TL* THE CONTACT OWNS A 2012 KIA OPTIMA. WHILE DRIVING 55 MPH, THE ENGINE STALLED AND THE VEHICLE SHOOK FROM SIDE TO SIDE. THE CONTACT WAS ABLE TO PULL THE VEHICLE OVER TO THE SHOULDER AS SMOKE APPEARED FROM THE ENGINE. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE VEHICLE WOULD NOT RESTART AND WAS TOWED HOME. THE DEALER AND MANUFACTURER WERE NOT CONTACTED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE FAILURE MILEAGE WAS 172,000. THE VIN WAS UNKNOWN.