Chevrolet Blazer Service Bulletins (2021)

814 manufacturer communications on file.

• 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:

  CHEVROLET

  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 (1116)

  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 Express2023 Chevrolet Malibu2023 Chevrolet Silverado2023 Chevrolet Suburban+ 1096 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 (36)

  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 Silverado2022 Chevrolet Trailblazer2022 Chevrolet Traverse2022 GMC Acadia2022 GMC Sierra2022 GMC Terrain2021 Buick Encore GX2021 Buick Envision+ 16 more
  Associated Documents

  • DownloadMC-10226118-0001.pdf↗
• October 28, 2022•Document ID: 10225732

  Service Bulletin/Repair Instructions
  WHEELS; SERVICE BRAKES, HYDRAULIC

  Mfr Comm. #:

  17-NA-271

  Date Added:

  November 3, 2022

  Manufacturer:

  CADILLAC

  Summary

  This bulletin provides a procedure to clean the back side of the rims and rotors and to correct the customers concern of wheel clicking.

  Associated Products (87)

  2023 Buick Enclave2023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Cadillac XT52023 Cadillac XT62023 Chevrolet Blazer2023 Chevrolet Camaro2023 Chevrolet Corvette2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 Chevrolet Traverse2023 GMC Acadia2023 GMC Yukon2022 Buick Enclave2022 Cadillac Escalade2022 Cadillac Escalade ESV2022 Cadillac XT52022 Cadillac XT62022 Chevrolet Blazer2022 Chevrolet Camaro+ 67 more
  Associated Documents

  • DownloadMC-10225732-0001.pdf↗
• October 24, 2022•Document ID: 10225669

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  22-NA-204

  Date Added:

  November 3, 2022

  Manufacturer:

  GMC

  Summary

  This technical bulletin provides possible engine noises that may require the engine to be replace if such noises have been validated to be coming from the areas indicated in the bulletin.

  Associated Products (14)

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

  • DownloadMC-10225669-0001.pdf↗
• October 20, 2022•Document ID: 10225661

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; ELECTRICAL SYSTEM

  Mfr Comm. #:

  21-NA-054

  Date Added:

  November 3, 2022

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides repair information to correct various functional concerns of the Instrument Cluster and DTC U0155.

  Associated Products (16)

  2023 Buick Enclave2023 Chevrolet Blazer2023 Chevrolet Camaro2023 Chevrolet Traverse2023 GMC Acadia2022 Buick Enclave2022 Chevrolet Blazer2022 Chevrolet Camaro2022 Chevrolet Malibu2022 Chevrolet Traverse2022 GMC Acadia2022 GMC Terrain2021 Chevrolet Blazer2021 Chevrolet Camaro2021 Chevrolet Malibu2021 GMC Acadia
  Associated Documents

  • DownloadMC-10225661-0001.pdf↗
• October 19, 2022•Document ID: 10226386

  Service Bulletin/Repair Instructions
  LATCHES/LOCKS/LINKAGES:DOORS:LOCK

  Mfr Comm. #:

  PIT5843A

  Date Added:

  November 21, 2022

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates that a vehicle may come to the dealer with concerns of various warning messages, possibly the door locks cycling, passive entry inoperative or other concerns. The technician is instructed to inspect G401 for loose or missing terminals and to inspect G405.

  Associated Products (2)

  2021 Chevrolet Blazer2020 Chevrolet Blazer
  Associated Documents

  • DownloadMC-10226386-0001.pdf↗
• October 19, 2022•Document ID: 10225658

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  PIE0699A

  Date Added:

  November 3, 2022

  Manufacturer:

  CHEVROLET

  Summary

  This engineering information (EI) closure ends the need for gathering information from the field in regards to Service AWD Lamp illuminated on driver information center (DIC).

  Associated Products (18)

  2023 Buick Enclave2023 Cadillac XT52023 Cadillac XT62023 Chevrolet Blazer2023 Chevrolet Traverse2023 GMC Acadia2022 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-10225658-0001.pdf↗
• October 19, 2022•Document ID: 10225615

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  22-NA-205

  Date Added:

  November 2, 2022

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information on Module Harvesting.

  Associated Products (943)

  2023 BrightDrop Zevo2023 Buick Enclave2023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Cadillac Lyriq2023 Cadillac XT42023 Cadillac XT52023 Cadillac XT62023 Chevrolet Blazer2023 Chevrolet Bolt EUV2023 Chevrolet Bolt EV2023 Chevrolet Camaro2023 Chevrolet Corvette2023 Chevrolet Equinox2023 Chevrolet Silverado2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 Chevrolet Traverse2023 GMC Acadia2023 GMC Hummer EV Pickup+ 923 more
  Associated Documents

  • DownloadMC-10225615-0001.pdf↗
• October 17, 2022•Document ID: 10226379

  Service Bulletin/Repair Instructions
  BACK OVER PREVENTION: SENSING SYSTEM: CAMERA

  Mfr Comm. #:

  PIT5940A

  Date Added:

  November 21, 2022

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates that a customer may notice that the gridlines on the backup camera are very dim. They may mention that this occurred after an OTA update. The dealer technician is advised to perform no repairs. The technician is advised that engineering is looking into a resolution and the resolution will be communicated through this PI or a bulletin when it becomes available.

  Associated Products (50)

  2023 Buick Enclave2023 Buick Encore GX2023 Buick Envision2023 Cadillac XT42023 Cadillac XT52023 Cadillac XT62023 Chevrolet Blazer2023 Chevrolet Bolt EUV2023 Chevrolet Bolt EV2023 Chevrolet Camaro2023 Chevrolet Malibu2023 Chevrolet Silverado2023 Chevrolet Trailblazer2023 Chevrolet Traverse2023 GMC Acadia2023 GMC Sierra2022 Buick Enclave2022 Buick Encore GX2022 Buick Envision2022 Cadillac XT4+ 30 more
  Associated Documents

  • DownloadMC-10226379-0001.pdf↗
• October 10, 2022•Document ID: 10226367

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  PIT5847G

  Date Added:

  November 21, 2022

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates that a vehicle may come into the dealer with various concerns which may include a service engine light or various warning messages on the DIC. The technician is instructed to inspect a wiring harness for chaffing on a bracket which is located beneath the battery tray, at a transmission stud and at the transmission oil cooler line bracket. If damage to the harness is found the technician is instructed to repair the damaged wiring and secure the harness away from the bracket so that future damage to the harness will be eliminated.

  Associated Products (19)

  2023 Cadillac XT52023 Cadillac XT62023 Chevrolet Blazer2023 GMC Acadia2022 Cadillac XT52022 Cadillac XT62022 Chevrolet Blazer2022 GMC Acadia2021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 GMC Acadia2020 Cadillac XT52020 Cadillac XT62020 Chevrolet Blazer2020 GMC Acadia2019 Cadillac XT52019 Chevrolet Blazer2019 GMC Acadia
  Associated Documents

  • DownloadMC-10226367-0001.pdf↗
• October 7, 2022•Document ID: 10224820

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

  Mfr Comm. #:

  10-00-89-006I

  Date Added:

  October 28, 2022

  Manufacturer:

  CADILLAC

  Summary

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

  Associated Products (1040)

  2023 Buick Enclave2023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Cadillac Lyriq2023 Cadillac XT42023 Cadillac XT52023 Cadillac XT62023 Chevrolet Blazer2023 Chevrolet Bolt EUV2023 Chevrolet Bolt EV2023 Chevrolet Camaro2023 Chevrolet Corvette2023 Chevrolet Equinox2023 Chevrolet Silverado2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 Chevrolet Traverse2023 GMC Acadia2023 GMC Hummer EV Pickup2023 GMC Sierra+ 1020 more
  Associated Documents

  • DownloadMC-10224820-0001.pdf↗
• October 5, 2022•Document ID: 10224832

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  PIE0720

  Date Added:

  October 28, 2022

  Manufacturer:

  CADILLAC

  Summary

  This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to Vehicle Will Not Move When in Drive, Neutral and/or Reverse and DTCs P0746, P0747 Set.

  Associated Products (29)

  2021 Buick Enclave2021 Buick Encore2021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 Chevrolet Traverse2021 GMC Acadia2021 GMC Terrain2020 Buick Enclave2020 Buick Encore2020 Cadillac XT42020 Cadillac XT52020 Cadillac XT62020 Chevrolet Blazer2020 Chevrolet Equinox2020 Chevrolet Traverse2020 GMC Acadia2020 GMC Terrain2019 Buick Enclave+ 9 more
  Associated Documents

  • DownloadMC-10224832-0001.pdf↗
• October 4, 2022•Document ID: 10224831

  Service Bulletin/Repair Instructions
  STRUCTURE

  Mfr Comm. #:

  99-00-89-019X

  Date Added:

  October 28, 2022

  Manufacturer:

  GMC

  Summary

  This Warranty Administration bulletin provides information on the Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program.

  Associated Products (381)

  2023 BrightDrop Zevo2023 Buick Enclave2023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Cadillac Lyriq2023 Cadillac XT42023 Cadillac XT52023 Cadillac XT62023 Chevrolet Blazer2023 Chevrolet Bolt EUV2023 Chevrolet Bolt EV2023 Chevrolet Camaro2023 Chevrolet Corvette2023 Chevrolet Equinox2023 Chevrolet Silverado2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 Chevrolet Traverse2023 GMC Acadia2023 GMC Hummer EV Pickup+ 361 more
  Associated Documents

  • DownloadMC-10224831-0001.pdf↗
• September 28, 2022•Document ID: 10224304

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT5698C

  Date Added:

  October 17, 2022

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates additional information on how a LIN bus operates and diagnostic tips when working on a LIN bus.

  Associated Products (337)

  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 Silverado2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 Chevrolet Trailblazer+ 317 more
  Associated Documents

  • DownloadMC-10224304-0001.pdf↗
• September 28, 2022•Document ID: 10222839

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

  Mfr Comm. #:

  22-NA-195

  Date Added:

  October 13, 2022

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides information on Handling Requests for Modifications to Permanently Import/Export Vehicles Between the U.S. and Canada.

  Associated Products (942)

  2023 Buick Enclave2023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Cadillac Lyriq2023 Cadillac XT42023 Cadillac XT52023 Cadillac XT62023 Chevrolet Blazer2023 Chevrolet Bolt EUV2023 Chevrolet Bolt EV2023 Chevrolet Camaro2023 Chevrolet Corvette2023 Chevrolet Equinox2023 Chevrolet Silverado2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 Chevrolet Traverse2023 GMC Acadia2023 GMC Hummer EV Pickup2023 GMC Sierra+ 922 more
  Associated Documents

  • DownloadMC-10222839-0001.pdf↗
• September 28, 2022•Document ID: 10222837

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  22-NA-193

  Date Added:

  October 13, 2022

  Manufacturer:

  CHEVROLET

  Summary

  This informational bulletin explains to the tech on where to look for a possible concern with the rockers causing the MIL to illuminate.

  Associated Products (59)

  2022 Cadillac CT52022 Cadillac XT52022 Cadillac XT62022 Chevrolet Camaro2022 Chevrolet Colorado2022 GMC Acadia2022 GMC Canyon2021 Cadillac CT52021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 Chevrolet Camaro2021 Chevrolet Colorado2021 GMC Acadia2021 GMC Canyon2020 Buick Regal2020 Cadillac CT52020 Cadillac CT62020 Cadillac XT52020 Cadillac XT6+ 39 more
  Associated Documents

  • DownloadMC-10222837-0001.pdf↗
• September 27, 2022•Document ID: 10222841

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PI0592G

  Date Added:

  October 13, 2022

  Manufacturer:

  CADILLAC

  Summary

  This preliminary information (PI) provides information om Service Programming System (SPS) Error Codes (E4398, E4399, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491 or E6961).

  Associated Products (696)

  2023 Buick Enclave2023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Cadillac Lyriq2023 Cadillac XT42023 Cadillac XT52023 Cadillac XT62023 Chevrolet Blazer2023 Chevrolet Bolt EUV2023 Chevrolet Bolt EV2023 Chevrolet Camaro2023 Chevrolet Corvette2023 Chevrolet Equinox2023 Chevrolet Silverado2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 Chevrolet Traverse2023 GMC Acadia2023 GMC Hummer EV Pickup2023 GMC Sierra+ 676 more
  Associated Documents

  • DownloadMC-10222841-0001.pdf↗
• September 16, 2022•Document ID: 10222777

  Service Bulletin/Repair Instructions
  SERVICE BRAKES, HYDRAULIC; ENGINE AND ENGINE COOLING; POWER TRAIN; SUSPENSION; STEERING

  Mfr Comm. #:

  15-00-89-004E

  Date Added:

  October 11, 2022

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.

  Associated Products (761)

  2023 Buick Enclave2023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Cadillac Lyriq2023 Cadillac XT42023 Cadillac XT52023 Cadillac XT62023 Chevrolet Blazer2023 Chevrolet Bolt EUV2023 Chevrolet Bolt EV2023 Chevrolet Camaro2023 Chevrolet Corvette2023 Chevrolet Equinox2023 Chevrolet Silverado2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 Chevrolet Traverse2023 GMC Acadia2023 GMC Hummer EV Pickup2023 GMC Sierra+ 741 more
  Associated Documents

  • DownloadMC-10222777-0001.pdf↗
• September 16, 2022•Document ID: 10222776

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  13-08-116-001H

  Date Added:

  October 11, 2022

  Manufacturer:

  CADILLAC

  Summary

  The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them.

  Associated Products (866)

  2023 Buick Enclave2023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Cadillac Lyriq2023 Cadillac XT42023 Cadillac XT52023 Cadillac XT62023 Chevrolet Blazer2023 Chevrolet Bolt EUV2023 Chevrolet Bolt EV2023 Chevrolet Camaro2023 Chevrolet Corvette2023 Chevrolet Equinox2023 Chevrolet Silverado2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 Chevrolet Traverse2023 GMC Acadia2023 GMC Hummer EV Pickup2023 GMC Sierra+ 846 more
  Associated Documents

  • DownloadMC-10222776-0001.pdf↗
• September 16, 2022•Document ID: 10222771

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  07-06-01-016H

  Date Added:

  October 11, 2022

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides information on Internal Engine Noise or Damage After Oil Filter Replacement.

  Associated Products (568)

  2023 Buick Enclave2023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Cadillac XT42023 Cadillac XT52023 Cadillac XT62023 Chevrolet Blazer2023 Chevrolet Camaro2023 Chevrolet Corvette2023 Chevrolet Equinox2023 Chevrolet Silverado2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 Chevrolet Traverse2023 GMC Acadia2023 GMC Sierra2023 GMC Yukon2022 Buick Enclave2022 Buick Encore2022 Buick Encore GX+ 548 more
  Associated Documents

  • DownloadMC-10222771-0001.pdf↗