2013 GMC TerrainRecalls, problems, MPG & safety

“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…”

“My 2013 engine blew out, I did an oil change around February and a month later took my vehicle to aamco and they found a gallon of coolant in the engine. None of the warning lights came on prior to this happening at all whatsoever. The oil life was still at 32% with no oil in my engine. All 3 of my windshield wipers as well rotted within the year that I purchased the vehicle. Now I do not have a working vehicle at all whatsoever due to the engine and car not wanting to start. When I put the code reader in when it first happened it told me it was the camshaft sensor so I changed both sensors and all the spark plugs and even bought the crankshaft sensor and it was none of the above until later I found out it was the engine that blew. I have spent so much money on this vehicle it’s ridiculous.”

“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.”