For some reason on my 03 Expedition XLT, whenever my passenger side rear door is opened, my door ajar light will remain on, along with interior lights and the whole 9, when a door is normally opened... This is even more problematic when it is raining or has been wet outside for a couple days, the light really stays on... This problem has been going on for years and now it is just annoying!!! Does anyone else have this same problem?!?

 

I had this very same problem. My solution was to spray lubricant into every door lock, especially on the door your experiencing the problem. Good Luck