2015 GMC TERRAIN Complaints

Not really sure if it is electrical but the Stabilitrak light came on and the car jerked and I could not go over 50 mph and that would be fine however when you are on a freeway and the speed limit is much greater you could cause and accident. I took the vehicle to a garage and they put it on there computer and reset it and it seemed to work OK until I again went on the freeway and the same thing happened. Again I took it back to the same garage and they recommended I take it to a GMC Dealer which I did and they could not find the problem either after spending around $600.00. I did take it to the GMC Dealer which the vehicle make is a GMC.The problem, to the best of my knowledge, started about April 2023.

Engine lost power suddenly while driving. No warning. Fuel pressure slowed to where vehicle no longer moved forward. Again. No warning. Timing chain slipped TWICE and destroyed engine without warning. “Engine power lost” appeared on dash from driving without warning or incident. Excessive oil consumption without warning. Smoking engine even though had regular oil changes. Engine had been inspected by dealership and allegedly had no issues. Car never smoked but did after second time of timing chain slipping/breaking. This issue has happened repeatedly to many drivers who own these vehicles. Had a difficult time stopping after engine and total power failure without warning.

During a long distance trip, the timing chain tensioner failed. There were no obvious signs of this condition when driving at highway speeds. No warning lights or reduced engine performance! After traveling over 200 miles, we stopped and discovered the engine was running very rough. We decided to stay overnight in a hotel and check the condition of the Terrain in the morning. The next day the car, started briefly and then stalled. It didn’t start again. We had the vehicle towed and the repair shop determined the the timing chain tensioner broke at some point on our trip. This caused the chain to come partially loose and that in turn “chewed up” the gear teeth. The metal fragments from the gears spread throughout the entire engine. This resulted in the engine to be declared unrepairable. If we hadn’t stopped, the engine could have creased up, and the almost assuredly would have resulted in a serious car accident. This was an expensive repair, approx $8000 and we incurred the cost of staying in a hotel for a week.

The contact owns a 2015 GMC Terrain. The contact received notification of NHTSA Campaign Number: 22V137000 (Exterior Lighting) however, the part to do the recall repair was unavailable. The local dealer was contacted, and it was confirmed that the part was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced the failure. Parts distribution disconnect.

Never had issues on my vehicle I only have 42,000 miles when I brought my vehicle it only had 28,000 miles I had two recalls recently fixed 2/21/2023 a month later while driving my vehicle stopped and check engine light came on also there is a dinging sound whenever I get into my car which wasn’t there before I was in my parking lot parking my car when it shut off 3 times

2015 GMC Terrain-The PCV system or rear engine seal froze and burst. It happened last month when GA experience record cold weather. When the vehicle’s PCV system freezes it caused pressure to build up in the vehicle’s crankcase that breaks or pops out the rear main engine seal and caused all of the oil to drain from the vehicle while driving. The engine has completely seized and will need to be replaced. There are several bulletins issues about this but no recall. After researching I see there has been a few class action suits filed within the past 12 months. This apparently has happened to quite a few people. I am now up to over 9K total. The PCV repair was 2800, then the timing chains 1800, only to find out that the engine suffered as well. New engine 4500. Please do something about this.

The contact owns a 2015 GMC Terrain. The contact stated while driving approximately 30 MPH, the vehicle started jerking, lost motive power, and stalled. There was no warning light illuminated. The vehicle was restarted, and the contact continued to drive; however, the failure persisted. The contact stated that the “Engine Power Reduced” message was displayed. The vehicle was towed to the local dealer where it was diagnosed that the timing chain had fractured. The vehicle was not repaired. The manufacturer was contacted and informed of the failure but provided no additional assistance. The approximate failure mileage was 120,000.

Stopped at Kwik Trip to get coffee before work one morning. Restarted Terrain and while leaving the SUV lost power and went into limp mode in heavy traffic. Car was towed to repair facility. Diagnosed as timing chain and guides failed resulting in major engine damage. Bill was $4302.85. Vehicle had 87397 miles on it.

Engine died in the middle of the freeway when driving, creating hazardous condition. It was later found out there was no oil. Oil was changed less than 2000 miles prior by GM dealer, there was no leak on the garage floor and there was no warning that oil was low and the exhaust did not look any different. There was no way to tell the engine was burning oil. The engine had barely 110k miles.

The engine is burning oil at a rate of about a quart every 2k miles. The check engine light came on recently and very shortly after a reduced power warning came on and made the vehicle difficult to drive. Which was not safe on a major road. It had to be towed to my mechanic and he mentioned to me that the engines in this vehicle are known to be problems. The pistons have an issue that burns oil in excess he said. I looked this up and found a class action settlement was just awarded to people in 3 states. However not mine.