My center dome light doesn't ALWAYS come on I've sanded the terminal endings both inside and on the bulb the foot lights always come on so I assume fuse isn't bad although maybe I should check lol I even used bulb grease for no chance of rust and hope for better connection still a bit dodgy anyone else have this issue? I've taken it apart and all connections appear ok.

 

Theres probably a short in the wiring or the switch.

 

Mine has done this for years (upon unlocking doors.) Very intermittent, no solution in sight.