TL* THE CONTACT RENTED A 2015 KIA SORENTO. WHILE DRIVING AT APPROXIMATELY 35 MPH OVER RAILROAD TRACKS, THE STEERING WHEEL SEIZED AND EXCESSIVE FORCE WAS REQUIRED. THE CONTACT ALSO STATED THAT THE VEHICLE INDEPENDENTLY ACCELERATED WITHOUT WARNING. THE FAILURE CAUSED THE VEHICLE TO CRASH INTO THE POST OF A BILLBOARD. THE AIR BAGS FAILED TO DEPLOY. THE CONTACT SUSTAINED A VERTEBRAE, NECK, AND BACK INJURIES AND HEAD TRAUMAS THAT REQUIRED MEDICAL ATTENTION. A POLICE REPORT WAS FILED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 17,000.....UPDATED 06/21/17 *BF UPDATED 9/11/2017*CN