Home · 2015 GMC Terrain · Complaints
What 313 owners told NHTSA about the 2015 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.
2 of 313 complaints match · Engine · crash/fire/injury only · clear filters
Feb 4, 2021EngineFire
TL* THE CONTACT OWNS A 2015 GMC TERRAIN. THE CONTACT STATED WHILE DRIVING AT 70 MPH, THE VEHICLE STARTED TO DECELERATE WITH NO WARNING LIGHTS ILLUMINATED. THE CONTACT STATED THAT HE SAW BLACK SMOKE COMING FROM THE REAR OF THE VEHICLE AS HE WAS PULLING OVER TO THE SIDE OF THE ROADWAY. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC WHO DIAGNOSED THE FAILURE AS A BROKEN PART IN THE ENGINE AND THAT THE ENGINE NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. NEITHER THE LOCAL DEALER NOR THE MANUFACTURER WERE NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 112,000.
NHTSA ODI 11394636
Dec 17, 2019Body & structureSpeed controlEngineCrash
WHILE PULLING INTO A PARKING SPOT VERY SLOW THE VEHICLE ACCELERATED AND DAMAGED CAR IN FRONT THERE ARE TRACTION MARKS SHOWING THE SUDDEN ACCELERATION. THE CAR WOULD NOT STOP UNTIL THE IGNITION WAS TURNED OFF. BECAUSE THE CARS IN FRONT WERE HIT I PLACED THE CAR IN PARK AFTER THE IGNITION WAS TURNED OFF.
NHTSA ODI 11289738
Working with the data? Download all 313 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 2015 GMC Terrain verdict →