The contact owns a 2013 Hyundai Sonata. The contact stated that while driving at 30 - 35 mph, the vehicle stalled while going up a hill. The contact was able to use the emergency brakes to pull over into a ditch, in order to stop the vehicle. No warning lights were illuminated. There was dark gray smoke coming from the engine and a burnt odor was detected when the contact opened the hood. The vehicle was towed to the contact's residence. The vehicle was not diagnosed nor repaired by an independent mechanic or dealer. The manufacturer was made aware of the failure and opened a case and informed the contact that they would send her case over to NHTSA. The contact was waiting on instructions from the manufacturer on what to do with the vehicle. The failure mileage was approximately 117,000.