Chevrolet Silverado Service Bulletins (2021)

1,748 manufacturer communications on file.

• July 22, 2024•Document ID: 11006282

  Service Bulletin/Repair Instructions
  WHEELS

  Mfr Comm. #:

  00-03-10-002M

  Date Added:

  August 13, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information on Chemical Staining, Pitting, Corrosion and/or Spotted Appearance of Chromed Aluminum Wheels.

  Associated Products (559)

  2025 Buick Enclave2025 Buick Encore2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac XT52025 Cadillac XT62025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Trailblazer2025 Chevrolet Traverse2025 Chevrolet Trax2025 GMC Acadia2025 GMC Hummer EV Pickup2025 GMC Terrain2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision+ 539 more
  Associated Documents

  • DownloadMC-11006282-0001.pdf↗
• July 18, 2024•Document ID: 11005345

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  21-NA-238

  Date Added:

  July 31, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This technical bulletin provides a procedure to inspect the front pump of the transmission for a possible leak.

  Associated Products (10)

  2024 Chevrolet Silverado2024 GMC Sierra2023 Chevrolet Silverado2023 GMC Sierra2022 Chevrolet Silverado2022 GMC Sierra2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-11005345-0001.pdf↗
• July 18, 2024•Document ID: 11005351

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  23-NA-142

  Date Added:

  July 31, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This technical bulletin provides a procedure for the techs to replace the forward check ball and separator plate if found the cause of the customers concern of No Forward Gear When Shifting from Park to Drive and/or Reverse to Drive.

  Associated Products (129)

  2023 Chevrolet 4500HD2023 Chevrolet Camaro2023 Chevrolet Colorado2023 Chevrolet Corvette2023 Chevrolet Express2023 Chevrolet Silverado2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 GMC Canyon2023 GMC Savana2023 GMC Sierra2023 GMC Yukon2023 GMC Yukon XL2022 Chevrolet 35002022 Chevrolet 45002022 Chevrolet 4500HD2022 Chevrolet 4500XD2022 Chevrolet Camaro2022 Chevrolet Colorado2022 Chevrolet Corvette+ 109 more
  Associated Documents

  • DownloadMC-11005351-0001.pdf↗
• July 17, 2024•Document ID: 11005341

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  20-NA-203

  Date Added:

  July 30, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This informational bulletin explains how the regen works for the DEF system and how it works at different levels.

  Associated Products (15)

  2025 Chevrolet Silverado2024 Chevrolet Silverado2024 GMC Sierra2023 Chevrolet Silverado2023 GMC Sierra2022 Chevrolet Silverado2022 GMC Sierra2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra2018 Chevrolet Silverado2018 GMC Sierra
  Associated Documents

  • DownloadMC-11005341-0001.pdf↗
• July 17, 2024•Document ID: 11005339

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  17-NA-157

  Date Added:

  July 30, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin explains the difference in oil filters for gas engines with new oil pump control systems and the possibilities of what may happen using the incorrect filter.

  Associated Products (518)

  2025 Chevrolet Silverado2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac XT42024 Cadillac XT52024 Cadillac XT62024 Chevrolet Blazer2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Express2024 Chevrolet Malibu2024 Chevrolet Silverado+ 498 more
  Associated Documents

  • DownloadMC-11005339-0001.pdf↗
• July 11, 2024•Document ID: 11004999

  Service Bulletin/Repair Instructions
  SERVICE BRAKES

  Mfr Comm. #:

  21-NA-089

  Date Added:

  July 22, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This technical bulletin provides a procedure to replace the rear calipers if found packed for of mud and debris.

  Associated Products (12)

  2024 Chevrolet Silverado2024 GMC Sierra2023 Chevrolet Silverado2023 GMC Sierra2022 Chevrolet Silverado2022 GMC Sierra2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-11004999-0001.pdf↗
• July 10, 2024•Document ID: 11005254

  Service Bulletin/Repair Instructions
  ENGINE; ELECTRICAL SYSTEM

  Mfr Comm. #:

  24-NA-124

  Date Added:

  July 26, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This technical bulletin provides repair information to correct a customer concern of Malfunction Indicator Lamp Illuminated, Stall, or No Start with DTC P2534, U3023, P0700, P129D, P10DB (w/ L5P Diesel), P103B, P17E0.

  Associated Products (10)

  2024 Chevrolet Silverado2024 GMC Sierra2023 Chevrolet Silverado2023 GMC Sierra2022 Chevrolet Silverado2022 GMC Sierra2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-11005254-0001.pdf↗
• July 10, 2024•Document ID: 11004996

  Service Bulletin/Repair Instructions
  ENGINE; ELECTRICAL SYSTEM

  Mfr Comm. #:

  23-NA-002

  Date Added:

  July 22, 2024

  Manufacturer:

  GMC

  Summary

  This technical bulletin provides repair information to correct a customer concern of Charge Air Cooler (CAC) Icing, Check Engine Lamp Illuminated, Possible P0299, P2227, and/or P0300 DTCs Set.

  Associated Products (10)

  2023 Chevrolet Silverado2023 GMC Sierra2022 Chevrolet Silverado2022 GMC Sierra2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-11004996-0001.pdf↗
• July 10, 2024•Document ID: 11004989

  Service Bulletin/Repair Instructions
  SUSPENSION

  Mfr Comm. #:

  20-NA-022

  Date Added:

  July 20, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This technical bulletin provides a procedure to re-torque the leaf spring u bolts to correct a condition of Clunking Noise from Rear of Vehicle (Re-torque Leaf Spring Bolts).

  Associated Products (10)

  2024 Chevrolet Silverado2024 GMC Sierra2023 Chevrolet Silverado2023 GMC Sierra2022 Chevrolet Silverado2022 GMC Sierra2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-11004989-0001.pdf↗
• July 9, 2024•Document ID: 11005189

  Service Bulletin/Repair Instructions
  SUSPENSION

  Mfr Comm. #:

  19-NA-129

  Date Added:

  July 24, 2024

  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 (12)

  2024 Chevrolet Silverado2024 GMC Sierra2023 Chevrolet Silverado2023 GMC Sierra2022 Chevrolet Silverado2022 GMC Sierra2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-11005189-0001.pdf↗
• July 9, 2024•Document ID: 11004990

  Service Bulletin/Repair Instructions
  SUSPENSION

  Mfr Comm. #:

  21-NA-138

  Date Added:

  July 20, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides a repair procedure to correct a customer concern of a Squeak, Grind or Clunking Noise from Rear Leaf Springs.

  Associated Products (10)

  2024 Chevrolet Silverado2023 Chevrolet Silverado2022 Chevrolet Silverado2021 Chevrolet Silverado2020 Chevrolet Silverado2019 Chevrolet Silverado2018 Chevrolet Silverado2017 Chevrolet Silverado2016 Chevrolet Silverado2015 Chevrolet Silverado
  Associated Documents

  • DownloadMC-11004990-0001.pdf↗
• July 9, 2024•Document ID: 11005311

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  99-04-20-002O

  Date Added:

  July 30, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal operation.

  Associated Products (638)

  2025 Chevrolet Silverado2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Lyriq2024 Cadillac XT42024 Cadillac XT52024 Cadillac XT62024 Chevrolet Blazer2024 Chevrolet Bolt EV2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Express+ 618 more
  Associated Documents

  • DownloadMC-11005311-0001.pdf↗
• July 9, 2024•Document ID: 11005020

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  16-NA-019

  Date Added:

  July 23, 2024

  Manufacturer:

  GMC

  Summary

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

  Associated Products (91)

  2024 Cadillac CT42024 Chevrolet Colorado2024 Chevrolet Silverado2024 GMC Canyon2024 GMC Sierra2023 Cadillac CT42023 Chevrolet Camaro2023 Chevrolet Colorado2023 Chevrolet Express2023 Chevrolet Silverado2023 GMC Canyon2023 GMC Savana2023 GMC Sierra2022 Cadillac CT42022 Chevrolet Camaro2022 Chevrolet Colorado2022 Chevrolet Equinox2022 Chevrolet Express2022 Chevrolet Silverado2022 GMC Canyon+ 71 more
  Associated Documents

  • DownloadMC-11005020-0001.pdf↗
• June 29, 2024•Document ID: 11004727

  Service Bulletin/Repair Instructions
  FUEL/PROPULSION SYSTEM

  Mfr Comm. #:

  04-06-04-051I

  Date Added:

  July 16, 2024

  Manufacturer:

  GMC

  Summary

  This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.

  Associated Products (790)

  2025 Buick Enclave2025 Buick Encore2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac XT52025 Cadillac XT62025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Trailblazer2025 Chevrolet Traverse2025 Chevrolet Trax2025 GMC Acadia2025 GMC Hummer EV Pickup2025 GMC Terrain2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision+ 770 more
  Associated Documents

  • DownloadMC-11004727-0001.pdf↗
• June 28, 2024•Document ID: 11004941

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  24-NA-123

  Date Added:

  July 18, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin advises the technician that the purge pump part number has changed and limited supply.

  Associated Products (73)

  2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac XT52025 Chevrolet Trailblazer2025 Chevrolet Traverse2025 Chevrolet Trax2025 GMC Acadia2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac XT42024 Cadillac XT52024 Chevrolet Blazer2024 Chevrolet Colorado2024 Chevrolet Silverado2024 Chevrolet Trailblazer2024 Chevrolet Traverse+ 53 more
  Associated Documents

  • DownloadMC-11004941-0001.pdf↗
• June 28, 2024•Document ID: 11004761

  Service Bulletin/Repair Instructions
  FUEL/PROPULSION SYSTEM; ENGINE

  Mfr Comm. #:

  16-NA-383

  Date Added:

  July 16, 2024

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build-up.

  Associated Products (1010)

  2025 Buick Enclave2025 Buick Encore2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac XT52025 Cadillac XT62025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Trailblazer2025 Chevrolet Traverse2025 Chevrolet Trax2025 GMC Acadia2025 GMC Terrain2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista+ 990 more
  Associated Documents

  • DownloadMC-11004761-0001.pdf↗
• June 25, 2024•Document ID: 11004935

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; EXTERIOR LIGHTING

  Mfr Comm. #:

  24-NA-115

  Date Added:

  July 18, 2024

  Manufacturer:

  CHEVROLET

  Summary

  Information on Low Beam Headlamp Bulb Diagnosis/Replacement (Inspect Bulb and Connector).

  Associated Products (7)

  2025 Chevrolet Silverado2024 Chevrolet Silverado2023 Chevrolet Silverado2022 Chevrolet Silverado2021 Chevrolet Silverado2020 Chevrolet Silverado2019 Chevrolet Silverado
  Associated Documents

  • DownloadMC-11004935-0001.pdf↗
• June 18, 2024•Document ID: 11004624

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  22-NA-070

  Date Added:

  July 12, 2024

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides information for replacement parts traceability (RPT) process to aid in tracking part replacements.

  Associated Products (438)

  2025 Buick Enclave2025 Buick Encore2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac XT52025 Cadillac XT62025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Trailblazer2025 Chevrolet Traverse2025 Chevrolet Trax2025 GMC Acadia2025 GMC Hummer EV Pickup2025 GMC Terrain2024 BrightDrop Zevo2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX+ 418 more
  Associated Documents

  • DownloadMC-11004624-0001.pdf↗
• June 17, 2024•Document ID: 11004657

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  24-NA-108

  Date Added:

  July 12, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides a procedure to correct radio software concerns.

  Associated Products (51)

  2024 Buick Enclave2024 Cadillac XT52024 Cadillac XT62023 Buick Enclave2023 Buick Encore GX2023 Cadillac XT42023 Cadillac XT52023 Cadillac XT62023 Chevrolet Blazer2023 Chevrolet Bolt EUV2023 Chevrolet Bolt EV2023 Chevrolet Camaro2023 Chevrolet Corvette2023 Chevrolet Equinox2023 Chevrolet Malibu2023 Chevrolet Silverado2023 Chevrolet Trailblazer2023 Chevrolet Traverse2023 GMC Acadia2023 GMC Sierra+ 31 more
  Associated Documents

  • DownloadMC-11004657-0001.pdf↗
• June 17, 2024•Document ID: 11004558

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  22-NA-018

  Date Added:

  July 12, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information for the Global Warranty Management (GWM) Warranty Parts Center (WPC) Part Photo Return Process (U.S. Dealers Only).

  Associated Products (398)

  2025 Buick Enclave2025 Buick Encore2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac XT52025 Cadillac XT62025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Trailblazer2025 Chevrolet Traverse2025 Chevrolet Trax2025 GMC Acadia2025 GMC Hummer EV Pickup2025 GMC Terrain2024 BrightDrop Zevo2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX+ 378 more
  Associated Documents

  • DownloadMC-11004558-0001.pdf↗