The contacted owns a 2013 Hyundai Sonata. The contact stated that while driving the vehicle deaccelerated without warning several times. The contact stated that the failure was occurring for about a week and the vehicle was not taken to a dealer or independent mechanic for diagnoses or repairs. The contact stated recently while driving at 70 mph the vehicle was decelerating with the check engine warning light illuminated, pulled over to the side of the roadway, and called for a ride. The contact stated smoke was seen coming from under the hood she opened the hood but saw no fire. The contact stated left the vehicle parked on the side of the road and was notified by the police that the vehicle had caught on fire. The contact stated that the fire was extinguished by the fire department. The contact stated that a police report was filed. The contact vehicle was awaiting a tow to the unknown Hyundai dealer. The contact stated that the manufacturer was not notified of the failure. The approximate failure mileage was 130,000.