DRIVERS SEAT HEATER STAYED ON AFTER CAR KEY WAS TURNED OFF. IT CONTINUED TO STAY ON AFTER I GOT OFF AND WENT SHOPPING..THE WHOLE DRIVERS SEAT BURNT A BIG HOLE. BURNED ALL THE WAY TO THE BOTTOM AND BURNED THE CARPET AND PART OF THE DOOR PANEL. SMOKED THE WHOLE CAR .APPRAISER .SAID IT WAS A SHORT.IN BACK PART OF HEATING WIRING IN BACK OF SEAT. THAT STAYED ON. *TR