GMC Sierra Service Bulletins

10,018 manufacturer communications on file.

• June 9, 2021•Document ID: 10200181

  Service Bulletin/Repair Instructions
  EQUIPMENT:APPLIANCE:TV/RADIO/SPEAKERS; ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.

  Mfr Comm. #:

  N212332820

  Date Added:

  August 9, 2021

  Manufacturer:

  CADILLAC

  Summary

  Service Update. Certain vehicles may not be able to access Apps. A most notable improvement list this software update may correct is located at the end of this bulletin for conditions or concerns a customer may experience. Dealers will reprogram the radio.

  Associated Products (4)

  2021 Cadillac XT42021 Chevrolet Corvette2021 Chevrolet Silverado2021 GMC Sierra
  Associated Documents

  • DownloadMC-10200181-0001.pdf↗
• June 9, 2021•Document ID: 10200135

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  21NA132

  Date Added:

  August 9, 2021

  Manufacturer:

  GMC

  Summary

  This informational bulletin provides Changes to the Automatic Stop/Start feature for Certain 2021 Escalade models, Silverado 1500, Suburban, Tahoe, Sierra 1500, Yukon models Equipped with RPO NSS.

  Associated Products (8)

  2021 Cadillac Escalade2021 Cadillac Escalade ESV2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Sierra2021 GMC Yukon2021 GMC Yukon XL
  Associated Documents

  • DownloadMC-10200135-0001.pdf↗
• June 8, 2021•Document ID: 10201272

  Service Bulletin/Repair Instructions
  BACK OVER PREVENTION

  Mfr Comm. #:

  PIP5808

  Date Added:

  September 13, 2021

  Manufacturer:

  GMC

  Summary

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

  Associated Products (2)

  2021 GMC Sierra2020 GMC Sierra
  Associated Documents

  • DownloadMC-10201272-0001.pdf↗
• June 7, 2021•Document ID: 10200152

  Service Bulletin/Repair Instructions
  EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; POWER TRAIN

  Mfr Comm. #:

  080730035E

  Date Added:

  August 9, 2021

  Manufacturer:

  BUICK

  Summary

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

  Associated Products (692)

  2021 Buick Enclave2021 Buick Encore2021 Buick Encore GX2021 Buick Envision2021 Cadillac CT42021 Cadillac CT52021 Cadillac Escalade2021 Cadillac Escalade ESV2021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet 35002021 Chevrolet 4500HD2021 Chevrolet 5500HD2021 Chevrolet Blazer2021 Chevrolet Bolt EV2021 Chevrolet Camaro2021 Chevrolet Colorado2021 Chevrolet Corvette2021 Chevrolet Equinox+ 672 more
  Associated Documents

  • DownloadMC-10200152-0001.pdf↗
• June 7, 2021•Document ID: 10200125

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

  Mfr Comm. #:

  21NA095

  Date Added:

  August 9, 2021

  Manufacturer:

  GMC

  Summary

  This technical bulletin provides a procedure to seal the exhaust at the UFSCR and Tailpipe flange.

  Associated Products (14)

  2021 Cadillac Escalade2021 Cadillac Escalade ESV2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Sierra2021 GMC Yukon2021 GMC Yukon XL2020 Chevrolet Silverado2020 Chevrolet Suburban2020 Chevrolet Tahoe2020 GMC Sierra2020 GMC Yukon2020 GMC Yukon XL
  Associated Documents

  • DownloadMC-10200125-0001.pdf↗
• June 4, 2021•Document ID: 10201268

  Service Bulletin/Repair Instructions
  STRUCTURE; STRUCTURE:BODY:BUMPERS:ACTIVE SHUTTERS/GRILL

  Mfr Comm. #:

  PIT5039D

  Date Added:

  September 13, 2021

  Manufacturer:

  GMC

  Summary

  This Preliminary Information communication provides information to the technician about vehicles that the customer or up-fitter may have removed the rear bumper, install a different rear bumper, or add a different box/flat bed/cube box/hitch, etc. to the rear of the truck, which affects the rear park assist operation. Technician can disable the rear park assist for this concern.

  Associated Products (34)

  2021 Chevrolet Express2021 GMC Savana2020 Chevrolet Express2020 GMC Savana2019 Chevrolet Express2019 GMC Savana2018 Chevrolet Express2018 GMC Savana2017 Chevrolet Express2017 GMC Savana2016 Chevrolet Express2016 GMC Savana2015 Chevrolet Express2015 GMC Savana2014 Chevrolet Express2014 Chevrolet Silverado2014 GMC Savana2014 GMC Sierra2013 Chevrolet Express2013 Chevrolet Silverado+ 14 more
  Associated Documents

  • DownloadMC-10201268-0001.pdf↗
• June 4, 2021•Document ID: 10199284

  Service Bulletin/Repair Instructions
  STRUCTURE:BODY:BUMPERS

  Mfr Comm. #:

  PIT5039D

  Date Added:

  July 19, 2021

  Manufacturer:

  GMC

  Summary

  This Preliminary Information communication provides information to the technician about vehicles that the customer or up-fitter may have removed the rear bumper, install a different rear bumper, or add a different box/flat bed/cube box/hitch, etc. to the rear of the truck, which affects the rear park assist operation. Technician can disable the rear park assist for this concern.

  Associated Products (34)

  2021 Chevrolet Express2021 GMC Savana2020 Chevrolet Express2020 GMC Savana2019 Chevrolet Express2019 GMC Savana2018 Chevrolet Express2018 GMC Savana2017 Chevrolet Express2017 GMC Savana2016 Chevrolet Express2016 GMC Savana2015 Chevrolet Express2015 GMC Savana2014 Chevrolet Express2014 Chevrolet Silverado2014 GMC Savana2014 GMC Sierra2013 Chevrolet Express2013 Chevrolet Silverado+ 14 more
  Associated Documents

  • DownloadMC-10199284-0001.pdf↗
• June 3, 2021•Document ID: 10201266

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  PIP5762A

  Date Added:

  September 13, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This preliminary information communicates to technicians a possible valve cover causing oil consusmption and the repair.

  Associated Products (2)

  2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10201266-0001.pdf↗
• June 3, 2021•Document ID: 10200170

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; EQUIPMENT

  Mfr Comm. #:

  PIE0642A

  Date Added:

  August 9, 2021

  Manufacturer:

  GMC

  Summary

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

  Associated Products (4)

  2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10200170-0001.pdf↗
• June 3, 2021•Document ID: 10200155

  Service Bulletin/Repair Instructions
  EQUIPMENT ADAPTIVE/MOBILITY; POWER TRAIN:DRIVELINE; EQUIPMENT

  Mfr Comm. #:

  PIE0602C

  Date Added:

  August 9, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the Service Engine Soon Lamp illuminated on Driver Information Center.

  Associated Products (4)

  2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10200155-0001.pdf↗
• June 3, 2021•Document ID: 10201267

  Service Bulletin/Repair Instructions
  POWER TRAIN; FUEL SYSTEM, GASOLINE

  Mfr Comm. #:

  PIP5792B

  Date Added:

  September 13, 2021

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates to the dealer technician that if a customer comments that their vehicle equipped with a 6L80, 6L90, 8L90, 10L80, or 10L1000 transmission has a harsh shift, shudder, stall or high transmission fluid temperature concern they should inspect for a twisted transmission cooler line. Technicians are instructed to disconnect the cooler line and untwist it then reconnect the cooler line and inspect the cooler line for being misshaped. Technicians are instructed to replace the cooler line if it is misshaped.

  Associated Products (6)

  2021 Cadillac Escalade2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Sierra2021 GMC Yukon
  Associated Documents

  • DownloadMC-10201267-0001.pdf↗
• June 3, 2021•Document ID: 10200153

  Service Bulletin/Repair Instructions
  EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY

  Mfr Comm. #:

  110089002E

  Date Added:

  August 9, 2021

  Manufacturer:

  CHEVROLET

  Summary

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

  Associated Products (299)

  2022 Buick Encore2022 Buick Encore GX2022 Cadillac CT42022 Cadillac CT52022 Cadillac Escalade2022 Cadillac Escalade ESV2022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet Bolt EUV2022 Chevrolet Bolt EV2022 Chevrolet Camaro2022 Chevrolet Equinox2022 Chevrolet Express2022 Chevrolet Malibu2022 Chevrolet Silverado2022 Chevrolet Spark2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 Chevrolet Trailblazer+ 279 more
  Associated Documents

  • DownloadMC-10200153-0001.pdf↗
• June 2, 2021•Document ID: 10200179

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  N202309631

  Date Added:

  August 9, 2021

  Manufacturer:

  GMC

  Summary

  Customer Satisfaction Program - Certain 2020 model year Chevrolet Silverado 1500 and Sierra 1500 vehicles are equipped with trailering information labels that incorrectly state the vehicle?s trailering capabilities. Customers will receive a letter with the correct trailering information. This letter should be kept in the glovebox. They may request a replacement label from their dealer, which is VIN specific, and will need to be ordered.

  Associated Products (2)

  2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10200179-0001.pdf↗
• June 2, 2021•Document ID: 10200130

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  21NA125

  Date Added:

  August 9, 2021

  Manufacturer:

  GMC

  Summary

  This service bulletin provides a procedure to correct a condition of a Service Emission System and/or Service Engine Soon Lamp Illuminated on Driver Information Center (DIC), DTC P208B Set.

  Associated Products (4)

  2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10200130-0001.pdf↗
• June 1, 2021•Document ID: 10200177

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM); FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM

  Mfr Comm. #:

  N212336570

  Date Added:

  August 9, 2021

  Manufacturer:

  CHEVROLET

  Summary

  Service Update. Certain trucks may falsely set fuel injector diagnostic trouble codes P026C and/or P20EE. Dealers will reprogram the engine control module (ECM).

  Associated Products (2)

  2021 Chevrolet Silverado2021 GMC Sierra
  Associated Documents

  • DownloadMC-10200177-0001.pdf↗
• June 1, 2021•Document ID: 10201265

  Service Bulletin/Repair Instructions
  BACK OVER PREVENTION

  Mfr Comm. #:

  PIP5752M

  Date Added:

  September 13, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates A Vehicle may have a concern of service engine light, misfire and  engine noise with possible of DTC P0300 P0106 P0506,  Possible valve spring concern

  Associated Products (11)

  2021 Cadillac Escalade2021 Chevrolet Camaro2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Sierra2021 GMC Yukon2020 Chevrolet Camaro2020 Chevrolet Corvette2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10201265-0001.pdf↗
• May 28, 2021•Document ID: 10199282

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY:MANAGEMENT SYSTEM/ENERGY CONTROL MODULE (BMS/BECM)

  Mfr Comm. #:

  21NA128

  Date Added:

  July 19, 2021

  Manufacturer:

  GMC

  Summary

  This technical bulletin provides repair information to correct a customer concern of MIL Illuminated- ECM Update for P026C, P20EE, or P11D5.

  Associated Products (2)

  2021 Chevrolet Silverado2021 GMC Sierra
  Associated Documents

  • DownloadMC-10199282-0001.pdf↗
• May 28, 2021•Document ID: 10198891

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  21NA128

  Date Added:

  July 6, 2021

  Manufacturer:

  GMC

  Summary

  This technical bulletin provides repair information to correct a customer concern of MIL Illuminated- ECM Update for P026C, P20EE, or P11D5.

  Associated Products (2)

  2021 Chevrolet Silverado2021 GMC Sierra
  Associated Documents

  • DownloadMC-10198891-0001.pdf↗
• May 27, 2021•Document ID: 10200114

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; ENGINE

  Mfr Comm. #:

  PIE0642

  Date Added:

  August 9, 2021

  Manufacturer:

  CHEVROLET

  Summary

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

  Associated Products (4)

  2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10200114-0001.pdf↗
• May 27, 2021•Document ID: 10199256

  Service Bulletin/Repair Instructions
  FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM

  Mfr Comm. #:

  21NA025

  Date Added:

  July 19, 2021

  Manufacturer:

  CHEVROLET

  Summary

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

  Associated Products (4)

  2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10199256-0001.pdf↗