Chevrolet Trailblazer Service Bulletins (2025)

262 manufacturer communications on file.

• November 27, 2024•Document ID: 11011989

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  08-07-30-035I

  Date Added:

  December 19, 2024

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides information on the harmful effects of ethylene glycol in transmission fluid.

  Associated Products (156)

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  Associated Documents

  • DownloadMC-11011989-0001.pdf↗
• November 25, 2024•Document ID: 11011996

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; UNKNOWN OR OTHER

  Mfr Comm. #:

  22-NA-238

  Date Added:

  December 19, 2024

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides diagnostic/repair information to correct a customer concern of Cellphone not Charging or USB Receptacle Inoperative.

  Associated Products (168)

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  Associated Documents

  • DownloadMC-11011996-0001.pdf↗
• November 22, 2024•Document ID: 11011900

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  19-NA-219

  Date Added:

  December 17, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This diagnostic tip bulletin provides additional information on how to diagnose a possible valve, lifter or camshaft issue.

  Associated Products (155)

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  Associated Documents

  • DownloadMC-11011900-0001.pdf↗
• November 21, 2024•Document ID: 11011339

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  PIP6025

  Date Added:

  December 4, 2024

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates possible transmission fluid leak in the torque converter housing area from loose pump bolts.

  Associated Products (21)

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  Associated Documents

  • DownloadMC-11011339-0001.pdf↗
• November 18, 2024•Document ID: 11011904

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  21-NA-181

  Date Added:

  December 18, 2024

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides 9th gear operation information to respond to customers that may comment on transmission shift operation.

  Associated Products (42)

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  Associated Documents

  • DownloadMC-11011904-0001.pdf↗
• November 5, 2024•Document ID: 11011709

  Service Bulletin/Repair Instructions
  WHEELS; UNKNOWN OR OTHER; SERVICE BRAKES; ENGINE; STRUCTURE:BODY

  Mfr Comm. #:

  21-NA-043

  Date Added:

  December 10, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.

  Associated Products (168)

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  Associated Documents

  • DownloadMC-11011709-0001.pdf↗
• October 29, 2024•Document ID: 11011225

  Service Bulletin/Repair Instructions
  ENGINE; POWER TRAIN

  Mfr Comm. #:

  23-NA-021

  Date Added:

  December 4, 2024

  Manufacturer:

  BUICK

  Summary

  This service bulletin advises the tech that the rotational Clicking Noise Heard After Engine Shut Down may be normal characteristics of the vehicle.

  Associated Products (52)

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  Associated Documents

  • DownloadMC-11011225-0001.pdf↗
• October 28, 2024•Document ID: 11011205

  Service Bulletin/Repair Instructions
  ENGINE; STEERING; POWER TRAIN

  Mfr Comm. #:

  04-06-01-029K

  Date Added:

  December 4, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This informational bulletin explains Unscheduled Supplemental Services and the importance of GM Simplified Maintenance Schedules.

  Associated Products (155)

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  Associated Documents

  • DownloadMC-11011205-0001.pdf↗
• October 23, 2024•Document ID: 11011012

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  21-NA-169

  Date Added:

  December 3, 2024

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides diagnostic information/procedures to aid the service technician in diagnosing 9T45/50/60 automatic transmissions with low mileage and DTCs current or history related to the control solenoids and valves.

  Associated Products (34)

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  Associated Documents

  • DownloadMC-11011012-0001.pdf↗
• October 22, 2024•Document ID: 11011455

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIT6263

  Date Added:

  December 5, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates to the technician a diagnostic tip, to inspect the negative battery cable if they encounter an intermittent no crank/start or stall condition.

  Associated Products (8)

  2025 Buick Encore GX2025 Buick Envista2025 Chevrolet Trailblazer2025 Chevrolet Trax2024 Buick Encore GX2024 Buick Envista2024 Chevrolet Trailblazer2024 Chevrolet Trax
  Associated Documents

  • DownloadMC-11011455-0001.pdf↗
• October 11, 2024•Document ID: 11010576

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  24-NA-040

  Date Added:

  November 16, 2024

  Manufacturer:

  GMC

  Summary

  This service bulletin provides information on All hazmat parts being returned to the Warranty Parts Center (WPC) must be shipped using Central Transport. Hazardous materials should never be sent by air transportation to the WPC.

  Associated Products (168)

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  Associated Documents

  • DownloadMC-11010576-0001.pdf↗
• October 9, 2024•Document ID: 11010545

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  10-00-89-009F

  Date Added:

  November 14, 2024

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides information on key code security rules and information on GM keycode look-up applications (U.S).

  Associated Products (168)

  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 Malibu2025 Chevrolet Tahoe+ 148 more
  Associated Documents

  • DownloadMC-11010545-0001.pdf↗
• October 5, 2024•Document ID: 11010493

  Service Bulletin/Repair Instructions
  STRUCTURE:BODY; UNKNOWN OR OTHER

  Mfr Comm. #:

  22-NA-244

  Date Added:

  November 13, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This warranty administration service bulletin provides information about GM Accessories - Dealer-Installed, Repaired or Replaced During Warranty Coverage Period.

  Associated Products (156)

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  Associated Documents

  • DownloadMC-11010493-0001.pdf↗
• October 5, 2024•Document ID: 11010490

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  01-06-01-011Q

  Date Added:

  November 13, 2024

  Manufacturer:

  GMC

  Summary

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

  Associated Products (143)

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  Associated Documents

  • DownloadMC-11010490-0001.pdf↗
• October 3, 2024•Document ID: 11010492

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER; ELECTRICAL SYSTEM

  Mfr Comm. #:

  22-NA-053

  Date Added:

  November 13, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information for dealers/technicians on New Labor Operations for Limited Production Option (LPO) Calibrated Accessories.

  Associated Products (133)

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  Associated Documents

  • DownloadMC-11010492-0001.pdf↗
• October 3, 2024•Document ID: 11010488

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  99-00-89-019Z

  Date Added:

  November 13, 2024

  Manufacturer:

  CHEVROLET

  Summary

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

  Associated Products (168)

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  Associated Documents

  • DownloadMC-11010488-0001.pdf↗
• October 3, 2024•Document ID: 11010421

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  20-NA-132

  Date Added:

  November 9, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

  Associated Products (168)

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  Associated Documents

  • DownloadMC-11010421-0001.pdf↗
• October 2, 2024•Document ID: 11010495

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  23-NA-154

  Date Added:

  November 13, 2024

  Manufacturer:

  CHEVROLET

  Summary

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

  Associated Products (168)

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  Associated Documents

  • DownloadMC-11010495-0001.pdf↗
• October 2, 2024•Document ID: 11010491

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  07-00-89-037T

  Date Added:

  November 13, 2024

  Manufacturer:

  CHEVROLET

  Summary

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

  Associated Products (168)

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  Associated Documents

  • DownloadMC-11010491-0001.pdf↗
• October 1, 2024•Document ID: 11011406

  Service Bulletin/Repair Instructions
  FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

  Mfr Comm. #:

  PIT5551P

  Date Added:

  December 5, 2024

  Manufacturer:

  GMC

  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-11011406-0001.pdf↗