TL* THE CONTACT OWNS A 2010 FORD MUSTANG. THE CONTACT STATED THAT THE PARKING BRAKE FAILED. THE VEHICLE WAS TAKEN TO A DEALER WHERE IT WAS DIAGNOSED THAT AN UNKNOWN PART NEEDED TO BE REPAIRED. THE VEHICLE WAS REPAIRED. THE DETAILS OF THE REPAIRS WERE UNKNOWN. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 25,000. UPDATED 09/09/15*LJ THE CONSUMER STATED THE VEHICLE BEGAN ROLLING BACKWARDS AFTER IT WAS PUT IN PARK AND THE PARKING BRAKE WAS SET. THE VEHICLE CRASHED INTO ANOTHER VEHICLE. UPDATED 12/11/2015*JS