light on dash that tells door is not closed stays on on 2003 Ford F-350 Super Duty

little red car with doors open in center of dash display

2 answers 1 comment
the first thing to try is to give each door latch a spray of wd-40,then open and shut the door several times.The door ajar switch is mounted in the latch and gets full of dirt and will stick.Usually works and is cheaper than replacing.
Agree, that works at our shop most of the time!
poss bad door ajar switch located in door latch assm