
Service Bulletin/Repair Instructions
2008 Document reformatted to be published as a TSB in Impact. Electrical equipment panel label.
M-563-001
Service Bulletin/Repair Instructions
2008 Document reformated to be published as a TSB in Impact. Field repair for the treadle valve.
M-721-004
Service Bulletin/Repair Instructions
2008 Document reformatted to be published as a TSB in Impact. Chassis lean.
M-801-001
Service Bulletin/Repair Instructions
2008 Document reformatted to be published as a TSB in Impact. Paint protection.
M-851-001
Service Bulletin/Repair Instructions
2008 Document reformatted to be published as a TSB in Impact. Crack in cab at engine tunnel.
M-255-016
Service Bulletin/Repair Instructions
2009 Document reformatted to be published as a TSB in Impact. Turbo Actuator Connector Repair.
M-451-002
Service Bulletin/Repair Instructions
2009 Document reformatted to be published as a TSB in Impact. Axle Carrier Pinion Angles
M-561-001
Service Bulletin/Repair Instructions
2009 Document reformated to be published as a TSB in Impact. Air Piping Diagrams.
KC-561
Service Bulletin/Repair Instructions
11L, 13L, And 16L Engine Oil Analysis Specifications - US10 And Newer Emissions
KC-750
Service Bulletin/Repair Instructions
US10 Emission Engines - Diagnostic Trouble Code ( DTC ) SPN 1231 FMI 9 Troubleshooting.
KC-751
Service Bulletin/Repair Instructions
Vehicles Equipped With An Automated Manual Transmission Model D or F ( AMT-D, AMT-F ) - Transmission Oil Leakage From Transmission Input Shaft Seal Or Output Shaft Seal - US10 And Newer Emissions, Common Model Years 2010 And Newer.
KC-745
Service Bulletin/Repair Instructions
Automated Manual Transmission ( AMT ) I-Shift / mDRIVE - Ribbon Harness Replacement - Speed Sensor Bolts, Possible Fault Codes P1058 - 21 Or MID 130 PID 161 FMI 1
KC-746
Service Bulletin/Repair Instructions
Mack Chassis - Automated Manual Transmission Model F (AMT-F, mDrive) - Possible Infrequent Hiccup/Stumble During Steady Engine/Vehicle Speed; Diagnostic Trouble Code P1074-92, P1074-94, P1074-96 Logging, Appears As Inactive - Common Model Years 2018
KC-2112
Service Bulletin/Repair Instructions
Programming Failure - Chassis With Cummins Engine And An Allison Transmission
KC-2143
Service Bulletin/Repair Instructions
(Back Office) - Cruise Control Inoperative After Updating Software VECU5 Without ESP Package (UESP).
KC-405
Service Bulletin/Repair Instructions
Warranty Automated Manual Transmission ( AMT, I-Shift, mDrive ) Control Housing Assembly; Guidelines For Filing A Claim For Chassis Return Visit With Transmission Issues After A Repair Requiring Control Housing Removal And Reinstallation - US07 And N.
KC-399
Service Bulletin/Repair Instructions
Vehicle Overspeed Warning Comes Active At A Lower Speed Than Expected; Vehicle Overspeed Warning In Driver Information Display (DID) - Model Year 2018 And Newer With New Style Instrument Cluster.
KC-733
Service Bulletin/Repair Instructions
Back Office Mack Chassis - Secondary Gauge Set Up - Model Year 2018 and Newer.
KC-735
Service Bulletin/Repair Instructions
Premium Tech Tool (PTT) - Message For Data Mismatch, Product Configuration Mismatch; Instruction To Run An Accessory Kit Displayed When Attempting To Run Diagnostics For Diagnostic Trouble Codes (DTC) Or Programming - US10+OBD13 And Newer Emissions,
KC-736
Service Bulletin/Repair Instructions
(Back Office Only) - Engine Brake Vibration When In High Setting - 13L Engine With Variable Geometry Turbo ( VGT ) - US17 And Newer Emissions (Common Rail Fuel System).
KC-2107
Service Bulletin/Repair Instructions
DEF Level (UQLS) Sensor Troubleshooting Guide - US17+OBD16 Emissions and Newer.
KC-2116
Service Bulletin/Repair Instructions
NOx Sensor Troubleshooting Guide - US10+OBD13 And Newer Emissions.
KC-2157
Service Bulletin/Repair Instructions
Aftertreatment Hydrocarbon Injector (AHI) Troubleshooting Guide - US10+OBD13 And Newer Emissions.
KC-2158
Service Bulletin/Repair Instructions
Selective Catalytic Reduction (SCR) Muffler Troubleshooting Guide - US10+OBD13 And Newer Emissions.
KC-731
Service Bulletin/Repair Instructions
Mack Chassis - Equipped With An Automated Manual Transmission Model D or F (mDrive, AMT-D, AMT-F) - Transmission Oil Leakage From Transmission Input Shaft Seal Or Output Shaft Seal - US10 And Newer Emissions, Common Model Years 2010 And Newer
KC-2131
Service Bulletin/Repair Instructions
USE FOR NEW VEHICLES (US21+OBD22 Emissions) - Intermittent Diagnostic Trouble Codes U02A3, U029D, U029E
KC-2171
Service Bulletin/Repair Instructions
Temperature Sensor Troubleshooting Guide - US10+OBD13 And Newer
KC-714
Service Bulletin/Repair Instructions
Mack Chassis - Diagnostic Trouble Codes ( DTC's ) - P020113, P020213, P020313, P020413, P020513, P020613, Cylinders 1 Through 6 Injector A Open Circuit
KC-698
Service Bulletin/Repair Instructions
Mack Chassis - Diesel Exhaust Fluid ( DEF ) System Cleaning/Flush After DEF Pump Failure Or System Contamination
KC-699
Service Bulletin/Repair Instructions
Mack Chassis - Bendix Vendor Configuration Program ( VCP ) Software Download Information
KC-700
Service Bulletin/Repair Instructions
Mack Chassis - Automated Manual Transmission Model F ( AMT-F, mDrive ) - Short Transmission Replacement; Calibration And/Or Shifting Problems Following Replacement Of A Short Transmission - US17+OBD2016 And Newer Emissions, Model Year 2018 And Newer
KC-686
Service Bulletin/Repair Instructions
(Back Office Only) Mack Chassis - Cruise Control Inoperative After Disabling The Electronic Stability Program (ESP)
KC-678
Service Bulletin/Repair Instructions
Diagnostic Trouble Codes ( DTC ) P2080, P2084, P242B Lighting The Malfunction Indicator Lamp ( MIL ) - US14+OBD16, US17+OBD16, And US17+OBD18 Emissions, Model Years 2017 To 2019
KC-663
Service Bulletin/Repair Instructions
Emcon (Spark Assist) Engine Aftertreatment System Troubleshooting Check Sheet - US07 Emissions
KC-644
Service Bulletin/Repair Instructions
Manual Compression Test Adapter For Engines With Stainless Steel Injector Sleeves (Conical Tip Injectors) - US07 And Newer Emissions, Model Year 2008 And Newer
KC-648
Service Bulletin/Repair Instructions
Mack - PTO Pump Speed Calculator
KC-651
Service Bulletin/Repair Instructions
Mack Dealer Support Communication - Selecting The Proper SR Area For Creating An eService
KC-652
Service Bulletin/Repair Instructions
Mack Low Oil Pressure Diagnostic Process For 11 Liter Engines
KC-659
Service Bulletin/Repair Instructions
Mack Chassis -Â Oil Diluted With Fuel; Fuel In Oil, Diagnostic Information - All Emissions Prior To US17+OBD16 (Common Rail Fuel System), Model Year 2017 And Older
KC-2169
Service Bulletin/Repair Instructions
Low Voltage Disconnect (LVD), Function Description
KC-2170
Service Bulletin/Repair Instructions
Electronically Controlled Suspension (ECS) Losing Air Pressure
KC-2172
Service Bulletin/Repair Instructions
No Start Condition After Over The Air Programing - VECU5 No Start "Safe State"
KC-2161
Service Bulletin/Repair Instructions
DEF Pump Cycling periodically Hours After Key Off
KC-633
Service Bulletin/Repair Instructions
Mack Chassis - Front Hub With Unit-Bearings ( Unitized Wheel Bearings ), Inspection Information And Guidelines - Commonly Model Year 2008 And Newer
KC-471
Service Bulletin/Repair Instructions
Mack Chassis - Air Restriction Light On In The Instrument Cluster - US07 Emissions And Newer
KC-626
Service Bulletin/Repair Instructions
Mack Chassis - Vehicles Equipped With An Automated Manual Transmission Model F ( AMT-F, mDrive ), Premium Tech Tool ( PTT ) Gearbox Calibration Failure; Gearbox Calibration Operation Stops And Fails At 33% When Run With Transmission Removed
KC-627
Service Bulletin/Repair Instructions
Premium Tech Tool ( PTT ) Training Materials And Support Tools
KC-587
Service Bulletin/Repair Instructions
Mack Chassis - SNM15-027 A/C Compressor Inspection Required For Warranty Repairs
M-392-004B
Service Bulletin/Repair Instructions
Radio, Replacement (revised from FSB 392-004)
KC-168
Service Bulletin/Repair Instructions
Mack Chassis - Diagnostic Trouble Code ( DTC ) P0420 Illuminating The Malfunction Indicator Lamp (MIL) - US17+OBD16 And US17+OBD18 (GHG17) Emissions (Common Rail Fuel System) - Commonly Model Years 2018 And 2019
KC-185
Service Bulletin/Repair Instructions
Mack Chassis - Diagnostic Trouble Code ( DTC ) P205B - US14+OBD15 Emissions, Common Model Year 2016
KC-247
Service Bulletin/Repair Instructions
Mack Chassis - Diagnostic Trouble Codes ( DTC's ) P24A0 And P249F Lighting The Malfunction Indicator Lamp ( MIL ) - US14+OBD15, US14+OBD16 (Common Model Years 2016 And 2017), US17+OBD16 And Newer ( Common Rail Fuel System, Model Year 2018)
KC-552
Service Bulletin/Repair Instructions
Aftertreatment Control Module ( ACM ) Diagnostic Trouble Codes ( DTC ) U0001-88 and U0010-88 Lighting The Malfunction Indicator Lamp ( MIL ); Possible Derate Warning â US10 And Newer Chassis
KC-570
Service Bulletin/Repair Instructions
Model Year 2017, 2018 - US17 GHG Common Rail Fuel System Component Electrical Faults
KC-478
Service Bulletin/Repair Instructions
Variable Geometry Turbocharger ( VGT ) Function Test ( 2551-08-03-02 ), OBD13 Model Year ( MY ) 2014 And Newer
KC-415
Service Bulletin/Repair Instructions
Diagnostic Trouble Code ( DTC ) P26E8 Intermittently Lighting The Malfunction Indicator Lamp ( MIL ); Possible Derate Warning - US10+OBD13 And Newer Emissions, Model Year 2014 And Newer
KC-417
Service Bulletin/Repair Instructions
Mack Chassis - Air System Schematics For Models - MRU, LEU And ( LR ) Using The Same Schematic As the LEU
KC-383
Service Bulletin/Repair Instructions
Mack Chassis - Equipped With Bendix Fusion, With Or Without Lane Departure Warning ( LDWS ) - Diagnostic Trouble Code ( DTC ) SPN 70 FMI 9, Bendix Code 64 With Possible "Lane Departure Warning Malfunction" Message - US17 And Newer
KC-391
Service Bulletin/Repair Instructions
Noise On The AM Radio Band; Thumping, Ticking, Fluttering Sound On AM Radio Band - Model Year 2018 And Newer
KC-398
Service Bulletin/Repair Instructions
Chassis Equipped With An AMT-F (I-Shift, mDrive) - Idle Drive Function Activates When Vehicle Is Reversing/Backing Up At Low Speed; Information And Repair - Build Date Beginning Of Production 2017 To February 2018
KC-401
Service Bulletin/Repair Instructions
Diagnostic Trouble Codes (DTC) P24F600 Or P24F700 - US14+OBD15 Emissions And Newer, Model Year 2016 And Newer
KC-402
Service Bulletin/Repair Instructions
Volvo Chassis - Diagnostic Trouble Code (DTC) SA 0 FMI 0 or SPN 0 FMI 0 Present On Fault Code Readout - US10 And Newer Emissions, Model Year 2011 And Newer
KC-406
Service Bulletin/Repair Instructions
Dye Test Procedure; Fuel System Leak Check - Common Rail Fuel System - US17+OBD16 And Newer Emissions, Common Model Year 2018 And Newer
KC-354
Service Bulletin/Repair Instructions
Volvo Chassis - Certain Volvo Trucks Built After January 11, 2016 May Experience an Issue with the Instrument Cluster Display
KC-361
Service Bulletin/Repair Instructions
Mack Chassis - Drive Axle Brake Chamber Rubbing Frame Or Brake Drum - Vehicles Built Between 7 July 2014 And 23 August 2019
KC-331
Service Bulletin/Repair Instructions
Model Year 2017, 2018 - Fuel Filter Change ( Primary And Secondary ) For The EM - USA17 Emission Engines
KC-323
Service Bulletin/Repair Instructions
Mack Chassis - Model MRU - Inner and Outer Door Panel Repair Procedure; Outer Door Surface Separating From The Inner Door Surface
KC-311
Service Bulletin/Repair Instructions
Diagnostic Trouble Code (DTC, Fault Code) MID 140 PSID 210 FMI 12, Faulty Unit or Component Present On DTC Readout; Vehicle Operation Not Affected: No Physical Symptoms Or Warning Lights In Instrument Cluster - Model Year 2018
KC-314
Service Bulletin/Repair Instructions
On-Highway Vehicles With 2018 Interior Update - Enabling Traffic Sign Recognition (TSR) For Bendix 1.0
KC-281
Service Bulletin/Repair Instructions
Diagnostic Trouble Codes (DTC) P0069-64, P10EC-00, P0191-64 and P240F-00 In Different Combinations, Occurrences, And Time Stamps (Two To Four Codes), Possible Vehicle Derate - US17+OBD16, US17+OBD18 Emissions, Common Model Years 2018 And 2019
KC-282
Service Bulletin/Repair Instructions
Mack Chassis - Theft Deterrent System (TDS) Not Working; TDS Does Not Accept Password, Lockout Prevents Vehicle Operation - Model Years 2018 And 2019
KC-286
Service Bulletin/Repair Instructions
Mack Chassis - FSB 563-008 Plugs, Pressure Protection Manifold - New Brass Plugs For Noregon Pressure Protection Manifold (PPM)
KC-275
Service Bulletin/Repair Instructions
(Back Office Only) Vehicles Equipped With A Turbo Compound Engine - Report Of Frequent Air Compressor Cycling. Secondary Air System Air Pressure Decreases Slowly When Engine Is At Low Idle - US17+OBD16 And Newer Emissions, Model Year 2018 And Newer
KC-238
Service Bulletin/Repair Instructions
Mack Chassis - Where To Find The Body Builder Portal - Body Builder Manual ( BBM ) Information - US04 And Newer Emissions, Model Year 2008 And Newer
KC-206
Service Bulletin/Repair Instructions
Vehicle Speed Factor (K-Factor) Programming - Speed Factor Value Incorrect When Calculated In Premium Tech Tool (PTT); Speedometer Reading Incorrectly Following A Change To Vehicle Speed Factor - US17+OBD16 And Newer Emissions, Common Model Year 2018
GDC21-011
Service Bulletin/Repair Instructions
Exhaust Gas Temperature Sensor Circuit Range/Performance
KC-145
Service Bulletin/Repair Instructions
Automated Manual Transmission (AMT) (Spigot Bearing) Input Shaft Repair Kit And Shim Kit, Part Number Information, Reference Guide - US07 And Newer Emissions, Model Year 2008 And Newer
KC-119
Service Bulletin/Repair Instructions
Mack Chassis - Equipped With An Automated Manual Transmission (mDrive, AMT) AMT-C, AMT-D Or AMT-F - Transmission Oil Specifications - Model Years 2010 To 2020
KC-167
Service Bulletin/Repair Instructions
Premium Tech Tool (PTT) Error Code 43: Service Regeneration Fails To Start; Service Regen Does Not Complete With Error 43 Displayed - US10+OBD13 And Newer Emissions, Common Model Year 2014 And Newer
KC-157
Service Bulletin/Repair Instructions
Mack Chassis - Diagnostic Trouble Code ( DTC ) P009E-73 - Fuel Pressure Relief Control Performance / Stuck Off - US17+OBD16 And US17+OBD18 ( GHG17 ) Emissions (With Common Rail Fuel System), Commonly Model Years 2018 And 2019
KC-159
Service Bulletin/Repair Instructions
Trucks Equipped With A Cummins Engine - Engine Preheat Icon Does Not Illuminate In The Instrument Cluster (IC) During Engine Pre-heat (Intake Air Heater) Operation - Vehicles With 2018 Instrument Cluster Update, Model Year 2018 And Newer
KC-163
Service Bulletin/Repair Instructions
Diesel Fuel Information - Acceptable Biodiesel, Fuel Blend For Summer And Winter - US07 And Newer Emissions, Model Year 2008 And Newer
KC-165
Service Bulletin/Repair Instructions
Model Year 2018 - Equipped With An Automated Manual Transmission ( AMT-F ) ( I-Shift, mDRIVE ) - Noisy When The Vehicle Is Stationary Shifting From Neutral To Drive Or Reverse
KC-193
Service Bulletin/Repair Instructions
Mack Chassis - Particulate Matter (PM) Sensor Diagnostic Trouble Codes (DTC) Illuminating The Malfunction Indicator Lamp (MIL); Tech Tip TT-014-2016 - US14+OBD16, US17+OBD16 And Newer Emissions, Common Model Year 2017 And Newer - To Be Used For EVERY
KC-130
Service Bulletin/Repair Instructions
Air In The Fuel System Tests, Common Rail Fuel System - US17+OBD16 and Newer Emissions
KC-136
Service Bulletin/Repair Instructions
Aftertreatment Control Module (ACM) Offline/Not Visible/Missing From Control Unit Information in Premium Tech Tool (PTT) - US10+OBD13 And Newer Emissions
KC-124
Service Bulletin/Repair Instructions
Automated Manual Transmission Gearbox Will Not Shift To High Range After Gearbox Repair; MID 130 PSID 24 FMI 1, P1072-92 Unintentional Disengagement Of High Range - US07 And Newer Emissions, Model Year 2008 And Newer
KC-126
Service Bulletin/Repair Instructions
Engine Control Module (EMS)Â Software (MSW) Information - November 2019; Improvement List (Change Log) And Explanations For Issues And Diagnostic Trouble Codes (DTC, Fault Codes) US17+OBD2016 And US17+OBD18 Emissions, Model Years 2018 And 2019
KC-115
Service Bulletin/Repair Instructions
Automated Manual Transmission ( AMT ) ( I-Shift, mDRIVE ) Equipped Chassis, OBD13 And Newer - Light Turbo Surge ( Chuff ) During Skip Shifting
CBR-15
Service Bulletin/Repair Instructions
Diagnostic Trouble Codes (DTC) For The Engine Pre-Heat Relay: Supplementary Instructions
FSB 237-021v2
Service Bulletin/Repair Instructions
Revision: Valve, Common Rail, Removal
KC-544
Service Bulletin/Repair Instructions
Model Year 2017, 2018 - ** Tech Tip ** TT - 000 - 2017 GPS Inoperative Message In DID ( Driver Information Display ) - Telematics Gateway ( TGW )
KC-2109
Service Bulletin/Repair Instructions
Mack Chassis - Diagnostic Trouble Code (DTC) P009B-13 Fuel Pressure Relief Control â Circuit Open; Possible Derate - US17+OBD16 And US17+OBD18 Emissions, Model Years 2018 And 2019
FSB 491-032
Service Bulletin/Repair Instructions
Transmission Oil Cooler Hose, Replacement
FSB 237-021
Service Bulletin/Repair Instructions
Valve, Common Rail, Removal
FSB 284-070
Service Bulletin/Repair Instructions
DTC P0194-00 and/or P016E-00, Fuel Rail Pressure Sensor (RPS) and wiring harness, Replacement
KC-901
Service Bulletin/Repair Instructions
Remote Control Central Door Lock, Programming; Key Fob Cannot Be Programmed Or Does Not Work After Programming - Model Year 2018 And Newer
KC-2035
Service Bulletin/Repair Instructions
Mack Chassis - Mileage Does Not Store At Key OFF
K53338075
Service Bulletin/Repair Instructions
Diagnostic Trouble Codes (DTC) For The Engine Pre-Heat Relay: Supplementary Instructions - US10+OBD13 And Newer Emissions, Model Year 2014 And Newer
K03573329
Service Bulletin/Repair Instructions
Diagnostic Trouble Codes ( DTC ) P2080, P2084, P242B Lighting The Malfunction Indicator Lamp ( MIL ) - US14+OBD16, US17+OBD16, And US17+OBD18 Emissions, Model Years 2017 To 2019
K07192247
Service Bulletin/Repair Instructions
Driveline Noise, Suspension Ride Height Too High, Suspension Will Not Exhaust - Chassis Built 2016w01 And Newer
FSB 386-011
Service Bulletin/Repair Instructions
Air Pressure Switch, Replacement
K47547856
Service Bulletin/Repair Instructions
Particulate Matter (PM) Sensor Diagnostic Trouble Codes (DTC) Illuminating The Malfunction Indicator Lamp (MIL) - US14+OBD16, US17+OBD16 And Newer Emissions, Model Year 2017 And Newer - To Be Used For EVERY Visit
K65527708
Service Bulletin/Repair Instructions
Diagnostic Trouble Codes (DTC) P20EE And P103C, Diagnostic Procedure; REPLACES GUIDED DIAGNOSTICS IN PREMIUM TECH TOOL ( PTT ) - US17+OBD16 Through US17+OBD2018 Emissions, Model Years 2018 And 2019
K75110032
Service Bulletin/Repair Instructions
FSB 233-007, Fuel Filter Housing, Replacement; Extra Port On Fuel Filter Housing When Replacing With New Part - Vehicles Manufactured Between 14 November 2016 And 31 December 2019
FSB 233-007
Service Bulletin/Repair Instructions
Fuel Filter Housing, Replacement
K59554255
Service Bulletin/Repair Instructions
EXPIRED - Refer To K47547856 - Debranded Solutions - Mack Chassis - Particulate Matter (PM) Sensor Diagnostic Trouble Codes (DTC) Illuminating The Malfunction Indicator Lamp (MIL); Tech Tip TT-014-2016 - US14+OBD16, US17+OBD16 And Newer Emissions, Common Model Year 2017 And Newer - To Be Used For EVERY Visit
K01157283
Service Bulletin/Repair Instructions
Front Accessory Drive Noise, Alternator Belt Wear, Alternator Belt Tensioner Failure - Model Year 2017 And Newer
K25470463
Service Bulletin/Repair Instructions
Mack Chassis - Emcon (Spark Assist) Engine Aftertreatment System Troubleshooting Check Sheet - US07 Emissions
S7454
Service Bulletin/Repair Instructions
Modify Air Dryer TCOV
K53580514
Service Bulletin/Repair Instructions
Brake Drum Inspection - Checking Runout, Wear, And Other Characteristics
K25036045
Service Bulletin/Repair Instructions
Mack Chassis - Diagnostic Trouble Code ( DTC ) SPN4094, Check List - US10 Emissions
K31822325
Service Bulletin/Repair Instructions
Mack Chassis - Differential Carrier Models CRD 125 And CRD 150 - New Differential Axle Seal Installation Tool; New Tool Required For New Input And Output Seal Installation
K40914241
Service Bulletin/Repair Instructions
Common Rail Fuel System Faults - Diagnostic Trouble Codes (DTC) P0094, P228F, P016F, P0087,P00C6, P0257, P2A17, P2A1F, P008A; Repair Information - US17+OBD16, US17+OBD18, and US17+OBD19 Emissions, Model Years 2018 To 2020
K17028411
Service Bulletin/Repair Instructions
Electronic Control Unit (ECU) Replacement (EMS, VECU, TECU, LCM) - Programming (Conversion Kit) Requirements When Installing An ECU With A Newer Part Number - US04 To US10 Chassis (9-Pin Diagnostic Connector)
K15552222
Service Bulletin/Repair Instructions
Mack US10 Spark Assist Troubleshooting Check Sheet
K88992892
Service Bulletin/Repair Instructions
Assembled Camshaft - Injector Lobe Rotation Inspection For Possible Spun Camshaft Lobe; Diagnostic Trouble Codes (DTC) P0257-00, P2A17-00, Or P2A1F-00, Possible Lack Of Power - US17+OBD16 and Newer Emissions
K44714632
Service Bulletin/Repair Instructions
Mack Chassis - TerraPro (MRU) And Low Entry (LEU) Models - Field Service Bulletin FSB 381-042, Warning Light Bar Replacement and Software Conversion Kit - US07, US10, US14+OBD13 To US14+OBD16 Emissions, Model Years 2008 To 2017
K70570342
Service Bulletin/Repair Instructions
Mack Chassis - Equipped With An Allison Transmission: Enable 6th Speed - All Emissions, All Model Years
K50350118
Service Bulletin/Repair Instructions
Mack Chassis - Discharge Recirculation Valve (DRV) - FSB 258-029 , Engine Turbocharger Compressor Bypass Valve Deletion Kit, Installation
M0068
Service Bulletin/Repair Instructions
EC0020C Cabover, Analysis & SCR Hardware Replacement - 2 Box
K30024143
Service Bulletin/Repair Instructions
Mack Chassis - Oil Diluted With Fuel; Fuel In Oil, Diagnostic Information - All Emissions Prior To US17+OBD16 (Common Rail Fuel System), Model Year 2017 And Older
K41392514
Service Bulletin/Repair Instructions
Mack Chassis - Drive Axle Brake Chamber Rubbing Frame Or Brake Drum - Vehicles Built Between 7 July 2014 And 23 August 2019
K63120037
Service Bulletin/Repair Instructions
Regeneration Option Menu Missing From EATS Status Menu; Option To Start A Manual (Parked) Regen Missing In Instrument Cluster - US17+OBD2016 Emissions, Model Year 2018 (Common Rail Fuel System ONLY)
K33593604
Service Bulletin/Repair Instructions
Diagnostic Trouble Codes (DTC) P0069-64, P10EC-00, P0191-64 and P240F-00 In Different Combinations, Occurrences, And Time Stamps (Two To Four Codes), Possible Vehicle Derate - US17+OBD16, US17+OBD18 Emissions, Common Model Years 2018 And 2019
K37146742
Service Bulletin/Repair Instructions
US07 / US10 D13 Turbocharger Gasket - Low Power, Poor Regen Performance
K93394430
Service Bulletin/Repair Instructions
Engine Brake - Diagnostic Trouble Code (DTC) P1021-11 Volvo Compression Brake (VCB) Control Circuit Short To Ground - US17+OBD16 Through US17+OBD19 Emissions, Model Years 2018 To 2020
K73535241
Service Bulletin/Repair Instructions
Mack Chassis - SNM16-006 Telematics Gateway ( TGW ) Goes Offline Due To Vin Mismatch When Test Engine ECU Is Installed
K86900043
Service Bulletin/Repair Instructions
Exhaust Gas Recirculation (EGR) System - Fault Codes SPN 412 FMI 0,2,5; Diagnostic Trouble Codes (DTC) P040A, P040B, P1121 - Temperature Sensor Inspection
K73535038
Service Bulletin/Repair Instructions
Mack Chassis - Equipped With A Cummins 9 Liter Engine - Serpentine Belt Excessively Worn Or Damaged; Fan Belt Shredding Or Fraying Repeatedly
K52535491
Service Bulletin/Repair Instructions
Diagnostic / Troubleshooting Procedures For EGR System Components; Diagnostic Trouble Codes (DTC) P0401-00, P0402-00, P04DD-00, P1121-00, P1121-98 Or SPN 2659 FMI 16, SPN 2659 FMI 18, SPN 412 FMI 0, SPN 412 FMI 15 - US10, US10+OBD13, US14+OBD*, US17+OBD* With A Variable Geometry Turbocharger (VGT)
K63323104
Service Bulletin/Repair Instructions
Mack Chassis - Vibration Questionnaire, Driveline Angle Worksheet And Rough Ride Check Sheet
K94743326
Service Bulletin/Repair Instructions
Diagnostic Trouble Code (DTC) P009B-13 Fuel Pressure Relief Control - Circuit Open; Possible Derate - US17+OBD16 And US17+OBD18 Emissions, Model Years 2018 And 2019
FSB563-008
Service Bulletin/Repair Instructions
Plugs, Pressure Protection Manifold
K01029637
Service Bulletin/Repair Instructions
Diagnostic Trouble Codes (DTC) P0087 Fuel Rail/System Pressure To Low, P016F Closed Loop Fuel Pressure Control At Limit - Pressure Too Low, P228F Fuel Pressure Regulator Exceeded Learning Limits - Too High; Damaged Lip Seal On Secondary Fuel Filter; Possible Uneven Operation - US17+OBD16 And Newer Emissions (Common Rail Fuel System), Model Year 2018 And Newer
K17039050
Service Bulletin/Repair Instructions
Bendix ACom® - EC80 ESP Controller; ABS And ATC Lights Illuminated, Fault Codes Present After Making Changes, Calibration Or Programming With Acom
K11065398
Service Bulletin/Repair Instructions
Mack Chassis - Crankcase Ventilation ( CCV ) Oil Leaks - FSB 257 - 004, FSB 257 - 006 - US14 And US15 Emissions
K14637412
Service Bulletin/Repair Instructions
Diagnostic Trouble Codes (DTC) P0194-00 - Fuel Rail Pressure Sensor, Circuit Erratic, Intermittent And/Or P016E-00 Closed Loop Fuel Pressure At Control Limit, Pressure Too High - US17+OBD16 (Common Rail Fuel System) Emissions And Newer; Model Year 2017 And Newer
K10075112
Service Bulletin/Repair Instructions
Remote Control Central Door Lock, Programming; Key Fob Cannot Be Programmed Or Does Not Work After Programming - Model Year 2018 And Newer
K54101221
Service Bulletin/Repair Instructions
** Tech Tip ** TT - 001 - 2015 - How And When To Diagnose A P0402 Code
K90358413
Service Bulletin/Repair Instructions
Common Rail Fuel System - Diagnostic Trouble Code ( DTC ) P0094-00 Fuel System Leak Detected, Small Leak, Diagnostic Information - US17+OBD16 And US17+OBD18 Emissions, Common Model Years 2018 And 2019
K00585105
Service Bulletin/Repair Instructions
Diagnostic Trouble Code (DTC) P0087-00 Illuminating The Malfunction Indicator Lamp (MIL) Or Stop Engine Light; Possible Engine Power/Torque Derate - US17+OBD16 And US17+OBD18 Emissions, Common Model Years 2018 And 2019
PI0883
Service Bulletin/Repair Instructions
ECM and ACM, Software Updates
K21052070
Service Bulletin/Repair Instructions
Intermittent Occurrences Of Very Brief Loss Of Power, Engine Stumble Or Hiccup Lasting Much Less Than A Second, Most Frequently Between 1500 And 1700 RPM, No Diagnostic Trouble Codes ( DTC ) Generated - All Common Rail Fuel System Chassis - US17+OBD16 And Newer Emissions, Commonly Model Year 2018 And Newer
K00491826
Service Bulletin/Repair Instructions
Mack Chassis - Diagnostic Trouble Codes ( DTC ) P208E And P103B Logging With Possible Derate ( SCR Inducement ) - US14+OBD13, US14+OBD15, US14+OBD16 And US17+OBD16 And Newer Emissions, Common Year Models 2015 And Newer
K73658294
Service Bulletin/Repair Instructions
Mack Chassis - Diagnostic Trouble Codes ( DTC's ) P24A0 And P249F Lighting The Malfunction Indicator Lamp ( MIL ) - US14+OBD15, US14+OBD16 (Common Model Years 2016 And 2017), US17+OBD16 And Newer ( Common Rail Fuel System, Model Year 2018)
K00527512
Service Bulletin/Repair Instructions
Mack Chassis - Vehicles Equipped With A Vertical Selective Catalytic Reduction (SCR) System - Diagnostic Trouble Codes ( DTC ) P1031 With Possible P24DA Lighting The Malfunction Indicator Lamp ( MIL ) - US17+OBD16 (GHG17, Common Rail Fuel System) Emissions, Commonly Model Year 2018
K23232043
Service Bulletin/Repair Instructions
Mack Chassis - Diagnostic Trouble Code ( DTC ) P02FA Illuminating The Malfunction Indicator Lamp (MIL) - US17+OBD16 And US17+OBD18 (GHG17) Emissions (With Common Rail Fuel System), Commonly Model Years 2018 And 2019
K42200114
Service Bulletin/Repair Instructions
Mack Chassis - Diagnostic Trouble Code ( DTC ) P009E-73 - Fuel Pressure Relief Control Performance / Stuck Off - US17+OBD16 And US17+OBD18 ( GHG17 ) Emissions (With Common Rail Fuel System), Commonly Model Years 2018 And 2019
K55905221
Service Bulletin/Repair Instructions
Mack Chassis - Diagnostic Trouble Code ( DTC ) P0420 Illuminating The Malfunction Indicator Lamp (MIL) - US17+OBD16 And US17+OBD18 (GHG17) Emissions (Common Rail Fuel System) - Commonly Model Years 2018 And 2019
FSB284-067
Service Bulletin/Repair Instructions
ECM and ACM, Reprogramming, OBD2017 and OBD2018
K12902414
Service Bulletin/Repair Instructions
Engine Speed Does Not Ramp Up From Body Builder Module Request; Requests Sent Via Data Link / Body Link Connector, Not By Switch Or Hardwired Circuit - Generation 2 (INT-GEN2) And Newer (Commonly Model Year 2018)
K95422063
Service Bulletin/Repair Instructions
Mack Chassis - Diagnostic Trouble Code ( DTC ) P2459 Lighting The Malfunction Indicator Lamp ( MIL ); Possible Frequent Regeneration Requests - OBD15 And US14+OBD16 (Non-Common Rail) Chassis
K50433055
Service Bulletin/Repair Instructions
Mack Chassis - Diagnostic Trouble Code ( DTC ) P0471 Illuminating The Malfunction Indicator Lamp (MIL) - US17+OBD16 (GHG17, Common Rail Fuel System) Chassis ONLY
K18412228
Service Bulletin/Repair Instructions
Mack Chassis - Telematics Gateway ( TGW, MID 142 ) Losing Communication With The Instrument Cluster ( IC ) - Counts Of Fault Code (FC) MID 140 PSID 239 FMI 12 Data Link, MID 142 Faulty Device or Component Logging, Possibly Following Engine Start; TGW Possibly Missing From Product Information In Premium Tech Tool ( PTT ) - OBD13 Through OBD16 Emissions With TGW1 Or TGW2
K16925952
Service Bulletin/Repair Instructions
** Tech Tip ** TT - 007 - 2015 - Diagnosing The Aftertreatment Control Module DTCs P202D, P208E, P20E8 - OBD13 (Commonly Model Year 2014); Newer Chassis AFTER Reviewing Other Solutions
K43056254
Service Bulletin/Repair Instructions
Mack Chassis - Aftertreatment Control Module ( ACM ) Offline / Not Visible / Missing From Control Unit Information in Premium Tech Tool ( PTT )
K42708399
Service Bulletin/Repair Instructions
Diagnostic Trouble Code ( DTC ) P0422 Lighting The Malfunction Indicator Light (MIL ) - OBD15 And US14+OBD16 (Non-Common Rail Fuel System) Chassis
K72614548
Service Bulletin/Repair Instructions
Diagnostic Trouble Code ( DTC ) P02FA Illuminating The Malfunction Indicator Lamp (MIL) - US17 (GHG17, Common Rail Fuel System) Chassis ONLY
K01050303
Service Bulletin/Repair Instructions
Diagnostic Trouble Code ( DTC ) P0471 Illuminating The Malfunction Indicator Lamp (MIL) - US17 (GHG17, Common Rail Fuel System) Chassis ONLY
K04342327
Service Bulletin/Repair Instructions
Diagnostic Trouble Code ( DTC ) P0420 Illuminating The Malfunction Indicator Lamp (MIL) - US17 (GHG17, Common Rail Fuel System) Chassis ONLY
K14701433
Service Bulletin/Repair Instructions
Diagnostic Trouble Code ( DTC ) P009E - 73 - Fuel Pressure Relief Control Performance / Stuck Off - GHG17 ( US17 ) Chassis With Common Rail Fuel System, Updated to reflect GHG17 software release
K24483157
Service Bulletin/Repair Instructions
Diagnostic Trouble Codes ( DTC ) P208E And P103B Logging With Possible Derate ( SCR Inducement ) - OBD15, US14+OBD16 Emissions And Newer Rewrote test procedure for better clarity.
K58557784
Service Bulletin/Repair Instructions
Fuel Injector Offset Learning Diagnostic Trouble Codes ( DTC ) / Fault Codes Logged In Engine Control Module ( EMS ); Possible Rough / Uneven Idle - OBD15 Chassis
FSB284064
Service Bulletin/Repair Instructions
ECM and ACM Reprogramming, OBD2015
K86094641
Service Bulletin/Repair Instructions
Mack Chassis - Diagnostic Trouble Code ( DTC ) P226C Intermittently Lighting The Malfunction Indicator Lamp ( MIL ) - OBD15 And OBD16 Conventional Chassis.Updated to reflect release of FSB284-064 (Above)
K77864401
Service Bulletin/Repair Instructions
Mack Chassis - Diesel Exhaust Fluid ( DEF ) System Cleaning/Flush After A Pump Failure or System Contamination.Removed Tech Tip, Added correct operation ID
K53510452
Service Bulletin/Repair Instructions
Expired - Refer to K93039325 - Mack Chassis - SNM16-032 DEF (Diesel Exhaust Fluid) Contamination In Diesel Fuel.New solution released with improved information
K84262037
Service Bulletin/Repair Instructions
Issues with the Charge Air System may result in the presence of oil in the Charge Air Cooler ( CAC ) or intake piping.
K75024255
Service Bulletin/Repair Instructions
During extended periods of idling, engine speed may increase for a short time without any external command to do so.
FSB465-003
Service Bulletin/Repair Instructions
Effective September 2016, a revised composite bevel gear compartment cover with steel threaded fill plug and face-mounted o-ring was implemented into production for MACK CRD202/203, CRD150/151 and CRD 125/126 carriers. The revised composite cover replaces the previous composite cover with the rubber fill plug.
FSB 221-010
Service Bulletin/Repair Instructions
Diagnostic Trouble Codes (DTCs), Low Oil Pressure, CXU, GU, LEU, MRU
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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.