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Service bulletins for the 2025 Chevrolet Blazer

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.

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

By type

By component

By trouble code

By topic

Bulletins, newest first
PIT6411B2025-10-06. Service bulletin. UNKNOWN OR OTHER. This information provides software update information for the K73 Telematics module to correct the symptoms described.
23-NA-1512025-10-02. Service bulletin. ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. This service bulletin and criteria within are to determine the internal state of the High Voltage Battery and core return shipping method.
625.102025-10-01. Over-the-air update. UNKNOWN OR OTHER. This software update includes the following, if your vehicle is equipped: •Improvements to vehicle diagnostics. •Fixes to preserve battery life and improve charging. •Fixes to address issues with shifting. •Fixes for vehicle airflow in icy conditions. •Improvements to HVAC compressor performance. During the update process, your radio may stay on up to 5 minutes after you exit the vehicle. This is expected behavior when an update package is onboard the vehicle. Do not service your vehicle during installation.
PIE0753I2025-09-30. Service bulletin. ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. This engineering information (EI) will assist GM to recover a small number of electric vehicle battery packs from customer-owned vehicles in the field for further engineering study and analysis.
22-NA-0832025-09-27. Service bulletin. FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM. This service bulletin provides Requirements for Replacement of the Dual Mode Cord Set Under Warranty.
18-NA-1802025-09-26. Service bulletin. ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.
PIT6356C2025-09-26. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates A vehicle may be encountered with super cruise inop due to not seeing drivers face clearly. The tech is directed to inspect the Infrared LED's on the steering wheel and replace the wheel if necessary.
PIC6587E2025-09-25. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates That the active safety systems maybe inoperable and to perform a module reset to correct.
PIP60872025-09-25. Service bulletin. UNKNOWN OR OTHER. This PI gives the dealer direction on a shudder shake low speed for a possible fluid condition.
PIT64262025-09-25. Service bulletin. UNKNOWN OR OTHER. If a vehicle has an issue with super cruise inoperative tech is directed to follow a diagnostic path before replacing the Image processing module.
PIT6393C2025-09-25. Service bulletin. UNKNOWN OR OTHER. This Preliminary Information is to inform customers to follow diagnostics if resetting, disconnecting the module did not correct it.
PIE08362025-09-23. Service bulletin. ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the Malfunction Indicator Lamp (MIL) illuminated on the Driver Information Center (DIC) and/or a no-start condition following a recent vehicle update.
PIT6424B2025-09-17. Service bulletin. UNKNOWN OR OTHER. A vehicle may come in with B3A6B set in history. Tech is directed to clear code and advise the customer an OTA will be released for the code.
PIP60852025-09-16. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates a possible issue with an engine timing chain, gear or crankshaft key.
135982025-09-10. Other. UNKNOWN OR OTHER. New Vehicle Monitoring Programs Section in IVH
25-NA-1182025-09-10. Service bulletin. FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING. This service bulletin provides information for the technicians to use a Customer Concern Verification sheet to facilitate the questions needing to be answered by the customer regarding Automatic Emergency Braking (AEB) issues.
PIT6424A2025-09-09. Service bulletin. UNKNOWN OR OTHER. A vehicle may come in with B3A6B set in history. Tech is directed to clear code and advise the customer an OTA will be released for the code.
PIC6587D2025-09-09. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates That the active safety systems maybe inoperable and to perform a module reset to correct.
25-NA-1162025-09-06. Service bulletin. STEERING; ELECTRICAL SYSTEM. This service bulletin provides information and the condition correction on the "Service Steering Column Lock" message and/or those who are unable to move the steering wheel after starting the vehicle.
PIT6411A2025-09-05. Service bulletin. UNKNOWN OR OTHER. This information provides software update information for the K73 Telematics module to correct the symptoms described.
N2525199102025-08-27. Service campaign. SERVICE BRAKES. Certain vehicles may have a condition in which the Front Right Brake Line Fitting is torqued under specification. Dealers are to tighten the Front Right Brake Line Fitting to the specified torque.
N2524942502025-08-26. Service campaign. UNKNOWN OR OTHER; WHEELS. Certain vehicles may be missing relevant information regarding the use of snow chains, snow socks, or other traction devices from the Owner’s Manual. Vehicle owners will be mailed an owner’s manual insert to include with other important printed material in the glovebox. For vehicles currently on dealer lots, dealers will include the insert prior to delivery.
PIT64242025-08-26. Service bulletin. UNKNOWN OR OTHER. A vehicle may come in with B3A6B set in history. Tech is directed to clear code and advise the customer an OTA will be released for the code.
PIT64232025-08-26. Service bulletin. UNKNOWN OR OTHER. Diagnostic Guidance for U3000-97 Long Range Radar Blocked
PIT6368B2025-08-22. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates an issue with the virtual garage door opener not programming to a garage opener. Engineering is working on a new module.

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