GMC Terrain Complaints

3,167 consumer complaints on file.

#11665624June 8, 2025
VISIBILITY/WIPER
The front windshield wipers suddenly stopped working while I was driving on the freeway in moderate rainfall on [XXX]. I wasn't able to see through the windshield. I will call GMC in Roseville MN on Monday, June 9, 2025 to request a service date. I waited until the rain was lighter, so I could drive from Willow River Rest Area to Moose Lake, 19 miles. It was inspected at the repair shop, Federated Co-Ops Moose Lake 017, 100 Arrowhead Ln, Moose Lake, MN 55767. (218) 485-4409. He didn't have the part to make the repair on June 6, 2025. His note: Removed engine plastic trim and wiper transmission. socket on wiper transmission popped off. reinstalled. recommend new wiper transmission. There were no prior indications or issues with the wipers not functioning properly. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11664732June 3, 2025
ELECTRICAL SYSTEM, ENGINE, POWER TRAIN
[XXX] once again while diving down the road 45mph Terrain once again goes in to park ,I was lucky the lady behind me wasn't to close .Also I contacted onstar when I was able to get vehicle moving at the store ..I told her what happen she ran diagnostics while parked at store said there was no codes I let onstar know this has happened several times..I had no warning, no indication, no lights came on.And I also let her know that this same vehicle was still stalling I was at intersection and the auto/stop is always on it will not let you bypass or default took it to dealership who I bought CPO back when it first would not let me turn it off cause its stalls at stop signs ,red lights etc crazy thing is if you turn the ac on it cranks up , if you hit the door unlock it starts... Thats not normal GMC knows that the dealership whom sold me CPO that wasn't the misleading is beyond crazy..GSM cussed me out It comes with life time warranty but when I had it towed right after I bought it 2 months ..I was talking about what the mechanics had said that this vehicle was in prior flood and accident GMC onstar has a different Vin then the one that on the vehicle..The doors are not original I can see the inside of steering wheel and on dash where they said air bags were deployed and they did a [XXX] job hiding it ... I paid over 32k for this 2020 Terrain that was advertised as CPO with 1 owner in Florida they showed me a fraudulent carfax, I pulled up my own and it came from New York ..This vehicle is not safe to drive but I dont have any other options..I have made complaint with both GMC and my finance company whom also wrote complaint on dealership and the told me I could rewind the loan but when I told dealership I knew that they sold me a vehicle that was not CPO and what I learned He came at me at dealership infront of workers and customers .. The vehicle just going to end up getting myself killed or someone else.. Semi had to run off road to avoid hitting me INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11663880May 30, 2025
ENGINE
I GOT IN MY CAR AND PROCEED TO DRIVE AND THE POWER LOW ENGINE SIGN CAME ON. TOOK TRUCK TO MECHANIC AND PAID $1000 BECAUSE GAS WAS GOING INTO MY ENGINE.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11663931May 30, 2025
AIR BAGS
The contact owns a 2024 GMC Terrain. The contact stated that while driving at an undisclosed speed, the "Service Vehicle Soon" message was displayed, and the air bag warning light was intermittently illuminated. The vehicle was taken to the dealer; however, the dealer was unable to duplicate the failure. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 10,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11663734May 29, 2025
SERVICE BRAKES
On Monday 5/26/2025 I was on the way home from work, coming down my street to turn in my drive (at approximately 2130) I pushed on the brake getting ready to make my turn, my car would not stop. It traveled maybe 100 -200 feet before coming to a stop. The brake pedal would not push in. (As I live on a cul-de-sac, if this happened during the daylight, there would have been children playing in the street and I could have killed someone's child). I managed very slowly to reverse the car and finally get it in the driveway. I thought it was going to hit my house!! Upon reading a lot of issues and complaints on my vehicle make/model I pretty much figured it was the brake vacuum pump. I called GM, however my car has 74,000 miles, is out of warranty and no recalls for my VIN so I'm told I have to have it fixed. My neighbor is a certified mechanic and has a shop. He looked at it and confirmed it is the vac pump. Not only that but the end that goes into the motor has sheared off and not there is metal pieces and fragments in my motor. I had to have it towed to his shop. (this morning) As of right now I am waiting to see if the motor can be flushed or if I am going to end up having to replace motor. I have missed several days of work due to transportation and now have to rent a car, and pay who knows how much for repairs which could easily cost thousands. I live week to week and still make payments on this car!! This is a faulty part and should have been a recall as I have read on many many complaints of bad brake vacuum pump on the GMC Terrains even the 2020 models and up. Some of the others are already recalled but not mine. In the photos, on one you can see the big chunk of metal. On another where the piece came of of motor you can see where metal was scraping the camshaft in the motor and very small metal fragments around the opening
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11663347May 28, 2025
POWER TRAIN, ENGINE
The contact owns a 2013 GMC Terrain. The contact stated that while driving 40 MPH, the transmission failed to shift as needed. The contact stated that while driving at an undisclosed speed, the vehicle stopped and stalled. There were no warning lights illuminated. The vehicle was taken to the local dealer where it was diagnosed and determined that the transmission needed to be replaced. The vehicle was not repaired. The vehicle was taken to a transmission center, which determined that the transmission needed to be replaced. The vehicle was not repaired. The manufacturer was contacted and filed a claim. The manufacturer referred the contact to the NHTSA Hotline to report the failure. The failure mileage was approximately 172,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11663432May 28, 2025
ELECTRICAL SYSTEM, ENGINE, FUEL/PROPULSION SYSTEM
5.25.2025 - Car shut down while at a busy intersection. Called Amherst Police due to location and how dangerous the intersection was. Family member needed to jump start the vehicle. Vehicle started before police arrived. Drove home. Called police to let them know we were no longer at the busy intersection. 5.26.2025 Took out battery to check charge at Auto store - tested Good - 82%. Re-installed battery went to get gas thinking that may be the issue, low on gas, not the case the car wouldn't start at the gas station. Family member needed to jump start the vehicle again. Drove home, called dealer, taking to dealer next week 6.4.2025 due to availability of service. There were no warning lights prior to stalling out both times. This is very dangerous. We are afraid to drive this GMC 2020 Terrain.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11663450May 28, 2025
POWER TRAIN, SUSPENSION
First time I had problems with my 2021 Terrain I took it to victory GMC on 9/20/24. At the it had 45,000 miles. Every time I would drive and accelerate it would shake extremely bad in the floorboard. There was also transmission fluid leaking. I picked the car up on 9/27/2024 and was advised that both front axles were replaced, which corrected the shaking and the driver side axle seal was replaced, which was where the leak was coming from. this was covered under warranty but at 45,000 miles I should not have been already having axle problems or any type of leak. I dropped my car off again on May 5, 2025. When I called them the day I made the appointment I let them know I had a service transmission message show up and then go away, I told them it’s taking longer to kick into gear when I’m on the highway, I told them it revs up past 4 1/2 RPMS at times when it had not previously done this and it just sounded like the engine is working harder. I also told them I had a check engine line come on and go off and it was code P2271 which was an oxygen sensor code. I also told them when I had the oil changed. They told me there was a slight oil cooler leak starting. All this was supposedly addressed when I dropped it off to be serviced on 5/5/25. I was called on five 625 to pick up my vehicle notifying me that they found no issues. They were unable to verify concern concerning my check engine light. They said there was no oil cooler leaking, it was just slightly seeping, so not considered a leak. And they said no transmission concern operated as designed. Fast forward to May 9, 2025… I got in my car in the morning and once again the check engine light was on. I drove it straight to GMC and had them put the reader on it. The oxygen sensor code came on. The same code I told them about on the 5th that they said was fine on the 6th. I made an appointment once again to get this check engine light looked at although the check engine light is not on at the moment again.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11663215May 27, 2025
POWER TRAIN
The contact owns a 2019 GMC Terrain. The contact stated upon taking the vehicle to the Nissan dealer where it was purchased for an oil change, the dealer informed the contact that there was a crack in the transmission. The vehicle was then taken to a GMC dealer, where the contact was informed that the crack was more than two months old. The dealer determined that the transmission needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 38,700.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11663027May 25, 2025
EXTERIOR LIGHTING
I looked up my recall on my vehicle about my headlights being recall. Never received any information there was a recall.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11662829May 23, 2025
AIR BAGS, SEAT BELTS
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. A message advising that an accident was detected and inquiring whether 911 should be contacted was displayed. The contact stated that the air bags failed to deploy, and the front driver's side seat belt failed to retract as needed. A bystander opened the driver's side door to verify that the contact was safe. The contact noticed that she was bleeding significantly and was unable to move the right shoulder and the neck. The emergency units assisted the contact out of the vehicle. The emergency units placed braces on the contact's neck and placed the contact on a stretcher. The contact was transported to the hospital, where the contact underwent X-rays and CT scans. The contact was informed that she had sustained a concussion, lumbar injuries, a fractured nose, loss of taste and smell, laceration on the inner and outer side of the bottom lip, carpal tunnel on the right hand, severe whiplash, laceration on the right shoulder, and a cut behind the right ear. The contact was in the process of undergoing MRIs. A police report was filed. The vehicle was towed and totaled, but was still under investigation. The dealer was not notified of the failure. The manufacturer was notified of the failure, and a case was filed; however, no further assistance was provided. The failure mileage was unknown.
Crash:
Yes
Fire:
No
Injuries:
1
Deaths:
0
#11662508May 22, 2025
VISIBILITY/WIPER
WHILE DRIVING IN A HEAVY RAIN IN A CONSTUCTION ZONE, WIPER QUIT WORKING. Never notified vehicle had a wiper linkage failure issue. Paid for repairs out of pocket and GM won't compensate because a GM Dealer didn't perform repair. See Service Bulletin N192266180-01, thank you!
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11662388May 21, 2025
AIR BAGS
The contact owns a 2012 GMC Terrain. The contact stated that while the vehicle was parked in the garage, the front driver's side air bag unexpectedly deployed without an impact to the vehicle. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was 148,116.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11662023May 20, 2025
POWER TRAIN, VEHICLE SPEED CONTROL
Unintended acceleration in forward and reverse: the vehicle experiences unintended acceleration both in forward and reverse. While driving in heavy traffic, the vehicle continues to maintain throttle position for approximately two seconds after releasing the throttle, creating a dangerous situation where the vehicle continues to accelerate towards other cars. This defect requires emergency braking to prevent a collision. In reverse , the vehicle also holds throttle position after the accelerator is released. This results in the vehicle unintentionally accelerating in reverse at a rapid pace. This requires the driver to depress the brake moderately to control the reverse speed. During this event the driver is fighting against the motor with the brake pedal until the vehicle decided to stop accelerating on its own.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11661661May 18, 2025
SERVICE BRAKES
Vacuum pump broke and car has no brakes
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11661501May 16, 2025
ENGINE
My vehicle started shaking & stalling really badly out of nowhere on April 18, 2025. Had to have it towed to GMC dealership. They said the engine was showing low compression. Got timely oil changes and everything on this engine. The check engine light nor any other warning light ever came on when this happened. After some research, the engine in my car, the 2.4 L engine on the 2014 - 2017 models of the GMC Terrain has known defects which although GMC has known about, they have done nothing to address the issue. There was no prior warning that the engine was failing. It was very sudden and I was in traffic when this happened putting both my safety and the safety of other drivers and pedestrians in danger.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11661246May 15, 2025
ENGINE, STRUCTURE:FRAME AND MEMBERS
The contact owns a 2014 GMC Terrain. The contact stated that the was consuming an excessive amount of engine oil; however, there were no oil leaks evident. There were no warning lights illuminated. The vehicle was taken to a certified mechanic who informed the contact that the frame near the rear wheel on the driver's side was completely rusted. The mechanic stated that the vehicle was not safe to drive. The vehicle was not diagnosed for the oil consumption failure. The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 71,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11660727May 13, 2025
ENGINE, SERVICE BRAKES, HYDRAULIC
The contact owns a 2024 GMC Terrain. The contact stated that while driving at various speeds, the vehicle was hesitating while accelerating. The contact stated that the vehicle was stalling, and the brake pedal was spongy. The vehicle was taken to the local dealer on several occasions, but the failure was not duplicated. The vehicle was not repaired. The contact stated that the failure persisted. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was 10.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11660584May 13, 2025
UNKNOWN OR OTHER
Drive shaft on my GMC Terrain needs to be repaired according to my repair shop. I brought it in as it was vibrating on acceleration and other times frequently. I was told it was the “drive shaft” and the mechanic states they have had Equinox and GMC Terrains coming in for same issue. (Specifically my year Terrain) I looked up and found this recall # for this issue: N212343560. I was never notified and now have a very expensive repair bill which may or may not fix the issue.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11660324May 12, 2025
SERVICE BRAKES
While driving the breaks completely locked up and the smell of exhaust entered through vents. Ran a code machine indicating that the break booster power vacuum pump was needing replaced. There are no other issues with my vehicle that would cause it to malfunction out of no where.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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