The license plate lights are not in a separate fuce by it seft. They are the same as your side marker lights. So, check if your side marker lights are working and if they are them is a bad license plate light bulb.
Check the park lamp fuse.
Right next to the drivers side front marker light, in the headlight area.
Same fuse as the tail light circuit.
What about them?
No
It shouldn't have, or need, its own fuse. It should share a fuse with the marker lights <sometimes referred to as 'Park(ing) lights'>.
The 1995 Pontiac Grand Am has reflectors on the sides that may look like side marker lights, but they are only reflectors. The tail lights and front parking lights are so positioned that they can be viewed from the sides, so separate side marker lights are unnecessary.
tail light/marker light fuse see if your tail lights are working if they are you have problem in cluster most likely.
By "exterior" lights I am forced to assume that your mean the tail lights, brake lights, license plate lights, and if available, the side marker and clearance lamps. When a trailer light wiring harness is attached to a towing vehicle's electrical system, it is generally tied into the tail/brake/license light wiring harness. If that is the case with your setup, then the same fuses that serve the vehicles light system[s] also serves the towed vehicles lights. Usually, one fuse serves the brake lights, and another serves the tail, license, side marker, and clearance lights.
Illegal color of side marker lights. If present, must be yellow in the front and red in the rear (25106, 24003 VC).
near side lights not working