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Service bulletins for the 2025 Chevrolet Trailblazer

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

271 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Bulletins, newest first
23-NA-1652025-04-15. Service bulletin. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. 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.
15-06-03-001F2025-04-15. Service bulletin. ELECTRICAL SYSTEM. This service bulletin provides information to diagnose batteries that have set for a long period of time and/or cold weather climates and testing those batteries.
08-03-10-006I2025-04-15. Service bulletin. WHEELS. 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.
PIC6593A2025-04-15. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates to the technician what to do when they encounter a service charging system message with a DTC P0621.
PIT5551R2025-04-15. Service bulletin. UNKNOWN OR OTHER. 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".
25-NA-0012025-04-14. Service bulletin. POWER TRAIN. This service bulletin provides repair information to correct a customer concern of a transmission fluid leak.
23-NA-1642025-04-11. Service bulletin. ELECTRICAL SYSTEM. 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).
23-NA-1632025-04-10. Service bulletin. ELECTRICAL SYSTEM. This service bulletin provides repair information to correct a customer concern of No Crank, No Start, Quick Start/Stall, No FOB Detected, Key FOBs Inoperative, B3924 00, B3925 00, B3926 00, B3927 00, B3928 00 Set.
19-NA-2002025-04-10. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. This service bulletin provides a repair procedure to correct a customer concern of start/stop inoperative, MIL illuminated w/DTC P2797.
25-NA-0522025-04-10. Service bulletin. ENGINE. 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.
PIE0816A2025-04-09. Service bulletin. ENGINE. This engineering information (EI) closure ends the need for gathering further information from technicians in regard to Check Engine Lamp illuminated on DIC with DTC P219A set.
PIP6036A2025-04-07. Service bulletin. POWER TRAIN. This Preliminary information communicates diagnostic aids for a surge or fishbite concern
25-NA-0012025-03-14. Service bulletin. POWER TRAIN. This service bulletin provides repair information to correct a customer concern of a transmission fluid leak.
PIP5929C2025-03-12. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates to the dealers diagnostic tips related to MIL on with P219A.
17-NA-0732025-03-12. Service bulletin. UNKNOWN OR OTHER. This warranty administration bulletin provides information regarding the field action courtesy transportation policy.
05-03-07-009L2025-03-08. Service bulletin. SUSPENSION; WHEELS. This service bulletin provides information on Wheel Alignment Specifications, Requirements and Recommendations for GM Vehicles.
11-00-89-005Y2025-03-08. Service bulletin. UNKNOWN OR OTHER. This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S. Only).
05-08-51-001L2025-03-08. Service bulletin. STRUCTURE:BODY. This informational bulletin provides a procedure on how to remove the paint stain that may present itself under the shipping film.
24-NA-1642025-03-06. Service bulletin. VISIBILITY/WIPER. This bulletin provides information on Wiper Blade Maintenance Tips.
PIP5975A2025-03-02. Service bulletin. POWER TRAIN. This Preliminary information communicates information on what dealer technicians should due if they encounter a broken chain on a CVT transmission
PIP5958A2025-03-02. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates the process for recording transmission noises using the PicoScope For review
PIP6030A2025-03-02. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates the ability to disassemble inspect and replace park system components.
25-NA-0252025-02-28. Service bulletin. ENGINE; ELECTRICAL SYSTEM. This bulletin provides a procedure to check the wiring harness for a possible short that may cause the code to set and not just to replace the evaporative vacuum leak pump.
16-NA-1092025-02-28. Service bulletin. STEERING. This service bulletin provides a procedure inspecting for excess grease or Sealant on the Exterior of the steering gear due to seeing grease or sealant on certain locations on the gear.
PIE08162025-02-28. Service bulletin. ENGINE. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regard to the Check Engine Lamp illuminated on Driver Information Center (DIC), with DTC P219A set.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.