2021 GMC Terrain Suspension Problems
- Complaints
- 2about this part
- Share
- 6%of 36 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the suspension of the 2021 GMC Terrain, 6% of the 36 complaints for this model year.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Just purchased this vehicle has about 64500 miles on it. When accelerating between 40-55 (hard acceleration) my vehicle wobbles really bad, seems like a tire issue. Have had the front end looked at, and tires all balanced and inspected. Noting out of the ordinary. Then all of a sudden my rear view back up camera works, but my back up assist symbols are not showing/working. I checked the settings and they are turned on. …”
NHTSA complaint #11507301, filed 2023-02“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 leaking. I picked the car up on 9/27/2024 and was advised that both front axles were replaced, which corrected the shaking and the driver side axle seal was replaced, which was where the leak was coming from. this was covered under warranty but at 45,000 miles I should not have been already having axle problems or any type of leak. …”
NHTSA complaint #11663450, filed 2025-05Related service bulletins
- 11019516Apr 17, 2025This preliminary informational (PI) bulletin provides information to dealership personnel that may be helpful when addressing underbody component corrosion with customers.
- 11015409Feb 25, 2025This service bulletin provides information on Wheel Alignment Specifications, Requirements and Recommendations for GM Vehicles.
- 11007936Aug 22, 2024This service bulletin provides information to dealership personnel on diagnosis and replacement of shock absorber and strut due to fluid leak.
- 11007935Aug 22, 2024This service bulletin provides information to dealership personnel on diagnosis and replacement of shock absorber and strut due to fluid leak.
- 11000119Apr 26, 2024This service bulletin provides technicians with information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.
Suspension: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 5 | 15% |
| 2025 | 2 | 15% |
| 2022 | 1 | 2% |
| 2021 | 2 | 6% |
| 2020 | 2 | 1% |
| 2019 | 3 | 2% |
| 2018 | 3 | 1% |
| 2016 | 1 | 1% |
| 2015 | 1 | 0% |
| 2014 | 1 | 0% |
| 2013 | 7 | 2% |
| 2012 | 4 | 1% |
| 2011 | 5 | 1% |
| 2010 | 3 | 1% |
Other parts of the 2021 GMC Terrain
10 complaintsBrakes
8 complaintsTransmission and drivetrain
8 complaintsElectrical system
7 complaintsFuel system
4 complaintsOther or unknown
4 complaintsForward collision avoidance
3 complaintsEngine cooling
2 complaintsLane departure
2 complaintsAir bags
1 complaintsSteering
1 complaintsVehicle speed control
1 complaints
← All problems reported for the 2021 GMC Terrain
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology