TL* THE CONTACT OWNS A 2010 TOYOTA PRIUS. THE CONTACT STATED WHILE THE VEHICLE WAS PARKED IN HER DRIVEWAY, THE VEHICLE INDEPENDENTLY ROLLED BACKWARDS OUT OF THE DRIVEWAY. AS A RESULT, THE REAR END OF THE VEHICLE RAN INTO A TREE. THE AIR BAGS FAILED TO DEPLOY. A POLICE REPORT WAS NOT FILED.THERE WERE NO INJURIES SUSTAINED. THE VEHICLE WAS ABLE TO DRIVE AND WAS TAKEN TO A COLLISION CENTER. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED AS OF YET. A DEALER WAS NOT CONTACTED. THE MANUFACTURER HAD NOT BEEN INFORMED OF FAILURE. THE FAILURE MILEAGE WAS 173,991. THE VIN WAS NOT AVAILABLE.*DT