Chevrolet Silverado Service Bulletins (2021)

1,748 manufacturer communications on file.

• May 12, 2021•Document ID: 10199234

  Service Bulletin/Repair Instructions
  LATCHES/LOCKS/LINKAGES; ELECTRICAL SYSTEM

  Mfr Comm. #:

  18NA279

  Date Added:

  July 19, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information for dealers/technicians on the process to disable and enable passive unlocking.

  Associated Products (74)

  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 Blazer2021 Chevrolet Camaro2021 Chevrolet Malibu2021 Chevrolet Silverado2021 Chevrolet Spark2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 Chevrolet Trailblazer2021 Chevrolet Traverse+ 54 more
  Associated Documents

  • DownloadMC-10199234-0001.pdf↗
• May 12, 2021•Document ID: 10198843

  Service Bulletin/Repair Instructions
  LATCHES/LOCKS/LINKAGES

  Mfr Comm. #:

  18NA279

  Date Added:

  July 6, 2021

  Manufacturer:

  BUICK

  Summary

  This service bulletin provides information for dealers/technicians on the process to disable and enable passive unlocking.

  Associated Products (74)

  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 Blazer2021 Chevrolet Camaro2021 Chevrolet Malibu2021 Chevrolet Silverado2021 Chevrolet Spark2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 Chevrolet Trailblazer2021 Chevrolet Traverse+ 54 more
  Associated Documents

  • DownloadMC-10198843-0001.pdf↗
• May 11, 2021•Document ID: 10200103

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIE0623

  Date Added:

  August 9, 2021

  Manufacturer:

  CADILLAC

  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 Malfunction Indicator Lamp illuminated on the Driver Information Center (DIC).

  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-10200103-0001.pdf↗
• May 11, 2021•Document ID: 10197321

  Service Bulletin/Repair Instructions
  SERVICE BRAKES, HYDRAULIC

  Mfr Comm. #:

  N212330660

  Date Added:

  June 14, 2021

  Manufacturer:

  CHEVROLET

  Summary

  Service Update Bulletin. Certain vehicles may have an erratic signal coming from the engine manifold absolute pressure (MAP) sensor. Customers may notice the service engine soon (SES) lamp illuminate or was illuminated and turned off. DTC?s P0106 and P0108 may also be present as active or stored in history. Dealers will replace the MAP sensor.

  Associated Products (8)

  2021 Cadillac Escalade2021 Cadillac Escalade ESV2021 Chevrolet Express2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Savana2021 GMC Sierra
  Associated Documents

  • DownloadMC-10197321-0001.pdf↗
• May 10, 2021•Document ID: 10199269

  Service Bulletin/Repair Instructions
  STRUCTURE:BODY:DOOR; STRUCTURE

  Mfr Comm. #:

  21NA101

  Date Added:

  July 19, 2021

  Manufacturer:

  GMC

  Summary

  This service bulletin provides a procedure to replace both front door seals to correct a customer concern of Howl, Hoot, or Whistle Type Noise when Driving in Crosswinds.

  Associated Products (4)

  2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10199269-0001.pdf↗
• May 10, 2021•Document ID: 10198878

  Service Bulletin/Repair Instructions
  STRUCTURE

  Mfr Comm. #:

  21NA101

  Date Added:

  July 6, 2021

  Manufacturer:

  GMC

  Summary

  This service bulletin provides a procedure to replace both front door seals to correct a customer concern of Howl, Hoot, or Whistle Type Noise when Driving in Crosswinds.

  Associated Products (4)

  2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10198878-0001.pdf↗
• May 10, 2021•Document ID: 10197289

  Service Bulletin/Repair Instructions
  VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:CONDENSOR/EVAPORATOR; VISIBILITY; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM

  Mfr Comm. #:

  PIT5767A

  Date Added:

  June 14, 2021

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates an issue with poor a/c performance and to replace the a/c condenser.

  Associated Products (6)

  2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10197289-0001.pdf↗
• May 10, 2021•Document ID: 10197290

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  PIP5805

  Date Added:

  June 14, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates that the performance air cleaner kit (cold air intake system) can only be installed on vehicles that had the option ordered for the vehicle when it was produced. This performance air filter kit can not be installed on vehicles that were not ordered / produced with this option. This document also reinforces, the vehicles that did have the kit ordered and installed, a calibration is needed to make the kit work properly or DTC's may set.

  Associated Products (7)

  2021 Cadillac Escalade ESV2021 Chevrolet Camaro2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Sierra2021 GMC Yukon
  Associated Documents

  • DownloadMC-10197290-0001.pdf↗
• May 7, 2021•Document ID: 10200091

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  120851002L

  Date Added:

  August 9, 2021

  Manufacturer:

  GMC

  Summary

  This informational bulletin provides technicians and dealership personnel with spray-in bed liner general information and repair procedures.

  Associated Products (30)

  2021 Chevrolet Colorado2021 Chevrolet Silverado2021 GMC Canyon2021 GMC Sierra2020 Chevrolet Colorado2020 Chevrolet Silverado2020 GMC Canyon2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra2018 Chevrolet Colorado2018 Chevrolet Silverado2018 GMC Canyon2018 GMC Sierra2017 Chevrolet Colorado2017 Chevrolet Silverado2017 GMC Canyon2017 GMC Sierra2016 Chevrolet Colorado2016 Chevrolet Silverado+ 10 more
  Associated Documents

  • DownloadMC-10200091-0001.pdf↗
• May 7, 2021•Document ID: 10199253

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  20NA218

  Date Added:

  July 19, 2021

  Manufacturer:

  CHEVROLET

  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 (28)

  2021 Buick Encore GX2021 Cadillac Escalade2021 Cadillac Escalade ESV2021 Chevrolet Camaro2021 Chevrolet Equinox2021 Chevrolet Malibu2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 Chevrolet Trailblazer2021 GMC Acadia2021 GMC Sierra2021 GMC Terrain2021 GMC Yukon2021 GMC Yukon XL2020 Buick Encore GX2020 Buick Regal2020 Cadillac CT52020 Chevrolet Corvette2020 Chevrolet Equinox+ 8 more
  Associated Documents

  • DownloadMC-10199253-0001.pdf↗
• May 7, 2021•Document ID: 10198862

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  20NA218

  Date Added:

  July 6, 2021

  Manufacturer:

  CHEVROLET

  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 (28)

  2021 Buick Encore GX2021 Cadillac Escalade2021 Cadillac Escalade ESV2021 Chevrolet Camaro2021 Chevrolet Equinox2021 Chevrolet Malibu2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 Chevrolet Trailblazer2021 GMC Acadia2021 GMC Sierra2021 GMC Terrain2021 GMC Yukon2021 GMC Yukon XL2020 Buick Encore GX2020 Buick Regal2020 Cadillac CT52020 Chevrolet Corvette2020 Chevrolet Equinox+ 8 more
  Associated Documents

  • DownloadMC-10198862-0001.pdf↗
• May 7, 2021•Document ID: 10197284

  Service Bulletin/Repair Instructions
  EQUIPMENT; EQUIPMENT:APPLIANCE:TV/RADIO/SPEAKERS

  Mfr Comm. #:

  PIT5839A

  Date Added:

  June 14, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates to GM dealers that the above mentioned concern is software related and that General Motors is working on a solution.

  Associated Products (18)

  2021 Chevrolet Colorado2021 Chevrolet Equinox2021 Chevrolet Silverado2021 Chevrolet Trax2021 GMC Canyon2021 GMC Sierra2021 GMC Terrain2020 Chevrolet Blazer2020 Chevrolet Camaro2020 Chevrolet Colorado2020 Chevrolet Equinox2020 Chevrolet Malibu2020 Chevrolet Silverado2020 Chevrolet Sonic2020 Chevrolet Trax2020 GMC Canyon2020 GMC Sierra2020 GMC Terrain
  Associated Documents

  • DownloadMC-10197284-0001.pdf↗
• May 6, 2021•Document ID: 10199272

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  21NA110

  Date Added:

  July 19, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This informational bulletin provides information for dealers/technicians on Information on GM Accessories - Instructions on Claim Submission on Dealer-Replaced Tonneau Covers During Warranty Period.

  Associated Products (6)

  2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10199272-0001.pdf↗
• May 6, 2021•Document ID: 10199237

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

  Mfr Comm. #:

  18NA361

  Date Added:

  July 19, 2021

  Manufacturer:

  GMC

  Summary

  This technical bulletin provides a procedure to flush the cooler lines to validate if there is excessive debris in the fuel system caused by a failed part.

  Associated Products (20)

  2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Cruze2019 Chevrolet Equinox2019 Chevrolet Silverado2019 GMC Sierra2019 GMC Terrain2018 Chevrolet Cruze2018 Chevrolet Equinox2018 Chevrolet Silverado2018 GMC Sierra2018 GMC Terrain2017 Chevrolet Silverado2017 GMC Sierra2016 Chevrolet Silverado2016 GMC Sierra2015 Chevrolet Cruze2014 Chevrolet Cruze
  Associated Documents

  • DownloadMC-10199237-0001.pdf↗
• May 6, 2021•Document ID: 10198881

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  21NA110

  Date Added:

  July 6, 2021

  Manufacturer:

  GMC

  Summary

  This informational bulletin provides information for dealers/technicians on Information on GM Accessories - Instructions on Claim Submission on Dealer-Replaced Tonneau Covers During Warranty Period.

  Associated Products (6)

  2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10198881-0001.pdf↗
• May 6, 2021•Document ID: 10198846

  Service Bulletin/Repair Instructions
  FUEL SYSTEM, GASOLINE

  Mfr Comm. #:

  18NA361

  Date Added:

  July 6, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This technical bulletin provides a procedure to flush the cooler lines to validate if there is excessive debris in the fuel system caused by a failed part.

  Associated Products (20)

  2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Cruze2019 Chevrolet Equinox2019 Chevrolet Silverado2019 GMC Sierra2019 GMC Terrain2018 Chevrolet Cruze2018 Chevrolet Equinox2018 Chevrolet Silverado2018 GMC Sierra2018 GMC Terrain2017 Chevrolet Silverado2017 GMC Sierra2016 Chevrolet Silverado2016 GMC Sierra2015 Chevrolet Cruze2014 Chevrolet Cruze
  Associated Documents

  • DownloadMC-10198846-0001.pdf↗
• May 6, 2021•Document ID: 10199249

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  20NA159

  Date Added:

  July 19, 2021

  Manufacturer:

  CADILLAC

  Summary

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

  Associated Products (353)

  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 Blazer2021 Chevrolet Bolt EV2021 Chevrolet Camaro2021 Chevrolet Colorado2021 Chevrolet Corvette2021 Chevrolet Equinox2021 Chevrolet Express2021 Chevrolet Malibu2021 Chevrolet Silverado+ 333 more
  Associated Documents

  • DownloadMC-10199249-0001.pdf↗
• May 6, 2021•Document ID: 10198858

  Service Bulletin/Repair Instructions
  TIRES

  Mfr Comm. #:

  20NA159

  Date Added:

  July 6, 2021

  Manufacturer:

  GMC

  Summary

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

  Associated Products (353)

  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 Blazer2021 Chevrolet Bolt EV2021 Chevrolet Camaro2021 Chevrolet Colorado2021 Chevrolet Corvette2021 Chevrolet Equinox2021 Chevrolet Express2021 Chevrolet Malibu2021 Chevrolet Silverado+ 333 more
  Associated Documents

  • DownloadMC-10198858-0001.pdf↗
• May 5, 2021•Document ID: 10200097

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; ENGINE

  Mfr Comm. #:

  PIE0602B

  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-10200097-0001.pdf↗
• May 5, 2021•Document ID: 10199240

  Service Bulletin/Repair Instructions
  SUSPENSION

  Mfr Comm. #:

  19NA129

  Date Added:

  July 19, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This technical bulletin provides repair information to correct a customer concern of a squeak and/or clunking noise coming from the rear of the vehicle.

  Associated Products (6)

  2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10199240-0001.pdf↗