GMC Sierra Service Bulletins (2020)

1,991 manufacturer communications on file.

• May 19, 2022•Document ID: 10213034

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  20-NA-218

  Date Added:

  June 2, 2022

  Manufacturer:

  GMC

  Summary

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

  Associated Products (31)

  2021 Buick Encore2021 Buick Encore GX2021 Cadillac Escalade2021 Cadillac Escalade ESV2021 Chevrolet Camaro2021 Chevrolet Equinox2021 Chevrolet Express2021 Chevrolet Malibu2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 Chevrolet Trailblazer2021 GMC Savana2021 GMC Sierra2021 GMC Terrain2021 GMC Yukon2021 GMC Yukon XL2020 Buick Encore GX2020 Buick Regal2020 Cadillac CT5+ 11 more
  Associated Documents

  • DownloadMC-10213034-0001.pdf↗
• May 19, 2022•Document ID: 10213032

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  20-NA-142

  Date Added:

  June 2, 2022

  Manufacturer:

  CHEVROLET

  Summary

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

  Associated Products (57)

  2022 Chevrolet Equinox2022 Chevrolet Express2022 Chevrolet Silverado2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 GMC Savana2022 GMC Sierra2022 GMC Yukon2021 Chevrolet Express2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Savana2021 GMC Sierra2021 GMC Yukon2020 Chevrolet Express2020 Chevrolet Silverado2020 Chevrolet Suburban2020 Chevrolet Tahoe2020 GMC Savana+ 37 more
  Associated Documents

  • DownloadMC-10213032-0001.pdf↗
• May 18, 2022•Document ID: 10213028

  Service Bulletin/Repair Instructions
  STRUCTURE

  Mfr Comm. #:

  19-NA-257

  Date Added:

  June 1, 2022

  Manufacturer:

  GMC

  Summary

  This technical bulletin provides repair information to correct a customer concern of the pickup box being out of alignment.

  Associated Products (8)

  2022 Chevrolet Silverado2022 GMC Sierra2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10213028-0001.pdf↗
• May 17, 2022•Document ID: 10213798

  Service Bulletin/Repair Instructions
  EXTERIOR LIGHTING:HEADLIGHTS

  Mfr Comm. #:

  PIT5918

  Date Added:

  June 13, 2022

  Manufacturer:

  GMC

  Summary

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

  Associated Products (5)

  2022 GMC Sierra2022 GMC Yukon XL2021 GMC Sierra2021 GMC Yukon XL2020 GMC Sierra
  Associated Documents

  • DownloadMC-10213798-0001.pdf↗
• May 16, 2022•Document ID: 10213036

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE; FUEL SYSTEM, DIESEL; WHEELS; SERVICE BRAKES

  Mfr Comm. #:

  21-NA-043

  Date Added:

  June 2, 2022

  Manufacturer:

  CHEVROLET

  Summary

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

  Associated Products (522)

  2023 Chevrolet Corvette2022 Buick Enclave2022 Buick Encore2022 Buick Encore GX2022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 Cadillac Escalade2022 Cadillac Escalade ESV2022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet 35002022 Chevrolet 45002022 Chevrolet 4500HD2022 Chevrolet 4500XD2022 Chevrolet 5500HD2022 Chevrolet 5500XD2022 Chevrolet Blazer2022 Chevrolet Bolt EUV+ 502 more
  Associated Documents

  • DownloadMC-10213036-0001.pdf↗
• May 16, 2022•Document ID: 10213022

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

  Mfr Comm. #:

  18-NA-099

  Date Added:

  June 1, 2022

  Manufacturer:

  GMC

  Summary

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

  Associated Products (818)

  2023 Chevrolet Corvette2022 Buick Enclave2022 Buick Encore2022 Buick Encore GX2022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 Cadillac Escalade2022 Cadillac Escalade ESV2022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet 35002022 Chevrolet 45002022 Chevrolet 4500HD2022 Chevrolet 4500XD2022 Chevrolet 5500HD2022 Chevrolet 5500XD2022 Chevrolet Blazer2022 Chevrolet Bolt EUV+ 798 more
  Associated Documents

  • DownloadMC-10213022-0001.pdf↗
• May 13, 2022•Document ID: 10212923

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  2-NA-066

  Date Added:

  May 31, 2022

  Manufacturer:

  CHEVROLET

  Summary

  The technical bulletin provides a procedure to lube the yoke and caps if found the cause of the noise from the propshaft area.

  Associated Products (8)

  2022 Chevrolet Silverado2022 GMC Sierra2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10212923-0001.pdf↗
• May 12, 2022•Document ID: 10213796

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM:INSTRUMENT PANEL:SPEEDOMETER/ODOMETER

  Mfr Comm. #:

  PIT5195G

  Date Added:

  June 13, 2022

  Manufacturer:

  CHEVROLET

  Summary

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

  Associated Products (159)

  2022 Chevrolet Camaro2022 Chevrolet Equinox2022 Chevrolet Malibu2022 Chevrolet Silverado2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 GMC Sierra2022 GMC Terrain2022 GMC Yukon XL2021 Chevrolet Camaro2021 Chevrolet Equinox2021 Chevrolet Malibu2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Sierra2021 GMC Terrain2021 GMC Yukon XL2020 Chevrolet Camaro2020 Chevrolet Equinox+ 139 more
  Associated Documents

  • DownloadMC-10213796-0001.pdf↗
• May 12, 2022•Document ID: 10212908

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  14-06-04-004H

  Date Added:

  May 31, 2022

  Manufacturer:

  CADILLAC

  Summary

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

  Associated Products (83)

  2022 Cadillac Escalade2022 Cadillac Escalade ESV2022 Chevrolet Camaro2022 Chevrolet Silverado2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 GMC Sierra2022 GMC Yukon2022 GMC Yukon XL2021 Cadillac Escalade2021 Cadillac Escalade ESV2021 Chevrolet Camaro2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Sierra2021 GMC Yukon2021 GMC Yukon XL2020 Cadillac Escalade2020 Cadillac Escalade ESV+ 63 more
  Associated Documents

  • DownloadMC-10212908-0001.pdf↗
• May 11, 2022•Document ID: 10212951

  Service Bulletin/Repair Instructions
  FUEL SYSTEM, DIESEL; ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  PIE0695

  Date Added:

  June 1, 2022

  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 Service Emission System and/or DEF Level Low message on driver information center (DIC).

  Associated Products (6)

  2022 Chevrolet Silverado2022 GMC Sierra2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10212951-0001.pdf↗
• May 11, 2022•Document ID: 10212910

  Service Bulletin/Repair Instructions
  WHEELS

  Mfr Comm. #:

  20-NA-159

  Date Added:

  May 31, 2022

  Manufacturer:

  GMC

  Summary

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

  Associated Products (445)

  2022 Buick Enclave2022 Buick Encore2022 Buick Encore GX2022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 Cadillac Escalade2022 Cadillac Escalade ESV2022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet Blazer2022 Chevrolet Bolt EUV2022 Chevrolet Bolt EV2022 Chevrolet Camaro2022 Chevrolet Colorado2022 Chevrolet Corvette2022 Chevrolet Equinox2022 Chevrolet Express2022 Chevrolet Malibu+ 425 more
  Associated Documents

  • DownloadMC-10212910-0001.pdf↗
• May 9, 2022•Document ID: 10212912

  Service Bulletin/Repair Instructions
  STRUCTURE

  Mfr Comm. #:

  20-NA-175

  Date Added:

  May 31, 2022

  Manufacturer:

  GMC

  Summary

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

  Associated Products (8)

  2022 Chevrolet Silverado2022 GMC Sierra2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10212912-0001.pdf↗
• May 9, 2022•Document ID: 10213791

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIT5745D

  Date Added:

  June 13, 2022

  Manufacturer:

  BUICK

  Summary

  This Preliminary information communicates and issue with the memory seat module waking up the low speed GM lan bus and causing a battery draw.

  Associated Products (101)

  2022 Buick Enclave2022 Buick Encore2022 Buick Encore GX2022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet Blazer2022 Chevrolet Camaro2022 Chevrolet Equinox2022 Chevrolet Malibu2022 Chevrolet Silverado2022 Chevrolet Traverse2022 Chevrolet Trax2022 GMC Acadia2022 GMC Sierra2022 GMC Terrain2021 Buick Enclave2021 Buick Encore2021 Buick Encore GX2021 Cadillac XT4+ 81 more
  Associated Documents

  • DownloadMC-10213791-0001.pdf↗
• May 9, 2022•Document ID: 10212919

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  21-NA-149

  Date Added:

  May 31, 2022

  Manufacturer:

  GMC

  Summary

  This technical bulletin provides repair information to correct a customer concern of Engine Wire Harness Chafing.

  Associated Products (20)

  2022 Cadillac Escalade2022 Cadillac Escalade ESV2022 Chevrolet Silverado2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 GMC Sierra2022 GMC Yukon2022 GMC Yukon XL2021 Cadillac Escalade2021 Cadillac Escalade ESV2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Sierra2021 GMC Yukon2021 GMC Yukon XL2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10212919-0001.pdf↗
• May 6, 2022•Document ID: 10213787

  Service Bulletin/Repair Instructions
  EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; BACK OVER PREVENTION:DISPLAY FUNCTION

  Mfr Comm. #:

  PIT5914

  Date Added:

  June 13, 2022

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates a concern on some 2020 Silverado and Sierra trucks where the radio display will go blank when trying to open the trailering app.  Engineerng has root caused the issue, and is working on a software fix.

  Associated Products (2)

  2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10213787-0001.pdf↗
• May 6, 2022•Document ID: 10211684

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  16-NA-019

  Date Added:

  May 10, 2022

  Manufacturer:

  GMC

  Summary

  This service bulletin provides information on Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts, Slips, or Flares.

  Associated Products (73)

  2022 Cadillac CT42022 Chevrolet Camaro2022 Chevrolet Colorado2022 Chevrolet Equinox2022 Chevrolet Express2022 Chevrolet Silverado2022 GMC Canyon2022 GMC Savana2022 GMC Sierra2021 Cadillac CT42021 Chevrolet Camaro2021 Chevrolet Colorado2021 Chevrolet Express2021 Chevrolet Silverado2021 GMC Canyon2021 GMC Savana2021 GMC Sierra2020 Cadillac CT42020 Chevrolet Camaro2020 Chevrolet Colorado+ 53 more
  Associated Documents

  • DownloadMC-10211684-0001.pdf↗
• May 5, 2022•Document ID: 10213786

  Service Bulletin/Repair Instructions
  FUEL SYSTEM, GASOLINE

  Mfr Comm. #:

  PIP5851

  Date Added:

  June 13, 2022

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates to technicians a replacement DEF tank may have been assembled with the incorrect harness.

  Associated Products (6)

  2022 Chevrolet Silverado2022 GMC Sierra2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10213786-0001.pdf↗
• May 2, 2022•Document ID: 10213779

  Service Bulletin/Repair Instructions
  BACK OVER PREVENTION; STEERING

  Mfr Comm. #:

  PIT5809C

  Date Added:

  June 13, 2022

  Manufacturer:

  GMC

  Summary

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

  Associated Products (6)

  2022 Chevrolet Silverado2022 GMC Sierra2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10213779-0001.pdf↗
• May 2, 2022•Document ID: 10211658

  Service Bulletin/Repair Instructions
  EQUIPMENT:ELECTRICAL; ENGINE

  Mfr Comm. #:

  12-00-89-003B

  Date Added:

  May 10, 2022

  Manufacturer:

  BUICK

  Summary

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

  Associated Products (935)

  2023 Chevrolet Corvette2022 Buick Enclave2022 Buick Encore2022 Buick Encore GX2022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 Cadillac Escalade2022 Cadillac Escalade ESV2022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet Blazer2022 Chevrolet Bolt EUV2022 Chevrolet Bolt EV2022 Chevrolet Camaro2022 Chevrolet Colorado2022 Chevrolet Corvette2022 Chevrolet Equinox2022 Chevrolet Express+ 915 more
  Associated Documents

  • DownloadMC-10211658-0001.pdf↗
• April 28, 2022•Document ID: 10211781

  Service Bulletin/Repair Instructions
  STRUCTURE:BODY:TAILGATE:HINGE AND ATTACHMENTS

  Mfr Comm. #:

  PIT5909

  Date Added:

  May 16, 2022

  Manufacturer:

  GMC

  Summary

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

  Associated Products (6)

  2022 Chevrolet Silverado2022 GMC Sierra2021 Chevrolet Silverado2021 GMC Sierra2020 GMC Sierra2019 GMC Sierra
  Associated Documents

  • DownloadMC-10211781-0001.pdf↗