Chevrolet Trailblazer Service Bulletins (2009)

965 manufacturer communications on file.

• September 9, 2025•Document ID: 11023091

  Other
  UNKNOWN OR OTHER

  Mfr Comm. #:

  13598

  Date Added:

  September 10, 2025

  Manufacturer:

  GMC

  Summary

  New Vehicle Monitoring Programs Section in IVH

  Associated Products (843)

  2026 Buick Enclave2026 Buick Encore GX2026 Buick Envision2026 Buick Envista2026 Cadillac Celestiq2026 Cadillac CT42026 Cadillac CT52026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Cadillac XT42026 Cadillac XT52026 Cadillac XT62026 Chevrolet Blazer2026 Chevrolet BrightDrop2026 Chevrolet Colorado+ 823 more
  Associated Documents

  • DownloadMC-11023091-0001.pdf↗
• August 7, 2025•Document ID: 11021792

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC5650M

  Date Added:

  August 12, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble Codes B3055, B3060, B3935, C0750, C0755, C0760, C0765, and/or C0775.

  Associated Products (896)

  2026 Buick Enclave2026 Buick Encore GX2026 Buick Envision2026 Buick Envista2026 Cadillac Celestiq2026 Cadillac CT42026 Cadillac CT52026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Cadillac XT42026 Cadillac XT52026 Cadillac XT62026 Chevrolet Blazer2026 Chevrolet BrightDrop2026 Chevrolet Colorado+ 876 more
  Associated Documents

  • DownloadMC-11021792-0001.pdf↗
• July 18, 2025•Document ID: 11020816

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP5601C

  Date Added:

  July 23, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.

  Associated Products (726)

  2025 Buick Enclave2025 Buick Encore2025 Buick Encore GX2025 Buick Envision2025 Buick Envista2025 Cadillac Celestiq2025 Cadillac CT42025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac Optiq2025 Cadillac XT42025 Cadillac XT52025 Cadillac XT62025 Chevrolet Blazer2025 Chevrolet BrightDrop2025 Chevrolet Colorado2025 Chevrolet Corvette+ 706 more
  Associated Documents

  • DownloadMC-11020816-0001.pdf↗
• May 30, 2025•Document ID: 11019074

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT5074R

  Date Added:

  June 4, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.

  Associated Products (1004)

  2026 Buick Enclave2026 Buick Encore GX2026 Buick Envision2026 Buick Envista2026 Cadillac Celestiq2026 Cadillac CT42026 Cadillac CT52026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Cadillac XT42026 Cadillac XT52026 Cadillac XT62026 Chevrolet Blazer2026 Chevrolet BrightDrop2026 Chevrolet Colorado+ 984 more
  Associated Documents

  • DownloadMC-11019074-0001.pdf↗
• May 30, 2025•Document ID: 11019073

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT5074R

  Date Added:

  June 4, 2025

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.

  Associated Products (1004)

  2026 Buick Enclave2026 Buick Encore GX2026 Buick Envision2026 Buick Envista2026 Cadillac Celestiq2026 Cadillac CT42026 Cadillac CT52026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Cadillac XT42026 Cadillac XT52026 Cadillac XT62026 Chevrolet Blazer2026 Chevrolet BrightDrop2026 Chevrolet Colorado+ 984 more
  Associated Documents

  • DownloadMC-11019073-0001.pdf↗
• May 30, 2025•Document ID: 11019072

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT5074R

  Date Added:

  June 4, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.

  Associated Products (1004)

  2026 Buick Enclave2026 Buick Encore GX2026 Buick Envision2026 Buick Envista2026 Cadillac Celestiq2026 Cadillac CT42026 Cadillac CT52026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Cadillac XT42026 Cadillac XT52026 Cadillac XT62026 Chevrolet Blazer2026 Chevrolet BrightDrop2026 Chevrolet Colorado+ 984 more
  Associated Documents

  • DownloadMC-11019072-0001.pdf↗
• February 20, 2025•Document ID: 11014455

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP5358D

  Date Added:

  February 25, 2025

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary Information communication provides information to the technician about vehicles that have an unusual noise and is difficult to identify, isolate or pinpoint. Technician should get record a sound clip or take a video of the noise for assessment by engineering. Technician will need to call General Motors Technical Assistance Center for further assistance.

  Associated Products (801)

  2025 Chevrolet Silverado2024 Chevrolet Silverado2023 Chevrolet Silverado2022 Buick Enclave2022 Buick Encore2022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 Cadillac Escalade2022 Cadillac Escalade ESV2022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet Blazer2022 Chevrolet Bolt EV2022 Chevrolet Camaro2022 Chevrolet Colorado2022 Chevrolet Equinox2022 Chevrolet Express2022 Chevrolet Malibu+ 781 more
  Associated Documents

  • DownloadMC-11014455-0001.pdf↗
• December 7, 2024•Document ID: 11011782

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT5074Q

  Date Added:

  December 12, 2024

  Manufacturer:

  BUICK

  Summary

  This Preliminary Information communication provides information to the technician about the use of J-35616-64B terminal test probe, replacement terminals, and terminated leads. The J-35616-64B is the latest test probe released for checking tension or probing the .64 series terminals. The test probe terminal has been released in the terminal repair kit (J-38125-620H) located in Lear Tray 7 part number 963716-2. There are 5 terminated leads in a package part number is 13505346, which can be ordered through your normal General Motors Customer Care and Aftersales parts channel.

  Associated Products (675)

  2022 Buick Enclave2022 Buick Encore2022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 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 Trailblazer2022 Chevrolet Traverse+ 655 more
  Associated Documents

  • DownloadMC-11011782-0001.pdf↗
• October 25, 2024•Document ID: 11009156

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIP4723J

  Date Added:

  October 25, 2024

  Manufacturer:

  GMC

  Summary

  This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester  and Vehicle Data Recorder tools, giving website address and step by step instructions to complete the update.

  Associated Products (856)

  2022 Buick Enclave2022 Buick Encore2022 Buick Envision2022 Cadillac CT52022 Cadillac Escalade2022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet Blazer2022 Chevrolet Bolt EV2022 Chevrolet Camaro2022 Chevrolet Colorado2022 Chevrolet Corvette2022 Chevrolet Equinox2022 Chevrolet Express2022 Chevrolet Malibu2022 Chevrolet Silverado2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 Chevrolet Trailblazer+ 836 more
  Associated Documents

  • DownloadMC-11009156-0001.pdf↗
• September 27, 2024•Document ID: 11009531

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  04-06-04-051J

  Date Added:

  October 31, 2024

  Manufacturer:

  CHEVROLET

  Summary

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

  Associated Products (795)

  2025 Buick Enclave2025 Buick Encore2025 Buick Encore GX2025 Buick Envision2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac XT42025 Cadillac XT52025 Cadillac XT62025 Chevrolet Blazer2025 Chevrolet Colorado2025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Suburban2025 Chevrolet Tahoe2025 Chevrolet Trailblazer+ 775 more
  Associated Documents

  • DownloadMC-11009531-0001.pdf↗
• September 16, 2024•Document ID: 11009088

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  08-07-30-026I

  Date Added:

  October 24, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information on some vehicles that may rock or move slightly forward or rearward while in Park at start up after cold soak. This condition may be accompanied by a clunk noise. This is a slight movement that is more often seen visually, rather than felt, when viewed from the outside and using the auto-start feature, if equipped.

  Associated Products (789)

  2025 Buick Enclave2025 Buick Encore2025 Buick Encore GX2025 Buick Envision2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac XT42025 Cadillac XT52025 Cadillac XT62025 Chevrolet Blazer2025 Chevrolet Colorado2025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Suburban+ 769 more
  Associated Documents

  • DownloadMC-11009088-0001.pdf↗
• September 12, 2024•Document ID: 11007744

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT5099H

  Date Added:

  September 12, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature.

  Associated Products (834)

  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+ 814 more
  Associated Documents

  • DownloadMC-11007744-0001.pdf↗
• September 12, 2024•Document ID: 11007743

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT5099H

  Date Added:

  September 12, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature.

  Associated Products (834)

  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+ 814 more
  Associated Documents

  • DownloadMC-11007743-0001.pdf↗
• September 9, 2024•Document ID: 11008956

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  02-00-89-002X

  Date Added:

  October 17, 2024

  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 (936)

  2025 Buick Enclave2025 Buick Encore2025 Buick Encore GX2025 Buick Envision2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac XT42025 Cadillac XT52025 Cadillac XT62025 Chevrolet Blazer2025 Chevrolet Colorado2025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Suburban+ 916 more
  Associated Documents

  • DownloadMC-11008956-0001.pdf↗
• September 6, 2024•Document ID: 11007208

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT3271P

  Date Added:

  September 6, 2024

  Manufacturer:

  CHEVROLET

  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 (1056)

  2025 Buick Enclave2025 Buick Encore2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac XT52025 Cadillac XT62025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Trailblazer2025 Chevrolet Traverse2025 Chevrolet Trax2025 GMC Acadia2025 GMC Hummer EV Pickup2025 GMC Sierra2025 GMC Terrain2024 BrightDrop Zevo2024 Buick Enclave2024 Buick Encore+ 1036 more
  Associated Documents

  • DownloadMC-11007208-0001.pdf↗
• September 6, 2024•Document ID: 11007196

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC5650L

  Date Added:

  September 6, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble Codes B3055, B3060, and/or B3935. Technician should not replace any parts for this concern. If unable to duplicate the concern ask if the customer uses any Radio Frequency Identification Devices when the concern is present. Dealer should also direct their customers to the appropriate section in the Owner manuals that references that the device complies.

  Associated Products (565)

  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+ 545 more
  Associated Documents

  • DownloadMC-11007196-0001.pdf↗
• August 26, 2024•Document ID: 11006621

  Service Campaign
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  General Communication

  Date Added:

  August 26, 2024

  Manufacturer:

  CHEVROLET

  Summary

  Vehicle Wide Programming (VWP) is a new process to update software on GM Vehicles. It provides the ability via a single selection within Techline Connect to first identify which modules need updating and then proceed to updating affected modules (with some exceptions). The updating of modules is completed in parallel instead of the technician needing to update one module at a time. This allows a more streamlined approach for dealers and customers.

  Associated Products (1209)

  2025 Buick Enclave2025 Buick Encore2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac XT52025 Cadillac XT62025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Trailblazer2025 Chevrolet Traverse2025 Chevrolet Trax2025 GMC Acadia2025 GMC Hummer EV Pickup2025 GMC Terrain2024 BrightDrop Zevo2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX+ 1189 more
  Associated Documents

  • DownloadMC-11006621-0001.pdf↗
• August 22, 2024•Document ID: 11007936

  Service Bulletin/Repair Instructions
  SUSPENSION

  Mfr Comm. #:

  05-03-08-002J

  Date Added:

  September 20, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information to dealership personnel on diagnosis and replacement of shock absorber and strut due to fluid leak.

  Associated Products (825)

  2025 Buick Enclave2025 Buick Encore2025 Buick Encore GX2025 Buick Envision2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac XT42025 Cadillac XT52025 Cadillac XT62025 Chevrolet Blazer2025 Chevrolet Colorado2025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Suburban+ 805 more
  Associated Documents

  • DownloadMC-11007936-0001.pdf↗
• August 22, 2024•Document ID: 11007935

  Service Bulletin/Repair Instructions
  SUSPENSION

  Mfr Comm. #:

  05-03-08-002J

  Date Added:

  September 20, 2024

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides information to dealership personnel on diagnosis and replacement of shock absorber and strut due to fluid leak.

  Associated Products (825)

  2025 Buick Enclave2025 Buick Encore2025 Buick Encore GX2025 Buick Envision2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac XT42025 Cadillac XT52025 Cadillac XT62025 Chevrolet Blazer2025 Chevrolet Colorado2025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Suburban+ 805 more
  Associated Documents

  • DownloadMC-11007935-0001.pdf↗
• August 9, 2024•Document ID: 11006682

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  01-00-89-010S

  Date Added:

  August 30, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information on a guide to help reduce repeat visits for the same customer concern.

  Associated Products (808)

  2025 Buick Enclave2025 Buick Encore2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac XT52025 Cadillac XT62025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Trailblazer2025 Chevrolet Traverse2025 Chevrolet Trax2025 GMC Acadia2025 GMC Hummer EV Pickup2025 GMC Terrain2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision+ 788 more
  Associated Documents

  • DownloadMC-11006682-0001.pdf↗