MY WIFE WAS SITTING IN THE DRIVER SEAT OF THE VAN. THE VAN WAS PARKED. HER LEG MADE CONTACT WITH THE POWER SEAT CONTROL MOVING THE SEAT FORWARD AND TRAPPING HER IN THE VEHICLE WITH HER KNEE STUCK UNDER THE DASHBOARD. THE SEAT WOULD NOT RETURN TO IT'S ORIGINAL POSITION AND THERE IS NO RELEASE MECHANISM OTHER THAN THE POWER CONTROL KNOB. THE SEAT WAS INSTALLED BY MARK III CONVERSION VANS AND SOLD AS NEW BY THE D & C CHEVROLET GM DEALER. *AK