2015 GMC Terrain body problems

Filed Oct 6, 2026 · Body · IN

Tailgate lifts by itself

Filed Mar 2, 2026 · Body, Suspension · NY

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 to 94,000 in February 2026. If there was rust which there probably was the car should have not been sold if the rust was enough to cause problem later on. I may need to go purchase a new car while still owe some money in the car loan. Rust and hole in the rear control arm. The amount to replace and repair all the parts with labor exceeds current value.

Filed Jan 3, 2026 · Body · OH

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 then closed. You cannot stop it from closing down on you if you are trying to load or unload into that compartment. We have had to stop using altogether.

Filed Jun 12, 2023 · Body · AK

The contact owns a 2015 GMC Terrain. The contact stated that moisture was leaking into the vehicle from an unknown location. The contact stated that the leak first started on the front driver’s side of the vehicle. The contact took the vehicle to an independent mechanic where the mechanic was unable to identify the source of the leak. While attempting to prevent mold from forming inside the vehicle, the front interior carpeting of the vehicle was detailed and vacuumed. The contact stated that recently the leak returned on the passenger’s side of the vehicle. Neither the dealer nor the manufacturer was notified of the failure. The vehicle was not repaired. The failure mileage was unknown.

Filed May 4, 2022 · Body · 102,000 miles · OH · 1 injury

The contact had a dealer loaner vehicle, a 2015 GMC Terrain. The contact stated the liftgate raised up extremely fast and caused the hydraulic on the passenger side to detach. Once the hydraulic fell, the liftgate hit her in the head, and she became unconscious. A random person assisted contact. Once she became conscious she drove herself to an emergency. The contact was diagnosed with major injuries of spinal whiplash and consciousness. The contact had been scheduled for a neurologist. The dealer was notified of the failure; however, were not of assistance. The dealer informed the contact to notify GMC of the failure. The manufacturer has not been notified. The approximate failure mileage was 102,000

Filed May 18, 2021 · Body, Tires · 26,000 miles · MD

The contact owns a 2015 gmc terrain. The contact stated while driving at various speeds, the tire pressure monitoring system detected that all tire pressure were low. The contact was constantly adding air to each tire every other day. The contact also stated that there was water leaking into the vehicle leading to mold growing onto the interior of the vehicle. The contact stated the low tire warning light was illuminated. The vehicle was taken to the local dealer where it was diagnosed with the valve stems needing to be replaced. The mold was removed and the valve stems were replaced however, the failure persisted. The manufacturer was informed of the failure and informed the contact that he would receive a callback. The failure mileage was approximately 26,000.

Filed Dec 17, 2019 · Acceleration, Body · 60,000 miles · CO · crash

While pulling into a parking spot very slow the vehicle accelerated and damaged car in front there are traction marks showing the sudden acceleration. The car would not stop until the ignition was turned off. Because the cars in front were hit I placed the car in park after the ignition was turned off.

Filed Dec 6, 2019 · Body · 40,000 miles · TX

There is water leaking (possibly from the air conditioner) onto the floorboard of the front passenger side. This has caused mold to form and grow in the carpeting. It is constant and is getting worse.

Filed Oct 1, 2019 · Body · 54,410 miles · OK

The rear hatch will fully open and then falls part way or fully without any cause. It hit me in the head and back as I was not expecting the hatch door to fall. This was obviously while the car was parked in a garage.

Filed Apr 26, 2019 · Body · 48,000 miles · PA

Tl* the contact owns a 2015 gmc terrain. The contact stated that the liftgate lifted and lowered on its own. The liftgate struck the contact's spouse and then lifted again. The contact's spouse had to hold the liftgate before it struck their daughter. The liftgate eventually closed on its own. There were no injuries. The contact made an appointment next week with johnson motors (1891 blinker pkwy, dubois, pa 15801, (877) 816-0659) to have the vehicle diagnosed and repaired. The manufacturer was made aware of the failure and did not assist. The failure mileage was 48,000.