Brake lights stay on all the time

No high mount brake light switch? Sure it's the tail lights and not the brake lights? If the brake light switch is out of adjustment, it'll keep the brake lights on full time. The switch is under the dash and touched the pedal arm

It is located above the brake pedal shaft you will see a switch that touches the shaft. Just unplug the wire to it and unscrew it. Screw the new one in until the switch pin that touches the shaft is retracted half way into the switch. Start the car and push the brake pedal down 1/2" the brake lights should come on if not unscrew the switch until they do.

Are you talking about the brake lights in the back, or the brake warning light on the dash ?
If the warning light is on, have you checked the fluid level in the master cylinder ? Is the parking brake on ?

Hi, the usual cause of this is a broken stop light switch above the brake pedal. Look up there to see if the switch is broken. If it looks OK, pull the connector off the switch to see if the lights will go out. If they do, the switch is shorted. Occasionally the problem is in the turn signal switch, but this is very rare.

I assume you are pressing firmly on the brake pedal. If so, it is most likely the brake safety switch, not detecting that you are.
Contact your dealer about the override for this, (usually there is a button somewhere), if that fixes it, you need to get it replaced.
All new cars require that you press the brake to be able to shift out of park; this prevents the so-called "sudden acceleration" problem, when you put your foot on the accelerator instead of the brake, shift into drive, and then no matter how hard you press on the accelerator (which you *think* is the brake), the car will not stop, in fact it "races out of control".

But occasionally this switch goes bad and has to be replaced.

Try pulling back on the brake pedal if lights go off then either switch adjustment or the brake booster is allowing the pedal to drop down if it's running (vacuum) or brake pedal mechanism is binding.

possible culprits, neutral safety switch or brake pedal switch. likely culprit is the pedal switch. it is located on the brake pedal 2 inches above the pedal foot pad

sounds like you have low brake fluid pressure and the pressure sensor is turning on warning lights saying there is low pressure and also pedal going to floor indicate this, sounds like master brake cylinder is worn out/broke and needs replace ment

if it is the one on the dash then you need to replace the brakes on the back

I know this is outdated but for those with this problem which i had too, it is a rubber stopper that attaches to the brake pedel itself to keep the switch depressed on my car for there is 2 switches and there is 2 rubber stops attached to the brake pedal. this being gone will cause the brake lights to stay on all the time.