this happened to me on my 98 Honda accord and it was because my brake lights and sinal lights were not working properlyMost likely, the brake light switch is stuck.
Have you checked your brake fluid level? You could be dangerously low.
If you mean that your exterior brake lights stay on even when you aren't pressing on the brake pedal, you most likely have a bad brake light switch.
If you follow your brake pedal arm up under the dash, you should see a switch that comes in contact with the arm. It might have been knocked out of position and all you need to do is put it back. If it is in its correct position, it is probably bad and will need to be replaced.
It works like this...when you press on the brake pedal, the arm moves away from the switch, thus turning on your brake lights. When you release your foot from the brake pedal, it contacts the switch and your brake lights turn off.
Check the switch on the brake pedal
brake light switch would be most common cause
Possible ground issue at the taillights.
BAD BRAKE LIGHT SWITCH AT TOP OF BRAKE PEDAL
The BOO (Brake On/Off) Switch may need to be replaced. If it is bad, it would cause the brake lights to NOT illuminate when the brake pedal is applied.
More than likely it is the brake light switch that is attached to the brake pedal.
brake switch located on the top of the brake pedal
Check your brake light switch at hte brake pedal.
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.
Check the switch adjustment on the brake pedal arm.
Check the bulbs - they are doubloe filamented with the smaller being for brake/turn signals Check the fuses
Blown fuse, bulb, or bad brake light switch.
Check the bulbs, fuse & brake light switch on the pedal.
Check the fuses and if they are good then check the brake light switch.
the brake light switch is out of adjustment. Readjust the switch.
A broken or out of adjustment brake light switch.
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.)
There's a switch that the brake pedal engages when pressed that makes the brake lights go on. this switch may be stuck.Or the peddle staying on switch
a blown bulb or loose wire.
Check the brake switch located on your brake pedal shaft. May have to be replaced.
On the left hand side by your steering wheel theres a swtich with a light on it. Press it. I cannot tell by your question WHICH brake light you're talking about. If it is on the instrument panel, then I don't know. However, if you're talking about the brake lights on the rear of the vehicle staying on, then the cause is probably a misadjusted brake light SWITCH. Or the switch could be defective.
have you checked your fuses?
It is possible that a wheel speed sensor is bad. This will cause the anti lock braking to not read the wheel correctly which would be a brake problem that would cause a light.
brake switch ???