2018 GMC Terrain Seat belts Problems
- Complaints
- 3about this part
- Share
- 1%of 226 total for the year
- Median mileage
- 21,700miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the seat belts of the 2018 GMC Terrain, 1% of the 226 complaints for this model year. Where a mileage was given, the median is 21,700 miles. 1 of these say a crash was involved, according to the filers.
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.
“The Service Safety Restraint System warning light appears on the dashboard and warning chimes continually sound. To my knowledge GMC had a recall for this in 2018. I purchased the vehicle in 2021. I contacted GMC and told them this issue and they informed me that there are no recalls on the vehicle. My concerns being that airbags are fully functional.”
NHTSA complaint #11617658, filed 2024-10“The contact owns a 2018 GMC Terrain. The contact stated that while driving, the seat belt restraint warning light illuminated continuously while the driver’s and passenger’s seat belts were fastened. The dealer was informed of the failure. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 21,700.”
NHTSA complaint #11458766, filed 2022-03, 21,700 miles“The contact owned a 2018 GMC Terrain. The contact stated that while driving and nearly coming to a complete stop in the right lane, another vehicle driving approximately 40-50 MPH crashed into the rear of the vehicle, causing the contact to hit her face against the steering wheel, and the contact became unconscious temporarily. The contact stated that upon regaining consciousness, the contact noticed that the vehicle had moved to the grass by the left lane of the road, where traffic was going in the opposite direction. It was unknown whether the vehicle was involved in a second collision. …”
NHTSA complaint #11662829, filed 2025-05Seat belts: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2023 | 1 | 2% |
| 2020 | 1 | 1% |
| 2019 | 1 | 1% |
| 2018 | 3 | 1% |
| 2017 | 4 | 3% |
| 2016 | 3 | 2% |
| 2015 | 2 | 1% |
| 2014 | 2 | 1% |
| 2013 | 2 | 1% |
| 2012 | 9 | 2% |
| 2011 | 7 | 2% |
| 2010 | 3 | 1% |
Other parts of the 2018 GMC Terrain
83 complaintsEngine
55 complaintsTransmission and drivetrain
42 complaintsOther or unknown
36 complaintsElectrical system
35 complaintsFuel system
17 complaintsAir bags
14 complaintsForward collision avoidance
8 complaintsVehicle speed control
8 complaintsElectronic stability control
7 complaintsSteering
7 complaintsVisibility (wipers, defrost, mirrors)
5 complaints
← All problems reported for the 2018 GMC Terrain
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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