Check the dimmer switch
checked fuses, or checked for voltage to interior light socket?
Take old lights out. Put new lights in. Done. You have just changed the interior lights on a 97 Buick Regal!
Get a rock
It was the dimmer switch..
in the fuse box
quick fix on youtube.com with video
You have to get under the car and change it that way.
fuse relay wiring switch
try replacing the crank senser,.
Normally this would be wired into the Instrument Lights.
There are no lights. their just reflectors.
I have a 1992 regal and the flasher is under the glove-box behind a piece of black plastic,the switch is on the steering column,the lights are on the front and rear of the vehicle.