FREE VEHICLE RESEARCH
2021 GMC Terrain AWD
The 2021 GMC Terrain AWD has 2 NHTSA safety recalls on file, 33 owner complaints, and gets about 26 mpg combined. Here's the full free record from NHTSA and the EPA.
SPECS
2021 GMC Terrain AWD at a glance
- Engine
- 4-cyl 1.5L
- Cylinders
- 4
- Displacement
- 1.5 L
- Drivetrain
- All-Wheel Drive
- Transmission
- Automatic 9-spd
- Body
- Small Sport Utility Vehicle 4WD
- Fuel
- Regular
Source: EPA / NHTSA vPIC, as of July 10, 2026.
SAFETY RECALLS · NHTSA
2 openTires
05/08/2021
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.
Remedy: 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.
Child Seat
11/05/2023
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."
Remedy: 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.
NHTSA has opened one or more investigations covering this model. Recalls can follow an investigation, so check NHTSA for the latest before you buy.
Open safety recalls are free to fix at any franchised dealer. What recalls mean → Source: NHTSA recalls, as of July 10, 2026. Recalls can be issued any time, confirm by VIN at nhtsa.gov before you buy.
OWNER COMPLAINTS · NHTSA
33 filed- 7
POWER TRAIN
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 from a code read. Issue was confirmed by Gastorf Chevrolet, and an indepe
- 5
SERVICE BRAKES
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 miles an hour. When I applied the brakes the car would not stop. I had two
- 5
ELECTRICAL SYSTEM
Driving my vehicle with no warnings, messages, or symptoms on adaptive cruise control Sunday [XXX] on [XXX] in Michigan. I changed lanes into the right lane when the vehicle abruptly, without notification, and with force, caused braking tha
- 4
ENGINE
The contact owns a 2021 GMC Terrain. The contact stated that while driving at various speeds, the vehicle hesitated while depressing the accelerator pedal, with a misfire coming from the engine. During the failure, the message "Engine Power
- 3
UNKNOWN OR OTHER
Constantly have water leaking into spare tire compartment, back seat floors and passenger floor. Mold/mildew smell coming through vents. Have had drains lines cleaned out, and still recurring having this issue. Unknown where leak is coming
- 2
SUSPENSION
First time I had problems with my 2021 Terrain I took it to victory GMC on 9/20/24. At the it had 45,000 miles. Every time I would drive and accelerate it would shake extremely bad in the floorboard. There was also transmission fluid leakin
Problems owners reported to the government, useful for spotting patterns, not proof any one car has them. What complaints mean → Source: NHTSA complaints, as of July 10, 2026. Owner-submitted reports, not verified diagnoses.
CRASH-TEST RATINGS · NHTSA NCAP
- Overall
- ★★★★★
- Frontal
- ★★★★★
- Side
- ★★★★★
- Rollover
- ★★★★☆
Government crash tests of this model; not every trim or year is tested. Source: NHTSA NCAP, as of July 10, 2026.
FUEL & RUNNING COST · U.S. EPA
- Combined
- 26 mpg
- City / Hwy
- 25 / 28
- Est. fuel / yr
- $2,400
- CO₂ / mi
- 342 g
EPA lab estimates; real mpg varies by how you drive. Source: EPA fueleconomy.gov, as of July 10, 2026. Annual cost assumes 15,000 mi/yr at EPA's reference price.
All figures above come from free U.S. government sources: NHTSA (recalls, complaints, investigations, crash tests) and the EPA (fuel economy and specs). We don't show market price, insurance cost, or proprietary reliability scores, because there's no free, reliable public source for them. For a verdict on a specific listing, with a fair-offer number and what to ask the seller, that's the VINly app.
BEFORE YOU BUY
What to check on this car
Confirm the recalls were fixed
This model has 2 open NHTSA recalls (including the tires). Recall repairs are free at the dealer, so ask the seller for proof the remedy was performed, or verify by VIN at nhtsa.gov before you buy.
Watch for a pending investigation
NHTSA has an open investigation covering this model. A recall can follow an investigation, so check nhtsa.gov for the latest before you commit.
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Test-drive the basics
Cold start, full-lock steering both ways, firm brakes with no pulsing, smooth shifts, and every electronic feature. Warning lights should come on at key-on, then go out.
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Check the title and the VIN
Confirm the title status in hand matches the listing, and that the VIN matches across the dash, door jamb, and title. VINly does not show ownership or accident history, for that, run a paid report like Carfax.
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Ask the seller the right questions
Why they are selling, any service records, accident or panel-repaint history, how many owners, and whether any open recalls were completed.
See the full used-car inspection checklist. None of this replaces a hands-on inspection by a mechanic.
Quick answers
What is recalled on the 2021 GMC Terrain AWD? +
NHTSA lists 2 safety recalls for the 2021 GMC Terrain AWD, including the tires. See the full list above, and confirm by VIN at nhtsa.gov.
What gas mileage does the 2021 GMC Terrain AWD get? +
The EPA rates the 2021 GMC Terrain AWD at 26 mpg combined (25 city / 28 highway), about $2,400 a year in fuel.
How safe is the 2021 GMC Terrain AWD? +
NHTSA's NCAP program gives the 2021 GMC Terrain AWD 5 out of 5 stars overall, with 4 stars for rollover resistance.
What do owners complain about on the 2021 GMC Terrain AWD? +
Owners have filed 33 complaints with NHTSA for the 2021 GMC Terrain AWD, including 4 involving a crash. The most-reported area is power train.
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