1998 Ford Ranger had the door ajar switch replaced 3 or 4 times in as many years. The door ajar is linked to the dome light. If the door ajar switches become corrupted or malfunction, the dome light goes on and stays on. The poses a safety hazard if it happens at night because there is no way to turn the dome light off while driving even though the doors are firmly closed and locked. The glare from the dome lights make driving nearly impossible, and could cause a serious accident if it occurs while driving at night with no repair facility close by.

- El Paso, TX, USA

Door ajar light remains on and the vehicle thinks the door is open even though it is latched securely.

- Honesdale, PA, USA

I had to replace all four door jam switches due to switches getting gummed up and failing. Also latches on the bottom of the rear doors where the switch is mounted had alot of corosion on them.

- Morgantown, KY, USA

My door ajar light and dome light stay on after you get in and out of the passenger side door. From postings, this is a very common Ford problem that they ignore. Driving forward (reverse won't do it) will reset the light most of the time and make them go out. Sometimes you have to pull the fuse. Wd-40 seems to be a short term fix but the real problem is the door switch jams.

- Dover, NJ, USA

Interior light will stay on even w/all doors closed, door ajar light shows on dash, did hear popping noise from under dash, when lights did go off after 10 minutes of driving, parked vehicle in P-lot at work with light still on, went to check an hour later the light was off, seems to happen randomly.

- Crawfordsville, IN, USA