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Service bulletins for the 2025 GMC Terrain

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.

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

By type

By component

By trouble code

By topic

Bulletins, newest first
PIT6393F2025-11-02. Service bulletin. UNKNOWN OR OTHER. This Preliminary Information is to inform customers to follow diagnostics if resetting, disconnecting the module did not correct it.
PIP6071B2025-11-02. Service bulletin. UNKNOWN OR OTHER. This Preliminary Information communicates a intermittent misfire, surge, hesitation, chuggle with a potential MIL concerning a potential skewed position 1 oxygen sensor. 2026 model year being added with break point.
23-NA-1532025-10-25. Service bulletin. ENGINE. The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the customer that it is normal for the delay.
PIT6425B2025-10-24. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC's
PIC6551A2025-10-24. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates to dealer to perform a MEC reset for wireless projection issues
PIT6425A2025-10-24. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC's
PIP6059B2025-10-24. Service bulletin. UNKNOWN OR OTHER. This Preliminary Information communicates a potential MIL / SES due to P04FB that Engineering is currently working on a design improvement.
PIT64402025-10-24. Service bulletin. UNKNOWN OR OTHER. The Driver Information Center may display a message of Transport Mode On after the ignition is cycled.
PIT6393E2025-10-24. Service bulletin. UNKNOWN OR OTHER. This Preliminary Information is to inform customers to follow diagnostics if resetting, disconnecting the module did not correct it.
PIT6393D2025-10-06. Service bulletin. UNKNOWN OR OTHER. This Preliminary Information is to inform customers to follow diagnostics if resetting, disconnecting the module did not correct it.
PIT6411B2025-10-06. Service bulletin. UNKNOWN OR OTHER. This information provides software update information for the K73 Telematics module to correct the symptoms described.
PIP5927C2025-10-06. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates the possibility of reduced power with dtc P0237 and/or p0299 due to damaged Charge Air Inlet Pipe connection at Turbocharger.
652.202025-10-01. Over-the-air update. UNKNOWN OR OTHER. •Fixes to help prevent battery drain. •Fixes to responsiveness issues with Wi-Fi, Navigation, Super Cruise, and OnStar. •Improvements to software updates. •Improvements to OnStar emergency calls. •Fixes to address cellular connectivity issues. 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.
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.
PIE08372025-09-23. Service bulletin. VISIBILITY/WIPER; STRUCTURE:BODY. This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the liftgate glass breaking unexpectedly.
135982025-09-10. Other. UNKNOWN OR OTHER. New Vehicle Monitoring Programs Section in IVH
PIE0814B2025-09-10. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. This engineering information (EI) closure ends the need for requesting further information from technicians in regard to the Service AWD Lamp illuminated on Driver Information Center (DIC) and to refer to SI for further diagnosis.
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.
PIT6411A2025-09-05. Service bulletin. UNKNOWN OR OTHER. This information provides software update information for the K73 Telematics module to correct the symptoms described.
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.
PIP4902T2025-08-22. Service bulletin. UNKNOWN OR OTHER. This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
PIT6394B2025-08-22. Service bulletin. UNKNOWN OR OTHER. A vehicle may have a service driver assist message and the technician cannot get the Long Range Radar learn procedure to complete. Tech is directed to drive a city route to complete the procedure.
PIT6059C2025-08-22. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates an issue with super cruise unavailable due to the driver's monitoring camera and dealers to replace the camera.
PIP60792025-08-22. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates known concern with misfire detection and ECM resets.
PIP6031C2025-08-22. Service bulletin. UNKNOWN OR OTHER. This PI addresses leaks from the case half and provides repair direction to dealer technicians

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