2018 GMC Terrain Lane departure Problems
- Complaints
- 2about this part
- Share
- 1%of 226 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 lane departure of the 2018 GMC Terrain, 1% of the 226 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.
“It starts to “warn” you by the seat doing whatever it does and the dash lights up collision flashing and slams on the brakes when nothing is even around”
NHTSA complaint #11682338, filed 2025-08Lane departure: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 2 | 6% |
| 2025 | 1 | 8% |
| 2024 | 1 | 2% |
| 2023 | 4 | 10% |
| 2021 | 2 | 6% |
| 2020 | 2 | 1% |
| 2018 | 2 | 1% |
| 2016 | 1 | 1% |
| 2015 | 2 | 1% |
| 2014 | 2 | 1% |
| 2013 | 1 | 0% |
| 2010 | 1 | 0% |
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