NHTSA Complaint #10296821 — 2007 TOYOTA TUNDRA

I OWN A 2007 TOYOTA TUNDRA - 4X4. SEVERAL TIMES I NOTICED THAT IT HAD MOVED FROM WHERE I PARKED IT. IT HAD MOVED FROM THE SPOT THAT I HAD PLACED IT AND ROLLED BACKWARDS, DOWN A FAIRLY STEEP GRADE, A DISTANCE OF AROUND 20 FEET. I TRIED SEVERAL TIMES TO REPLICATE THE INCIDENT AND DISCOVERED THE FOLLOWING: WHEN PARKED ON A HILL WITHOUT THE PARKING BRAKE ENGAGED THE TRANSMISSION WOULD NOT "LOCK" IN PARK WHILE THE TRUCK WAS IN 2 WHEEL DRIVE. THIS CONDITION CAN BE REPLICATED ONLY WHEN THE TRUCK IS PLACED INTO PARK IMMEDIATELY AFTER HAVING THE ANTI SKID (TRACTION CONTROL) RESPOND TO A SLIPPERY CONDITION. THE PROBLEM DOES NOT OCCUR WHEN THE TRUCK IS PLACED INTO 4 WHEEL DRIVE. THE PROBLEM ALSO DOES NOT OCCUR IF THE AUTOMATED ANTI SKID RESPONSE DOES NOT ACTIVATE ITSELF. THE ROLLING DOES NOT ALWAYS BEGIN IMMEDIATELY. I HAVE NOT YET TRIED TO GET THE SAME RESPONSES WHILE BACKING THE TRUCK UP THE HILL IN REVERSE. I REPORTED THIS TO THE LOCAL TOYOTA DEALER IN WARREN, OHIO ON TUESDAY, DECEMBER 22, 2009. I AM VERY CONCERNED THAT THIS CONDITION MAY CAUSE SERIOUS INJURY OR DEATH TO ANYONE WHO MAY FIND THEMSELVES BEHIND THE VEHICLE WHEN IT BEGINS TO ROLL. *TR