2021 GMC TERRAIN — Problems, Recalls & Safety Data
5/5
Safety Rating
46
Owner Complaints
2
Recalls
28
Service Bulletins
0
Investigations
Overview of the 2021 GMC TERRAIN
The 2021 GMC TERRAIN has received a total of 46 safety complaints filed with the National Highway Traffic Safety Administration (NHTSA). It earned an overall safety rating of 5 out of 5 stars in NHTSA's New Car Assessment Program crash tests. There have been 3 recall campaigns affecting this vehicle, covering issues with CHILD SEAT:VEHICLE LATCH ANCHOR, TIRES:TREAD/BELT, TIRES. 28 technical service bulletins have been issued by General Motors, LLC for this model year. The most commonly reported problems involve the Electrical System (7 complaints), Power Train (7 complaints), and Engine (6 complaints).
Recalls for the 2021 GMC TERRAIN
NHTSA has recorded 3 recalls for the 2021 GMC TERRAIN, potentially affecting up to 687,381 vehicles.
Recall 23V339000 — CHILD SEAT:VEHICLE LATCH ANCHOR
| 668,187 vehicles affected
Defect: 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...
Consequence: 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.
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...
View full details →Recall 21V612000 — TIRES:TREAD/BELT
| 9,597 vehicles affected
Defect: 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.
Consequence: Tread separation can result in a loss of vehicle control, increasing the risk of a crash.
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...
View full details →Recall 21V612000 — TIRES
| 9,597 vehicles affected
Defect: 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.
Consequence: Tread separation can result in a loss of vehicle control, increasing the risk of a crash.
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...
View full details →Owner Complaints for the 2021 GMC TERRAIN
46 complaints have been filed with NHTSA for the 2021 GMC TERRAIN. Below is a breakdown by vehicle component.
| Component | Complaints | Crashes | Fires | Injuries | Deaths |
|---|---|---|---|---|---|
| Electrical System | 7 | 0 | 0 | 0 | 0 |
| Power Train | 7 | 0 | 0 | 0 | 0 |
| Engine | 6 | 0 | 0 | 0 | 0 |
| Service Brakes | 5 | 2 | 0 | 2 | 0 |
| Unknown Or Other | 3 | 0 | 0 | 0 | 0 |
| Forward Collision Avoidance Automatic Emergency Braking | 2 | 0 | 0 | 1 | 0 |
| Fuelpropulsion System | 2 | 0 | 0 | 0 | 0 |
| Lane Departure Blind Spot Detection | 2 | 1 | 0 | 0 | 0 |
| Suspension | 2 | 0 | 0 | 0 | 0 |
| Air Bags | 1 | 1 | 0 | 1 | 0 |
| Child Seat | 1 | 0 | 0 | 0 | 0 |
| Engine And Engine Coolingengineengine Control Module Ecuecm | 1 | 0 | 0 | 0 | 0 |
| Forward Collision Avoidance Adaptive Cruise Control | 1 | 0 | 0 | 0 | 0 |
| Forward Collision Avoidance Warnings | 1 | 1 | 0 | 0 | 0 |
| Fuel System Gasoline | 1 | 0 | 0 | 0 | 0 |
| Fuel System Gasolinedeliveryfuel Pump | 1 | 0 | 0 | 0 | 0 |
| Steering | 1 | 0 | 0 | 0 | 0 |
| Vehicle Speed Control | 1 | 1 | 0 | 0 | 0 |
| Visibilitywiper | 1 | 0 | 0 | 0 | 0 |
Most Recent Complaints
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 center.
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 center.
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 center.
around chirstmas, Was driving on the highway and the car threw a "reduced engine power" warning and went into limp mode. Check engine light came on. Car asymptomatic prior. got the code pulled and it said turbocharger under boost. The next day the check engine light went out and car was running appropriately. Took the car on the highway again and the car threw the "reduced engine power" warning and went into limp mode again in the middle of freeway traffic. It is a safety concern due to the engine going into limp mode in the middle of high speed traffic. I easily couldve caused an accident putting both myself and others in danger by the engine cutting the power in the middle of the freeway. The check engine light only comes on while going at freeway speeds. The light will then go out overnight and come back on the next time i go back on the freeway at 70-80mph speeds. I have taken it to one shop which reported an oil leak coming from the turbo both inside and outside and that it needed to be replaced. I have read several different forums of other users of the same year, make, and model experiencing the same issue. the car is only a few years old and the likelihood of a turbocharger being bad is uncommon but a major safety concern considering this happened out of nowhere with no signs or symptoms leading up to this.
The contact owns a 2021 GMC Terrain. The contact received notification of NHTSA Campaign Number: 23V339000 (Child Seat); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was contacted and informed the contact that the vehicle would not be inspected or repaired. The manufacturer was made aware of the issue. The contact had not experienced a failure.
Safety Rating for the 2021 GMC TERRAIN
The 2021 GMC TERRAIN received an overall safety rating of 5 out of 5 stars from NHTSA's New Car Assessment Program (NCAP).
| Test Category | Rating |
|---|---|
| Overall Rating | ★★★★★ (5/5) |
| Frontal Crash | ★★★★★ (5/5) |
| Side Crash | ★★★★★ (5/5) |
| Rollover | ★★★★☆ (4/5) |
Safety ratings are based on controlled crash tests conducted by NHTSA. A 5-star rating indicates the highest level of occupant protection.
Technical Service Bulletins for the 2021 GMC TERRAIN
General Motors, LLC has issued 28 technical service bulletins (TSBs) for the 2021 GMC TERRAIN. TSBs are notices sent by manufacturers to their dealers describing a known issue and the recommended repair procedure.
PIT5812F — UNKNOWN OR OTHER
This preliminary information announces the end of an engineering investigation into a brake pad noise.
24-NA-139 — FUEL/PROPULSION SYSTEM
This bulletin provides a procedure to replace the FPDCM if found to cause customers concerns of Crank No Start, Stalling, Loss of Power, Fuel Gauge Inoperative/Erratic, MIL Illuminated - DTC P023F and/or P129F Set.
PIT6140 — BACK OVER PREVENTION
This preliminary information discusses potential camera functional issues if the camera is not properly programmed.
24-NA-054 — SEATS
This service bulletin provides information on No Heated Seats or Heated Steering Wheel During Remote Start.
PIT5823A — FUEL SYSTEM, GASOLINE
This preliminary information discusses the possibility and repair of water entering a connector and causing fuel system electrical or battery drain concerns .
PIT5823A — ELECTRICAL SYSTEM
This preliminary information discusses the possibility and repair of water entering a connector and causing fuel system electrical or battery drain concerns .
PIT5992 — ELECTRICAL SYSTEM
This preliminary information discusses a condition that may arise from the drivers window switch sending an errant message causing the vehicle to enter manual fob learn mode.
23-NA-021 — ENGINE AND ENGINE COOLING
This service bulletin advises the tech that the rotational Clicking Noise Heard After Engine Shut Down may be normal characteristics of the vehicle.
PIP5812C — ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
This Preliminary information communicates the possibility of dtc p0299 p0234 setting due to oil/moisture cndensate freezing in Turbocharger Wastegate Regulator Solenoid Valve (TCV) during cold weather driving
PIT5887A — POWER TRAIN
This preliminary information discusses an intermittent power up but no crank concern that could be the B+ stud on the starter oxidation.
Showing 10 of 28 technical service bulletins.
NHTSA Investigations for the 2021 GMC TERRAIN
There are no NHTSA defect investigations on record for this vehicle.
Other Model Years of the GMC TERRAIN
- 2016 GMC TERRAIN — 174 complaints
- 2017 GMC TERRAIN — 176 complaints
- 2018 GMC TERRAIN — 305 complaints
- 2019 GMC TERRAIN — 269 complaints
- 2020 GMC TERRAIN — 250 complaints
- 2021 GMC TERRAIN (current)
- 2022 GMC TERRAIN — 51 complaints
- 2023 GMC TERRAIN — 37 complaints
- 2024 GMC TERRAIN — 44 complaints
- 2025 GMC TERRAIN — 16 complaints
- 2026 GMC TERRAIN — 10 complaints
Other GMC Models
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- GMC YUKON — 6,108 total complaints
- GMC SIERRA — 4,896 total complaints
- GMC JIMMY — 3,778 total complaints
- GMC ENVOY — 3,269 total complaints
- GMC YUKON XL — 2,820 total complaints
- GMC SUBURBAN — 2,323 total complaints