The brake light switch is out of alligment. Check on the brake pedal arm and readjust the switch.
Take it to a mechanic or fix it yourself.
usually they will leak out the back by the booster, your brake pedal will slowly go to the floor at stops or the brake pedal will go right to the floor when pushed.
need brake fluid - check for leak in braks lines
Check the brake switch up under the dash on the brake pedal. Lie on the drivers floor, look up and then push the brake pedal with yoru hand and see if there is any kind of electrical connector that actuates the brake lights when you push the pedal in.
It could be one of serveral things. - Low brake fluid. - Parking brake is on or slightly on. - If the brake pedal has been pushed all the way to the floor. Check the fluid and parking brake first then go to plan B.
In the floor cover behind the drivers seat (turn the knob on the cover & lift it out) you'll see some inline fuse holders in the wiring harness........... one of them is the trailer brake lights Good Luck !!!
Sounds like the brake light switch is broken. It is located above the brake pedal, replace it with a new one. Your local auto parts store will have that part.
brake light switch, may be located above the brake pedal where it mounts under the dash, did you find any parts laying on the floor ? No I did not
My Accent would not shift out of park. I checked the brake lights and they did not work. I checked the brake light fuse, which is behind the plastic panel left of the brake. It was good. I lay down on the driver's side floor board and looked up at the brake lever and found the brake light switch, which has a skinny white spring-actuated plastic plunger inside that extends when the brake pedal is pushed. It was not extending, so I removed it from the switch by pulling on the black rubber cover on back of switch. When, removed, it looks like a pen when you remove the inside and see the spring around the ink shaft. I sprayed a little Teflon lubricant on the tiny plunger at the end of spring. I replaced the plunger in the switch and pushed the black rubber rectangular piece back in. Brake lights work and so does the shifter. Total time spent was about 20 minutes. If it fails again, I will replace the brake light switch for less than $10.
I would guess the headlight dimmer switch on the floor board is bad or has a loose wire. Possibly the head light switch is bad. The headlight switch has a separate circuit breaker for just the head lights.
first check uour fuses in the right front floor column. then the break switch on the break peddle,
Get down on the floor board and look up at the brake pedal arm. You will see a switch that the arm hits when no pressure is applied to the brake. Twist the switch and adjust so when you barely touch the pedal the brake lights come on.
most likely your brakelight switch is not adjusted correctly.