you're wiring might not be grounded right, then you might have a short in the wires
have you checked your fuses?
Check the bulbs - they are doubloe filamented with the smaller being for brake/turn signals Check the fuses
The most likely cause is a bad brake light switch (if none of the brake lights illuminate) but if its only one of the brake lights, try changing the bulb. Even if they still work as running or turn lights because they have a double filament and may still work partially, but not as brake lights.
A defective brake light switch could cause the problem. Also a defective turn signal switch could also. The brake lights work through the turn signals. It cancels the brake light so that the turn signal can work.
You probably need to replace your brake light switch. It's near the top of the brake assembly, beyond a trim panel. The fact that all three brake lights don't work rules out problems in the multifunction switch (the cause of similar problems affecting only the two rear lights.)
It is your multifunction switch that has gone out. It is located in the steering column. I used my emergency lights and it blew out brake lights, turn signals, and emergency lights. In newer models Chevy did a recall not so for our older models. Mine is a 1995.
No , the rear brake lights do not turn on when you use your parking brake , just the brake light on your dash is supposed to come on
are you sure it is the brake lights and not the tail lights. if it is the brake lights you most likely have a short some where. go to a auto eletrican It is the brake lights which turn on. Short in the switch or the wiring?
The turn signal wiring goes up the steering column. Turn signal bulbs are also used as brake lights and the brake light signal goes through the turn signal switch. If there is a loose connection or worn wire in the steering column, the tilt would cause problems.
A loose or corroded ground wire will cause the fuse to blow. Check the ground wires on your brake lights.
I have run into the same thing with this kind of car. On the steering column at the top they have a switch that will turn the running lights on or turn them off. check the switch you may have hit it and turn it on.
change the fuse if not replace flasher