TL* THE CONTACT OWNS A 2013 HYUNDAI ELANTRA. WHILE DRIVING 15 MPH, THE VEHICLE BEGAN TO SMOKE PROFUSELY WHILE THE ACCELERATOR PEDAL WAS BEING DEPRESSED. THE FAILURE WAS PERSISTENT. THE VEHICLE WAS TAKEN TO A LOCAL DEALER (ADVANTAGE HYUNDAI, 440 PLAINVIEW ROAD, HICKSVILLE, NY 11801) WHERE THE CAUSE OF THE FAILURE COULD NOT BE DETERMINED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED AND REFERRED THE CONTACT TO NHTSA. THE FAILURE MILEAGE WAS APPROXIMATELY 20,000.