TL* THE CONTACT OWNS A 2011 HYUNDAI SONATA. THE CONTACT STATED THAT WHILE DRIVING AT 40 MPH, THE VEHICLE STALLED WITHOUT WARNING. THE CONTACT STATED THAT SMOKE BEGAN TO FILL THE CABIN OF THE VEHICLE, BUT SUDDENLY STOPPED. THE VEHICLE WAS TOWED TO THE DEALER WHERE IT WAS DIAGNOSED THAT THE ENGINE NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE VEHICLE WAS INCLUDED IN NHTSA CAMPAIGN NUMBER: 15V568000 (ENGINE).THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 48,000.