Chevrolet Trailblazer Service Bulletins (2023)

485 manufacturer communications on file.

• November 7, 2023•Document ID: 10245401

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  20-NA-120

  Date Added:

  November 22, 2023

  Manufacturer:

  BUICK

  Summary

  This informational bulletin explains how to check if the pulley and/or drive chain has any damage caused by low fluid or a code set that causes the transmission to default maxing out pressure.

  Associated Products (15)

  2024 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 Trailblazer2020 Buick Encore GX2020 Chevrolet Malibu2019 Chevrolet Malibu
  Associated Documents

  • DownloadMC-10245401-0001.pdf↗
• November 6, 2023•Document ID: 10245395

  Service Bulletin/Repair Instructions
  POWER TRAIN; SUSPENSION; STEERING; ENGINE AND ENGINE COOLING; WHEELS

  Mfr Comm. #:

  03-00-91-001I

  Date Added:

  November 22, 2023

  Manufacturer:

  GMC

  Summary

  This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure when diagnosing vibration concerns.

  Associated Products (958)

  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 Bolt EV2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Malibu2024 Chevrolet Silverado+ 938 more
  Associated Documents

  • DownloadMC-10245395-0001.pdf↗
• November 2, 2023•Document ID: 10245352

  Service Bulletin/Repair Instructions
  EQUIPMENT; EXTERIOR LIGHTING

  Mfr Comm. #:

  23-NA-086

  Date Added:

  November 20, 2023

  Manufacturer:

  CHEVROLET

  Summary

  This informational bulletin provides information on dark spots in the headlamp pattern when the vehicle is pulled up to a wall or garage.

  Associated Products (22)

  2024 Buick Enclave2024 Buick Encore GX2024 Buick Envista2024 Chevrolet Blazer2024 Chevrolet Trailblazer2024 Chevrolet Traverse2024 Chevrolet Trax2023 Buick Enclave2023 Buick Encore GX2023 Chevrolet Blazer2023 Chevrolet Trailblazer2023 Chevrolet Traverse2022 Buick Enclave2022 Buick Encore2022 Buick Encore GX2022 Chevrolet Trailblazer2022 Chevrolet Traverse2021 Buick Encore2021 Buick Encore GX2021 Chevrolet Trailblazer+ 2 more
  Associated Documents

  • DownloadMC-10245352-0001.pdf↗
• October 30, 2023•Document ID: 10245250

  Service Bulletin/Repair Instructions
  WHEELS

  Mfr Comm. #:

  20-NA-159

  Date Added:

  November 15, 2023

  Manufacturer:

  GMC

  Summary

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

  Associated Products (500)

  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 Bolt EV2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Malibu2024 Chevrolet Silverado+ 480 more
  Associated Documents

  • DownloadMC-10245250-0001.pdf↗
• October 26, 2023•Document ID: 10246025

  Service Bulletin/Repair Instructions
  COMMUNICATION:MANUFACTURER TELEMATICS

  Mfr Comm. #:

  PIC6486C

  Date Added:

  December 4, 2023

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates to dealer that GM is aware of the issue and is working on a resolution.

  Associated Products (25)

  2024 Chevrolet Trax2023 Buick Encore GX2023 Chevrolet Blazer2023 Chevrolet Camaro2023 Chevrolet Equinox2023 Chevrolet Malibu2023 Chevrolet Silverado2023 Chevrolet Trailblazer2023 Chevrolet Traverse2023 Chevrolet Trax2023 GMC Acadia2023 GMC Sierra2023 GMC Terrain2022 Buick Encore GX2022 Chevrolet Blazer2022 Chevrolet Camaro2022 Chevrolet Equinox2022 Chevrolet Malibu2022 Chevrolet Silverado2022 Chevrolet Trailblazer+ 5 more
  Associated Documents

  • DownloadMC-10246025-0001.pdf↗
• October 26, 2023•Document ID: 10246022

  Service Bulletin/Repair Instructions
  POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)

  Mfr Comm. #:

  PIP5944

  Date Added:

  December 4, 2023

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary Information communication advises the technician to determine if the incorrect part number TCM has been installed causing DTC P30D9 to set

  Associated Products (9)

  2023 Buick Encore2023 Chevrolet Trailblazer2022 Buick Encore2022 Chevrolet Trailblazer2021 Buick Encore2021 Chevrolet Trailblazer2020 Buick Encore2020 Chevrolet Malibu2019 Chevrolet Malibu
  Associated Documents

  • DownloadMC-10246022-0001.pdf↗
• October 25, 2023•Document ID: 10245248

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; EQUIPMENT

  Mfr Comm. #:

  23-NA-189

  Date Added:

  November 15, 2023

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin assists technicians in setting up PicoScope hardware/software to monitor CAN bus traffic (voltage patterns) to aid Technical Assistance (TAC) and Field Service Engineers (FSEs) in diagnosing electrical issues present on network communication circuits.

  Associated Products (199)

  2024 BrightDrop Zevo2024 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 Bolt EV2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Malibu+ 179 more
  Associated Documents

  • DownloadMC-10245248-0001.pdf↗
• October 11, 2023•Document ID: 10244326

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

  Mfr Comm. #:

  05-00-89-029F

  Date Added:

  October 29, 2023

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information on General Motors Dealership Critical Equipment Requirements and Recommendations.

  Associated Products (540)

  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 Bolt EV2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Malibu2024 Chevrolet Silverado+ 520 more
  Associated Documents

  • DownloadMC-10244326-0001.pdf↗
• October 6, 2023•Document ID: 10244274

  Service Bulletin/Repair Instructions
  WHEELS

  Mfr Comm. #:

  17-NA-170

  Date Added:

  October 25, 2023

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides information about the Hunter wheel Road Force balancers that should be utilized for all repairs requiring balance and Road Force measurement.

  Associated Products (1165)

  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 Bolt EV2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Malibu2024 Chevrolet Silverado+ 1145 more
  Associated Documents

  • DownloadMC-10244274-0001.pdf↗
• October 6, 2023•Document ID: 10244273

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  01-06-01-011O

  Date Added:

  October 25, 2023

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.

  Associated Products (841)

  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 Silverado2024 Chevrolet Suburban2024 Chevrolet Tahoe+ 821 more
  Associated Documents

  • DownloadMC-10244273-0001.pdf↗
• October 3, 2023•Document ID: 10244315

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

  Mfr Comm. #:

  99-00-89-019Y

  Date Added:

  October 26, 2023

  Manufacturer:

  CHEVROLET

  Summary

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

  Associated Products (420)

  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 Bolt EV2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Malibu2024 Chevrolet Silverado+ 400 more
  Associated Documents

  • DownloadMC-10244315-0001.pdf↗
• October 3, 2023•Document ID: 10244275

  Service Bulletin/Repair Instructions
  SERVICE BRAKES, HYDRAULIC

  Mfr Comm. #:

  19-NA-223

  Date Added:

  October 25, 2023

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information for dealers/technicians on a normal characteristic of Brake Pedal - Excessive Click Noise with Slight Press of the Brake Pedal.

  Associated Products (11)

  2024 Buick Encore GX2024 Buick Envista2024 Chevrolet Trailblazer2024 Chevrolet Trax2023 Buick Encore GX2023 Chevrolet Trailblazer2022 Buick Encore GX2022 Chevrolet Trailblazer2021 Buick Encore GX2021 Chevrolet Trailblazer2020 Buick Encore GX
  Associated Documents

  • DownloadMC-10244275-0001.pdf↗
• October 2, 2023•Document ID: 10244276

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

  Mfr Comm. #:

  22-NA-038

  Date Added:

  October 25, 2023

  Manufacturer:

  GMC

  Summary

  This warranty bulletin provides information on Customer Concern Not Duplicated (CCND) Labor Operation Numbers.

  Associated Products (104)

  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 Bolt EV2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Malibu2024 Chevrolet Silverado+ 84 more
  Associated Documents

  • DownloadMC-10244276-0001.pdf↗
• September 28, 2023•Document ID: 10244202

  Service Bulletin/Repair Instructions
  TIRES; WHEELS

  Mfr Comm. #:

  20-NA-159

  Date Added:

  October 18, 2023

  Manufacturer:

  CADILLAC

  Summary

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

  Associated Products (500)

  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 Bolt EV2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Malibu2024 Chevrolet Silverado+ 480 more
  Associated Documents

  • DownloadMC-10244202-0001.pdf↗
• September 26, 2023•Document ID: 10244201

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

  Mfr Comm. #:

  10-00-89-006J

  Date Added:

  October 18, 2023

  Manufacturer:

  CADILLAC

  Summary

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

  Associated Products (1038)

  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 Express+ 1018 more
  Associated Documents

  • DownloadMC-10244201-0001.pdf↗
• September 26, 2023•Document ID: 10244200

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

  Mfr Comm. #:

  02-00-89-002W

  Date Added:

  October 18, 2023

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides information for dealers/technicians on When and How to Submit a Field Product Report (FPR) (U.S. and Canada Dealers Only).

  Associated Products (903)

  2024 BrightDrop Zevo2024 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 Bolt EV2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Malibu+ 883 more
  Associated Documents

  • DownloadMC-10244200-0001.pdf↗
• September 21, 2023•Document ID: 10244174

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  23-NA-154

  Date Added:

  October 16, 2023

  Manufacturer:

  CADILLAC

  Summary

  This bulletin provides information on Warranty Administration – Required Operating Procedures - 8 Points (U.S. Only).

  Associated Products (420)

  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 Bolt EV2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Malibu2024 Chevrolet Silverado+ 400 more
  Associated Documents

  • DownloadMC-10244174-0001.pdf↗
• September 19, 2023•Document ID: 10243983

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; SERVICE BRAKES

  Mfr Comm. #:

  22-NA-097

  Date Added:

  October 14, 2023

  Manufacturer:

  BUICK

  Summary

  This technical bulletin provides a procedure to test and replace the brake pedal to correct a customer concern that the cruise control will not set, and/or won’t re-engage after braking.

  Associated Products (4)

  2023 Buick Encore GX2023 Chevrolet Trailblazer2022 Buick Encore GX2022 Chevrolet Trailblazer
  Associated Documents

  • DownloadMC-10243983-0001.pdf↗
• September 8, 2023•Document ID: 10242844

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  17-NA-157

  Date Added:

  September 26, 2023

  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 (512)

  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 Silverado2024 Chevrolet Suburban2024 Chevrolet Tahoe+ 492 more
  Associated Documents

  • DownloadMC-10242844-0001.pdf↗
• September 7, 2023•Document ID: 10242980

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  23-NA-058

  Date Added:

  September 30, 2023

  Manufacturer:

  BUICK

  Summary

  This bulletin provides a procedure to test the turbo wastegate regulator valve before replacing the turbo for a possible rattle and/or code concern.

  Associated Products (7)

  2023 Buick Encore GX2023 Chevrolet Trailblazer2022 Buick Encore GX2022 Chevrolet Trailblazer2021 Buick Encore GX2021 Chevrolet Trailblazer2020 Buick Encore GX
  Associated Documents

  • DownloadMC-10242980-0001.pdf↗