2015 GMC Terrain power train problems

“There have been problems with the 2015 GMC Terrains Timing chain. The timing chain will break when the vehicle is being operated which causes the driver to lose complete control of the SUV, additionally, the engine will be destroyed. The bigger issue is the loss of control when you are driving - especially at highway speeds. GMC had hundreds of complaints but refused to issue a recall. A recall was issued but for only certain batches of VINs. I contacted GMC corporate service to inquire about what they are doing for the other owners who are experiencing the symptoms before the chain breaks. The representative told me they were only recalling certain VINS, I explained that it was not a fluke that my car was experiencing the same issues as the recalled ones. The response was they weren't recalling my VIN. I inquired why there were only some, not all, and she said it depends on what time of day the car was assembled the weather, and the place. Just bizarre this answer, my vehicle is the exact vehicle model that is being recalled and is experiencing the same problem - it makes no sense. So if I am driving on the highway or any road USA and my chain breaks I may…”

“The blower fan for heat In my vehicle was replaced in October 2022, recently the Defroster will not engage and it is vital to winter driving. The mechanism that switches between which vent to blow out air was replaced and the Defroster will still not engage, rather it comes out of the heat and face vents. Shortly after the Defroster stopped engaging, the rpms will start fluctuating from 2 suddenly up to 6-8 without warning or acceleration then go back down and back up as if it's chugging along. Even when applying the brakes, this will continue to happen and there's concern for Rear-ending or crashing when this happens. When driving home 2 nights ago the county police pulled my vehicle over due to burnt out headlight, which was replaced less than 6 months ago. Took the car in to get bulb replaced today and multiple bulbs later, the light is not fixed and it was said to be electrical and need to go to another shop. Beginning to wonder if this is all a bigger problem about to happen with engine/ powertrain.. with commute to work in the dark and electrical problem in the headlight randomly and the acceleration issues there is definitely a concern for safety.”

“The timing belt on the GMC Terrains from 2013 to 2015, mostly 2015 are breaking at a unusual amount. If you google it , there is story after story about this problem and GMC has not done anything. This appears to be a problem with the Terrain and I want them to issue a recall before mine breaks. It is expensive to fix and it can also be a huge problem if it breaks when you are driving. Something has to be done as this is not a coincidence that this is occurring to a large amount of Terrains.”

“My GMC terrian has 98567 miles and had check engine light problem. Dealer said that I needed new timing chain. Cost $2282.05. Have not found a recall on the timing chain problem, but have seen many complains about the same issue. With some being replaced multiple times. Why has GMC not done anything to cure this problem. Van does not burn oil. Have it serviced at the GMC dealer since I purchased it with only 16000 miles.”

“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”

“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.”