TL*THE CONTACT OWNS A 2005 CHEVROLET COBALT. WHILE THE CONTACT WAS DRIVING APPROXIMATELY 55 MPH, THE STEERING WHEEL JERKED IN A LEFT AND RIGHT MOTION. THE VEHICLE LOSS CONTROL AND CRASHED INTO A GUARD RAIL. THERE WAS NO INJURY. THE POLICE WAS NOT CALLED TO THE SCENE. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER FOR INSPECTION. THE TECHNICIAN WAS UNABLE TO DUPLICATE THE FAILURE. THE CURRENT AND FAILURE MILEAGES WERE 2,500.