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What 45 owners told NHTSA about the 2024 GMC Terrain

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (45)Crash / fire / injury (2)Transmission & drivetrain (19)Engine (11)Fuel system (10)Electrical system (6)Brakes (3)Speed control (3)Airbags (2)Driver assistance (2)Body & structure (1)Firerelated (1)

2 of 45 complaints match · crash/fire/injury only · clear filters

Apr 15, 2026AirbagsCrash1 injury

The contact owned a 2024 GMC Terrain. The contact stated that while her daughter was driving 5 MPH on an intersection, another vehicle driving 40 MPH crashed into the driver's side of the vehicle, by the driver's side door. The driver's side curtain air bag deployed. The contact stated that the three holes on the air bag propelled burning air, which melted and burned through the three layers of clothing of the driver. The driver sustained second-degree burns and blisters on the hip. The contact picked up and transported the driver to Urgent Care, where medical assistance was provided. A police report was filed. The vehicle was deemed a total loss by the police officer. The vehicle was towed to a tow lot, pending assessment from the insurance company. The dealer and the manufacturer were not yet contacted. The failure mileage was approximately 55,000.

NHTSA ODI 11731421

Apr 13, 2026FirerelatedFire1 injury

See attached document for complaint.

NHTSA ODI 11730821

Working with the data? Download all 45 complaints as CSV · fetched from NHTSA July 10, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2024 GMC Terrain verdict →