Check to stop light switch - usually located at the upper end of the brake pedal under dash area
Start small. Check your fuses.
I don't know, but go ask a mechanic
check the fuse
You have to be more specific. What is not working?
Low beams are burned out.
Try replacing the turn signal flasher
The dim lights on a 1994 Grand Prix could go out when the headlamp switch is on if there is a short in the wiring for the headlights. There could also be a problem with the bulbs themselves if they were touched during installation. The oils in the fingers can short out new headlights.
the reverse switch in the transmission
this sounds like a fuse or 2. that's where i would start.
i dont think you can but my dad has a 98 grand am gt with that (they've had that since 96) and it stopped working and now you have to turn the lights on manually..
More likely the problem is with the reostat on the sending unit,(in the tank).
If parking and dash lights work: Maybe bad bulbs (double filamented) Bad socket? Bad ground circuit?