Most likely in the fuse box under the steering wheel above the pedals.
Check your fuses.
I have a 1991 Chevy surburan and it has no tail lights and no dash lights, all fuses are good
check your fuses?
Fuses?
94 mercury grand marque dashboard, hazard, and tail lights do not work?
There are no extra fuses for your trailer lights. If you have the towing package (and you do) the trailer lights run through your regular fuses (tail, brake, turn).
check the fuses
on ground or no power,check fuses.
Check the fuses first then check the bulbs.
Check fuses, common circuit
check fuses
check your fuses