TL* THE CONTACT OWNS A 2005 TOYOTA SIENNA. THE CONTACT STATED THAT THE WHILE THE VEHICLE WAS PARKED BUT UNSURE IF THE EMERGENCY PARKING BRAKE WAS ENGAGED, THE VEHICLE STATED ROLLING DOWN HER DRIVEWAY WHICH HAD A SMALL INCLINE. THE CONTACT STATED THAT HER 4 YEAR OLD CHILD STATED, "THAT HE SHIFTED THE GEAR SHIFT" AND THE VEHICLE STARTED ROLLING BACKWARDS. THE CONTACT STATED THAT THE KEY WAS NOT IN THE IGNITION AND NO WARNING LIGHTS WERE ILLUMINATED. THE CONTACT STATED THAT SHE ATTEMPTED TO DEPRESS THE EMERGENCY BRAKE PEDAL WHILE SLOWLY RUNNING WITH THE VEHICLE BUT FAILED TO STOP THE VEHICLE. THE CONTACT STATED WAS ABLE TO TURN THE STEERING WHEEL TO THE LEFT HITTING TWO BOULDERS AND A FENCE, THEN COMING TO A STOP. THE CONTACT STATED SUSTAINED BRUISING TO HER LEGS AND BACK INJURIES WHICH REQUIRED MEDICAL ATTENTION 3 DAYS LATER. A POLICE REPORT WAS NOT FILED. THE VEHICLE WAS DRIVEN BACK TO THE CONTACT'S HOME AND TOWED A WEEK LATER TO TOYOTA OF POWAY LOCATED AT 13631 POWAY RD, POWAY, CA 92064(858) 486-2900. THE CONTACT MENTIONED AFTER THE FAILURE, SHE RESEARCHED AND FOUND NHTSA CAMPAIGN NUMBER: 13V429000 (POWER TRAIN).THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND A CASE WAS OPENED AS WELL AS A TOYOTA FIELD TECHNICAL SPECIALIST WAS SENT TO THE DEALER TO DETERMINE THE FAILURE. THE CONTACT STATED THAT SHE WAS INFORMED BY THE MANUFACTURER THAT "NO ABNORMALITIES WERE FOUND WITH THE GEAR LEVER AND SHIFT CABLE". THE FAILURE MILEAGE WAS APPROXIMATELY 250,000.