2018 GMC Terrain drivetrain & axles problems
42 complaints about drivetrain & axles have been filed for the 2018 GMC Terrain, which is 12% of all its NHTSA complaints. It is the 3rd most reported problem area for this model year.
At a glance
- Complaints
- 42 12% of this year's complaints
- Typical mileage
- 10,000 miles 23 complaints with mileage
- Crashes and fires
- 2 and 0
- Injuries and deaths
- 2 and 0
Source: NHTSA owner complaints
When drivetrain & axles problems show up
View the numbers
| Mileage | Complaints |
|---|---|
| 0k to 20k miles | 14 |
| 20k to 40k miles | 1 |
| 40k to 60k miles | 2 |
| 60k to 80k miles | 1 |
| 80k to 100k miles | 1 |
| 100k to 120k miles | 0 |
| 120k to 140k miles | 2 |
| 140k to 160k miles | 0 |
| 160k to 180k miles | 1 |
| 180k to 200k miles | 0 |
| 200k+ miles | 1 |
What the data shows
Of the 23 drivetrain & axles complaints that report mileage, the median is about 10,000 miles, and 74% were reported before 60,000 miles.
These complaints mention 2 crashes, 2 injuries.
What owners wrote
My husband and son were involved in an almost fatal accident on 07/08/23 in our 2018 Terrain. My husband described that the vehicle spontaneously veered to the right uncontrollably, he was unable to steer to correct the vehicle, unable to brake, they went airborne, hit several poles and a transformer, rolled and flipped several times. All the airbags deployed.After the accident, I found a recall notice from back in 2017, I believe, regarding the drive train. My husband was extricated from the vehicle.
The contact owns a 2018 GMC Terrain. The contact stated that while driving at an undisclosed speed, the unintendedly decelerated and failed to properly accelerate. The vehicle was taken to the local dealer, who diagnosed the vehicle with transmission failure. The contact was informed that the transmission needed to be replaced. The transmission was replaced with a used transmission, but the failure reoccurred.
Other problems reported for the 2018 GMC Terrain
- Brakes 84 complaints
- Engine 56 complaints
- Electrical system 35 complaints
- Fuel system 16 complaints