2021 Gmc Terrain problems and recalls

Owners have filed 36 complaints on the 2021 Gmc Terrain, and NHTSA has issued 2 recalls. The most cited component is the Engine (10 complaints).

36
Complaints
2
Recalls
4
Crash reports
0
Fire reports
4
Injuries
80.1
Severity index

Severity index 80.1 High. The index weights crashes, fires, injuries and fatalities per 100 complaints. How it is calculated.

Middle half of all tracked vehiclesThis vehicle: 80.1p25 46p75 80cleanestworst
Severity index against the quartile range for all tracked vehicles.

Components cited in complaints

EngineEngine: 10 complaints (27.8%)10 28%Service BrakesService Brakes: 8 complaints (22.2%)8 22%Power TrainPower Train: 8 complaints (22.2%)8 22%Electrical SystemElectrical System: 7 complaints (19.4%)7 19%Unknown Or OtherUnknown Or Other: 3 complaints (8.3%)3 8%Forward Collision Avoid…Forward Collision Avoidance: 3 complaints (8.3%)3 8%Engine And Engine Cooli…Engine And Engine Cooling: 2 complaints (5.6%)2 6%Fuel/Propulsion SystemFuel/Propulsion System: 2 complaints (5.6%)2 6%
A single complaint can cite more than one component, so shares total over 100%.
ComponentComplaintsShare of complaints citing it
ENGINE1027.8%
SERVICE BRAKES822.2%
POWER TRAIN822.2%
ELECTRICAL SYSTEM719.4%
UNKNOWN OR OTHER38.3%
FORWARD COLLISION AVOIDANCE38.3%
ENGINE AND ENGINE COOLING25.6%
FUEL/PROPULSION SYSTEM25.6%

Complaints filed per year

05102021: 42022: 42023: 52024: 42025: 92026: 10 (partial year)21222324252610
Complaints by the calendar year they were filed. The hatched bar is the current year to date.
YearComplaints
20214
20224
20235
20244
20259
2026 (year to date)10
Filings in 2023 to 2025 ran 2.2x those in 2021 to 2022 (18 against 8).

Recall campaigns

CampaignReportedComponentSummary
21V61200005/08/2021TIRESGeneral 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.
23V33900011/05/2023CHILD 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 seat from being installed with the anchorage bars. As such

Other Gmc Terrain model years

Severity index for every other model year on file. Compare all 15 years side by side.

Source. NHTSA public complaint and recall APIs (api.nhtsa.gov), retrieved 2026-10-04. Complaints are unverified consumer reports. Totals vary with units sold and years on the road. Not affiliated with NHTSA or any manufacturer.