WenmarOpen by Wenmar Pro

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
25-NA-0012025-02-27. Service bulletin. POWER TRAIN. This service bulletin provides repair information to correct a customer concern of a transmission fluid leak.
07-00-89-037V2025-02-27. Service bulletin. UNKNOWN OR OTHER. This warranty administration bulletin provides policy information for GM courtesy transportation and roadside assistance programs.
PIT5551Q2025-02-25. 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".
23-NA-0862025-02-20. Service bulletin. EXTERIOR LIGHTING. This service bulletin provides information on dark spots in the headlamp pattern when the vehicle is pulled up to a wall or garage.
PIC65932025-02-18. 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.
25-NA-0012025-02-18. Service bulletin. POWER TRAIN. This service bulletin provides repair information to correct a customer concern of a transmission fluid leak.
24-NA-0482025-02-17. Service bulletin. FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING; SERVICE BRAKES. This service bulletin provides customer information for rear unwanted automatic braking, usually when reversing out of a garage or driveway.
23-NA-0642025-02-12. Service bulletin. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. This service bulletin provides information on the Transport Mode Feature, also known as Logistics mode, which is used to increase the 12V Battery stand time of the vehicle during transit and or long period of stand time at the dealerships.
22-NA-2442025-02-12. Service bulletin. UNKNOWN OR OTHER; STRUCTURE:BODY. This warranty administration service bulletin provides information about GM Accessories - Dealer-Installed, Repaired or Replaced During Warranty Coverage Period.
22-NA-0742025-02-12. Service bulletin. ENGINE. This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system.
21-NA-0432025-02-12. Service bulletin. VISIBILITY/WIPER; SERVICE BRAKES; ENGINE; ELECTRICAL SYSTEM; WHEELS. 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.
21-NA-1352025-02-12. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. This service bulletin provides information to inform dealership personnel about Law Enforcement and Government vehicles that request to disable or enable content.
10-08-110-001L2025-02-11. Service bulletin. STRUCTURE:BODY; VEHICLE SPEED CONTROL. This service bulletin provides information on proper use of floor mats.
01-08-42-001Q2025-02-11. Service bulletin. EXTERIOR LIGHTING. This service bulletin provides information on Exterior Lamp Condensation and Water Leak Information and Replacement Guidelines.
PIE0810B2025-02-08. Service bulletin. ENGINE. This engineering information (EI) closure ends the need for gathering further information from technicians in regard to the Malfunction Indicator Lamp (MIL) illuminated on the Driver Information Center (DIC).
25-NA-0012025-02-06. Service bulletin. POWER TRAIN. This service bulletin provides repair information to correct a customer concern of a transmission fluid leak.
PIP6037A2025-02-03. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates a potential for dtc p0496 to fail due to damaged purge solenoid valve O-rings.
PIT5995A2025-02-03. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates to the dealer the location of the rear child seat latch anchor locations.
PIP6037A2025-02-03. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates a potential for dtc p0496 to fail due to damaged purge solenoid valve O-rings.
PIP6031A2025-02-03. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates to technicians that to seperate the case halves clean the mating surfaces and replace the gasket.
PIE0810A2025-01-28. Service bulletin. FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM; ENGINE. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regard to he Malfunction Indicator Lamp (MIL) illuminated on the Driver Information Center (DIC).
09-06-04-026Z2025-01-23. Service bulletin. ENGINE; POWER TRAIN; ELECTRICAL SYSTEM. This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
PIP5929B2025-01-20. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates to the dealers diagnostic tips related to MIL on with P219A.
PIP60372025-01-20. Service bulletin. FUEL/PROPULSION SYSTEM. This Preliminary information communicates a potential for dtc p0496 to fail due to damaged purge solenoid valve O-rings.
PIC6539A2025-01-20. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates to the technician the normal operation of the heated steering wheel during a remote start event.

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