SOME CUSTOMERS MAY EXPERIENCE INOPERATIVE FRONT DOOR WINDOW AUTO-CLOSING OPERATION WHEN USING THE WINDOW SWITCHES (A). THE WINDOW MOVES UPWARD, BUT AUTOMATICALLY RETURNS TO THE HALFWAY POSITION (AS IF THE JAM-SAFE WINDOW FUNCTION IS OPERATING). THE GLASS RUN CHANNEL MAY BE DEFORMED CAUSING INCREASED SLIDING RESISTANCE AGAINST THE WINDOW GLASS. THIS MAY CAUSE THE SYSTEM TO MIS-JUDGE THAT SOMETHING IS BLOCKING THE WINDOW CLOSE MOVEMENT AND OPERATES THE JAM-SAFE WINDOW FUNCTION.