GMC Terrain door locks problems

Filed Sep 14, 2026 · Locks · 2,500 miles · OH

The contact owns a 2026 GMC Terrain. The contact stated that while driving 10 MPH and pulling into a parking lot, the vehicle was shifted into drive(D) and the driver’s door lock unexpectedly unlocked. The contact stated that on another occasion, a passenger in the front passenger’s seat noticed the same failure with the passenger’s side door lock. The vehicle was taken to the dealer, where it was not diagnosed or repaired. The contact expressed concern that the failure was hazardous and posed a safety risk because the doors could open while the vehicle was moving. The manufacturer was not made aware of the failure. The failure mileage was approximately 2,500.

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 Dec 29, 2024 · Body · LA

The strike plate on my rear driver door fell off. The plate and bolts are in perfect condition but the backing is gone. Multiple body shops have attempted to locate the backing, which is somewhere between the interior and exterior metal body pieces, and gave been unable to. Every body shop I've taken it to also says that they have never seen anything like this happen before. They are reluctant to fix it because that would mean cutting through the body to replace the backing for the strike plate then welding, sanding, and painting in the area they cut and they worry about the integrity of the striker and functionality of it as well, as they've never had to do a repair like this before. One of the body shops was also a certified GM repair shop at the dealership from which the car was purchased and even they have said the same as the others. They also encouraged me to report this to the federal safety agency and GM as well because they've never seen it happen or heard of it happening and they are concerned because it is a safety issue. I know that there is a similar recall on some newer GMC Terrains and wonder if my issue would be related to the recall or if it's is a separate issue all together. The striker was barely touched and someone exited my back seat and fell off into a parking lot, I was able to recover the striker and both bolts which are completely undamaged and unworn. This is my only vehicle so I now have to hold my door shut with bungee cords and tape in order to use my vehicle. I have a child who is still in a car seat and must remain in the back seat for safety but now my backseat is also not very safe because of the door. A few days prior to the striker falling off my door would not close fully flush with the rest of the vehicle but still closed, locked, and remained closed with no other issues.

Filed Jan 7, 2024 · Electrical · OH

The door locks began to have issues; the locks started to work only occassionally for no apparent reason. I've been locked out of the car several times and had to use the auxiliary key. Plus I couldn't lock the car while I was inside as the interior door lock button wouldn't lock or unlock the doors either. It's not a kefob or battery issue and no lights on the dashboard. The dealer reports that they couldn't reproduce the issue. However they found corrision on the electrical harness inside the passenger front door. I replaced an electrical harness in the rear bumper 18 months prior for corrision found. The dealer says they received a service bulletin on the "electrical harness" issue however the dealer won't cover the cost of $500 to replace the harness. As this deals with the electrical system, my concern is that it may effect the operation of other components of the car while it's running. Safety and security is of the utmost importance whether at home or away as it regards to being able to lock or unlock the doors.

Filed Sep 25, 2020 · Body · 39,000 miles · CA

Tl* the contact owns a 2017 gmc terrain. The contact stated the driver's side inside door handle was fractured. The contact was concerned about cutting her hand on the door handle. The contact called penske cadillac of south bay (18600 hawthorne blvd, torrance, ca 90504, (310) 697-1800) however, the vehicle was not diagnosed nor repaired. The manufacturer was contacted however, no further assistance was provided. The failure mileage was 39,000.

Filed Nov 16, 2019 · Electrical · IN

My car just completely shut down out of nowhere. It has happened twice when I was slowing for traffic and when I was in a parking lot. The first time I couldn't get out of the car because the door wouldn't unlock. Then the power came on but the car would not turn over. It has push button gear shifts and would not go into neutral. I had to call the police to assist until the car was towed because I was on a very busy and dangerous street. I honestly was scared someone was going to slam into me. The second time I was looking for a parking spot and it stopped. Luckily I always keep the doors unlocked since first incident had to be towed both times. As of today it is still at the dealer trying to be fixed for a second time. They 'thought' they fixed it the first time but it happened again. The dealer has had my car since october 17. They claim they know what it is. They replace some engine module and are now waiting on a push button for the gear shift.

Filed Dec 9, 2018 · Seat belts · 80,000 miles · IL

Seat belt retractors fail to retract and belt clip gets stuck in closed door. Dealer fixed once but refuses to fix at their cost. I believe this is a serious gm defect and a safety hazard because a half open jammed door will not open.

Filed Sep 13, 2018 · Engine · 60,100 miles · GA

I parked my vehicle in the driveway. Upon exiting the vehicle I used the key fob to lock the vehicle, it beeped and began to walk away. As I was about 10 steps from the vehicle, it beeped again as if I hit the fob and restarted itself. It literally restarted itself. They keys were not in the ignition, they were in my hand. I was unable to unlock the vehicle using the key fob and had to manually open the door using the actual key in the door lock. I was unable to turn the vehicle off by reinserting the key in the ignition. I wiggled the shifter and the car turned off. This is the fourth the car has been running while the keys were not in the ignition and it is the second time the vehicle restarted itself without the key being in the ignition. This is clearly a manufacturing issue. What are you waiting for to add this vehicle to the recall list? Property damage and personal injury will eventually occur and then I will sue gmc for damages. I am officially putting gmc on notice. Please recall this vehicle and fix this issue.

Filed Dec 1, 2016 · 106,000 miles · PA

The defroster and heating stopped working. It blows out air but its cold air. I have always had to play with the control to get it to work but its never stopped working altogether until friday, 11/25/2016. I live in the snow belt and I cannot defrost my windows to even see out of them. I see there was a recall in 2009 for my type of vehicle for the same type of issue. The controls for the door lock on the same panel also stopped working.

Filed Aug 4, 2014 · Locks · 1,500 miles · FL

Tl* the contact owns a 2014 gmc terrain. The contact stated that while driving at 60 MPH, the doors automatically unlocked whenever the door handles were pulled. The contact mentioned that on two occasions while driving and the child lock activated, the failure recurred. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The VIN was unavailable. The approximate failure mileage was 1,500.