2018 GMC Terrain electrical system problems
Owners reported electrical system problems in 35 complaints for the 2018 GMC Terrain, 10% of the complaints on file.
At a glance
- Complaints
- 35 10% of this year's complaints
- Typical mileage
- 22,000 miles 17 complaints with mileage
- Crashes and fires
- 1 and 1
- Injuries and deaths
- 0 and 0
Source: NHTSA owner complaints
When electrical system problems show up
View the numbers
| Mileage | Complaints |
|---|---|
| 0k to 20k miles | 8 |
| 20k to 40k miles | 5 |
| 40k to 60k miles | 2 |
| 60k to 80k miles | 1 |
| 80k to 100k miles | 0 |
| 100k to 120k miles | 0 |
| 120k to 140k miles | 1 |
| 140k to 160k miles | 0 |
| 160k to 180k miles | 0 |
| 180k to 200k miles | 0 |
| 200k+ miles | 0 |
What the data shows
Of the 17 electrical system complaints that report mileage, the median is about 22,000 miles, and 88% were reported before 60,000 miles.
These complaints mention 1 crash, 1 fire.
What owners wrote
Tl* the contact owns a 2018 GMC terrain. The contact stated that the vehicle's electrical system failed. The vents located near the instrument panel emitted a strong burning odor when the heating system or air conditioning system was activated. In addition, the front end of the vehicle exhibited a strong vibration that caused the steering wheel to vibrate. Furthermore, when the rear hatch door was closed, the rear hatch door light remained illuminated.
Radio plays random radio stations and will not allow radio to be turned off when vehicle is turned off ( no power to the vehicle, doors are opened and the fob is over 500 ft away). Radio screen flashes to a blank screen. Does not read contact information for cellphone connected to vehicle. Will not allow phone calls to be made and will continue to play music through radio and car speakers while phone is engaged in a telephone call ( once call is able to be placed). Android auto feature stopped working.
Other problems reported for the 2018 GMC Terrain
- Brakes 84 complaints
- Engine 56 complaints
- Drivetrain & axles 42 complaints
- Fuel system 16 complaints