There could be many reasons, and you should take it to a mechanic to check it out.
Most likely the reverse lights were attached to the light bar.
Select reverse gear.
"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.
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.
Type your answer here... HOOK IT BACK UP!
YOU NEED A NEW TRANMISSION IF IT WON'T GO IN REVERSE.
A person driving in reverse is always at fault.
The year, make and model info would help.
The proper way to parallel park is to drive up a space parallel to the car and then back up and turn at the same time. Then, reverse the steering when the car is back up half of the way.
your transmission is burned out, the 1st and reverse clutches are worn out
Take it back to the shop and complain.
My reverse wiring back up wiring is located on the drivers side kick panel.