GMC Sierra Service Bulletins (2020)

1,991 manufacturer communications on file.

• January 28, 2025•Document ID: 11014161

  Service Bulletin/Repair Instructions
  FUEL/PROPULSION SYSTEM; ENGINE

  Mfr Comm. #:

  PIE0812

  Date Added:

  February 11, 2025

  Manufacturer:

  GMC

  Summary

  This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regard to the vehicle having loss of power and/or having the MIL illuminated on the Driver Information Center (DIC).

  Associated Products (10)

  2021 Cadillac Escalade2021 Cadillac Escalade ESV2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Sierra2021 GMC Yukon2021 GMC Yukon XL2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-11014161-0001.pdf↗
• January 28, 2025•Document ID: 11013150

  Service Campaign
  POWER TRAIN

  Mfr Comm. #:

  N242454441-02

  Date Added:

  January 28, 2025

  Manufacturer:

  CHEVROLET

  Summary

  Certain vehicles listed above, may have a condition where the transmission control valve has worn, resulting in a gradual loss of pressure within the valve. The effects can cause harsh shifting, setting a service engine soon message, reduced engine performance or P0747 diagnostic trouble code. This special coverage covers the condition described above for a period of 15 years or 150,000 miles (240,000km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. For vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after November 26, 2024, are covered by this special coverage and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to November 26, 2024, must be submitted to the Service Contract provider. Vehicle owners or lessees who paid for repairs referenced in this Special Coverage (“Customers”) are eligible for reimbursement of their reasonable and customary expenses in accordance with the procedures specified below. The conditional right to reimbursement is provided by GM solely in the interest of customer satisfaction and is personal to Customers. Customers may not assign and GM does not consent to any assignment of any Customer’s right to submit reimbursement claims, or to receive reimbursement, or any other rights granted by this Special Coverage to any third party, including but not limited to service contract providers, and this Special Coverage is not intended to and does not confer any third party beneficiary, subrogation or contribution rights, or any other rights to reimbursement, against GM, whether in law, equity or otherwise, on any third parties. Dealers are to install a new control valve body. The repairs will be made at no charge to the customer.

  Associated Products (18)

  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 Sierra
  Associated Documents

  • DownloadMC-11013150-0001.pdf↗
• January 27, 2025•Document ID: 11014170

  Service Bulletin/Repair Instructions
  EXTERIOR LIGHTING

  Mfr Comm. #:

  01-08-42-001Q

  Date Added:

  February 11, 2025

  Manufacturer:

  GMC

  Summary

  This service bulletin provides information on Exterior Lamp Condensation and Water Leak Information and Replacement Guidelines.

  Associated Products (418)

  2025 Buick Enclave2025 Buick Encore2025 Buick Encore GX2025 Buick Envision2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac Optiq2025 Cadillac XT42025 Cadillac XT52025 Cadillac XT62025 Chevrolet Blazer2025 Chevrolet Colorado2025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Malibu+ 398 more
  Associated Documents

  • DownloadMC-11014170-0001.pdf↗
• January 24, 2025•Document ID: 11013473

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT5544H

  Date Added:

  February 3, 2025

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates information on a hydrauilc rush type noise from the power steering gear. This noise is a characteristic of the new Active Hydraulic Assist System RPO NV8 and no repairs should be made.  The noise is most noticeable in the cab at idle, in park, with all accessories turned off.

  Associated Products (20)

  2025 Chevrolet Silverado2025 GMC Sierra2024 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 Sierra2017 Chevrolet Silverado2017 GMC Sierra2016 Chevrolet Silverado2016 GMC Sierra
  Associated Documents

  • DownloadMC-11013473-0001.pdf↗
• January 23, 2025•Document ID: 11013650

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; ENGINE

  Mfr Comm. #:

  22-NA-210

  Date Added:

  February 5, 2025

  Manufacturer:

  GMC

  Summary

  This technical bulletin provides a procedure to locate and repair a broken ground stud at the NOx converter.

  Associated Products (6)

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

  • DownloadMC-11013650-0001.pdf↗
• January 23, 2025•Document ID: 11013639

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; WHEELS

  Mfr Comm. #:

  22-NA-172

  Date Added:

  February 5, 2025

  Manufacturer:

  GMC

  Summary

  This technical bulletin provides repair information to correct a customer concern of Trailer Tire Pressure Only Reading Up To 100 PSI, New Parts To Increase To 147 PSI.

  Associated Products (6)

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

  • DownloadMC-11013639-0001.pdf↗
• January 23, 2025•Document ID: 11013352

  Service Bulletin/Repair Instructions
  STRUCTURE:BODY

  Mfr Comm. #:

  17-NA-350

  Date Added:

  February 1, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This informational bulletin provides explanation of a normal condition of a loose fitting trailer hitch receiver in the gooseneck hitch ball.

  Associated Products (20)

  2025 Chevrolet Silverado2025 GMC Sierra2024 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 Sierra2017 Chevrolet Silverado2017 GMC Sierra2016 Chevrolet Silverado2016 GMC Sierra
  Associated Documents

  • DownloadMC-11013352-0001.pdf↗
• January 17, 2025•Document ID: 11013242

  Service Bulletin/Repair Instructions
  SERVICE BRAKES; ELECTRICAL SYSTEM

  Mfr Comm. #:

  21-NA-155

  Date Added:

  January 30, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This informational bulletin advises the technician to check for faults that may be caused by the trailer otherwise found by a possible faulty trailer connector.

  Associated Products (44)

  2025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Chevrolet Silverado2025 Chevrolet Suburban2025 Chevrolet Tahoe2025 GMC Sierra2025 GMC Yukon2025 GMC Yukon XL2024 Cadillac Escalade2024 Cadillac Escalade ESV2024 Chevrolet Silverado2024 Chevrolet Suburban2024 Chevrolet Tahoe2024 GMC Sierra2024 GMC Yukon2024 GMC Yukon XL2023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Chevrolet Silverado2023 Chevrolet Suburban+ 24 more
  Associated Documents

  • DownloadMC-11013242-0001.pdf↗
• January 16, 2025•Document ID: 11013269

  Service Bulletin/Repair Instructions
  STEERING; ENGINE; ELECTRICAL SYSTEM; STRUCTURE:BODY; SEATS

  Mfr Comm. #:

  24-NA-239

  Date Added:

  January 30, 2025

  Manufacturer:

  GMC

  Summary

  This informational bulletin provides a guide on how to diagnose and test for vibrations utilizing the PicoScope.

  Associated Products (155)

  2025 Buick Enclave2025 Buick Encore GX2025 Buick Envision2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac XT42025 Cadillac XT52025 Cadillac XT62025 Chevrolet Blazer2025 Chevrolet Colorado2025 Chevrolet Silverado2025 Chevrolet Suburban2025 Chevrolet Tahoe2025 Chevrolet Traverse2025 GMC Acadia2025 GMC Canyon2025 GMC Savana+ 135 more
  Associated Documents

  • DownloadMC-11013269-0001.pdf↗
• January 15, 2025•Document ID: 11013235

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  18-NA-011

  Date Added:

  January 30, 2025

  Manufacturer:

  GMC

  Summary

  Informational bulletin explaining how a plow may cause overheating and engine damage when traveling over 45 mph.

  Associated Products (18)

  2025 Chevrolet Silverado2025 GMC Sierra2024 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 Sierra2017 Chevrolet Silverado2017 GMC Sierra
  Associated Documents

  • DownloadMC-11013235-0001.pdf↗
• January 15, 2025•Document ID: 11013255

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; ENGINE

  Mfr Comm. #:

  22-NA-150

  Date Added:

  January 30, 2025

  Manufacturer:

  CADILLAC

  Summary

  This technical bulletin provides a procedure to program the Reductant Control Module and Setup and Perform the Reductant Fluid Tank Level Reset.

  Associated Products (42)

  2025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Chevrolet Silverado2025 Chevrolet Suburban2025 Chevrolet Tahoe2025 GMC Sierra2025 GMC Yukon2025 GMC Yukon XL2024 Cadillac Escalade2024 Cadillac Escalade ESV2024 Chevrolet Silverado2024 Chevrolet Suburban2024 Chevrolet Tahoe2024 GMC Sierra2024 GMC Yukon2024 GMC Yukon XL2023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Chevrolet Silverado2023 Chevrolet Suburban+ 22 more
  Associated Documents

  • DownloadMC-11013255-0001.pdf↗
• January 10, 2025•Document ID: 11012973

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6177B

  Date Added:

  January 20, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates an issues of the left rear leaf spring making a squeaking noise due to diesel fuel contamination that may occur during refueling after the fuel nozzle is removed from the fuel filler pipe.  Dealers are to create a foam seal around the fuel filler pipe to prevent fuel from leaking onto the left spring.

  Associated Products (12)

  2025 Chevrolet Silverado2025 GMC Sierra2024 Chevrolet Silverado2024 GMC Sierra2023 Chevrolet Silverado2023 GMC Sierra2022 Chevrolet Silverado2022 GMC Sierra2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-11012973-0001.pdf↗
• January 10, 2025•Document ID: 11013082

  Service Bulletin/Repair Instructions
  ENGINE; ELECTRICAL SYSTEM

  Mfr Comm. #:

  24-NA-173

  Date Added:

  January 24, 2025

  Manufacturer:

  GMC

  Summary

  This bulletin advises the technician that if the code sets, verify the sensor then inspect the engine oil pump for a sticking valve that may cause the MIL to illuminate.

  Associated Products (44)

  2024 Cadillac Escalade2024 Cadillac Escalade ESV2024 Chevrolet Silverado2024 Chevrolet Suburban2024 Chevrolet Tahoe2024 GMC Sierra2024 GMC Yukon2024 GMC Yukon XL2023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Chevrolet Silverado2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 GMC Sierra2023 GMC Yukon2023 GMC Yukon XL2022 Cadillac Escalade2022 Cadillac Escalade ESV2022 Chevrolet Silverado2022 Chevrolet Suburban+ 24 more
  Associated Documents

  • DownloadMC-11013082-0001.pdf↗
• January 9, 2025•Document ID: 11013069

  Service Bulletin/Repair Instructions
  POWER TRAIN; ELECTRICAL SYSTEM; ENGINE

  Mfr Comm. #:

  09-06-04-026Z

  Date Added:

  January 23, 2025

  Manufacturer:

  GMC

  Summary

  This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.

  Associated Products (510)

  2025 Buick Enclave2025 Buick Encore2025 Buick Encore GX2025 Buick Envision2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac XT42025 Cadillac XT52025 Cadillac XT62025 Chevrolet Blazer2025 Chevrolet Colorado2025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Malibu2025 Chevrolet Silverado2025 Chevrolet Suburban2025 Chevrolet Tahoe+ 490 more
  Associated Documents

  • DownloadMC-11013069-0001.pdf↗
• January 9, 2025•Document ID: 11013027

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  22-NA-218

  Date Added:

  January 23, 2025

  Manufacturer:

  CADILLAC

  Summary

  This informational bulletin advises the technician on normal noises produced by the engine and to explain this to the customer.

  Associated Products (56)

  2025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Chevrolet Silverado2025 Chevrolet Suburban2025 Chevrolet Tahoe2025 GMC Sierra2025 GMC Yukon2025 GMC Yukon XL2024 Cadillac Escalade2024 Cadillac Escalade ESV2024 Chevrolet Silverado2024 Chevrolet Suburban2024 Chevrolet Tahoe2024 GMC Sierra2024 GMC Yukon2024 GMC Yukon XL2023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Chevrolet Silverado2023 Chevrolet Suburban+ 36 more
  Associated Documents

  • DownloadMC-11013027-0001.pdf↗
• January 9, 2025•Document ID: 11012938

  Service Bulletin/Repair Instructions
  SERVICE BRAKES

  Mfr Comm. #:

  PIT5828D

  Date Added:

  January 20, 2025

  Manufacturer:

  GMC

  Summary

  This Preliminary Information communication provides information to the technician about customers that may request the factory Integrated Trailer Brake Controller Regular Production Option Code (JL1) be installed on their Full-Size Pickup or SUV when the vehicle was not ordered with the option. Dealer should advise the customer it cannot be added to the vehicle.

  Associated Products (34)

  2025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Chevrolet Silverado2025 GMC Sierra2025 GMC Yukon2025 GMC Yukon XL2024 Cadillac Escalade2024 Cadillac Escalade ESV2024 Chevrolet Silverado2024 GMC Sierra2024 GMC Yukon2024 GMC Yukon XL2023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Chevrolet Silverado2023 GMC Sierra2023 GMC Yukon2023 GMC Yukon XL2022 Cadillac Escalade2022 Cadillac Escalade ESV+ 14 more
  Associated Documents

  • DownloadMC-11012938-0001.pdf↗
• January 8, 2025•Document ID: 11013070

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  20-NA-166

  Date Added:

  January 23, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin advises the technician of possible coolant entering the areas of the engine, either through failed parts or defects in the castings, that may be the cause of the concerns related to the MIL or the engine running rough.

  Associated Products (117)

  2025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Chevrolet Corvette2025 Chevrolet Silverado2025 Chevrolet Suburban2025 Chevrolet Tahoe2025 GMC Sierra2025 GMC Yukon2025 GMC Yukon XL2024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Escalade ESV2024 Chevrolet Camaro2024 Chevrolet Corvette2024 Chevrolet Silverado2024 Chevrolet Suburban2024 Chevrolet Tahoe2024 GMC Sierra2024 GMC Yukon+ 97 more
  Associated Documents

  • DownloadMC-11013070-0001.pdf↗
• January 7, 2025•Document ID: 11012932

  Service Bulletin/Repair Instructions
  SERVICE BRAKES

  Mfr Comm. #:

  PIT6134G

  Date Added:

  January 20, 2025

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates an issue with premature brake pad life and engineering is working on release new pad lining material.

  Associated Products (8)

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

  • DownloadMC-11012932-0001.pdf↗
• January 7, 2025•Document ID: 11012929

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  20-NA-132

  Date Added:

  January 18, 2025

  Manufacturer:

  CADILLAC

  Summary

  This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

  Associated Products (501)

  2025 Buick Enclave2025 Buick Encore2025 Buick Encore GX2025 Buick Envision2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac Optiq2025 Cadillac XT42025 Cadillac XT52025 Cadillac XT62025 Chevrolet Blazer2025 Chevrolet BrightDrop2025 Chevrolet Colorado2025 Chevrolet Corvette2025 Chevrolet Equinox+ 481 more
  Associated Documents

  • DownloadMC-11012929-0001.pdf↗
• January 4, 2025•Document ID: 11012930

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  07-00-89-037U

  Date Added:

  January 18, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This warranty administration bulletin provides policy information for GM courtesy transportation and roadside assistance programs.

  Associated Products (501)

  2025 Buick Enclave2025 Buick Encore2025 Buick Encore GX2025 Buick Envision2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac Optiq2025 Cadillac XT42025 Cadillac XT52025 Cadillac XT62025 Chevrolet Blazer2025 Chevrolet BrightDrop2025 Chevrolet Colorado2025 Chevrolet Corvette2025 Chevrolet Equinox+ 481 more
  Associated Documents

  • DownloadMC-11012930-0001.pdf↗