Table 1 shows two common engine and engine cooling related problems of the 2020 GMC Terrain. The number one most common problem is related to the engine and engine cooling (57 problems). The second most common problem is related to the engine noise (one problem).
| Problem Category | Number of Problems |
|---|---|
| Engine And Engine Cooling problems | |
| Engine Noise problems |
Vacuum pump failure causing sudden and unexpected hard brake pedal and loss of braking coming off the highway. Ended up catastrophic engine failure. This is the second incident with this vehicle of the exact same problem. Read details...
We drove to a farm with a family of 5m kids and an elderly, and parked my car for 2-3 hours in the farm's open area parking lot. Vehicle showed no warning lights, no problems, no issues during our drive to the farm and prior to this trip. Everything was fine when we go there and parked. Read details...