Did you recently change or install something in your car like a stereo or GPS?
Which fuse works the backup lights, heater fan, and gas hand will depend on the make and model of the car. Each car manufacturer configures their fuses in different ways. One can consult the owners' manual of the car to find a fuse diagram.
Check the circuitry to the backup lights. The same fused circuit is probably used for both brake lights and backup lights. As you go past Reverse, the backup light probably is turned on briefly, causing the fuse to blow. It's just a thought, but I'd think it worth checking.
how do you replace backup lights on 99 grand am?
It doesn't have any. The only C2 (1963-1967) with backup lights is the '67.
In the middle of the light bar across the back. It is a single filament bulb 3156LL.
You have a short circuit between the backup light switch and ground. VWs are infamous for this because the power for the backup lights comes off the side of the ignition coil. When you stick the car in reverse, it grounds the coil and the engine dies.
Tail lights. Brake lights. Backup lights. Signal lights. License plate lights.
There are two backup lights next to the red tail lights.
replae backup light switch on transmission
Either the switch that turns the backup lights on is out of adjustment, or has failed in the on position.
intermitten problems are the worst to figure out i would first start by changing the bulbs then i would change the wiring harness. i know i had a car that when the tail lights were on the blinkers wouldn't work and it turned out to be a short in the harness.