Chevrolet Trailblazer Service Bulletins (2024)

412 manufacturer communications on file.

• April 18, 2025•Document ID: 11017304

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6589A

  Date Added:

  April 29, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates to the techicians a diagnostic tip if a customer has a complaint of a whistle/wind noise at highway speeds.

  Associated Products (5)

  2025 Chevrolet Trailblazer2024 Chevrolet Trailblazer2023 Chevrolet Trailblazer2022 Chevrolet Trailblazer2021 Chevrolet Trailblazer
  Associated Documents

  • DownloadMC-11017304-0001.pdf↗
• April 17, 2025•Document ID: 11019516

  Service Bulletin/Repair Instructions
  POWER TRAIN; STEERING; SUSPENSION

  Mfr Comm. #:

  PI0281L

  Date Added:

  June 12, 2025

  Manufacturer:

  CADILLAC

  Summary

  This preliminary informational (PI) bulletin provides information to dealership personnel that may be helpful when addressing underbody component corrosion with customers.

  Associated Products (162)

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  Associated Documents

  • DownloadMC-11019516-0001.pdf↗
• April 16, 2025•Document ID: 11017257

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6552E

  Date Added:

  April 28, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates how to recover the Image Processing Module.

  Associated Products (99)

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  Associated Documents

  • DownloadMC-11017257-0001.pdf↗
• April 12, 2025•Document ID: 11016992

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6593A

  Date Added:

  April 15, 2025

  Manufacturer:

  BUICK

  Summary

  This Preliminary information communicates to the technician what to do when they encounter a service charging system message with a DTC P0621.

  Associated Products (4)

  2025 Buick Encore GX2025 Chevrolet Trailblazer2024 Buick Encore GX2024 Chevrolet Trailblazer
  Associated Documents

  • DownloadMC-11016992-0001.pdf↗
• April 12, 2025•Document ID: 11016990

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT5551R

  Date Added:

  April 15, 2025

  Manufacturer:

  CADILLAC

  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 (113)

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  Associated Documents

  • DownloadMC-11016990-0001.pdf↗
• April 8, 2025•Document ID: 11017839

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  07-00-89-037W

  Date Added:

  May 5, 2025

  Manufacturer:

  GMC

  Summary

  This warranty administration bulletin provides policy information for GM courtesy transportation and roadside assistance programs.

  Associated Products (205)

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  Associated Documents

  • DownloadMC-11017839-0001.pdf↗
• April 3, 2025•Document ID: 11017595

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  25-NA-087

  Date Added:

  May 2, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information on the proper Reflective High Temperature Heat and/or Insulating Tape to use for certain repairs, such as Wiring Harness Repairs.

  Associated Products (193)

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  Associated Documents

  • DownloadMC-11017595-0001.pdf↗
• April 2, 2025•Document ID: 11017430

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  20-NA-084

  Date Added:

  May 1, 2025

  Manufacturer:

  BUICK

  Summary

  This service bulletin provides information on normal engine characteristics/noise produced by the LIH or LBP engine.

  Associated Products (14)

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  Associated Documents

  • DownloadMC-11017430-0001.pdf↗
• April 2, 2025•Document ID: 11016668

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  PIP6036A

  Date Added:

  April 7, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates diagnostic aids for a surge or fishbite concern

  Associated Products (13)

  2025 Buick Encore GX2025 Chevrolet Equinox2025 Chevrolet Malibu2025 Chevrolet Trailblazer2024 Buick Encore GX2024 Chevrolet Malibu2024 Chevrolet Trailblazer2023 Buick Encore GX2023 Chevrolet Malibu2023 Chevrolet Trailblazer2022 Buick Encore GX2022 Chevrolet Malibu2022 Chevrolet Trailblazer
  Associated Documents

  • DownloadMC-11016668-0001.pdf↗
• March 31, 2025•Document ID: 11017244

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  13-08-116-001K

  Date Added:

  April 25, 2025

  Manufacturer:

  CHEVROLET

  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 (205)

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  Associated Documents

  • DownloadMC-11017244-0001.pdf↗
• March 28, 2025•Document ID: 11017256

  Service Bulletin/Repair Instructions
  ENGINE; ELECTRICAL SYSTEM

  Mfr Comm. #:

  24-NA-021

  Date Added:

  April 28, 2025

  Manufacturer:

  BUICK

  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 (10)

  2025 Buick Encore GX2025 Buick Envista2025 Chevrolet Trailblazer2025 Chevrolet Trax2024 Buick Encore GX2024 Buick Envista2024 Chevrolet Trailblazer2024 Chevrolet Trax2023 Buick Encore GX2023 Chevrolet Trailblazer
  Associated Documents

  • DownloadMC-11017256-0001.pdf↗
• March 28, 2025•Document ID: 11017247

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  22-NA-242

  Date Added:

  April 26, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This warranty administration bulletin provides information for dealers/technicians on System Reset and Connector Reconnect Labor Code Numbers.

  Associated Products (129)

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  Associated Documents

  • DownloadMC-11017247-0001.pdf↗
• March 25, 2025•Document ID: 11017263

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  25-NA-052

  Date Added:

  April 28, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This bulletin advises the technician to flush the cooling system multiple times if oil has been found in the cooling system and replace the parts that may be contaminated due to oil in system.

  Associated Products (159)

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  Associated Documents

  • DownloadMC-11017263-0001.pdf↗
• March 21, 2025•Document ID: 11017213

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER; ELECTRICAL SYSTEM

  Mfr Comm. #:

  25-NA-071

  Date Added:

  April 24, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides repair procedures for radio software update version 169.4 to correct customer concerns of radio software issues.

  Associated Products (6)

  2025 Buick Encore GX2025 Buick Envista2025 Chevrolet Trailblazer2025 Chevrolet Trax2024 Buick Encore GX2024 Chevrolet Trailblazer
  Associated Documents

  • DownloadMC-11017213-0001.pdf↗
• March 21, 2025•Document ID: 11017207

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; UNKNOWN OR OTHER

  Mfr Comm. #:

  24-NA-098

  Date Added:

  April 24, 2025

  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 (161)

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  Associated Documents

  • DownloadMC-11017207-0001.pdf↗
• March 21, 2025•Document ID: 11017173

  Service Bulletin/Repair Instructions
  SERVICE BRAKES; FUEL/PROPULSION SYSTEM; STEERING

  Mfr Comm. #:

  25-NA-065

  Date Added:

  April 24, 2025

  Manufacturer:

  BUICK

  Summary

  This informational bulletin instructs the tech when fuel/fluid is needed to be tested and where it can be sent for analysis.

  Associated Products (205)

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  Associated Documents

  • DownloadMC-11017173-0001.pdf↗
• March 20, 2025•Document ID: 11017050

  Service Bulletin/Repair Instructions
  VISIBILITY/WIPER

  Mfr Comm. #:

  24-NA-164

  Date Added:

  April 15, 2025

  Manufacturer:

  CADILLAC

  Summary

  This bulletin provides information on Wiper Blade Maintenance Tips.

  Associated Products (100)

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  Associated Documents

  • DownloadMC-11017050-0001.pdf↗
• March 14, 2025•Document ID: 11017016

  Service Bulletin/Repair Instructions
  WHEELS

  Mfr Comm. #:

  08-03-10-006I

  Date Added:

  April 15, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides a procedure on how to clean and resurface aluminum wheel bead seats for vehicles that have the condition of Tire Slowly Goes Flat, Tire Air Loss, Low Tire Pressure Warning Light Illuminated, Aluminum Wheel Bead Seat Corrosion.

  Associated Products (162)

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  Associated Documents

  • DownloadMC-11017016-0001.pdf↗
• March 14, 2025•Document ID: 11016948

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  23-NA-164

  Date Added:

  April 11, 2025

  Manufacturer:

  BUICK

  Summary

  This service bulletin provides repair information to correct a customer concern of Vehicle Will Lock and Unlock (Active Functions Work) but Will Not Crank or Start (Loss of Passive Functions Do Not Work).

  Associated Products (57)

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  Associated Documents

  • DownloadMC-11016948-0001.pdf↗
• March 13, 2025•Document ID: 11017035

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER; ELECTRICAL SYSTEM

  Mfr Comm. #:

  23-NA-165

  Date Added:

  April 15, 2025

  Manufacturer:

  GMC

  Summary

  This service bulletin provides repair information to correct a customer concern of Vehicle Will Not Lock and Unlock (Loss of Active Functions) Crank or Start (Loss of Passive Functions) with DTC P0513 Set.

  Associated Products (52)

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  Associated Documents

  • DownloadMC-11017035-0001.pdf↗