GMC Sierra Service Bulletins (2020)

1,991 manufacturer communications on file.

• February 21, 2024•Document ID: 10251704

  Service Bulletin/Repair Instructions
  FORWARD COLLISION AVOIDANCE

  Mfr Comm. #:

  PIT5551N

  Date Added:

  March 18, 2024

  Manufacturer:

  CHEVROLET

  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 (175)

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  Associated Documents

  • DownloadMC-10251704-0001.pdf↗
• February 20, 2024•Document ID: 10250774

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  21-NA-238

  Date Added:

  February 29, 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-10250774-0001.pdf↗
• February 14, 2024•Document ID: 10250582

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

  Mfr Comm. #:

  23-NA-185

  Date Added:

  February 23, 2024

  Manufacturer:

  GMC

  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.

  Associated Products (36)

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  Associated Documents

  • DownloadMC-10250582-0001.pdf↗
• February 12, 2024•Document ID: 10250747

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

  Mfr Comm. #:

  24-NA-020

  Date Added:

  February 27, 2024

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides a repair procedure to correct customer concerns of Service Emissions System Displayed on DIC, MIL Illuminated with DTC P249C and/or P20E8 Set.

  Associated Products (33)

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  Associated Documents

  • DownloadMC-10250747-0001.pdf↗
• February 7, 2024•Document ID: 10250505

  Service Bulletin/Repair Instructions
  FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL

  Mfr Comm. #:

  19-NA-044

  Date Added:

  February 21, 2024

  Manufacturer:

  BUICK

  Summary

  This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy.

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  Associated Documents

  • DownloadMC-10250505-0001.pdf↗
• February 7, 2024•Document ID: 10250503

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  16-NA-222

  Date Added:

  February 21, 2024

  Manufacturer:

  GMC

  Summary

  This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations.

  Associated Products (595)

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  Associated Documents

  • DownloadMC-10250503-0001.pdf↗
• February 6, 2024•Document ID: 10251685

  Service Bulletin/Repair Instructions
  SERVICE BRAKES

  Mfr Comm. #:

  PIT5479F

  Date Added:

  March 18, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary Information communication provides information to the technician about fluid leaking from the brake caliper piston area found during a service of the vehicle. The substance is actually excess assembly grease from the caliper boot and piston installation. This grease can be cleaned off and the rest of the service completed.

  Associated Products (82)

  2024 Cadillac Escalade2024 Chevrolet Colorado2024 Chevrolet Silverado2024 Chevrolet Suburban2024 Chevrolet Tahoe2024 GMC Canyon2024 GMC Sierra2024 GMC Yukon XL2023 Cadillac Escalade ESV2023 Chevrolet Colorado2023 Chevrolet Silverado2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 GMC Canyon2023 GMC Sierra2023 GMC Yukon XL2022 Cadillac Escalade ESV2022 Chevrolet Colorado2022 Chevrolet Silverado2022 Chevrolet Suburban+ 62 more
  Associated Documents

  • DownloadMC-10251685-0001.pdf↗
• February 5, 2024•Document ID: 10250507

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

  Mfr Comm. #:

  22-NA-150

  Date Added:

  February 23, 2024

  Manufacturer:

  CHEVROLET

  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 (35)

  2024 Cadillac Escalade2024 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 Suburban2022 Chevrolet Tahoe+ 15 more
  Associated Documents

  • DownloadMC-10250507-0001.pdf↗
• February 2, 2024•Document ID: 10251681

  Service Bulletin/Repair Instructions
  TIRES

  Mfr Comm. #:

  PIT4506G

  Date Added:

  March 18, 2024

  Manufacturer:

  GMC

  Summary

  This Preliminary Information communication provides information to the technician that some owners of Heavy Duty Trucks and Utilities may ask if they can lower their tire pressures. Tire pressures being set to the "Tire and Loading Label" will ensure the safe handling and ride characteristics of the truck and should not be lowered.

  Associated Products (54)

  2024 Chevrolet Silverado2024 GMC Sierra2023 Chevrolet Silverado2023 GMC Sierra2022 Chevrolet Silverado2022 GMC Sierra2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 Chevrolet Suburban2019 GMC Sierra2018 Chevrolet Silverado2018 Chevrolet Suburban2018 GMC Sierra2017 Chevrolet Silverado2017 Chevrolet Suburban2017 GMC Sierra2016 Chevrolet Silverado+ 34 more
  Associated Documents

  • DownloadMC-10251681-0001.pdf↗
• February 2, 2024•Document ID: 10250347

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING; POWER TRAIN

  Mfr Comm. #:

  16-NA-338

  Date Added:

  February 17, 2024

  Manufacturer:

  GMC

  Summary

  This Warranty Admin service bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and explains the PQC process, GWM Transaction submission, vehicle service record retention and proper handling of assembly returns for Canadian Dealers only.

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  Associated Documents

  • DownloadMC-10250347-0001.pdf↗
• January 31, 2024•Document ID: 10250006

  Service Bulletin/Repair Instructions
  EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM)

  Mfr Comm. #:

  PIT6122

  Date Added:

  February 12, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates to dealers of a known issue with failed map update

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  Associated Documents

  • DownloadMC-10250006-0001.pdf↗
• January 30, 2024•Document ID: 10250003

  Service Bulletin/Repair Instructions
  STRUCTURE:BODY:TAILGATE

  Mfr Comm. #:

  PIT6119

  Date Added:

  February 12, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates an issue where the minor tailgate will not open due to an aftermarket device installed on the vehicle.

  Associated Products (10)

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

  • DownloadMC-10250003-0001.pdf↗
• January 30, 2024•Document ID: 10250002

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIT5702E

  Date Added:

  February 12, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communication provides information to the technician on installing Regular Production Option Code 9L7 Up-fitter Auxiliary Switches. Technician will need to reference the latest version of General Motors Up-fitter Integration Bulletin 153. The information can be found at http://www.gmupfitter.com/ under the "Technical Bulletin" Tab and then "Show all bulletins."

  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-10250002-0001.pdf↗
• January 30, 2024•Document ID: 10250276

  Service Bulletin/Repair Instructions
  EQUIPMENT; ELECTRICAL SYSTEM

  Mfr Comm. #:

  23-NA-055

  Date Added:

  February 14, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information on the EL-52800 Diagnostic & Charge Battery Station (DCBS) – FAQs.

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  Associated Documents

  • DownloadMC-10250276-0001.pdf↗
• January 30, 2024•Document ID: 10250001

  Service Bulletin/Repair Instructions
  EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM

  Mfr Comm. #:

  PIT5734G

  Date Added:

  February 12, 2024

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates an issue with poor heater performance and advises dealerships to inspect the heater core inlet and outlet hoses for being twisted or kinked.

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  Associated Documents

  • DownloadMC-10250001-0001.pdf↗
• January 29, 2024•Document ID: 10249999

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  PIP5810B

  Date Added:

  February 12, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates that the tool for the HD transfer cases to install the input seal during a repair is incorrect and a new tool is in development.

  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-10249999-0001.pdf↗
• January 29, 2024•Document ID: 10249404

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  N232430460

  Date Added:

  January 29, 2024

  Manufacturer:

  CHEVROLET

  Summary

  Special Coverage. Certain vehicles may have a condition that could cause the engine’s cylinder 2 glow plug to fail. If this condition occurs, the Malfunction Indicator Lamp (Check Engine Light) will illuminate, and a diagnostic trouble code will set. Dealers are to replace the cylinder 2 glow plug as necessary. The repairs will be made at no charge to the customer.

  Associated Products (2)

  2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10249404-0001.pdf↗
• January 29, 2024•Document ID: 10250278

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; EQUIPMENT

  Mfr Comm. #:

  23-NA-189

  Date Added:

  February 14, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin assists technicians in setting up PicoScope hardware/software to monitor CAN bus traffic (voltage patterns) to aid Technical Assistance (TAC) and Field Service Engineers (FSEs) in diagnosing electrical issues present on network communication circuits.

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  Associated Documents

  • DownloadMC-10250278-0001.pdf↗
• January 26, 2024•Document ID: 10250258

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  23-NA-214

  Date Added:

  February 14, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides Information on Purge Pump Part Replacement and Purge pump Part Number Interchangeability.

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  Associated Documents

  • DownloadMC-10250258-0001.pdf↗
• January 22, 2024•Document ID: 10250250

  Service Bulletin/Repair Instructions
  POWER TRAIN; EQUIPMENT

  Mfr Comm. #:

  21-NA-238

  Date Added:

  February 14, 2024

  Manufacturer:

  GMC

  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-10250250-0001.pdf↗