check your ground wires...they might be loose or detached.
Bad dash ground.
The two items commonly share a power fuse.
There are several things that can cause your 2000 Cadillac dashboard lights to quit working. The most common cause is a blown fuse.
Check bulbs Fuse Stop light switch
you have a shorting wire someplace
with any electical problems the first thing you should check is the fuse
It could also be the dash light switch. Did you check the fuse panel under the hood?
could be several reasons, dash light dimmer switch is turned off or bad, bulbs are blown out or fuse is blown out.
Replace the light sensor, it is under dash, 22$ at auto zone, my head lights quit working at night, but brake ligjts & fog lights still worked
you probably need to change your fuses you probably need to change your fuses
If the fiber optic lights on your Christmas tree go stop working, it can mean the light unit is bad. Other reasons the lights may quit working are that a bulb is loose or bad or the plugs are not connected securely.