The contact owned a 2008 GMC Acadia. The contact stated that while driving at 65 MPH, a grayish-colored smoke as well as an abnormal sound emit from the engine without warning. The contact pulled over and exited the vehicle as the vehicle was quickly engulfed in flames. The contact called the fire department and they extinguished the fire. A fire report was filed(#23-046145) and no injuries were reported. The contact stated that the highway barrier was damaged as a result of the fire. The vehicle was then towed to an independent mechanic where it remained in their possession. The dealer nor the manufacturer had yet to be notified of the failure. The vehicle was deemed a total loss. The failure mileage was approximately 200,000.