I was driving back home from the store Friday night and my wheels start squeaking and increasingly became hard to then the wheel whenever I turned. When I got home tried to park the wheels locked up and I couldn't turn the wheels anymore. Diver the car again Monday it was fine until I was my way home again the wheels locked up, car wouldn't accelerate part 2nd gear, then I wasn't able to reverse and my engineer light came on. I just bought the car 5 months ago from a dealership. No I don't have a warranty and there is 86927 miles on it. No accidents whatsoever. I recently found out that this vehicle is known to have transmission failure.

- Warren, MI, USA

Hesitation and lag on acceleration after hard or quick brake application. Feels like engine momentarily stalling or trans mission not engaging for one or two seconds.. happens when vehicle is in motion, happens in stop and go traffic, happens coming out of turns, also in straight line motion. Poses a safety risk such as when entering an intersection and not being able to accelerate through the intersection to avoid collision with other vehicles crossing that intersection.

- Fort Walton Beach, FL, USA

My Terrain has used so much oil since it was purchased and we keep the oil changed every time it's needed now the timing chain is messing up and is going to be expensive to fix I have read online where the 2011S have the same issue, the repairs are too expensive my fianc got laid off due to covid-19 I'm the only one working I need help and don't know where to turn to, the truck stoped going in the middle of me turning into a gas station I was almost rear ended.

- Kennett, MO, USA

The contact owns a 2011 GMC Terrain. While driving approximately 60 mph, the vehicle decelerated to approximately 30 mph and did not accelerate. The vehicle was taken to an independent mechanic who stated that the total control module failed and needed replacement. The vehicle was repaired, but the failure recurred. The vehicle was taken to the same independent mechanic who stated that the vehicle had a very high oil consumption and needed a new engine. The mechanic stated that the repair was not covered under warranty. The vehicle was not repaired again. The manufacturer was notified. The dealer was contacted. The approximate failure mileage was 100,715.

- Bolingbrook, IL, USA

My GMC Terrain 2011 is having trouble accelerating, and I hear a noise from the engine. When I am at a stop light and I try to accelerate, it pulls and doesn't go forward. It's stalking my Terrain. I did some research, and I found that this vehicle has a recall #12313D- special coverage adjustment- engine balance chain and fuel pump. I looked up, and it seems this vehicle has 0 unclaimed recalls. So, I'm concern because this vehicle is stalling and not working as it should be. The recall does say, 'if left untreated, could cause the chain to break, leading to engine damaged.

- Milwaukee, WI, USA

I have been having an issue with the stability track/reduced engine power coming on. I will be driving and then the reduced engine power with an exclamation mark pops up, my car speed drops and then the car cuts off. The car would crank back up after sitting for a while. After researching this, I found that several other GMC, Chevy and Cadillac had this same issue and were given the run around by GMC when trying to have it fixed. There was a recall for those vehicles but not the Terrain. I have had the throttle body cleaned like suggested and that did not solve the problem. The problem occurs no matter if I am on the highway or regular streets. Being a single parent of 3 and legal guardian of 1 grandchild, I don't have money to keep trying to repair this issue. I had my transmission looked at and that was not the issue. How can I get them to correct the stability track/reduced engine power issue? I have been without my car for a week now. This is making it hard to get back and forth to work. I am actually calling the GMC headquarters to report this issue and then the better business bureau.

- Winston Salem, NC, USA

I bought a used 2011 GMC Terrain with a clean carfax and 35000 miles on it. I have had nothing but problems. The car burn at least a quart of oil every 2 weeks. The constantly just cuts off when driving. GMC needs to do sometime about this before peolpe are killed.

- Homestead, FL, USA

The contact owns a 2011 GMC Terrain. The contact stated while driving at approximately 65 mph, the vehicle decelerated independently. The vehicle was towed to an independent mechanic where it was not diagnosed or repaired. The dealer was not contacted. The manufacturer was notified of the failure. The approximate failure mileage was 103,000. The VIN was not available.

- Patterson, NY, USA

This car stalls for no reason while driving. I have fixed it multiple times but no fix works. It stalled on me while exiting the freeway yesterday, very scary situation. I am worried I will be in a wreck. I press the gas and the car will not accelerate. Very dangerous in certain situations. Especially when it stalls while making a turn in a intersection. Almost got T-boned the other day when it stalled while a car was oncoming. Since GM is not willing to acknowledge the problem and have not fix in place I will be getting rid of the car at my loss.

- Dade City, FL, USA

2011 GMC Terrain. Consumer writes in regards to engine and vehicle acceleration issues. The consumer stated when he accelerated from 25 to 35 mph, he experienced a sudden loss of power to 5 mph. The dealer replaced the throttle body.

- Marshall, MI, USA

While driving message read reduced engine power lost all power could not control the steering wheel! then the car shut down and continued to roll down the highway.almost got hit by other cars from behind. Very frightening for me I almost got a panic attack. I managed to stop the car on the shoulder of the road with half of the car still blocking other cars.car will not start. The battery is new.I have done research on social media and there's thousands of GM customers who have or are facing the same issues. Is this another cover up by GM that's continuously ignoring this problem and the consumers are paying thousands of dollars in this repair. I was told I need repairs that will cost $4000 dollars on a 2011 GMC Terrain car I got a year ago. This is ridiculous. Who is fighting for the consumers?

- Iowa, IA, USA

I was driving on the highway at 60 mph and all of a sudden lost power. The reduced power and check stabilitrak messages appeared on the screen. I pulled over to the side of the road and turned the engine off. I immediately tried starting the vehicle again and it did, so went on my way. Got down the road about three miles and the same thing, so pulled to the side of the road and turned the engine off. I tried to start the vehicle, but there was no response, everything was dead. I waited several minutes and tried again and it started. I continued on my way and didn't have anymore trouble getting to my destination. A couple of days later, the same thing happened except when I tried to turn the vehicle off, it continued to run very roughly and then finally shut off. It did start again and had the engine light on. I've had the vehicle to the local GMC dealer when the first incident happened, however when they tried to read the codes, there were no codes to read even though the engine light was on. I was told everything checked out fine. I was down the to dealer again today with the engine light on again, but before they could check it out, the engine light had gone out. To me this is a very serious problem as it can very easily cause an accident. So far I've been lucky that I haven't lost the power steering or brakes.

- Montevideo, MN, USA

The contact owns a 2011 GMC Terrain. The contact stated that while driving at 50 mph, the vehicle decelerated independently to 30 mph. The vehicle was taken to a dealer, who diagnosed the that the throttle body needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 44,000.

- Roscommon, MI, USA

While traveling on interstate 376 West out of down town pittsburgh, pa during rush hour the service stabilitrack warning message appeared and then the reduced engine power warning came on. At the time we were traveling about 45 mph and the engine would not go any faster than 20 mph when we got the messages, we had to try to get over to the side of the road.... we turned off the vehicle and waited 10 minutes and it reset itself... it happened 3 more times on Monday 12/22 and the last time I could barely turn the steering wheel.. it turned out to be the throttle body needing replaced.

- Mt Holly Springs, PA, USA

Our vehicle has experienced the rough idle and hard/stalled shifting since we bought it in 2011. It has been reviewed by the dealership and we were told a recent recall would fix the issue. It did not and these issues have continued. Recently, this issue happened again, followed by the check engine light turning on, followed by (a few hours later) the engine going into "reduced engine mode" and the entire vehicle shaking uncontrollably with thumping noises coming from the front of the vehicle. The vehicle was stopped and restarted and within a few miles, this same issue happened again, which was very difficult to handle and very unsafe for travel in the city. We had to get a tow to the dealership and the service department at the dealership we bought this from says the throttle positions sensor is defective and needs replaced as well as there is a misfire in the injectors due to carbon buildup in the fuel line. None of these repairs are covered under the power train warranty, and this vehicle only has 50,000 miles on it currently. Upon research of these part, symptoms of this part going out are stalled shifting or hard shifting, as well as rough idling. Please research this case as I feel this is a more universal problem that has yet to be addressed properly.

- Kansas City, MO, USA

The contact owns a 2011 GMC Terrain. The contact stated that there was an oil leak and the vehicle shifted erratically. The vehicle was taken to the dealer several times where it was confirmed that there was an oil leak and the throttle body needed to be replaced. The vehicle was repaired and the transmission was eventually replaced but both failures recurred. The manufacturer was contacted about the failure. The failure mileage was 26,000.

- Blakely, PA, USA

My truck experienced it's first problem in August of 2011. I had only had my truck for six months. The truck was entering onto the expressway and as I was pressing the gas the truck begin to stall. The reduced engine light came on and the truck decelerates and cut off. We were blessed that we were able to get to right shoulder of the road. We waited about ten minutes, the truck finally started and the engine light remained on. I contacted the dealer and took the truck in as soon as I could get an appointment. Was told the truck was fixed and since I have been in five times for the same problem. The fact that the truck decelerates while driving on the expressway is enough that I don't want to drive the truck. I have been using other peoples cars and trucks because I don't want to put mine on the expressway out of own. It is a death trap waiting to happen and anyone driving a Terrain should be made aware of the problem. The service department did everything possible and had to contact manufacturer about the problem and they could not narrow down the problem. They have replaced so many parts at this point I have lost track of things that have been replaced. This truck is not safe and the problem is not been resolved. The car still idles and shakes and no one plans to find out why as long as the engine light is not on. No one wants to take responsibility for this issue and it is really disappointing that the manufacturer would rather not deal with this problem and wait for a fatality to occur before looking into. You would think they would learn from Toyota and take customers lives seriously. Would they put there families in this truck ? I just want them to take the truck back because I don't want to use my life as an example for a defective truck.

- Chicago, IL, USA