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Service bulletins for the 2026 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.

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

By type

By component

By trouble code

Bulletins, newest first
PIP60802025-08-22. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates known concern with a lack of power on acceleration on new stock units that is being investigated.
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
N2525159302025-08-14. Service campaign. UNKNOWN OR OTHER. On certain vehicles equipped with the Black Edition package, the customer was inadvertently over-charged for the Accessory Black Nameplate Kit. Dealers will provide the customer with a reimbursement check in the amount of $175.00 USD, $295.00 CAD.
PIC5650M2025-08-12. Service bulletin. UNKNOWN OR OTHER. This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble Codes B3055, B3060, B3935, C0750, C0755, C0760, C0765, and/or C0775.
PIT64132025-07-30. Service bulletin. UNKNOWN OR OTHER. This preliminary information is for technicians that will have this message after USB updating the radio. The repair should not involve replacing a module as pressing the reset button will correct this issue.
PIT6393B2025-07-30. Service bulletin. UNKNOWN OR OTHER. This Preliminary Information is to inform customers to follow diagnostics if resetting, disconnecting the module did not correct it. It also informs them to follow the bulletins as necessary to USB update the modules.
PIT6274C2025-07-24. Service bulletin. UNKNOWN OR OTHER. This preliminary information PI states to not replace anything at the dealership for this concern and engineering is investigating.
PIT6274C2025-07-24. Service bulletin. UNKNOWN OR OTHER. This preliminary information PI states to not replace anything at the dealership for this concern and engineering is investigating.
PIT5074S2025-07-23. Service bulletin. UNKNOWN OR OTHER. This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.
PIP6031B2025-07-23. Service bulletin. UNKNOWN OR OTHER. This PI addresses leaks from the case half and provides repair direction to dealer technicians
PIP5601B2025-07-23. Service bulletin. UNKNOWN OR OTHER. This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.
PIT64112025-07-14. Service bulletin. UNKNOWN OR OTHER. This information provides software update information for the K73 Telematics module to correct the symptoms described.
PIT6393A2025-07-14. Service bulletin. UNKNOWN OR OTHER. This Preliminary Information is to inform customers to follow diagnostics if resetting, disconnecting the module did not correct it. It also informs them to follow the bulletins as necessary to USB update the modules.
15-NA-0102025-07-07. Service bulletin. ENGINE. This service bulletin provides information to dealership personnel for new vehicles with less than 1,000 miles that may not pass California smog inspection or smog inspection in other states.
PIT64042025-07-01. Service bulletin. UNKNOWN OR OTHER. This Preliminary Information communicates the DTC's setting in the SDGM are false, steps to resolve and not to replace the module.
PIP6071A2025-07-01. 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.
N25-2503222025-07-01. Over-the-air update. UNKNOWN OR OTHER. This software update includes the following, if your vehicle is equipped: • Improvements to Apple CarPlay 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. If you are not using your vehicle's built-in 4G LTE connection, then applicable data rates apply.
PIT5832V2025-06-30. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates a diagnostic tip on how to resolve a issue if the serial data authentication configuration did not complete correctly.
PIT64012025-06-30. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates a diagnostic tip on how to resolve a issue of the horn sounding when vehicle doors are being closed and the key in vehicle reminder set to off.
PIP60742025-06-30. Service bulletin. UNKNOWN OR OTHER. This PI has contact information to investigate potential low fluid concerns
PIP6032B2025-06-30. Service bulletin. UNKNOWN OR OTHER. PIP6032B provides diagnostic direction for dealers when encountering transmission leaks
PIP6019B2025-06-30. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates known concern with cooling fan and the current repair.
PIC6086J2025-06-30. Service bulletin. UNKNOWN OR OTHER. This PI communicates a procedure to clean oil leaking from the rain sensor.
PIT6180A2025-06-29. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates assistance in locating the Rear seat belt comfort guides in the parts catalog.

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