GMC Sierra Service Bulletins (2020)

1,991 manufacturer communications on file.

• April 15, 2025•Document ID: 11019325

  Service Bulletin/Repair Instructions
  EXTERIOR LIGHTING; STEERING

  Mfr Comm. #:

  21-NA-166

  Date Added:

  June 6, 2025

  Manufacturer:

  GMC

  Summary

  This informational bulletin provides information on the turn signal stalk not cancelling and/or mis cancelling.

  Associated Products (42)

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  Associated Documents

  • DownloadMC-11019325-0001.pdf↗
• April 12, 2025•Document ID: 11016990

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT5551R

  Date Added:

  April 15, 2025

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates a "Forward Collision System Reduced" message displayed on the DIC when the Forward Automatic Braking has been set to the "Alert" setting.  This is normal when the FAB has been set to  "Alert".

  Associated Products (232)

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  Associated Documents

  • DownloadMC-11016990-0001.pdf↗
• April 11, 2025•Document ID: 11017868

  Service Bulletin/Repair Instructions
  STEERING

  Mfr Comm. #:

  13-02-32-001H

  Date Added:

  May 6, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides a procedure to flush and bleed power steering system to correct a power steering noise or fluid leak concern that is caused during extremely low temperatures.

  Associated Products (165)

  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 Cadillac XTS2018 Chevrolet Silverado2018 Chevrolet Trax2018 GMC Sierra2017 Buick Enclave2017 Cadillac XTS+ 145 more
  Associated Documents

  • DownloadMC-11017868-0001.pdf↗
• April 10, 2025•Document ID: 11019017

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  24-NA-229

  Date Added:

  June 3, 2025

  Manufacturer:

  CADILLAC

  Summary

  This bulletin provides a procedure on how to check for a battery drain utilizing the Picoscope and how to measure the load on the system that may be causing a drain.

  Associated Products (171)

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  Associated Documents

  • DownloadMC-11019017-0001.pdf↗
• April 8, 2025•Document ID: 11017839

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  07-00-89-037W

  Date Added:

  May 5, 2025

  Manufacturer:

  GMC

  Summary

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

  Associated Products (581)

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  Associated Documents

  • DownloadMC-11017839-0001.pdf↗
• April 8, 2025•Document ID: 11016977

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT5986D

  Date Added:

  April 15, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates a diagnostic tip for a thump, click, pop, clunk type noise that is heard from the front end.   Dealers are to inspect for something contacting the grill shutters as they open and close.

  Associated Products (44)

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  Associated Documents

  • DownloadMC-11016977-0001.pdf↗
• April 3, 2025•Document ID: 11017449

  Service Bulletin/Repair Instructions
  WHEELS

  Mfr Comm. #:

  22-NA-183

  Date Added:

  May 1, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin advises the technician of a different tire/rim option that can be used to correct a customer concern of poor ride quality at highway speeds.

  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-11017449-0001.pdf↗
• April 3, 2025•Document ID: 11017595

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  25-NA-087

  Date Added:

  May 2, 2025

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides information on the proper Reflective High Temperature Heat and/or Insulating Tape to use for certain repairs, such as Wiring Harness Repairs.

  Associated Products (543)

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  Associated Documents

  • DownloadMC-11017595-0001.pdf↗
• April 2, 2025•Document ID: 11017443

  Service Bulletin/Repair Instructions
  ENGINE; ELECTRICAL SYSTEM

  Mfr Comm. #:

  21-NA-139

  Date Added:

  May 1, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides a repair procedure to correct a customer concern of a Malfunction Indicator Lamp (MIL) Illuminated - DTC P3055 Set.

  Associated Products (51)

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  Associated Documents

  • DownloadMC-11017443-0001.pdf↗
• March 31, 2025•Document ID: 11017244

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  13-08-116-001K

  Date Added:

  April 25, 2025

  Manufacturer:

  CADILLAC

  Summary

  The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them.

  Associated Products (581)

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  Associated Documents

  • DownloadMC-11017244-0001.pdf↗
• March 29, 2025•Document ID: 11017302

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  25-NA-076

  Date Added:

  April 29, 2025

  Manufacturer:

  GMC

  Summary

  This informational bulletin advises the technician that the gasket for the timing chain tensioner is not required.

  Associated Products (26)

  2025 Cadillac CT42025 Chevrolet Colorado2025 Chevrolet Silverado2025 GMC Canyon2025 GMC Sierra2024 Cadillac CT42024 Chevrolet Colorado2024 Chevrolet Silverado2024 GMC Canyon2024 GMC Sierra2023 Cadillac CT42023 Chevrolet Colorado2023 Chevrolet Silverado2023 GMC Canyon2023 GMC Sierra2022 Cadillac CT42022 Chevrolet Silverado2022 GMC Sierra2021 Cadillac CT42021 Chevrolet Silverado+ 6 more
  Associated Documents

  • DownloadMC-11017302-0001.pdf↗
• March 25, 2025•Document ID: 11017243

  Service Bulletin/Repair Instructions
  EXTERIOR LIGHTING

  Mfr Comm. #:

  07-08-42-006T

  Date Added:

  April 25, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides technicians with information on available BCM calibrations to restore bulb outage detection on vehicles produced by a second stage manufacturer (Upfitter), and/or turn signals flash fast after factory box removed.

  Associated Products (38)

  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+ 18 more
  Associated Documents

  • DownloadMC-11017243-0001.pdf↗
• March 25, 2025•Document ID: 11017263

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  25-NA-052

  Date Added:

  April 28, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This bulletin advises the technician to flush the cooling system multiple times if oil has been found in the cooling system and replace the parts that may be contaminated due to oil in system.

  Associated Products (518)

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  Associated Documents

  • DownloadMC-11017263-0001.pdf↗
• March 25, 2025•Document ID: 11017255

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

  Mfr Comm. #:

  23-NA-185

  Date Added:

  April 28, 2025

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin helps diagnose/reduce possible CCND issues on Transfer Cases - Service 4WD on DIC, Intermittent Failures, Noise Concerns, Driveline/Steering Vibration/Shudder, Intermittent DTCs/MIL Illuminated, Engagement/Disengagement/Ratcheting Concerns.

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  2025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Chevrolet Colorado2025 Chevrolet Silverado2025 Chevrolet Suburban2025 Chevrolet Tahoe2025 GMC Canyon2025 GMC Sierra2025 GMC Yukon2025 GMC Yukon XL2024 Cadillac Escalade2024 Cadillac Escalade ESV2024 Chevrolet Colorado2024 Chevrolet Silverado2024 Chevrolet Suburban2024 Chevrolet Tahoe2024 GMC Canyon2024 GMC Sierra2024 GMC Yukon2024 GMC Yukon XL+ 36 more
  Associated Documents

  • DownloadMC-11017255-0001.pdf↗
• March 25, 2025•Document ID: 11016163

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP5943A

  Date Added:

  April 1, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary Information communication advises the technician on diagnostic aids to help with the diagnosis and repair of 8 Speed Transmissions

  Associated Products (100)

  2024 Cadillac CT42024 Chevrolet Express2023 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 Canyon2022 GMC Savana2022 GMC Sierra2021 Cadillac CT4+ 80 more
  Associated Documents

  • DownloadMC-11016163-0001.pdf↗
• March 21, 2025•Document ID: 11017207

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER; ELECTRICAL SYSTEM

  Mfr Comm. #:

  24-NA-098

  Date Added:

  April 24, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491, E4492, or E6961 and resolution information.

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  Associated Documents

  • DownloadMC-11017207-0001.pdf↗
• March 21, 2025•Document ID: 11017173

  Service Bulletin/Repair Instructions
  FUEL/PROPULSION SYSTEM; SERVICE BRAKES; STEERING

  Mfr Comm. #:

  25-NA-065

  Date Added:

  April 24, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This informational bulletin instructs the tech when fuel/fluid is needed to be tested and where it can be sent for analysis.

  Associated Products (496)

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  Associated Documents

  • DownloadMC-11017173-0001.pdf↗
• March 18, 2025•Document ID: 11017051

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  24-NA-247

  Date Added:

  April 16, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This informational bulletin advises the technician of which pan to use if the LCE has been replaced and to install an aluminum pan should be used with a new LCE.

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  2025 Cadillac CT42025 Chevrolet Colorado2025 Chevrolet Silverado2025 GMC Canyon2025 GMC Sierra2024 Cadillac CT42024 Chevrolet Colorado2024 Chevrolet Silverado2024 GMC Canyon2024 GMC Sierra2023 Cadillac CT42023 Chevrolet Colorado2023 Chevrolet Silverado2023 GMC Canyon2023 GMC Sierra2022 Cadillac CT42022 Chevrolet Silverado2022 GMC Sierra2021 Cadillac CT42021 Chevrolet Silverado+ 6 more
  Associated Documents

  • DownloadMC-11017051-0001.pdf↗
• March 14, 2025•Document ID: 11017016

  Service Bulletin/Repair Instructions
  WHEELS

  Mfr Comm. #:

  08-03-10-006I

  Date Added:

  April 15, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides a procedure on how to clean and resurface aluminum wheel bead seats for vehicles that have the condition of Tire Slowly Goes Flat, Tire Air Loss, Low Tire Pressure Warning Light Illuminated, Aluminum Wheel Bead Seat Corrosion.

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  Associated Documents

  • DownloadMC-11017016-0001.pdf↗
• March 13, 2025•Document ID: 11016945

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  23-NA-073

  Date Added:

  April 10, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This technical bulletin provides repair information to correct a customer concern of Evaporative DTCs P0442, P0446, P0455 or P0449, Caused by Dust Intrusion into the Evaporative Canister.

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  Associated Documents

  • DownloadMC-11016945-0001.pdf↗