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2020 GMC Terrain: True Cost, Problems & Verdict

189 NHTSA owner complaints · 2 recalls · data-computed verdict. No opinions — public data only.

Reviewed by the MotorJury data desk · 2 sources · Last updated 2026-08-20
GMC Terrain
Photo: Wikimedia Commons · open the model page
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Owner complaints: 189 filed with NHTSA

Complaints per year on the road: 31.5

Service Brakes67Engine55Unknown Or Other34Electrical System27Power Train26Fuel/Propulsion System23

What owners say

Verbatim reports filed with the United States safety regulator (NHTSA) by owners of this exact model year. Public record.

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…
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.
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 …

Recalls: 2 campaigns

20202023
CampaignComponentSummary
23V339000Child 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 LAT…
20V668000Power Train:Automatic TransmissionGeneral Motors LLC (GM) is recalling certain 2018-2019 Chevrolet Cruze and Buick LaCrosse, 2018-2020 Chevrolet Equinox, Chevrolet Traverse a…

True cost of ownership

Fuel (your region) $0
Maintenance band (your region) $1,208$2,449
Estimated running cost this year (age 6) $2,449

Re-priced automatically from your country's retail fuel, electricity and parts indices — change country in the bar at the top. Estimates; see methodology.

02468101214$4,114vehicle age (years)
fuel/energy + maintenance band (annual, USD, estimate)

Run your own numbers in the true-cost calculator →

FAQ

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

The most-reported issue in NHTSA complaint data is Service Brakes (67 complaints in our indexed sample).

Is the 2020 GMC Terrain a good used car to buy?

Our data verdict is CAUTION with a reliability score of 47/100, computed from 189 NHTSA complaints and 2 recall campaigns. See the verdict card for the top reasons.

Does the 2020 GMC Terrain have recalls?

Yes — NHTSA lists 2 recall campaign(s) for the 2020 GMC Terrain, 0 of them touching fire, crash or stall risk, the most recent recorded 11/05/2023. Check this car's VIN at nhtsa.gov/recalls before you buy.

What will a 2020 GMC Terrain really cost YOU per year?

Fuel, maintenance band and depreciation — computed from public data in 10 seconds.

Open the true-cost calculator

Data sources

Complaints & recalls: NHTSA · Fuel economy: EPA fueleconomy.gov · Scoring: our published methodology.
Maintenance bands are industry-average estimates (AAA Your Driving Costs, CarMD index) — labeled estimates, not measurements. Last updated: 2026-08-20.

47RELIABILITY / 100
CAUTION
  • 189 NHTSA complaints on record (31.5/yr of exposure)
  • 2 recall campaigns, 0 touching safety-critical systems

How this score is computed →

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