2019 GMC Terrain problems and complaints
Owners have filed 183 complaints with NHTSA about the 2019 GMC Terrain. The most-reported areas: Service Brakes (70), Engine (68), Power Train (50).
Key takeaways
- 183 owner complaints on file with NHTSA.
- 7 involve a crash, 3 a fire, 12 reported injuries.
- Complaints are unverified owner reports; recalls are confirmed defects.
| Component | Complaints | Share |
|---|---|---|
| Service Brakes | 70 | 38% |
| Engine | 68 | 37% |
| Power Train | 50 | 27% |
| Electrical System | 38 | 21% |
| Unknown Or Other | 21 | 11% |
| Vehicle Speed Control | 9 | 5% |
| Hydraulic | 7 | 4% |
| Back Over Prevention | 7 | 4% |
| Forward Collision Avoidance | 6 | 3% |
| Electronic Stability Control (esc) | 6 | 3% |
| Exterior Lighting | 5 | 3% |
| Fuel/Propulsion System | 4 | 2% |
One complaint can name several components, so shares add up to more than 100%.
| Version | Overall | Front | Side | Rollover |
|---|---|---|---|---|
| 2019 GMC Terrain SUV FWD | 5/5 | 5/5 | 5/5 | 4/5 |
| 2019 GMC Terrain SUV AWD | 5/5 | 5/5 | 5/5 | 4/5 |
Latest complaints, as filed
Owner-written and unverified by NHTSA.
Service Brakes,engine - filed 2026-09-17
On 9/15/2026, my wife drove her car, a 2019 GMC Terrain, to a doctor's appointment. She reported no known issues with the way the car operated during her drive nor had she or I experienced issues prior to this event. After she finished her appointment, she attempted to start her car and was unable to get the car to st...
Service Brakes,engine - filed 2026-09-04
While driving my 2019 GMC Terrain with three children as passengers, the vehicle developed a braking/engine problem. The brake pedal became very hard, and the vehicle subsequently became undrivable and would not start. I received no advance warning through the GMC app indicating that the vacuum pump was failing. The v...
Electrical System,service Brakes,engine - filed 2026-08-21
On Saturday, August 15th we were driving on the freeway when with no warning the check engine light came on and the vehicle began to run poorly, and then the vehicle lost electrical power and it became difficult to steer and the brake pedal became stiff, making it difficult to stop and pull over. The vehicle would not ...
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More for the 2019 GMC Terrain
Complaints are reports filed by owners with the National Highway Traffic Safety Administration. NHTSA publishes them without verifying them, and counts rise with how many cars were sold, so compare years of the same model rather than different models. Crash ratings are NHTSA's own 5-Star Safety Ratings results.