2015 GMC Terrain structure problems
13 owner complaints filed with NHTSA name the structure on the 2015 GMC Terrain — 4% of all complaints for this model year.
What owners report
“2015 gmc terrain sle awd. Suv was taking in for oil change found excessive rust on frame under all four doors. On both sides rust and holes near the front of both rear wheels. I believe its called the "rocker" I'm unsure. I bought the car at a little over 71,000 miles in 2022-2023 now just getting…”
filed Mar 2, 2026
“First occurrence in September 2015. Rear lift gate acted abnormally, when I was parked,y son opened the lift gate using the normal door handle button, it raised, but as he was loading it lowered onto him. He is small, I had to get out and pull it off of him, it went up and down a couple times and…”
filed Jan 3, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Structure problems in other Terrain years
| Year | Reports | Share |
|---|---|---|
| 2026 Terrain | 2 | 9% |
| 2024 Terrain | 1 | 2% |
| 2023 Terrain | 1 | 3% |
| 2020 Terrain | 5 | 3% |
| 2019 Terrain | 1 | 1% |
| 2018 Terrain | 3 | 1% |
| 2017 Terrain | 7 | 5% |
| 2016 Terrain | 3 | 2% |
| 2014 Terrain | 5 | 2% |
| 2013 Terrain | 12 | 3% |
| 2012 Terrain | 12 | 3% |
| 2011 Terrain | 11 | 3% |
Other reported problem areas on the 2015 GMC Terrain
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.