Worst 2020 GMC Terrain Problems
Top 3 most-reported issues with average mileage at failure.
Brakes
Engine Problems
Electrical Faults
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All Problems by Category
Every NHTSA complaint category for the 2020 GMC Terrain.
| Component | Complaints | Crashes | Fires | Avg Mileage | Volume |
|---|---|---|---|---|---|
| Brakes | 52 | 5 | — | 29,822 mi | |
| Engine Problems | 48 | — | — | 68,450 mi | |
| Electrical Faults | 24 | — | — | 49,933 mi | |
| Transmission / Drivetrain | 24 | — | — | 52,067 mi | |
| Fuel System | 19 | — | — | 5,000 mi | |
| Unintended Acceleration | 11 | — | — | 514 mi | |
| Hydraulic Brakes | 6 | — | — | 123,844 mi | |
| Forward Collision Avoidance: Automatic Emergency Braking | 5 | 2 | — | — | |
| Airbags | 3 | — | — | — | |
| Backup Camera | 3 | — | — | — | |
| Gasoline Fuel System | 3 | — | — | — | |
| Fuel Pump | 3 | — | — | — | |
| Steering Defects | 3 | — | — | — | |
| Body Structure | 3 | — | — | — | |
| Electronic Stability Control | 2 | — | — | — | |
| Engine & Cooling | 2 | — | — | — | |
| Forward Collision Avoidance: Adaptive Cruise Control | 2 | — | — | — | |
| Suspension Failures | 2 | — | — | — | |
| Wipers & Visibility | 2 | — | — | — | |
| Wheel Issues | 2 | 1 | — | — | |
| Back Over Prevention: Rearview System Braking | 1 | — | — | — | |
| Back Over Prevention: Warnings | 1 | — | — | — | |
| Carry Handle, Shell, Base | 1 | 1 | — | — | |
| Electrical System:Adas:Hill Descent Assist:Sensor | 1 | — | — | — | |
| Headlight/Taillight Failures | 1 | — | — | — | |
| Forward Collision Avoidance: Warnings | 1 | — | — | — | |
| Lane Departure: Assist | 1 | — | — | — | |
| Lane Departure: Blind Spot Detection | 1 | — | — | — | |
| Automatic Transmission | 1 | — | — | — |
Search Owner Complaints
Read what owners actually reported to NHTSA for the 2020 GMC Terrain. Type a keyword (e.g. “transmission”, “stalling”, “brakes”) to filter.
Recalls for 2020 GMC Terrain
2 NHTSA recall campaigns affecting ~862,292 vehicles.
General Motors, LLC (GM) is recalling certain 2020-2023 Chevrolet Equinox and GMC Terrain vehicles. The four rear-seat lower child seat LATCH anchorage bars may have excessive powder coating, which could prevent a child seat from being installed with the anchorage bars. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 225, "Child Restraint Anchorage Systems."
General Motors LLC (GM) is recalling certain 2018-2019 Chevrolet Cruze and Buick LaCrosse, 2018-2020 Chevrolet Equinox, Chevrolet Traverse and GMC Terrain, 2018 Chevrolet Malibu, 2019-2020 Buick Encore, Buick Enclave, Cadillac XT4, Chevrolet Blazer and GMC Acadia, and 2020 Cadillac XT6 vehicles. The start/stop accumulator endcap may have missing bolts.
Other GMC Terrain Years
2020 GMC Terrain — FAQ
Answers based on real NHTSA complaint and recall data for this specific model year.
Is the 2020 GMC Terrain reliable?
What are common problems with the 2020 GMC Terrain?
At what mileage do problems start on the 2020 GMC Terrain?
How safe is the 2020 GMC Terrain?
Does the 2020 GMC Terrain have any recalls?
Should I buy a 2020 GMC Terrain?
Source: NHTSA (National Highway Traffic Safety Administration) complaint and recall databases, aggregated by VinItel.
Wider context: See the full GMC Terrain reliability report with year-by-year comparison and generation analysis.
Check Your Specific 2020 GMC Terrain
Real owner complaints tell you about the model. The VIN tells you about your specific car — accidents, title issues, odometer fraud.
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