Chevrolet Blazer Service Bulletins (2021)

812 manufacturer communications on file.

• December 14, 2022•Document ID: 10228886

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  18-NA-073

  Date Added:

  January 6, 2023

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and prevent unnecessary engine replacement.

  Associated Products (98)

  2023 Buick Enclave2023 Buick Encore2023 Buick Encore GX2023 Buick Envision2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Cadillac XT42023 Cadillac XT52023 Cadillac XT62023 Chevrolet Blazer2023 Chevrolet Camaro2023 Chevrolet Colorado2023 Chevrolet Corvette2023 Chevrolet Equinox2023 Chevrolet Malibu2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 Chevrolet Trailblazer+ 78 more
  Associated Documents

  • DownloadMC-10228886-0001.pdf↗
• December 13, 2022•Document ID: 10228863

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

  Mfr Comm. #:

  16-NA-338

  Date Added:

  January 5, 2023

  Manufacturer:

  CHEVROLET

  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.

  Associated Products (88)

  2023 Buick Enclave2023 Buick Encore2023 Buick Encore GX2023 Buick Envision2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Cadillac XT42023 Cadillac XT52023 Cadillac XT62023 Chevrolet Blazer2023 Chevrolet Camaro2023 Chevrolet Colorado2023 Chevrolet Corvette2023 Chevrolet Equinox2023 Chevrolet Malibu2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 Chevrolet Trailblazer+ 68 more
  Associated Documents

  • DownloadMC-10228863-0001.pdf↗
• December 12, 2022•Document ID: 10230691

  Service Bulletin/Repair Instructions
  FORWARD COLLISION AVOIDANCE

  Mfr Comm. #:

  PIT5551H

  Date Added:

  January 30, 2023

  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 (48)

  2023 Buick Enclave2023 Cadillac Escalade ESV2023 Cadillac XT42023 Cadillac XT52023 Cadillac XT62023 Chevrolet Blazer2023 Chevrolet Bolt EV2023 Chevrolet Equinox2023 Chevrolet Malibu2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 Chevrolet Traverse2023 GMC Acadia2023 GMC Terrain2023 GMC Yukon XL2022 Buick Enclave2022 Cadillac Escalade ESV2022 Cadillac XT42022 Cadillac XT52022 Cadillac XT6+ 28 more
  Associated Documents

  • DownloadMC-10230691-0001.pdf↗
• December 12, 2022•Document ID: 10228901

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; EQUIPMENT

  Mfr Comm. #:

  22-NA-250

  Date Added:

  January 6, 2023

  Manufacturer:

  GMC

  Summary

  This service bulletin provides repair information to correct a customer concern of Rear View Camera Display Gridlines Dim.

  Associated Products (39)

  2023 Buick Enclave2023 Buick Encore GX2023 Cadillac XT42023 Cadillac XT52023 Cadillac XT62023 Chevrolet Blazer2023 Chevrolet Bolt EUV2023 Chevrolet Bolt EV2023 Chevrolet Camaro2023 Chevrolet Malibu2023 Chevrolet Trailblazer2023 Chevrolet Traverse2023 GMC Acadia2022 Buick Enclave2022 Buick Encore GX2022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet Blazer2022 Chevrolet Bolt EUV+ 19 more
  Associated Documents

  • DownloadMC-10228901-0001.pdf↗
• December 7, 2022•Document ID: 10228192

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  22-NA-244

  Date Added:

  December 21, 2022

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information about GM Accessories - Dealer-Installed, Repaired or Replaced During Warranty Coverage Period.

  Associated Products (96)

  2023 Buick Enclave2023 Buick Encore2023 Buick Encore GX2023 Buick Envision2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Cadillac Lyriq2023 Cadillac XT42023 Cadillac XT52023 Cadillac XT62023 Chevrolet Blazer2023 Chevrolet Bolt EUV2023 Chevrolet Bolt EV2023 Chevrolet Camaro2023 Chevrolet Colorado2023 Chevrolet Corvette2023 Chevrolet Equinox2023 Chevrolet Malibu+ 76 more
  Associated Documents

  • DownloadMC-10228192-0001.pdf↗
• December 6, 2022•Document ID: 10228226

  Service Bulletin/Repair Instructions
  SERVICE BRAKES, HYDRAULIC

  Mfr Comm. #:

  22-NA-247

  Date Added:

  December 24, 2022

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides information to dealership personnel that after performing a brake inspection, brake pad replacement, or any other repair that requires the caliper piston to be reseated may be causing DTC C05B0 to falsely set for eBoost applications.

  Associated Products (51)

  2023 Buick Enclave2023 Buick Envision2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Cadillac XT42023 Cadillac XT52023 Cadillac XT62023 Chevrolet Blazer2023 Chevrolet Corvette2023 Chevrolet Equinox2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 GMC Acadia2023 GMC Hummer EV Pickup2023 GMC Terrain2023 GMC Yukon2023 GMC Yukon XL2022 Buick Enclave+ 31 more
  Associated Documents

  • DownloadMC-10228226-0001.pdf↗
• December 5, 2022•Document ID: 10230683

  Service Bulletin/Repair Instructions
  EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:SOFTWARE

  Mfr Comm. #:

  PIP5632G

  Date Added:

  January 30, 2023

  Manufacturer:

  BUICK

  Summary

  This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Technician will need use Global Diagnostic System 2 to send the session logs to General Motors Technical Assistance Center for further assistance on the vehicle in question.

  Associated Products (51)

  2022 Buick Enclave2022 Buick Encore2022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 Cadillac Escalade2022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet Blazer2022 Chevrolet Bolt EV2022 Chevrolet Camaro2022 Chevrolet Colorado2022 Chevrolet Equinox2022 Chevrolet Express2022 Chevrolet Malibu2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 Chevrolet Trailblazer2022 Chevrolet Traverse+ 31 more
  Associated Documents

  • DownloadMC-10230683-0001.pdf↗
• December 2, 2022•Document ID: 10230682

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

  Mfr Comm. #:

  PIP4902Q

  Date Added:

  January 30, 2023

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Technician will need use Global Diagnostic System 2 to send the session logs to General Motors Technical Assistance Center for further assistance on the vehicle in question.

  Associated Products (51)

  2022 Buick Enclave2022 Buick Encore2022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 Cadillac Escalade2022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet Blazer2022 Chevrolet Bolt EV2022 Chevrolet Camaro2022 Chevrolet Colorado2022 Chevrolet Equinox2022 Chevrolet Express2022 Chevrolet Malibu2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 Chevrolet Trailblazer2022 Chevrolet Traverse+ 31 more
  Associated Documents

  • DownloadMC-10230682-0001.pdf↗
• December 1, 2022•Document ID: 10230680

  Service Bulletin/Repair Instructions
  EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:SOFTWARE

  Mfr Comm. #:

  PIP5814

  Date Added:

  January 30, 2023

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates that there some service parts released to dealers missing software.

  Associated Products (8)

  2021 Buick Enclave2021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 Chevrolet Equinox2021 Chevrolet Traverse2021 GMC Acadia
  Associated Documents

  • DownloadMC-10230680-0001.pdf↗
• December 1, 2022•Document ID: 10227795

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  22-NA-240

  Date Added:

  December 15, 2022

  Manufacturer:

  CHEVROLET

  Summary

  This informational bulletin advises the tech to validate if oil is leaking into the cooling system and to test and verify were to leak is coming from before replacing all the parts that wouldn't apply to the repair.

  Associated Products (28)

  2023 Buick Enclave2023 Cadillac CT42023 Cadillac CT52023 Cadillac XT52023 Cadillac XT62023 Chevrolet Blazer2023 Chevrolet Camaro2023 Chevrolet Traverse2022 Buick Enclave2022 Cadillac CT42022 Cadillac CT52022 Cadillac XT52022 Cadillac XT62022 Chevrolet Blazer2022 Chevrolet Camaro2022 Chevrolet Colorado2022 Chevrolet Traverse2022 GMC Canyon2021 Buick Enclave2021 Cadillac CT5+ 8 more
  Associated Documents

  • DownloadMC-10227795-0001.pdf↗
• November 30, 2022•Document ID: 10227401

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; EQUIPMENT

  Mfr Comm. #:

  22-NA-238

  Date Added:

  December 7, 2022

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides diagnostic/repair information to correct a customer concern of Cellphone not Charging or USB Receptacle Inoperative.

  Associated Products (105)

  2023 Buick Enclave2023 Buick Encore2023 Buick Encore GX2023 Buick Envision2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Cadillac Lyriq2023 Cadillac XT42023 Cadillac XT52023 Cadillac XT62023 Chevrolet Blazer2023 Chevrolet Bolt EUV2023 Chevrolet Bolt EV2023 Chevrolet Camaro2023 Chevrolet Colorado2023 Chevrolet Corvette2023 Chevrolet Equinox2023 Chevrolet Malibu+ 85 more
  Associated Documents

  • DownloadMC-10227401-0001.pdf↗
• November 29, 2022•Document ID: 10227674

  Service Bulletin/Repair Instructions
  TIRES; WHEELS

  Mfr Comm. #:

  PIT3271N

  Date Added:

  December 12, 2022

  Manufacturer:

  GMC

  Summary

  This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles. General Motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. Technician should not use the information that is provided by the antilock braking system tire size selection.

  Associated Products (106)

  2023 Buick Enclave2023 Buick Encore2023 Buick Encore GX2023 Buick Envision2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Cadillac Lyriq2023 Cadillac XT42023 Cadillac XT52023 Cadillac XT62023 Chevrolet Blazer2023 Chevrolet Bolt EUV2023 Chevrolet Bolt EV2023 Chevrolet Camaro2023 Chevrolet Colorado2023 Chevrolet Corvette2023 Chevrolet Equinox2023 Chevrolet Malibu+ 86 more
  Associated Documents

  • DownloadMC-10227674-0001.pdf↗
• November 22, 2022•Document ID: 10227396

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  PIE0720A

  Date Added:

  December 7, 2022

  Manufacturer:

  CADILLAC

  Summary

  This engineering information (EI) closure ends the need to gather further information from technicians in regards to Vehicle Will Not Move When in Drive, Neutral and/or Reverse and DTCs P0746, P0747 Set.

  Associated Products (9)

  2021 Buick Enclave2021 Buick Encore2021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 Chevrolet Traverse2021 GMC Acadia2021 GMC Terrain
  Associated Documents

  • DownloadMC-10227396-0001.pdf↗
• November 18, 2022•Document ID: 10227670

  Service Bulletin/Repair Instructions
  EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

  Mfr Comm. #:

  PIT5662G

  Date Added:

  December 12, 2022

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates information to diagnose DTC C056D or C056E.

  Associated Products (12)

  2022 Buick Enclave2022 Cadillac XT52022 Cadillac XT62022 Chevrolet Blazer2022 Chevrolet Traverse2022 GMC Acadia2021 Buick Enclave2021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 Chevrolet Traverse2021 GMC Acadia
  Associated Documents

  • DownloadMC-10227670-0001.pdf↗
• November 18, 2022•Document ID: 10227669

  Service Bulletin/Repair Instructions
  EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

  Mfr Comm. #:

  PIP5889

  Date Added:

  December 12, 2022

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates the possibility of dtc p0299 due to a stuck open Charge Air Bypass Valve

  Associated Products (16)

  2022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet Blazer2022 GMC Acadia2021 Buick Envision2021 Cadillac CT42021 Cadillac CT52021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 GMC Acadia
  Associated Documents

  • DownloadMC-10227669-0001.pdf↗
• November 18, 2022•Document ID: 10227241

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

  Mfr Comm. #:

  20-NA-138

  Date Added:

  December 6, 2022

  Manufacturer:

  CHEVROLET

  Summary

  This bulletin provides information on Policies Applicable to All U.S. Dealers for Engine and Transmission Assembly Replacement Under Warranty, Policy or Customer Enthusiasm and information on Submission of Warranty Transaction in Global Warranty Management.

  Associated Products (89)

  2023 Buick Enclave2023 Buick Encore2023 Buick Encore GX2023 Buick Envision2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Cadillac XT42023 Cadillac XT52023 Cadillac XT62023 Chevrolet Blazer2023 Chevrolet Camaro2023 Chevrolet Colorado2023 Chevrolet Corvette2023 Chevrolet Equinox2023 Chevrolet Malibu2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 Chevrolet Trailblazer+ 69 more
  Associated Documents

  • DownloadMC-10227241-0001.pdf↗
• November 14, 2022•Document ID: 10227664

  Service Bulletin/Repair Instructions
  LANE DEPARTURE; STEERING

  Mfr Comm. #:

  PIT5481H

  Date Added:

  December 12, 2022

  Manufacturer:

  GMC

  Summary

  This Preliminary Information communication provides information to the technician with additional information on the functionality of Lane Keep Assist. Starting with 2016 model year Lane Keep Assist Regular Production Option Code (UHX) replaced Lane Departure Warning Regular Production Option Code (UFL). Lane Keep Assist is designed to assist the driver in keeping the vehicle from drifting out of a driving lane that has clearly identified markings. The electric power steering provides a gentle steering correction if a lane marking has been crossed and the driver has not actively responded.

  Associated Products (15)

  2023 Cadillac Escalade ESV2023 Chevrolet Blazer2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 GMC Yukon XL2022 Cadillac Escalade ESV2022 Chevrolet Blazer2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 GMC Yukon XL2021 Cadillac Escalade ESV2021 Chevrolet Blazer2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Yukon XL
  Associated Documents

  • DownloadMC-10227664-0001.pdf↗
• November 10, 2022•Document ID: 10227663

  Service Bulletin/Repair Instructions
  FUEL SYSTEM, OTHER

  Mfr Comm. #:

  PIP5824B

  Date Added:

  December 12, 2022

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates a possible issue with the active fuel management rockers causing a misfire and the correction for this concern.

  Associated Products (22)

  2023 Cadillac CT52023 Cadillac XT52023 Cadillac XT62023 Chevrolet Blazer2023 Chevrolet Camaro2023 GMC Acadia2022 Cadillac CT52022 Cadillac XT52022 Cadillac XT62022 Chevrolet Blazer2022 Chevrolet Camaro2022 Chevrolet Colorado2022 GMC Acadia2022 GMC Canyon2021 Cadillac CT52021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 Chevrolet Camaro2021 Chevrolet Colorado+ 2 more
  Associated Documents

  • DownloadMC-10227663-0001.pdf↗
• November 9, 2022•Document ID: 10227056

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  22-NA-074

  Date Added:

  December 3, 2022

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system.

  Associated Products (97)

  2023 Buick Enclave2023 Buick Encore2023 Buick Encore GX2023 Buick Envision2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Cadillac XT42023 Cadillac XT52023 Cadillac XT62023 Chevrolet Blazer2023 Chevrolet Camaro2023 Chevrolet Colorado2023 Chevrolet Corvette2023 Chevrolet Equinox2023 Chevrolet Malibu2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 Chevrolet Trailblazer+ 77 more
  Associated Documents

  • DownloadMC-10227056-0001.pdf↗
• November 4, 2022•Document ID: 10226118

  Service Bulletin/Repair Instructions
  EQUIPMENT; ELECTRICAL SYSTEM

  Mfr Comm. #:

  22-NA-127

  Date Added:

  November 9, 2022

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides repair information on release of Radio Software Version V160 Update to correct customer concerns of radio software issues.

  Associated Products (31)

  2022 Buick Enclave2022 Buick Encore GX2022 Buick Envision2022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet Blazer2022 Chevrolet Bolt EV2022 Chevrolet Camaro2022 Chevrolet Corvette2022 Chevrolet Equinox2022 Chevrolet Malibu2022 Chevrolet Trailblazer2022 Chevrolet Traverse2022 GMC Acadia2022 GMC Terrain2021 Buick Encore GX2021 Buick Envision2021 Cadillac XT42021 Cadillac XT5+ 11 more
  Associated Documents

  • DownloadMC-10226118-0001.pdf↗