Chevrolet Tahoe Service Bulletins (2021)

1,477 manufacturer communications on file.

• September 18, 2020•Document ID: 10181149

  Service Bulletin/Repair Instructions
  EXTERIOR LIGHTING

  Mfr Comm. #:

  PIT5777

  Date Added:

  October 19, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates an issue with a Check Reverse Lamp message on the DIC, but the reverse light operate.  Engineering working on a fix.

  Associated Products (2)

  2021 Chevrolet Suburban2021 Chevrolet Tahoe
  Associated Documents

  • DownloadMC-10181149-0001.pdf↗
• September 17, 2020•Document ID: 10181714

  Service Bulletin/Repair Instructions
  POWER TRAIN; ELECTRICAL SYSTEM

  Mfr Comm. #:

  20NA189

  Date Added:

  October 26, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This technical bulletin provides repair information to correct a customer concern of Transmission Control Module Offline Event.

  Associated Products (4)

  2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Yukon2021 GMC Yukon XL
  Associated Documents

  • DownloadMC-10181714-0001.pdf↗
• September 17, 2020•Document ID: 10181695

  Service Bulletin/Repair Instructions
  EQUIPMENT; ELECTRICAL SYSTEM

  Mfr Comm. #:

  20NA157

  Date Added:

  October 26, 2020

  Manufacturer:

  GMC

  Summary

  This bulletin provides information on the Transport Mode On Message Being Displayed in the Driver Information Center (DIC) and/or Battery Light is Flashing and the procedures to turn the Transport Mode message ON and OFF.

  Associated Products (168)

  2021 Buick Encore2021 Buick Encore GX2021 Buick Envision2021 Cadillac CT42021 Cadillac CT52021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 Chevrolet Bolt EV2021 Chevrolet Camaro2021 Chevrolet Colorado2021 Chevrolet Equinox2021 Chevrolet Malibu2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 Chevrolet Trailblazer2021 GMC Acadia2021 GMC Canyon+ 148 more
  Associated Documents

  • DownloadMC-10181695-0001.pdf↗
• September 17, 2020•Document ID: 10181142

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  PIT5770

  Date Added:

  October 19, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates an issue with the Transmission Control Module (TCM) not communicating and causing a no crank concern.  Dealers are to reprogram the TCM to correct the concern.

  Associated Products (3)

  2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Yukon XL
  Associated Documents

  • DownloadMC-10181142-0001.pdf↗
• September 15, 2020•Document ID: 10181715

  Service Bulletin/Repair Instructions
  STEERING; ELECTRICAL SYSTEM

  Mfr Comm. #:

  20NA190

  Date Added:

  October 26, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This technical bulletin provides repair information to correct a customer concern of Service Power Steering Message Displayed in DIC, DTC?U3000?44 Set.

  Associated Products (4)

  2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Yukon2021 GMC Yukon XL
  Associated Documents

  • DownloadMC-10181715-0001.pdf↗
• September 14, 2020•Document ID: 10181139

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIT5774

  Date Added:

  October 19, 2020

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates an issue with: Overhead Console Inoperative / Service Safety Restraints Message / Sunroof Inoperative / DTC's B1A7A and U1121.  Dealers are to cycle the power to the overhead console to correct the issue.  Engineering working on releasing new overhead console.

  Associated Products (3)

  2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Yukon XL
  Associated Documents

  • DownloadMC-10181139-0001.pdf↗
• September 11, 2020•Document ID: 10181138

  Service Bulletin/Repair Instructions
  STRUCTURE

  Mfr Comm. #:

  PIT5775

  Date Added:

  October 19, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates an issue with a service column lock message with DTC U3000 sym71,72 or 96 and engineering is working on a fix.

  Associated Products (3)

  2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Yukon XL
  Associated Documents

  • DownloadMC-10181138-0001.pdf↗
• September 11, 2020•Document ID: 10181137

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIT5759D

  Date Added:

  October 19, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates an issue with the SIR MIL turning on and DTC B14DC setting.  Engineering is root causing the concern.

  Associated Products (3)

  2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Yukon XL
  Associated Documents

  • DownloadMC-10181137-0001.pdf↗
• September 10, 2020•Document ID: 10181696

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  20NA160

  Date Added:

  October 26, 2020

  Manufacturer:

  GMC

  Summary

  This informational bulletin provides information for dealers/technicians on Normal Characteristic - Wireless Phone Projection Audio Cuts Out Every 10 Seconds on New/Unsold Vehicles.

  Associated Products (12)

  2021 Buick Encore GX2021 Cadillac Escalade2021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 Chevrolet Colorado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Acadia2021 GMC Canyon2021 GMC Yukon2021 GMC Yukon XL
  Associated Documents

  • DownloadMC-10181696-0001.pdf↗
• September 9, 2020•Document ID: 10181705

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; STEERING

  Mfr Comm. #:

  20NA178

  Date Added:

  October 26, 2020

  Manufacturer:

  CADILLAC

  Summary

  This technical bulletin provides repair information to correct a customer concern of Service Driver Assist and/or Take Steering Messages on Start-up, Advanced Driver Assist Systems (ADAS) Features Not Available.

  Associated Products (8)

  2021 Cadillac CT42021 Cadillac CT52021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Yukon2021 GMC Yukon XL2020 Cadillac CT42020 Cadillac CT5
  Associated Documents

  • DownloadMC-10181705-0001.pdf↗
• September 2, 2020•Document ID: 10181660

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  16NA019

  Date Added:

  October 26, 2020

  Manufacturer:

  GMC

  Summary

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

  Associated Products (225)

  2021 Cadillac CT42021 Cadillac CT52021 Cadillac Escalade2021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 Chevrolet Camaro2021 Chevrolet Colorado2021 Chevrolet Corvette2021 Chevrolet Equinox2021 Chevrolet Malibu2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 Chevrolet Trailblazer2021 GMC Acadia2021 GMC Canyon2021 GMC Savana2021 GMC Sierra+ 205 more
  Associated Documents

  • DownloadMC-10181660-0001.pdf↗
• August 27, 2020•Document ID: 10179658

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  PIP5733C

  Date Added:

  September 14, 2020

  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 (22)

  2021 Cadillac Escalade2021 Chevrolet Equinox2021 Chevrolet Malibu2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Sierra2021 GMC Terrain2021 GMC Yukon2020 Cadillac CT52020 Cadillac Escalade2020 Chevrolet Corvette2020 Chevrolet Equinox2020 Chevrolet Malibu2020 Chevrolet Silverado2020 Chevrolet Suburban2020 Chevrolet Tahoe2020 GMC Sierra2020 GMC Terrain2020 GMC Yukon+ 2 more
  Associated Documents

  • DownloadMC-10179658-0001.pdf↗
• August 25, 2020•Document ID: 10179651

  Service Bulletin/Repair Instructions
  STRUCTURE:BODY:TAILGATE; STRUCTURE:BODY:TAILGATE:HINGE AND ATTACHMENTS

  Mfr Comm. #:

  PIT5768A

  Date Added:

  September 14, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates and issue with a rattle noise from the liftgate/liftglass and how to make adjustment to correct the noise.

  Associated Products (3)

  2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Yukon XL
  Associated Documents

  • DownloadMC-10179651-0001.pdf↗
• August 25, 2020•Document ID: 10179650

  Service Bulletin/Repair Instructions
  EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; STRUCTURE:BODY:TAILGATE

  Mfr Comm. #:

  PIT5768

  Date Added:

  September 14, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates and issue with a rattle noise from the liftgate/liftglass and how to make adjustment to correct the noise.

  Associated Products (3)

  2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Yukon XL
  Associated Documents

  • DownloadMC-10179650-0001.pdf↗
• August 20, 2020•Document ID: 10179642

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; ENGINE; FUEL SYSTEM, GASOLINE

  Mfr Comm. #:

  PIP5647B

  Date Added:

  September 14, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates  A vehicle may have a concern of running poor and stalling. No trouble codes may be set referencing this condition. Fuel trims around -20% may be observed on both banks. Engine oil level  will be found over full and have a  fuel odor. It will be found that the Engine oil is diluted with fuel.  Small gas engines (SGE) May only have the engine oil level over full and have a  fuel odor. It will be found that the Engine oil is diluted with fuel. This concern is caused by marshalling the vehicle around the lot before it is sold and/or short driver cycles.

  Associated Products (27)

  2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Yukon2020 Buick Encore2020 Chevrolet Equinox2020 Chevrolet Malibu2020 Chevrolet Silverado2020 GMC Sierra2020 GMC Terrain2019 Buick Encore2019 Chevrolet Cruze2019 Chevrolet Equinox2019 Chevrolet Malibu2019 Chevrolet Silverado2019 GMC Sierra2019 GMC Terrain2018 Buick Encore2018 Chevrolet Cruze2018 Chevrolet Equinox2018 Chevrolet Malibu+ 7 more
  Associated Documents

  • DownloadMC-10179642-0001.pdf↗
• August 18, 2020•Document ID: 10179640

  Service Bulletin/Repair Instructions
  EQUIPMENT ADAPTIVE/MOBILITY; AIR BAGS

  Mfr Comm. #:

  PIT5759C

  Date Added:

  September 14, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates an issue with the SIR MIL turning on and DTC B14DC setting.  Engineering is root causing the concern.

  Associated Products (2)

  2021 Chevrolet Tahoe2021 GMC Yukon
  Associated Documents

  • DownloadMC-10179640-0001.pdf↗
• August 17, 2020•Document ID: 10179638

  Service Bulletin/Repair Instructions
  STRUCTURE; WHEELS

  Mfr Comm. #:

  PIT5765

  Date Added:

  September 14, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates that some customers may comment on a rattle, flutter, flapping, and/or wind type noise from the front end caused by either the left or right front inner wheel well liner having excessive movement.

  Associated Products (2)

  2021 Chevrolet Tahoe2021 GMC Yukon XL
  Associated Documents

  • DownloadMC-10179638-0001.pdf↗
• August 14, 2020•Document ID: 10180317

  Service Bulletin/Repair Instructions
  TIRES

  Mfr Comm. #:

  20NA159

  Date Added:

  September 28, 2020

  Manufacturer:

  CADILLAC

  Summary

  This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S. Dealers Only).

  Associated Products (345)

  2021 Buick Enclave2021 Buick Encore2021 Buick Encore GX2021 Buick Envision2021 Cadillac CT42021 Cadillac CT52021 Cadillac Escalade2021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet Camaro2021 Chevrolet Corvette2021 Chevrolet Equinox2021 Chevrolet Malibu2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 Chevrolet Trailblazer2021 GMC Acadia2021 GMC Canyon+ 325 more
  Associated Documents

  • DownloadMC-10180317-0001.pdf↗
• August 12, 2020•Document ID: 10180315

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  20NA157

  Date Added:

  September 28, 2020

  Manufacturer:

  CADILLAC

  Summary

  This bulletin provides information on the Transport Mode On Message Being Displayed in the Driver Information Center (DIC) and/or Battery Light is Flashing and the procedures to turn the Transport Mode message ON and OFF.

  Associated Products (158)

  2021 Buick Encore2021 Buick Encore GX2021 Cadillac XT42021 Chevrolet Camaro2021 Chevrolet Equinox2021 Chevrolet Malibu2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 Chevrolet Trailblazer2021 GMC Sierra2021 GMC Terrain2021 GMC Yukon2021 GMC Yukon XL2020 Buick Encore2020 Buick Encore GX2020 Buick Envision2020 Buick Regal2020 Cadillac CT42020 Cadillac CT5+ 138 more
  Associated Documents

  • DownloadMC-10180315-0001.pdf↗
• August 11, 2020•Document ID: 10179633

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

  Mfr Comm. #:

  PIT5762A

  Date Added:

  September 14, 2020

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates an issues with false codes setting in vehicles due to timing issues with modules  Engineering is working on a fix

  Associated Products (4)

  2021 Cadillac Escalade2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Yukon XL
  Associated Documents

  • DownloadMC-10179633-0001.pdf↗