TL*THE CONTACT OWNS A 2007 CHEVROLET COBALT. WHILE DRIVING APPROXIMATELY 35 MPH ON A SNOWY ROAD, THE VEHICLE DROVE ACROSS A PATCH OF SLUSH. THE CONTACT LOST CONTROL AND THE VEHICLE WENT AIRBORNE. THE VEHICLE STRUCK A GUARDRAIL, AND THEN DROPPED APPROXIMATELY FOUR FEET FROM THE INTERSTATE TO THE OFF RAMP. THE CONTACT WAS INJURED AND THE VEHICLE SUSTAINED MINOR DAMAGE. A POLICE REPORT WAS FILED. SHE SHUT OFF THE VEHICLE AND REMOVED THE KEY FROM THE IGNITION. APPROXIMATELY 30 MINUTES LATER, THE VEHICLE STARTED ON ITS OWN. THE VEHICLE WAS TAKEN TO A DEALER TWICE, BUT THEY COULD NOT DETERMINE HOW THE VEHICLE COULD START AND SHUT OFF WITHOUT A KEY IN THE IGNITION. THE CURRENT MILEAGE WAS 19,084 AND FAILURE MILEAGE WAS 18,315.