I have a 2003 Tahoe. The interior lights do not come on when door is open.They do come on when you move dial switch all the way up.Or when you switch them on near light itself. Where would the prob. be....
Since they "do" work with the dial and the switch on the light, I'd check the plunger mounted on the side of the dash that the door releases when you open the door. (If it's not on the side of the dash like my 99, it's on the front door jamb and will be a metal plunger.) Mine is plastic and on the side of the dash. You can push it in and out with your fingers. A small screwdriver will pry it out of the dash if it's the plastic one. Replacements are cheap and can be picked up from local auto parts stores. If you want to test it before buying a new one, pop it out, disconnect the wires, then use a multi meter or test light on the leads coming out of the dash. If there is power there, it's most likey the switch. I've also seen it where the switch is just stuck pushed in and doesn't pop out when you open the door. Check yours with the door open. It should be "out". If not, wiggle/push/flick it and see if it pops out and the light comes on.
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