I HAVE A 2004 SIENNA. IT BEGAN MAKING A STRANGE NOISE WHEN I OPENED THE DRIVER'S SIDE REAR SLIDING POWER DOOR. THAT NIGHT, THE VAN WAS PARKED ON A DOWNWARD SLOPING HILL. AS MY DAUGHTER'S FRIEND WAS GETTING OUT, SUDDENLY THE DOOR SLAMMED SHUT. I PUT UP MY ARM TO STOP THE DOOR AND LUCKILY SHE JUMPED BACK IN TIME, BUT SHE WOULD HAVE BEEN REALLY HURT HAD SHE BEEN IN THE DOORWAY. I HAD A BRUISE ON MY ARM THAT MAY HAVE BEEN A BROKEN BONE ON THE CHILD. LOOKING CLOSER, I REALIZED THAT THE CABLE CONNECTED TO THE DOOR HAD SNAPPED AND WAS HANGING OUTSIDE THE VAN. I HAD NEVER HEARD OF THIS PROBLEM BEFORE, AND AM SURPRISED GIVEN THAT THE VAN IS ONLY FOUR YEARS OLD AND HAS LOW MILEAGE. *TR