2013 GMC Terrain engine problems

“The exhaust and emissions system appears to have failed or is malfunctioning, including the catalytic converter and potentially the exhaust manifold or upstream exhaust components. The engine and fuel/propulsion system are also affected, as evidenced by sputtering and drivability issues. The vehicle and affected components are available for inspection upon request. Exhaust and/or fuel fumes enter the passenger cabin, particularly when the heater or air conditioning is operating. This creates a risk of exposure to harmful exhaust gases, including potential carbon monoxide, which poses a serious health and safety risk to vehicle occupants. The vehicle also sputters and hesitates, which could lead to unsafe driving conditions, especially in traffic or at highway speeds. Yes. The issue has been confirmed through diagnostic trouble codes indicating catalytic converter efficiency failure. Despite replacement of spark plugs and sensors, the problem continues to recur, indicating an underlying exhaust or emissions system defect rather than routine maintenance. The vehicle has been inspected by service professionals for diagnostic purposes. The manufacturer has not…”

“Was driving my terrain and suddenly it started to shake and then check engine Light came on. Upon getting out I checked the dipstick and no oil was on dipstick. Start to put oil in and it's running out of the oil pan underneath the vehicle. Towed it home removed oil pan and engine parts laying shattered in bottom. Never got a low oil alert . Had codes misfire and knock sensor.”

“The contact owns a 2013 GMC Terrain. The contact stated that while coming to a complete stop or shifting into reverse, the vehicle lost automotive power. The check engine warning light was illuminated. In addition, the contact stated that the vehicle was shifted into park(P) to regain motive power. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 200,000.”

“My 2013 GMC Terrain suddenly began to jerk as I was heading to run an errand in town. I pulled my truck back in the drive way at [XXX] where it is parked now. I had a mechanic to come and tell me the engine will need to be replaced and an estimate of the cost to repair it. I could have been rear ended by another vehicle since this suddenly occurred with no prior warning which could result in my death. I have contacted GMC due to a recall on the engine. GMC is declining to honor my request repair my vehicle based on the estimate I provided.”

“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.”

“Oil consumption rate was too high, roughly 2qts every 1500miles. Caused timing chain to break. Second time with the oil consumption. First fix under 100k mile warranty checked off as recall. It was done before a recall came out. Paying for timing chain to get fixed but recommended a new engine. Prefer GMC to replace engine since it's an ongoing issue. 307373 miles strong and now this.”