GMC Yukon Service Bulletins (2021)

1,235 manufacturer communications on file.

• May 25, 2021•Document ID: 10198890

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  21NA124

  Date Added:

  July 6, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to correct a customer concern of an MIL Illuminated with DTCs P0442 and/or P0455 Set.

  Associated Products (32)

  2021 Buick Enclave2021 Buick Encore2021 Buick Encore GX2021 Buick Envision2021 Cadillac CT42021 Cadillac CT52021 Cadillac Escalade ESV2021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet 4500HD2021 Chevrolet 5500HD2021 Chevrolet Blazer2021 Chevrolet Bolt EV2021 Chevrolet Camaro2021 Chevrolet Colorado2021 Chevrolet Corvette2021 Chevrolet Equinox2021 Chevrolet Express2021 Chevrolet Malibu+ 12 more
  Associated Documents

  • DownloadMC-10198890-0001.pdf↗
• May 25, 2021•Document ID: 10197309

  Service Bulletin/Repair Instructions
  SERVICE BRAKES

  Mfr Comm. #:

  PIT5681B

  Date Added:

  June 14, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates the location of the GM Accessory Performance Brake System Rotor Specifications

  Associated Products (3)

  2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Yukon
  Associated Documents

  • DownloadMC-10197309-0001.pdf↗
• May 25, 2021•Document ID: 10197305

  Service Bulletin/Repair Instructions
  STRUCTURE; ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIC6384F

  Date Added:

  June 14, 2021

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates a parts restriction is in place for the Body Control Module on 2020 Cadillac CT4, CT5, Chevrolet Corvette, Suburban, Tahoe and GMC Yukon.

  Associated Products (7)

  2021 Buick Envision2021 Cadillac CT42021 Cadillac CT52021 Chevrolet Corvette2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Yukon
  Associated Documents

  • DownloadMC-10197305-0001.pdf↗
• May 24, 2021•Document ID: 10197327

  Service Bulletin/Repair Instructions
  EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE

  Mfr Comm. #:

  N212327470

  Date Added:

  June 14, 2021

  Manufacturer:

  GMC

  Summary

  Service Update. Certain vehicles, equipped with an Infotainment System, may have a condition during cold temperature conditions where the Infotainment screen is blacked out. Dealers will reprogram the radio.

  Associated Products (8)

  2021 Buick Envision2021 Cadillac CT42021 Cadillac CT52021 Chevrolet Corvette2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Yukon2021 GMC Yukon XL
  Associated Documents

  • DownloadMC-10197327-0001.pdf↗
• May 21, 2021•Document ID: 10199235

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  18NA306

  Date Added:

  July 19, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This Warranty Administration bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA).

  Associated Products (30)

  2021 Buick Enclave2021 Buick Encore2021 Buick Encore GX2021 Buick Envision2021 Cadillac CT42021 Cadillac CT52021 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 Spark2021 Chevrolet Suburban+ 10 more
  Associated Documents

  • DownloadMC-10199235-0001.pdf↗
• May 21, 2021•Document ID: 10198844

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  18NA306

  Date Added:

  July 6, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This Warranty Administration bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA).

  Associated Products (30)

  2021 Buick Enclave2021 Buick Encore2021 Buick Encore GX2021 Buick Envision2021 Cadillac CT42021 Cadillac CT52021 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 Spark2021 Chevrolet Suburban+ 10 more
  Associated Documents

  • DownloadMC-10198844-0001.pdf↗
• May 21, 2021•Document ID: 10197301

  Service Bulletin/Repair Instructions
  FUEL SYSTEM, GASOLINE; POWER TRAIN

  Mfr Comm. #:

  PIP5792A

  Date Added:

  June 14, 2021

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates to the dealer technician that if a customer comments that their vehicle equipped with a 6L80, 6L90, 8L90, 10L80, or 10L1000 transmission has a harsh shift, shudder or stall concern they should inspect for a twisted transmission cooler line. Technicians are instructed to disconnect the cooler line and untwist it then reconnect the cooler line and inspect the cooler line for being misshaped. Technicians are instructed to replace the cooler line if it is misshaped.

  Associated Products (3)

  2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Yukon
  Associated Documents

  • DownloadMC-10197301-0001.pdf↗
• May 20, 2021•Document ID: 10200112

  Service Bulletin/Repair Instructions
  LANE DEPARTURE; BACK OVER PREVENTION

  Mfr Comm. #:

  PIE0639

  Date Added:

  August 9, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to one or more camera views showing intermittent behavior and/or totally inoperable.

  Associated Products (4)

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

  • DownloadMC-10200112-0001.pdf↗
• May 19, 2021•Document ID: 10199254

  Service Bulletin/Repair Instructions
  VISIBILITY:SUN/MOON ROOF ASSEMBLY

  Mfr Comm. #:

  20NA219

  Date Added:

  July 19, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This technical bulletin provides repair information to correct a customer concern of a gurgle or sloshing noise heard coming from the front sunroof drain hose areas.

  Associated Products (5)

  2021 Cadillac Escalade ESV2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Yukon2021 GMC Yukon XL
  Associated Documents

  • DownloadMC-10199254-0001.pdf↗
• May 19, 2021•Document ID: 10198863

  Service Bulletin/Repair Instructions
  VISIBILITY

  Mfr Comm. #:

  20NA219

  Date Added:

  July 6, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This technical bulletin provides repair information to correct a customer concern of a gurgle or sloshing noise heard coming from the front sunroof drain hose areas.

  Associated Products (5)

  2021 Cadillac Escalade ESV2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Yukon2021 GMC Yukon XL
  Associated Documents

  • DownloadMC-10198863-0001.pdf↗
• May 17, 2021•Document ID: 10200111

  Service Bulletin/Repair Instructions
  FORWARD COLLISION AVOIDANCE; LANE DEPARTURE

  Mfr Comm. #:

  PIE0638

  Date Added:

  August 9, 2021

  Manufacturer:

  GMC

  Summary

  This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to having a No Start, Forward Collision Alert, Adaptive Cruise Control and/or Lane Keep Assist Inoperable condition.

  Associated Products (4)

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

  • DownloadMC-10200111-0001.pdf↗
• May 17, 2021•Document ID: 10200110

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  PIE0637

  Date Added:

  August 9, 2021

  Manufacturer:

  CADILLAC

  Summary

  This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to one or more of the following condition Stalls, Crank with no star, Check Engine Lamp illuminated on the Driver Information Center (DIC).

  Associated Products (7)

  2021 Cadillac Escalade ESV2021 Chevrolet Equinox2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Terrain2021 GMC Yukon2021 GMC Yukon XL
  Associated Documents

  • DownloadMC-10200110-0001.pdf↗
• May 17, 2021•Document ID: 10200090

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  100089006H

  Date Added:

  August 9, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information for dealers on how to submit a product information report (PIR) (Canada Only).

  Associated Products (30)

  2021 Buick Enclave2021 Buick Encore2021 Buick Encore GX2021 Buick Envision2021 Cadillac CT42021 Cadillac CT52021 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 Spark2021 Chevrolet Suburban+ 10 more
  Associated Documents

  • DownloadMC-10200090-0001.pdf↗
• May 17, 2021•Document ID: 10200088

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  070089037P

  Date Added:

  August 9, 2021

  Manufacturer:

  CADILLAC

  Summary

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

  Associated Products (32)

  2021 Buick Enclave2021 Buick Encore2021 Buick Encore GX2021 Buick Envision2021 Cadillac CT42021 Cadillac CT52021 Cadillac Escalade ESV2021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet 4500HD2021 Chevrolet 5500HD2021 Chevrolet Blazer2021 Chevrolet Bolt EV2021 Chevrolet Camaro2021 Chevrolet Colorado2021 Chevrolet Corvette2021 Chevrolet Equinox2021 Chevrolet Express2021 Chevrolet Malibu+ 12 more
  Associated Documents

  • DownloadMC-10200088-0001.pdf↗
• May 17, 2021•Document ID: 10197298

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  PIP5776D

  Date Added:

  June 14, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates that a vehicle may exhibit a misfire condition resulting in misfire codes P0300-P308. Upon diagnosis it may be discovered the lifter has come apart.  It is recommended to replace the lifter guide and the four lifters.

  Associated Products (3)

  2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Yukon
  Associated Documents

  • DownloadMC-10197298-0001.pdf↗
• May 14, 2021•Document ID: 10199252

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  20NA178

  Date Added:

  July 19, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This service 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 (6)

  2021 Cadillac CT42021 Cadillac CT52021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Yukon2021 GMC Yukon XL
  Associated Documents

  • DownloadMC-10199252-0001.pdf↗
• May 14, 2021•Document ID: 10198861

  Service Bulletin/Repair Instructions
  STEERING

  Mfr Comm. #:

  20NA178

  Date Added:

  July 6, 2021

  Manufacturer:

  GMC

  Summary

  This service 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 (6)

  2021 Cadillac CT42021 Cadillac CT52021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Yukon2021 GMC Yukon XL
  Associated Documents

  • DownloadMC-10198861-0001.pdf↗
• May 14, 2021•Document ID: 10197297

  Service Bulletin/Repair Instructions
  ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC)

  Mfr Comm. #:

  PIT4322L

  Date Added:

  June 14, 2021

  Manufacturer:

  GMC

  Summary

  This Preliminary Information communication provides information to the technician about vehicles that have an unwanted Stability Activation and/or a Service Stability message on the Driver Information Center. Technician may find a Diagnostic Trouble Code C0710. Technician should inspect for vehicles modifications before any in-depth diagnostics are performed.

  Associated Products (3)

  2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Yukon
  Associated Documents

  • DownloadMC-10197297-0001.pdf↗
• May 12, 2021•Document ID: 10199234

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; LATCHES/LOCKS/LINKAGES

  Mfr Comm. #:

  18NA279

  Date Added:

  July 19, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information for dealers/technicians on the process to disable and enable passive unlocking.

  Associated Products (22)

  2021 Buick Enclave2021 Buick Encore2021 Buick Encore GX2021 Buick Envision2021 Cadillac CT42021 Cadillac CT52021 Cadillac Escalade ESV2021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 Chevrolet Camaro2021 Chevrolet Malibu2021 Chevrolet Spark2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 Chevrolet Trailblazer2021 Chevrolet Traverse2021 Chevrolet Trax2021 GMC Acadia+ 2 more
  Associated Documents

  • DownloadMC-10199234-0001.pdf↗
• May 12, 2021•Document ID: 10198843

  Service Bulletin/Repair Instructions
  LATCHES/LOCKS/LINKAGES

  Mfr Comm. #:

  18NA279

  Date Added:

  July 6, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information for dealers/technicians on the process to disable and enable passive unlocking.

  Associated Products (22)

  2021 Buick Enclave2021 Buick Encore2021 Buick Encore GX2021 Buick Envision2021 Cadillac CT42021 Cadillac CT52021 Cadillac Escalade ESV2021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 Chevrolet Camaro2021 Chevrolet Malibu2021 Chevrolet Spark2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 Chevrolet Trailblazer2021 Chevrolet Traverse2021 Chevrolet Trax2021 GMC Acadia+ 2 more
  Associated Documents

  • DownloadMC-10198843-0001.pdf↗