My DOOR AJAR light comes on when the truck is torqued a little more than normal. This just began happening a few weeks ago. I know there's a lot of problems with the light staying on and thus the dome light being on. This does not happen with mine. My problem is not a big deal, it just dings and lights up when my truck is torqued a little. But it happens when making minor, easy turns on a slanted surface, which should not be normal. Is it possible to tighten the door locks on the two rear suicide doors?...mine seem loose, but they have always seemed loose. As I said, it's no large problem, but I was wondering what could be done if anything. Would strengthening the frame help? I "use" my truck when I do use it so i'm sure some parts are/were being overstressed.

 

As you do with the dome light staying on fix, just spray WD40 onto your latches and see if it helps when your torqued...

If not, then it may be completly different problem...

 

I found the problem. The rear suicide doors have a lock mechanism on both the top and bottom of the door. I took off the door panel of the drivers side to diagnose the problem. I found out that the bottom lock does not work...it doesn't stay shut, which lets the door open a decent bit, and enough to move the lock on the front door thus making the ajar light come on. I'll have to replace the latch on the bottom. Where can I get one? Autozone does not carry em. I guess junkyard, but I hate to have to go rip one out. Dealer probably wants too much.