Interior lighting stays on - 2004 Cadillac Deville

First check your dimmer switch to make sure that you do not have it turned all the way up where it clicks.This is how you turn on your interiors lights in many cars.Second,Make sure there is nothing jamming your doors open,even slightly, and making your interior lights stay on.Third,if none of these are the culprit,check your doors switch inside the jamb where your door swivels out.It may be broken or not operating properly.Check the wiring that is insid the jamb.Many times when and if there is a rubber cover between the jamb and the door,the wiring can break and cause a short.Which in turn grounds out and may cause your lights to stay on or not at all.Hope this helps some;)