How do I stop the door ajar sound from randomly going off while driving down the road in my 2003 Ford explorer?

SOURCE: 2003 Explorer door ajar light stay on when all doors are closed

I had this problem on my 2003 explorer and took WD40 and gave the lock mechanism a good dose where it meets the clasp on the door jam. Then open and close the doors a couple of times to get them working. They get gummed up and sometimes have a tendency to stick.

SOURCE: 1998 Ford Explorer blinker problems

Have you checked the contacts to make sure they have good contact with the bulb base? I have a 1995 Ford Contour. The turn signal went out. I replaced the bulb and it would work when it wanted to. I checked the contacts and sure enough they weren't making good contact with the bulb. I took a screwdiver and slightly bent the contacts a little. It has worked good ever since.

Marvin

• 85242 Answers
• Posted on Apr 09, 2009

SOURCE: 2002 Ford Explorer The door ajar alarm will go off

this problem is caused by the door ajar switches inside the door that are attached to the door latch sticking, there are 1 for each door and 2 in the tailgate, the only simple way to fix this is to have ford do a scan of the system an ID which of the switches is sticking, otherwise you must de-trim/remove door panel on every door and the tailgate until u ID the defective one, and it could be more than one.

SOURCE: my door ajar light stays illuminated when I drive

check the rear window latch my expedition did the same

SOURCE: i have a 2003 ford explorer and the door ajar

I had the same problem on my '02 explorer - I sprayed WD40 in all the door latches and the light has stayed off for three months now! Just something simple to try before you get around to replacing switches...