Chevrolet Trailblazer Service Bulletins (2024)

418 manufacturer communications on file.

• July 24, 2024•Document ID: 11006290

  Service Bulletin/Repair Instructions
  ENGINE; ELECTRICAL SYSTEM

  Mfr Comm. #:

  12-01-37-001G

  Date Added:

  August 13, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information to dealership personnel on a new refrigerant (R1234yf) for A/C service.

  Associated Products (150)

  2025 Buick Enclave2025 Buick Encore2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac XT52025 Cadillac XT62025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Trailblazer2025 Chevrolet Traverse2025 Chevrolet Trax2025 GMC Acadia2025 GMC Hummer EV Pickup2025 GMC Terrain2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista+ 130 more
  Associated Documents

  • DownloadMC-11006290-0001.pdf↗
• July 22, 2024•Document ID: 11006282

  Service Bulletin/Repair Instructions
  WHEELS

  Mfr Comm. #:

  00-03-10-002M

  Date Added:

  August 13, 2024

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides information on Chemical Staining, Pitting, Corrosion and/or Spotted Appearance of Chromed Aluminum Wheels.

  Associated Products (150)

  2025 Buick Enclave2025 Buick Encore2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac XT52025 Cadillac XT62025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Trailblazer2025 Chevrolet Traverse2025 Chevrolet Trax2025 GMC Acadia2025 GMC Hummer EV Pickup2025 GMC Terrain2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista+ 130 more
  Associated Documents

  • DownloadMC-11006282-0001.pdf↗
• July 17, 2024•Document ID: 11005374

  Service Bulletin/Repair Instructions
  ENGINE; ELECTRICAL SYSTEM

  Mfr Comm. #:

  24-NA-021

  Date Added:

  August 1, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides a procedure to test and replace, if needed, the pressure sensor and/or the oil pump if the codes noted set due to the debris left in the pump during production.

  Associated Products (6)

  2024 Buick Encore GX2024 Buick Envista2024 Chevrolet Trailblazer2024 Chevrolet Trax2023 Buick Encore GX2023 Chevrolet Trailblazer
  Associated Documents

  • DownloadMC-11005374-0001.pdf↗
• July 17, 2024•Document ID: 11005339

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  17-NA-157

  Date Added:

  July 30, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin explains the difference in oil filters for gas engines with new oil pump control systems and the possibilities of what may happen using the incorrect filter.

  Associated Products (125)

  2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac XT42024 Cadillac XT52024 Cadillac XT62024 Chevrolet Blazer2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Malibu2024 Chevrolet Suburban2024 Chevrolet Tahoe2024 Chevrolet Trailblazer+ 105 more
  Associated Documents

  • DownloadMC-11005339-0001.pdf↗
• July 9, 2024•Document ID: 11005311

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  99-04-20-002O

  Date Added:

  July 30, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal operation.

  Associated Products (135)

  2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Lyriq2024 Cadillac XT42024 Cadillac XT52024 Cadillac XT62024 Chevrolet Blazer2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Malibu2024 Chevrolet Suburban2024 Chevrolet Tahoe+ 115 more
  Associated Documents

  • DownloadMC-11005311-0001.pdf↗
• June 29, 2024•Document ID: 11004727

  Service Bulletin/Repair Instructions
  FUEL/PROPULSION SYSTEM

  Mfr Comm. #:

  04-06-04-051I

  Date Added:

  July 16, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.

  Associated Products (140)

  2025 Buick Enclave2025 Buick Encore2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac XT52025 Cadillac XT62025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Trailblazer2025 Chevrolet Traverse2025 Chevrolet Trax2025 GMC Acadia2025 GMC Hummer EV Pickup2025 GMC Terrain2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista+ 120 more
  Associated Documents

  • DownloadMC-11004727-0001.pdf↗
• June 28, 2024•Document ID: 11004941

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  24-NA-123

  Date Added:

  July 18, 2024

  Manufacturer:

  BUICK

  Summary

  This service bulletin advises the technician that the purge pump part number has changed and limited supply.

  Associated Products (51)

  2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac XT52025 Chevrolet Trailblazer2025 Chevrolet Traverse2025 Chevrolet Trax2025 GMC Acadia2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac XT42024 Cadillac XT52024 Chevrolet Blazer2024 Chevrolet Colorado2024 Chevrolet Trailblazer2024 Chevrolet Traverse2024 Chevrolet Trax+ 31 more
  Associated Documents

  • DownloadMC-11004941-0001.pdf↗
• June 28, 2024•Document ID: 11004761

  Service Bulletin/Repair Instructions
  FUEL/PROPULSION SYSTEM; ENGINE

  Mfr Comm. #:

  16-NA-383

  Date Added:

  July 16, 2024

  Manufacturer:

  GMC

  Summary

  This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build-up.

  Associated Products (139)

  2025 Buick Enclave2025 Buick Encore2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac XT52025 Cadillac XT62025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Trailblazer2025 Chevrolet Traverse2025 Chevrolet Trax2025 GMC Acadia2025 GMC Terrain2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT4+ 119 more
  Associated Documents

  • DownloadMC-11004761-0001.pdf↗
• June 18, 2024•Document ID: 11004624

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  22-NA-070

  Date Added:

  July 12, 2024

  Manufacturer:

  GMC

  Summary

  This service bulletin provides information for replacement parts traceability (RPT) process to aid in tracking part replacements.

  Associated Products (150)

  2025 Buick Enclave2025 Buick Encore2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac XT52025 Cadillac XT62025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Trailblazer2025 Chevrolet Traverse2025 Chevrolet Trax2025 GMC Acadia2025 GMC Hummer EV Pickup2025 GMC Terrain2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista+ 130 more
  Associated Documents

  • DownloadMC-11004624-0001.pdf↗
• June 18, 2024•Document ID: 11001820

  Service Campaign
  UNKNOWN OR OTHER

  Mfr Comm. #:

  N242446290-01

  Date Added:

  June 18, 2024

  Manufacturer:

  CADILLAC

  Summary

  Service Update - certain vehicles may have a condition in which the clutch backing plate retaining ring and/or the clutch piston retaining ring inside the transmission are out of specification. Dealers are to replace the clutch piston housing.

  Associated Products (9)

  2024 Buick Encore GX2024 Cadillac XT42024 Cadillac XT52024 Cadillac XT62024 Chevrolet Blazer2024 Chevrolet Trailblazer2024 Chevrolet Traverse2024 GMC Acadia2024 GMC Terrain
  Associated Documents

  • DownloadMC-11001820-0001.pdf↗
• June 17, 2024•Document ID: 11004558

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  22-NA-018

  Date Added:

  July 12, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information for the Global Warranty Management (GWM) Warranty Parts Center (WPC) Part Photo Return Process (U.S. Dealers Only).

  Associated Products (150)

  2025 Buick Enclave2025 Buick Encore2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac XT52025 Cadillac XT62025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Trailblazer2025 Chevrolet Traverse2025 Chevrolet Trax2025 GMC Acadia2025 GMC Hummer EV Pickup2025 GMC Terrain2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista+ 130 more
  Associated Documents

  • DownloadMC-11004558-0001.pdf↗
• June 17, 2024•Document ID: 11004557

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  18-NA-099

  Date Added:

  July 12, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim.

  Associated Products (150)

  2025 Buick Enclave2025 Buick Encore2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac XT52025 Cadillac XT62025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Trailblazer2025 Chevrolet Traverse2025 Chevrolet Trax2025 GMC Acadia2025 GMC Hummer EV Pickup2025 GMC Terrain2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista+ 130 more
  Associated Documents

  • DownloadMC-11004557-0001.pdf↗
• June 14, 2024•Document ID: 11002441

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; ENGINE

  Mfr Comm. #:

  18-NA-125

  Date Added:

  June 28, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information for engine oil life monitor operation calculation.

  Associated Products (150)

  2025 Buick Enclave2025 Buick Encore2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac XT52025 Cadillac XT62025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Trailblazer2025 Chevrolet Traverse2025 Chevrolet Trax2025 GMC Acadia2025 GMC Hummer EV Pickup2025 GMC Terrain2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista+ 130 more
  Associated Documents

  • DownloadMC-11002441-0001.pdf↗
• June 13, 2024•Document ID: 11001649

  Service Campaign
  UNKNOWN OR OTHER

  Mfr Comm. #:

  N242446290

  Date Added:

  June 13, 2024

  Manufacturer:

  GMC

  Summary

  Service Update - Certain vehicles may have a condition in which the clutch backing plate retaining ring and/or the clutch piston retaining ring inside the transmission are out of specification. Dealers are to replace the clutch piston housing.

  Associated Products (9)

  2024 Buick Encore GX2024 Cadillac XT42024 Cadillac XT52024 Cadillac XT62024 Chevrolet Blazer2024 Chevrolet Trailblazer2024 Chevrolet Traverse2024 GMC Acadia2024 GMC Terrain
  Associated Documents

  • DownloadMC-11001649-0001.pdf↗
• June 8, 2024•Document ID: 11001972

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; UNKNOWN OR OTHER

  Mfr Comm. #:

  21-NA-068

  Date Added:

  June 22, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This warranty administration bulletin provides policy information requirements applicable to key fob replacement under the New Vehicle Limited Warranty or under a Replacement Parts Warranty on 2017-2022 and newer model year vehicles with RPO ATH and AVJ.

  Associated Products (138)

  2025 Buick Enclave2025 Buick Encore2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Trailblazer2025 Chevrolet Traverse2025 Chevrolet Trax2025 GMC Acadia2025 GMC Hummer EV Pickup2025 GMC Terrain2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT5+ 118 more
  Associated Documents

  • DownloadMC-11001972-0001.pdf↗
• June 6, 2024•Document ID: 11002312

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  24-NA-098

  Date Added:

  June 25, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491, E4492, or E6961 and resolution information.

  Associated Products (138)

  2025 Buick Enclave2025 Buick Encore2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Trailblazer2025 Chevrolet Traverse2025 Chevrolet Trax2025 GMC Acadia2025 GMC Hummer EV Pickup2025 GMC Terrain2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT5+ 118 more
  Associated Documents

  • DownloadMC-11002312-0001.pdf↗
• June 5, 2024•Document ID: 11002025

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  24-NA-021

  Date Added:

  June 24, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This bulletin provides a procedure to replace the oil pump if the code noted was set do to the debris left in the pump during production.

  Associated Products (6)

  2024 Buick Encore GX2024 Buick Envista2024 Chevrolet Trailblazer2024 Chevrolet Trax2023 Buick Encore GX2023 Chevrolet Trailblazer
  Associated Documents

  • DownloadMC-11002025-0001.pdf↗
• June 5, 2024•Document ID: 11001971

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  20-NA-016

  Date Added:

  June 22, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This Warranty Administration bulletin provides information on customer vehicles concern results in a manufacturer repurchase from the customer, GM depends on the dealership to host and administer the repurchase closing and intake of the returning vehicle.

  Associated Products (135)

  2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Lyriq2024 Cadillac XT42024 Cadillac XT52024 Cadillac XT62024 Chevrolet Blazer2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Malibu2024 Chevrolet Suburban2024 Chevrolet Tahoe+ 115 more
  Associated Documents

  • DownloadMC-11001971-0001.pdf↗
• June 1, 2024•Document ID: 11001787

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  24-NA-009

  Date Added:

  June 18, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin advises the technician to replace valve body first to determine if that is the issue for and if not, to inspect internal parts of transmission for any signs of abnormal wear to correct customer concerns of Loss of Forward gear, slipping, MIL.

  Associated Products (13)

  2025 Chevrolet Trailblazer2024 Buick Encore GX2024 Chevrolet Malibu2024 Chevrolet Trailblazer2023 Buick Encore GX2023 Chevrolet Malibu2023 Chevrolet Trailblazer2022 Buick Encore GX2022 Chevrolet Malibu2022 Chevrolet Trailblazer2021 Buick Encore GX2021 Chevrolet Malibu2021 Chevrolet Trailblazer
  Associated Documents

  • DownloadMC-11001787-0001.pdf↗
• May 30, 2024•Document ID: 11001832

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER; ELECTRICAL SYSTEM

  Mfr Comm. #:

  24-NA-084

  Date Added:

  June 18, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides repair information to correct a customer concern of software related issues with release of Radio Software Version 169.3.

  Associated Products (4)

  2024 Buick Encore GX2024 Buick Envista2024 Chevrolet Trailblazer2024 Chevrolet Trax
  Associated Documents

  • DownloadMC-11001832-0001.pdf↗