GMC Sierra Service Bulletins (2021)

1,650 manufacturer communications on file.

• December 18, 2020•Document ID: 10187197

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  PIP5733G

  Date Added:

  February 16, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates Possible Crank no start or extended crank with DTC p12A6 set current or history.  Under Investigation

  Associated Products (15)

  2021 Chevrolet Equinox2021 Chevrolet Malibu2021 Chevrolet Silverado2021 GMC Sierra2021 GMC Terrain2020 Cadillac Escalade2020 Chevrolet Corvette2020 Chevrolet Equinox2020 Chevrolet Malibu2020 Chevrolet Suburban2020 Chevrolet Tahoe2020 GMC Terrain2020 GMC Yukon2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10187197-0001.pdf↗
• December 18, 2020•Document ID: 10187196

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIT5799A

  Date Added:

  February 16, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates a cocnern where a flashing spot can intermittently show up on the radio display while in reverse. The PI advises that engineering is investigating the concern.

  Associated Products (20)

  2021 Cadillac CT42021 Cadillac CT52021 Cadillac Escalade2021 Cadillac Escalade ESV2021 Chevrolet Corvette2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Sierra2021 GMC Yukon2020 Cadillac CT52020 Cadillac Escalade2020 Cadillac Escalade ESV2020 Chevrolet Bolt EV2020 Chevrolet Corvette2020 Chevrolet Silverado2020 Chevrolet Suburban2020 Chevrolet Tahoe2020 GMC Sierra2020 GMC Yukon
  Associated Documents

  • DownloadMC-10187196-0001.pdf↗
• December 18, 2020•Document ID: 10185746

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING:ENGINE:CRANK/CAMSHAFT POSITION SENSOR

  Mfr Comm. #:

  PIP5733G

  Date Added:

  January 25, 2021

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates Possible Crank no start or extended crank with DTC p12A6 set current or history.  Under Investigation

  Associated Products (15)

  2021 Chevrolet Equinox2021 Chevrolet Malibu2021 Chevrolet Silverado2021 GMC Sierra2021 GMC Terrain2020 Cadillac Escalade2020 Chevrolet Corvette2020 Chevrolet Equinox2020 Chevrolet Malibu2020 Chevrolet Suburban2020 Chevrolet Tahoe2020 GMC Terrain2020 GMC Yukon2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10185746-0001.pdf↗
• December 18, 2020•Document ID: 10185745

  Service Bulletin/Repair Instructions
  EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.

  Mfr Comm. #:

  PIT5799A

  Date Added:

  January 25, 2021

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates a cocnern where a flashing spot can intermittently show up on the radio display while in reverse. The PI advises that engineering is investigating the concern.

  Associated Products (20)

  2021 Cadillac CT42021 Cadillac CT52021 Cadillac Escalade2021 Cadillac Escalade ESV2021 Chevrolet Corvette2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Sierra2021 GMC Yukon2020 Cadillac CT52020 Cadillac Escalade2020 Cadillac Escalade ESV2020 Chevrolet Bolt EV2020 Chevrolet Corvette2020 Chevrolet Silverado2020 Chevrolet Suburban2020 Chevrolet Tahoe2020 GMC Sierra2020 GMC Yukon
  Associated Documents

  • DownloadMC-10185745-0001.pdf↗
• December 17, 2020•Document ID: 10187428

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

  Mfr Comm. #:

  20NA235

  Date Added:

  February 22, 2021

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides information to aid a dealer/customer concern of Radio Unwanted Phantom Touch or Non-Responsive to Touch After Cleaning/Disinfecting Radio Display.

  Associated Products (58)

  2021 Buick Enclave2021 Buick Encore GX2021 Cadillac CT42021 Cadillac CT52021 Cadillac CT62021 Cadillac Escalade2021 Cadillac Escalade ESV2021 Cadillac XT42021 Cadillac XT62021 Chevrolet Blazer2021 Chevrolet Bolt EV2021 Chevrolet Camaro2021 Chevrolet Colorado2021 Chevrolet Corvette2021 Chevrolet Malibu2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 Chevrolet Traverse2021 GMC Acadia+ 38 more
  Associated Documents

  • DownloadMC-10187428-0001.pdf↗
• December 17, 2020•Document ID: 10186101

  Service Bulletin/Repair Instructions
  EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT

  Mfr Comm. #:

  20NA235

  Date Added:

  February 1, 2021

  Manufacturer:

  GMC

  Summary

  This service bulletin provides information to aid a dealer/customer concern of Radio Unwanted Phantom Touch or Non-Responsive to Touch After Cleaning/Disinfecting Radio Display.

  Associated Products (55)

  2021 Buick Enclave2021 Buick Encore GX2021 Cadillac CT42021 Cadillac CT52021 Cadillac Escalade2021 Cadillac Escalade ESV2021 Cadillac XT42021 Cadillac XT62021 Chevrolet Blazer2021 Chevrolet Bolt EV2021 Chevrolet Camaro2021 Chevrolet Colorado2021 Chevrolet Corvette2021 Chevrolet Malibu2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 Chevrolet Traverse2021 GMC Acadia2021 GMC Canyon+ 35 more
  Associated Documents

  • DownloadMC-10186101-0001.pdf↗
• December 16, 2020•Document ID: 10187625

  Service Bulletin/Repair Instructions
  EQUIPMENT; ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION

  Mfr Comm. #:

  010601011L

  Date Added:

  March 1, 2021

  Manufacturer:

  CADILLAC

  Summary

  This informational bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.

  Associated Products (677)

  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+ 657 more
  Associated Documents

  • DownloadMC-10187625-0001.pdf↗
• December 16, 2020•Document ID: 10187618

  Service Bulletin/Repair Instructions
  EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL; EQUIPMENT

  Mfr Comm. #:

  N202319660 01

  Date Added:

  March 1, 2021

  Manufacturer:

  CHEVROLET

  Summary

  Service Update. Certain vehicles may present a broken engine valve spring. This may cause the engine to run rough, an engine knocking or ticking noise, a check engine light illumination, or a possible vehicle stall. Dealers are to perform the inspection procedure contained within this bulletin.

  Associated Products (8)

  2021 Cadillac Escalade2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Sierra2021 GMC Yukon2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10187618-0001.pdf↗
• December 16, 2020•Document ID: 10187387

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  19NA218

  Date Added:

  February 22, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This technical bulletin provides a service procedure to correct a condition of Ticking Noise from the Engine.

  Associated Products (31)

  2021 Cadillac Escalade2021 Cadillac Escalade ESV2021 Chevrolet Camaro2021 Chevrolet Corvette2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Sierra2021 GMC Yukon2021 GMC Yukon XL2020 Cadillac Escalade2020 Cadillac Escalade ESV2020 Chevrolet Camaro2020 Chevrolet Corvette2020 Chevrolet Silverado2020 Chevrolet Suburban2020 Chevrolet Tahoe2020 GMC Sierra2020 GMC Yukon2020 GMC Yukon XL+ 11 more
  Associated Documents

  • DownloadMC-10187387-0001.pdf↗
• December 16, 2020•Document ID: 10187345

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  N202319660 01

  Date Added:

  February 22, 2021

  Manufacturer:

  CHEVROLET

  Summary

  Service Update. Certain vehicles may present a broken engine valve spring. This may cause the engine to run rough, an engine knocking or ticking noise, a check engine light illumination, or a possible vehicle stall. Dealers are to perform the inspection procedure contained within this bulletin.

  Associated Products (8)

  2021 Cadillac Escalade2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Sierra2021 GMC Yukon2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10187345-0001.pdf↗
• December 16, 2020•Document ID: 10187213

  Service Bulletin/Repair Instructions
  ENGINE; EQUIPMENT

  Mfr Comm. #:

  N202319660 01

  Date Added:

  February 16, 2021

  Manufacturer:

  CHEVROLET

  Summary

  Service Update. Certain vehicles may present a broken engine valve spring. This may cause the engine to run rough, an engine knocking or ticking noise, a check engine light illumination, or a possible vehicle stall. Dealers are to perform the inspection procedure contained within this bulletin.

  Associated Products (8)

  2021 Cadillac Escalade2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Sierra2021 GMC Yukon2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10187213-0001.pdf↗
• December 16, 2020•Document ID: 10187189

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIT5751C

  Date Added:

  February 16, 2021

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates and issue with the SES MIL on setting DTC's P0201/P0202/P0203/P0204/P0205/P0206/P0216 and instructing dealership to inspect the engine wiring harness for damage.

  Associated Products (8)

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

  • DownloadMC-10187189-0001.pdf↗
• December 16, 2020•Document ID: 10186104

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING; EQUIPMENT

  Mfr Comm. #:

  010601011L

  Date Added:

  February 1, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This informational bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.

  Associated Products (706)

  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+ 686 more
  Associated Documents

  • DownloadMC-10186104-0001.pdf↗
• December 16, 2020•Document ID: 10186073

  Service Bulletin/Repair Instructions
  EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  19NA218

  Date Added:

  February 1, 2021

  Manufacturer:

  CADILLAC

  Summary

  This technical bulletin provides a service procedure to correct a condition of Ticking Noise from the Engine.

  Associated Products (31)

  2021 Cadillac Escalade2021 Cadillac Escalade ESV2021 Chevrolet Camaro2021 Chevrolet Corvette2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Sierra2021 GMC Yukon2021 GMC Yukon XL2020 Cadillac Escalade2020 Cadillac Escalade ESV2020 Chevrolet Camaro2020 Chevrolet Corvette2020 Chevrolet Silverado2020 Chevrolet Suburban2020 Chevrolet Tahoe2020 GMC Sierra2020 GMC Yukon2020 GMC Yukon XL+ 11 more
  Associated Documents

  • DownloadMC-10186073-0001.pdf↗
• December 16, 2020•Document ID: 10186051

  Service Bulletin/Repair Instructions
  EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  N202319660 01

  Date Added:

  February 1, 2021

  Manufacturer:

  CHEVROLET

  Summary

  Service Update. Certain vehicles may present a broken engine valve spring. This may cause the engine to run rough, an engine knocking or ticking noise, a check engine light illumination, or a possible vehicle stall. Dealers are to perform the inspection procedure contained within this bulletin.

  Associated Products (8)

  2021 Cadillac Escalade2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Sierra2021 GMC Yukon2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10186051-0001.pdf↗
• December 16, 2020•Document ID: 10185738

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM:WIRING

  Mfr Comm. #:

  PIT5751C

  Date Added:

  January 25, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates and issue with the SES MIL on setting DTC's P0201/P0202/P0203/P0204/P0205/P0206/P0216 and instructing dealership to inspect the engine wiring harness for damage.

  Associated Products (8)

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

  • DownloadMC-10185738-0001.pdf↗
• December 14, 2020•Document ID: 10187416

  Service Bulletin/Repair Instructions
  EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.

  Mfr Comm. #:

  20NA221

  Date Added:

  February 22, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This technical bulletin provides repair information to correct a customer concern of Unable to Access Apps and Remote Personalization Features in the Radio.

  Associated Products (2)

  2021 Chevrolet Silverado2021 GMC Sierra
  Associated Documents

  • DownloadMC-10187416-0001.pdf↗
• December 14, 2020•Document ID: 10187186

  Service Bulletin/Repair Instructions
  BACK OVER PREVENTION:SOFTWARE

  Mfr Comm. #:

  PIT5793A

  Date Added:

  February 16, 2021

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates that engineering is Work on a Software fix for some radio apps not Opening, Connected Navigation (live traffic, etc.) is not functioning (base navigation functions correctly)

  Associated Products (2)

  2021 Chevrolet Silverado2021 GMC Sierra
  Associated Documents

  • DownloadMC-10187186-0001.pdf↗
• December 14, 2020•Document ID: 10187183

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; BACK OVER PREVENTION

  Mfr Comm. #:

  PIT5386F

  Date Added:

  February 16, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary Information communication provides information to the technician about vehicles that are found to have a back-up alarm inoperative during the Pre-Delivery Inspection. On trucks equipped with the Back Up Alarm (RPO 8S3), the alarm will be intentionally left disconnected from the assembly plant. Technician will reroute the harness and plug it in.

  Associated Products (16)

  2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra2018 Chevrolet Silverado2018 GMC Sierra2017 Chevrolet Silverado2017 GMC Sierra2016 Chevrolet Silverado2016 GMC Sierra2015 Chevrolet Silverado2015 GMC Sierra2014 Chevrolet Silverado2014 GMC Sierra
  Associated Documents

  • DownloadMC-10187183-0001.pdf↗
• December 14, 2020•Document ID: 10186089

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; EQUIPMENT

  Mfr Comm. #:

  20NA221

  Date Added:

  February 1, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This technical bulletin provides repair information to correct a customer concern of Unable to Access Apps and Remote Personalization Features in the Radio.

  Associated Products (2)

  2021 Chevrolet Silverado2021 GMC Sierra
  Associated Documents

  • DownloadMC-10186089-0001.pdf↗