2020 GMC Terrain Problems

189 owner complaints filed with the United States safety regulator · top issue: Service Brakes · verdict CAUTION 47/100

Source NHTSA public complaint and recall record · methodology

What breaks, by owner reports

Service Brakes67
Engine55
Unknown Or Other34
Electrical System27
Power Train26
Fuel/Propulsion System23

In the owners’ words

“While driving home from work my 2020 GMC Terrain stalled and turned off. I was on a very busy 2 lane road, crossing a intersection in a tourist area in [XXX]. This could have be come fatal very easily. I was able to get the car started and Home but had to take it very slow. Next day we weren't able to get the car started nor turned on. Battery is new and still works, we also had a mechanic come to the house and run h”NHTSA complaint, 2020 GMC Terrain owner
“When the gas is mashed to accelerate, the car does not want to go. It has left me stranded and rolling in the middle of traffic. I am scared to drive it.”NHTSA complaint, 2020 GMC Terrain owner
“While driving north in interstate 79, the brakes became very hard to push making it difficult to stop the vehicle. We got off the interstate and proceeded back home. The brakes were as hard as a rock to push and it was difficult to stop the vehicle. When this happened, the check engine light came on and stayed on. It was very dangerous to drive due to the brakes not working properly and the stopping distance was ”NHTSA complaint, 2020 GMC Terrain owner

Recall campaigns

ReportedComponentSummary
29/10/2020Power Train:Automatic TransmissionGeneral 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, Ca
11/05/2023Child Seat:Vehicle Latch AnchorGeneral 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

Questions owners ask

Is the 2020 GMC Terrain reliable?

On the federal record it scores 47/100: 189 owner complaints (31.5 per year on the road) and 2 recall campaigns, 0 touching safety-critical systems.

What is the most common problem with the 2020 GMC Terrain?

The most-reported component in NHTSA complaints is Service Brakes, with 67 of 232 categorised reports.

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The 2020 GMC Terrain scored 47/100 on the federal record.

Full 2020 data pagecosts, verdict, every numberAll Terrain yearswhich year to avoid Most complained-about carsthe national ranking