Problems · NHTSA complaints
2027 GMC Terrain problems
Owners filed 1 complaint about the 2027 GMC Terrain with NHTSA between Oct 2026 and Oct 2026. The most-cited component is air bags (1).
Complaints
1
Filed with NHTSA
Crashes
1
Reported by owners
Fires
0
Reported by owners
Injuries
1
People reported injured
Deaths
0
Reported to NHTSA
Complaints by component
One complaint can cite several components
- Air bags1
- Forward collision avoidance1
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
Data from NHTSA Complaints API · synced Nov 1, 2026NHTSA vehicle page
Top problems in owners’ words
Verbatim from NHTSA complaints, newest first
Air bags
1 report1 crash
“My husband and I were traveling on the highway doing 75mph. A deer ran out in front of us causing a crash. The front end of the car was extremely damaged and onstar reflects the drivers side air bag deployed (which it sounded like when we hit as we heard a big bang) but no air bag deployed. The car also immediately locked up. The driver stated he could not brake or accelerate and lost all steering. The brake locked up and we went from 75-0 immediately. Thankfully there was not ice on the road as we would have been just full force ahead and thankfully there was no one behind us as they would have totally been in our back seat. Both would have been even worse of an accident then they already were! There was smoke from the brakes (obviously going from 75-0 caused some brake wear and tear) EMT looked at the seat belts as the passengers retracted after she slid forward causing injury to the abdomen. The driver was able to brace a little so not as bad. Insurance is inspecting it today for damage so totality of the damage is unknown at this time. Prior to the Collison the lights warning you of a collision went off but there was no time to react.”
Forward collision avoidance
1 report1 crash
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 1, 2026
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.