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On the back of a car there are tail lights, turn signals, and brake lights. Cars also have back up lights that tell people when the car is in reverse.
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"Back up lights" are the same as reverse lights. Lights that "turn on" when vehicle is put into reverse gear to illuminate the rear of the car so you can see when backing up.
Most likely the reverse lights were attached to the light bar.
Never known of a car to have fog lights in rear , only reverse lights
BLK/PNK
Have you checked all the lights? Reverse lights, tail lights and brake lights?
The reverse lights automatically come on as you put the car into reverse , if they are not coming on your most likely problem is the fuse or bulbs
To let others know that you are breaking.