Timing chain issues on this model similar to the 2010-2013 models that had a class action lawsuit. The timing belt is damaged due to high oil consumption. Damage to timing belt can cause person to loose control of vehicle resulting in injury or even death.

- Lexington , NC, USA

The contact owns a 2015 GMC Terrain. The contact stated that her vehicle was consuming oil excessively which led to three separate engine failures. The contact also stated that the check oil light would illuminate on the instrument panel prior to the failure. An independent mechanic had replaced the engine all three times due to the oil consumption. Prior to the latest failure, the contact mentioned that while driving at various speeds, the power steering assists failed as the power steering failure warning message was displayed on the instrument panel. The independent mechanic informed her that the power steering had received too much electricity which would cause both the power steering and the wheels to lock up. The dealer nor the manufacturer had yet to be notified of the failure. The vehicle had yet to be repaired. The failure mileage was approximately 70,000.

- Plainfield, IN, USA

At roughly 106500 miles our Terrain started 'jumping' when stopped at a stop sign. We brought it in and our oils was low even though we are regular in oil changes and check it regularly. After a fresh oil change the dealer said they couldn't tell where it was coming from and to come back in 500 miles to check it again. At 107000 miles we brought it back in as asked. The oil was slightly low but they said they would call after talking to the mechanic to let us know if we should have concern. Shortly after we drove it to work with no sounds or movement issues but after when we started it back up it sounded made lots of noise. The noise was coming from the engine. We had it towed to the dealer and they said there was a good chance it was the timing chain because they had seen it on some other Terrains as well. They anticipated just needing to redo the timing chain since we hadn't been moving when it had issues again but the engine has damage as if it's been having issues for a bit and we need a new engine. From what I've gathered there seems to be an ongoing issue with the timing chains stretching/breaking and destroying the engines on this model. I'm surprised that I haven't seen a recall yet. Our bill was going to be 1500 and now we are anticipating 9000 for something that should never have happened. We are just fortunate we weren't driving when it did. Had we been notified of this ongoing issue ahead of time when we first experienced the loss of oil and the jumping we could have caught it in time to fix it.

- Kalispell, MT, USA

I noticed my oil L was leaking severely. I had to add oil between changes even. Ended up having both seals replaced less the 2 months ago. It is still leaking. I have to have my oil changed every 2 weeks and add 2-5 quarts between changes. Just put my 2015 Terrain back in the shop at the dealership. They informed me that there is known issues with the piston rings in previous models. Why has there not been a recall issued for this known problem? I just spent almost $3000 2 months ago and am probably looking at that much again to have the issue fixed. It's my daily driver vehicle. I live out in the county so it's a combination or highway and city driving. I do not drive crazy or hard. I routinely take care of all maintenance on the vehicle. There is no reason I should be having this issue.

- Victoria, TX, USA

On December 19, 2020 I made a trip in my 2015 GMC Terrain. The temperature was 16 degrees. Upon arriving home, I noticed a large puddle of fresh oil coming from the Terrain. I contacted my local mechanic and he advised to bring it to his shop. I added two quarts of oil to the Terrain and I drove the vehicle to his garage. He said he would call me after he accessed the situation. Later that day, he called and said GM had a recall on 2012, 2013, & 2014 model Terrains with this engine but not the 2015. The problem he advised was in cold weather the condensation inthe valve cover froze, causing oil pressure to climb and exit out engine main rear seal. The same place as had happened on my Terrain. The GM recall was# 14882. I called GM and sent a lletter to them. I was assigned case I was advised to take my vehicle to burdick chevrole, cicero, NY. Upon contacting burdick Chevrolet, I was advised by a service manager that burdick does not rate other mechanics work. He also stated there was no way to remove the engine and take it apart as the correct parts were inside the engine. He stated they would not do that. I then contacted GM and advised the work was all done internal of the engine and it was not able to verify the work. I was then advised there was no way I would be reimbursed for any or all of the $1648 bill because the 2015 year was not on the recall 14882. On Wednesday, February 17, 2021 after running errands, upon returning home, I again observed a large oil puddle of oil in my driveway. I called my wife and advised her of the oil puddle. She advised she was at church, approx 4 miles away. I immediately drove there and observed more oil under the Terrain. There was no oil registering on the dip stick. I added 3 quarts of oil I drove the Terrain 3 miles to the mechanics shop again. He installed another rear engine main seal.

- Liverpool, NY, USA

The contact owns a 2015 GMC Terrain. The contact stated while driving at 70 mph, the vehicle started to decelerate with no warning lights illuminated. The contact stated that he saw black smoke coming from the rear of the vehicle as he was pulling over to the side of the roadway. The vehicle was towed to an independent mechanic who diagnosed the failure as a broken part in the engine and that the engine needed to be replaced. The vehicle was not repaired. Neither the local dealer nor the manufacturer were notified of the failure. The approximate failure mileage was 112,000.

- Royal Palm Beach, FL, USA

I had a brand new motor put in my car at 73547 miles and now at 124079 I am having the same issues. They told me that they won't pay for it because the 100,000 warranty is up. The new parts that I put in my car will have a warranty, but the new motor that I put in my car went under the old power train warranty. Check engine light came on while driving to dealership to get an oil change and I had it towed right away to fm dealer.

- Albia, IA, USA

I have been having problems with my car sense I have owned it. From day one it started with my wheels rubbing and scrubbing when in motion.I called dealership had repairs done on it for the first 7 months.I reported the problem back then to you all. Then after 3 yrs I started to feel some hesitation when sitting or taking off.then the forth year my power steering light comes on had that fixed now my engine light keeps coming on car still having some hesitation on and off. I paid to have a diagnostic test done on it by the place that does my oil change and was told that my codes where off and they were reset but 5 days later my engine light is back on, ironically right after my five years limited warranty is over and my car only have 38,490 miles to this day and it is not yet paid for. This is ridiculous, I have spent the last 5 plus years of dealing with this new lemon and all I get is another bill add to the $528.02 a month I have to pay already. This car came highly recommended by the sales person and dealership and all I can see is that these cars are being push on hard working people that just want something reliable and its wrong. This car is frustrating and stressing me out, I cant rely on it to get me through 5 more years I thought more of the GMC product and I cant take anymore of this trying to make this bad situation better on my own. GMC needs to do something about these defective cars please.

- Jackson, MS, USA

The contact owns a 2015 GMC Terrain. The contact stated while driving 45 mph, the brake pedal was depressed and the vehicle hesitated. The contact pulled over to the side of roadway. The contact opened the hood to inspect the vehicle. The contact became aware that there was no oil in the engine. The contact added the necessary amount of oil and the vehicle operated as intended. The contact stated that the failure recurred after driving for approximately 1,000 miles with the oil warning light illuminated. The vehicle was taken to bomnin Cadillac located at (1075 SE 6th ave #2, homestead, fl 33034) to be diagnosed. The contact was informed that several unstated parts needed to be replaced. The vehicle was not repaired. The manufacturer had been informed of failure. The failure mileage was approximately 46,000.

- Homestead, FL, USA

The contact owns a 2015 GMC Terrain. The contact stated while driving at 20 mph, the vehicle stalled without warning. The vehicle was towed to an independent mechanic to be diagnosed. The contact was informed that the engine needed to be replaced due to a lack of oil in the engine. The contact stated that prior to the failure, 2 quarts of oil had been added to the engine a day earlier. The vehicle was repaired. Neither the dealer nor the manufacturer was notified of the failure. The failure mileage was unknown.

- Canton, OH, USA

I purchased a 2015 GMC Terrain from dealer ON12/18/2014. At approximately 700 miles, car would not start. Did nothing, no grinding, clicking just would not start. Had lights, radio, fan on heater. Call thornhill and car was towed there, they could not find the issue. Approximately 2 weeks later, another cold spell and car did the same. Was towed to thornhill and was there for several days. Would not start for them either, said they could not find the problem. Fast forward to today and car is still doing the same. When temperature gets to 10 or below, will not start.

- West Hamlin, WV, USA

I have a serious problem with my car the dealership to me my coil ignition has a crack in it and the is a lot carbon build up. I just bought the car in April of 2019 & I was told by car-fax the car had a 165 point inpection done on

- Phoenix, AZ, USA

The manifold and the catalytic converter is cracked and emitting hazardous carbon monoxide inside the cabin of the car. For close to 2 months my husband has been driving the car like this and we have taken it to 2 mechanics and finally found the cracks. My husband has been getting sick from the carbon monoxide. It is a blessing he is still alive. According to online google searches this is a well known issue in this vehicle. The smell is strong especially when he uses the remote starter and when the car is in motion and stationary.

- Vineland, NJ, USA

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.

- Severance, CO, USA

The contact owns a 2015 GMC Terrain. While the contact was checking the vehicle's oil level in his driveway, the oil pressure shot up from the engine without warning. The contact took the vehicle to lynch GM superstore (2300 browns lake dr, burlington, wi 53105, (262) 763-7500) in may of 2019 where it was diagnosed that the engine gasket needed to be replaced. The vehicle was repaired, but the failure was currently recurring. The dealer was not contacted again. The manufacturer was not contacted. The failure mileage was approximately 109,008.

- Racine, WI, USA

I have a 2015 terrian sle. Around 57,000 miles my terrian started burning 2+ 2+quarts of oil in between oil changes with no apparent reason, I have always kept the oil changed before it got below 7%, after noticing the oil levels dropping fast I checked it everyday. The engine light came on with my last oil change, 2 weeks ago, showing 2 bad cam sensors P0010 and P0011. I went to my mechanic only to find out that the 2.4 motors have been littered with oil leaks, timing chain problems, cam sensor issue and stalling. I paid good money for this car and I am not pleased with the continuing motor problems from GMC. If the same problem that occurred on early models is still happening, why is there not recall? I am frustrated as I have only one vehicle and the out of pocket cost is ridiculous, especially when I'm being told it's cheaper to buy a new crate motor than fix what is wrong. I have always been a fan of GMC until this. It's no wonder why everyone has switched to foreign vehicles, the ones made in the us are so cheaply made and priced 3 times there value.

- Greenwich, NY, USA

Check engine light came on, took vehicle to the dealership the same day. Was told the timing chain needed to be replaced because it was stretched. I've had the same driving habits (distance, destinations, etc) for all 4.5 years that I've had the Terrain. I've had all but 2 oil changes completed at the dealership where I purchased my car originally. I've consistently had my oil changed every time my light comes on and says it needs to be done. I had my oil changed 5 days ago, on schedule and today my engine light comes on and I'm quoted at minimum $2K for a timing chain repair. I called another GMC dealership to get a quote on the work and was told more than $3000 would be expected. Every mechanic I've talked with (at each dealership) suggested this is a known issue with GMC Terrains, equinox's, traverse's.

- Fenton, MI, USA

The contact owns a 2015 GMC Terrain. While driving 30 mph, the vehicle began to hesitate and the check engine warning indicator illuminated. Also, when depressing the accelerator pedal, the vehicle would not exceed more than 20 mph. The contact noticed oil and transmission fluid leaking from the vehicle. The contact stated that she received a letter from the manufacturer regarding the failure. The vehicle was taken to castle Buick GMC (located at 7400 w cermak rd, North riverside, il 60546, (708) 442-7474) where it was diagnosed that multiple unknown repairs were needed on the engine and transmission. The vehicle was repaired, but the failures recurred. The manufacturer was not notified. The failure mileage was 5,412.

- Chicago, IL, USA

Burning excessive amounts of oil.

- Tinley Park, IL, USA

Smelt something burning while driving. Car started bucking and jerking. I pulled into a parking lot and noticed a puddle of oil leaking out underneath my car. No check engine light or any notification that anything was wrong. Had it towed to dealership and they told me pvc froze up and blew out rear main seal. This is the 2nd time this has happened to us this year. We own another GMC (2013 equinox) and the exact same thing happened 2 weeks earlier with it. Frustrating that GMC is aware of this defect with their engines and not willing to issue a recall to correct it. We had to pay $2500 to fix the equinox. Luckily the Terrain is still under factory warranty but with both cars we were out of a vehicle for several days. Will it happen again"?"

- Festus, MO, USA