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2021 GMC Terrain
Solid pick. The public record on this car is clean for its age — inspect it, then negotiate with confidence.
33 owner complaints · 2 recalls · data verified July 10, 2026 · source: NHTSA
Why buy?
Very few owner complaints for its age and sales volume.
The math, shown
Full methodology →Complaints filed per year
Fading = early teething worked out. Climbing = problems aging in.
The road ahead
What breaks on a 2021 GMC Terrain, plotted where owners report it happening.
Also reported (mileage varies): Engine (8) · Brakes (7) · Electrical system (7)
Mileage medians come from owners who mentioned an odometer reading in their NHTSA complaint — a rough guide, not a schedule.
Transmission & drivetrain
24%8 complaints · typically near 6k mi · 4 in the last 2 years
“Automatic transmission solenoid control valve body got stuck open and ruined the whole transmission. This has been a reoccurring problem with these vehicles. Image is …”
Engine
24%8 complaints · 7 in the last 2 years
“The engine light came on while driving, saying “engine power reduced”. It barely accelerates, RPMs go over 5, it chugs when driving. Taken to an independent service ce…”
Brakes
21%7 complaints · 4 in the last 2 years
“Driving on the Garden state parkway on Sunday night June 28, 2026 I proceed to cross over the ratitan bridge. There was traffic as I was going down the bridge at 70 mi…”
Electrical system
21%7 complaints · 2 in the last 2 years
“The car has revved high rpm's since purchase, with multiple attempts to get it resolved . Since then, the steering wheel has jerked out of my hand's multiple times, un…”
Recalls (2)
Safety recall repairs are free at the brand’s franchised dealers. Before buying, run the VIN at nhtsa.gov/recalls and make the seller show the work was done.
Child Seat · 23V339000
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."
Risk: The inability to install a child seat with the LATCH anchorage bars could result in an unsecured child seat, increasing the risk of injury in a crash.
Fix: Owners are advised to install child seats using the vehicle's rear seat belts until the remedy is complete. Dealers will inspect the latch anchorage bars, and remove and replace the finish, as necessary, free of charge. Owner notification letters were mailed June 2, 2023. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-800-462-8782. GM's number for this recall is N232403240.
Tires · 21V612000
General Motors, LLC (GM) is recalling certain 2021-2022 Chevrolet Equinox and GMC Terrain vehicles equipped with certain Hankook tires. The tires may have been manufactured with an insufficient amount of curative agent, which could cause tread separation.
Risk: Tread separation can result in a loss of vehicle control, increasing the risk of a crash.
Fix: Dealers will inspect the tire DOT numbers, and replace any affected tires, free of charge. Owner notification letters were mailed on August 31, 2021. Owners may contact GMC customer service at 1-800-462-8782; and Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N212343560.
Before you hand over money
Check the VIN for open recalls
NHTSA’s free lookup shows whether this exact car had its recall remedies completed.
Free NHTSA VIN check ↗Get a pre-purchase inspection
A $150–$250 independent inspection of this exact 2021 GMC TERRAIN beats every score on the internet, including ours.
What to ask forNot set on the 2021? See how every Terrain model year scores →
Cross-shopping? Compare the 2021 GMC Terrain against another car →
What owners say
Real owners of this exact model-year, shown separately from the NHTSA score — if they disagree, that’s worth knowing.