Check the fuses first. If the fuses are ok check the reverse switch. The switch is under the dash on some models, and on the transmission on others. A bad or misaligned switch is the most likely cause for no back up lights.
Have you checked all the lights? Reverse lights, tail lights and brake lights?
Defective or out of adjustment brake light switch. Look somewhere on the upper part of the brake pedal for the switch.
check brake fluid
Bad bulbs or brake light switch.
Check and see if you have brake lights - If there are no brake lights then your shifter release solenoid will not release the shifter, it will be stuck in park. If this has happened then please check the wiring on the brake light switch which is located on the brake pedal. You will probably find a broken wire.
Brake lights and tail lights. (Unless you have a spotter telling you of course)
Could be the brake light switch or fuse.
I tried all the fuses, the parts that under the brakes I checked that. All lights come on and working except the brake lights no break lights.
It needs checked out but both the hazard and brake lights go through the turn signal switch.
burnt out lightbulb!
It sounds as if you have an electrical problem that needs to be checked. You may even have the wrong fuse for your brake lights.
Have you checked the fuses?