There are 1 owner-reported brakes complaints for the 2017 GMC Terrainin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
I AM THE OWNER OF A 2017 GMC TERRAIN. YESTERDAY, I WAS INVOLVED IN A CAR ACCIDENT IN THIS VEHICLE. SOME PERSON PULLED OUT IN FRONT OF ME AND I SLAMMED ON MY BRAKES TO AVOID A CAR ACCIDENT. HIS VEHICLE CONTINUED THROUGH AN INTERSECTION IN WHICH HE DID NOT HAVE THE RIGHT AWAY CAUSING ME TO HIT THE FRONT END OF HIS TRUCK. AS THE DRIVER STATES HE DID NOT SEE ME, I CAN CONFIRM I SLAMMED ON MY BRAKES, WHICH ACTED AS THEY COULDN'T STOP. IT FELT AS THE BRAKES WERE NONEXISTENT. THIS WAS AN EXTREMELY TERRIFYING MOMENT, AS I WAS GOING 45MPH (PER THE SPEED LIMIT). AS I HAD READ EARLIER, THE 2018 TERRAINS ALSO SEEM TO HAVE THE SAME PROBLEM.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 25, 2026