I am having huge problems with the keyless entry not working on my car. It's out of warranty and it bought it used from a dealership. I don't know how to fix this since even when I get in my car, the lock button won't work for the passenger doors. At first it was just the drivers door having issues. Now that's working for some reason but the passenger doors either remain locked or unlocked if I unlocked them to begin with. I have to constantly check all my doors before I walk away from my car to make sure they are all locked. The keyless entry will unlock the drivers door and trunk, but nothing else. This is a huge pain in the behind when I'm carrying things and can't unlock the back door without putting everything on the drivers seat and reach in the back to unlock the door. HELP!!!!!!!