GMC Sierra Service Bulletins (2020)

1,991 manufacturer communications on file.

• February 26, 2020•Document ID: 10172333

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIT5730A

  Date Added:

  March 9, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates repair information on Service Brake System, Reduced Engine Power, and Speed Limited messages on the DIC.  Along with these messages, a SES MIL will be on and the brake pedal may feel hard.  When checking for DTC's the Brake System Control Module (BSCM) with have set a P0606 and C0021. Dealers are to reprogram the BSCM with updated calibrations to correct the concern.

  Associated Products (2)

  2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10172333-0001.pdf↗
• February 25, 2020•Document ID: 10173408

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  20NA019

  Date Added:

  April 6, 2020

  Manufacturer:

  GMC

  Summary

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

  Associated Products (4)

  2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10173408-0001.pdf↗
• February 24, 2020•Document ID: 10173404

  Service Bulletin/Repair Instructions
  EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; STEERING

  Mfr Comm. #:

  20NA006

  Date Added:

  April 6, 2020

  Manufacturer:

  GMC

  Summary

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

  Associated Products (12)

  2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra2018 Chevrolet Silverado2018 GMC Sierra2017 Chevrolet Silverado2017 GMC Sierra2016 Chevrolet Silverado2016 GMC Sierra2015 Chevrolet Silverado2015 GMC Sierra
  Associated Documents

  • DownloadMC-10173404-0001.pdf↗
• February 21, 2020•Document ID: 10172668

  Service Bulletin/Repair Instructions
  SERVICE BRAKES; ELECTRICAL SYSTEM

  Mfr Comm. #:

  N202294820

  Date Added:

  March 23, 2020

  Manufacturer:

  CADILLAC

  Summary

  Customer Satisfaction Program - The brake system control module software in these vehicles may contain an error. If (i) the vehicle is started remotely using the MyChevrolet, MyGMC, or MyCadillac mobile app or (ii) the driver enters the vehicle and waits five or more minutes before starting the vehicle using the ignition, this software error can, in rare cases, disable the vehicle?s electronic brake assist and illuminate the ESC, ABS and BRAKE telltales. This occurs at startup and the telltales are illuminated before the driver puts the vehicle into gear. Dealers will reprogram the brake system control module.

  Associated Products (6)

  2020 Cadillac XT52020 Cadillac XT62020 Chevrolet Blazer2020 Chevrolet Silverado2020 GMC Acadia2020 GMC Sierra
  Associated Documents

  • DownloadMC-10172668-0001.pdf↗
• February 21, 2020•Document ID: 10172329

  Service Bulletin/Repair Instructions
  FUEL SYSTEM, DIESEL

  Mfr Comm. #:

  PIP5667B

  Date Added:

  March 9, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates the part restriction for the diesel engine air delivery and exhaust system components

  Associated Products (2)

  2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10172329-0001.pdf↗
• February 20, 2020•Document ID: 10172812

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING:EXHAUST SYSTEM

  Mfr Comm. #:

  20NA039

  Date Added:

  March 30, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This technical bulletin provides a procedure to program the ECM and/or replace the exhaust particulate sensor to correct the DTC that set after the service update has been previously performed.

  Associated Products (2)

  2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10172812-0001.pdf↗
• February 19, 2020•Document ID: 10172326

  Service Bulletin/Repair Instructions
  ENGINE; EQUIPMENT

  Mfr Comm. #:

  PIP5656D

  Date Added:

  March 9, 2020

  Manufacturer:

  CHEVROLET

  Summary

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

  Associated Products (2)

  2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10172326-0001.pdf↗
• February 17, 2020•Document ID: 10173420

  Service Bulletin/Repair Instructions
  SUSPENSION; EQUIPMENT

  Mfr Comm. #:

  PIE0541A

  Date Added:

  April 6, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to a vibration and/or banging noise heard from under the vehicle.

  Associated Products (4)

  2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10173420-0001.pdf↗
• February 17, 2020•Document ID: 10173388

  Service Bulletin/Repair Instructions
  STRUCTURE

  Mfr Comm. #:

  18NA383

  Date Added:

  April 6, 2020

  Manufacturer:

  GMC

  Summary

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

  Associated Products (4)

  2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10173388-0001.pdf↗
• February 14, 2020•Document ID: 10173418

  Service Bulletin/Repair Instructions
  EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT ADAPTIVE/MOBILITY

  Mfr Comm. #:

  150089005C

  Date Added:

  April 6, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This Warranty Administration bulletin provides information on Essential Tools that include Consumable Parts (U.S. Only).

  Associated Products (246)

  2020 Buick Enclave2020 Buick Encore2020 Buick Envision2020 Buick Regal2020 Cadillac CT42020 Cadillac CT52020 Cadillac CT62020 Cadillac Escalade2020 Cadillac Escalade ESV2020 Cadillac XT42020 Cadillac XT52020 Cadillac XT62020 Chevrolet 35002020 Chevrolet 4500HD2020 Chevrolet 5500HD2020 Chevrolet Blazer2020 Chevrolet Bolt EV2020 Chevrolet Camaro2020 Chevrolet Colorado2020 Chevrolet Corvette+ 226 more
  Associated Documents

  • DownloadMC-10173418-0001.pdf↗
• February 14, 2020•Document ID: 10173417

  Service Bulletin/Repair Instructions
  EQUIPMENT; WHEELS

  Mfr Comm. #:

  050307009J

  Date Added:

  April 6, 2020

  Manufacturer:

  GMC

  Summary

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

  Associated Products (236)

  2020 Buick Enclave2020 Buick Encore2020 Buick Envision2020 Buick Regal2020 Cadillac CT42020 Cadillac CT52020 Cadillac CT62020 Cadillac Escalade2020 Cadillac Escalade ESV2020 Cadillac XT42020 Cadillac XT52020 Cadillac XT62020 Chevrolet Blazer2020 Chevrolet Bolt EV2020 Chevrolet Camaro2020 Chevrolet Colorado2020 Chevrolet Corvette2020 Chevrolet Equinox2020 Chevrolet Express2020 Chevrolet Impala+ 216 more
  Associated Documents

  • DownloadMC-10173417-0001.pdf↗
• February 14, 2020•Document ID: 10173397

  Service Bulletin/Repair Instructions
  EQUIPMENT; ENGINE

  Mfr Comm. #:

  19NA218

  Date Added:

  April 6, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This technical bulletin provides a service procedure to correct a condition of Ticking Noise from the Engine.

  Associated Products (21)

  2020 Cadillac Escalade2020 Cadillac Escalade ESV2020 Chevrolet Camaro2020 Chevrolet Corvette2020 Chevrolet Silverado2020 Chevrolet Suburban2020 Chevrolet Tahoe2020 GMC Sierra2020 GMC Yukon2020 GMC Yukon XL2019 Cadillac CTS2019 Cadillac Escalade2019 Cadillac Escalade ESV2019 Chevrolet Camaro2019 Chevrolet Corvette2019 Chevrolet Silverado2019 Chevrolet Suburban2019 Chevrolet Tahoe2019 GMC Sierra2019 GMC Yukon+ 1 more
  Associated Documents

  • DownloadMC-10173397-0001.pdf↗
• February 14, 2020•Document ID: 10172773

  Service Bulletin/Repair Instructions
  EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

  Mfr Comm. #:

  16NA119

  Date Added:

  March 30, 2020

  Manufacturer:

  CHEVROLET

  Summary

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

  Associated Products (517)

  2020 Buick Enclave2020 Buick Encore2020 Buick Envision2020 Buick Regal2020 Cadillac CT42020 Cadillac CT52020 Cadillac CT62020 Cadillac Escalade2020 Cadillac Escalade ESV2020 Cadillac XT42020 Cadillac XT52020 Cadillac XT62020 Chevrolet 35002020 Chevrolet 4500HD2020 Chevrolet 5500HD2020 Chevrolet Blazer2020 Chevrolet Bolt EV2020 Chevrolet Camaro2020 Chevrolet Colorado2020 Chevrolet Corvette+ 497 more
  Associated Documents

  • DownloadMC-10172773-0001.pdf↗
• February 14, 2020•Document ID: 10172664

  Service Bulletin/Repair Instructions
  FUEL SYSTEM, DIESEL; ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN; EQUIPMENT; ELECTRICAL SYSTEM

  Mfr Comm. #:

  N192266750-02

  Date Added:

  March 23, 2020

  Manufacturer:

  GMC

  Summary

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

  Associated Products (2)

  2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10172664-0001.pdf↗
• February 14, 2020•Document ID: 10172662

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING:ENGINE:DIESEL; EQUIPMENT

  Mfr Comm. #:

  N192286190

  Date Added:

  March 23, 2020

  Manufacturer:

  CHEVROLET

  Summary

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

  Associated Products (2)

  2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10172662-0001.pdf↗
• February 13, 2020•Document ID: 10173423

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIE0554

  Date Added:

  April 6, 2020

  Manufacturer:

  CADILLAC

  Summary

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

  Associated Products (16)

  2020 Cadillac Escalade2020 Cadillac Escalade ESV2020 Chevrolet Silverado2020 Chevrolet Suburban2020 Chevrolet Tahoe2020 GMC Sierra2020 GMC Yukon2020 GMC Yukon XL2019 Cadillac Escalade2019 Cadillac Escalade ESV2019 Chevrolet Silverado2019 Chevrolet Suburban2019 Chevrolet Tahoe2019 GMC Sierra2019 GMC Yukon2019 GMC Yukon XL
  Associated Documents

  • DownloadMC-10173423-0001.pdf↗
• February 13, 2020•Document ID: 10172658

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; ENGINE

  Mfr Comm. #:

  N192282970-01

  Date Added:

  March 23, 2020

  Manufacturer:

  CHEVROLET

  Summary

  Service Update - Certain vehicles may have a condition where the check engine or the reduced power mode light may come on during start-up or while driving. Reprogram the engine control module and the reductant control module.

  Associated Products (2)

  2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10172658-0001.pdf↗
• February 13, 2020•Document ID: 10172317

  Service Bulletin/Repair Instructions
  FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY

  Mfr Comm. #:

  PIT5732

  Date Added:

  March 9, 2020

  Manufacturer:

  CHEVROLET

  Summary

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

  Associated Products (2)

  2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10172317-0001.pdf↗
• February 11, 2020•Document ID: 10173424

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  PIE0555

  Date Added:

  April 6, 2020

  Manufacturer:

  GMC

  Summary

  This engineering information (EI) bulletin is requesting information from the field on vehicles experiencing reduced engine power. GM Engineering needs to gather information to root cause the customer concern and develop a field fix.

  Associated Products (2)

  2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10173424-0001.pdf↗
• February 7, 2020•Document ID: 10172784

  Service Bulletin/Repair Instructions
  ENGINE; EQUIPMENT

  Mfr Comm. #:

  18NA073

  Date Added:

  March 30, 2020

  Manufacturer:

  CHEVROLET

  Summary

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

  Associated Products (245)

  2020 Buick Enclave2020 Buick Encore2020 Buick Envision2020 Buick Regal2020 Cadillac CT42020 Cadillac CT52020 Cadillac CT62020 Cadillac Escalade2020 Cadillac Escalade ESV2020 Cadillac XT42020 Cadillac XT52020 Cadillac XT62020 Chevrolet 35002020 Chevrolet 4500HD2020 Chevrolet 5500HD2020 Chevrolet Blazer2020 Chevrolet Bolt EV2020 Chevrolet Camaro2020 Chevrolet Colorado2020 Chevrolet Equinox+ 225 more
  Associated Documents

  • DownloadMC-10172784-0001.pdf↗