My brake lights are intermittent. It seems to be

Brake switch must be adjusted such that it is depressed with pedal up and released as soon as pedal is slightly depressed.

might be the brake pedal light sensor that is attched to the pedal ]
follow the brake pedal till its base and you should find it

I would replace the pedal switch..cheaper way to go

Check the brake light switch and the bulbs themselves. If the brake light is not working you cannot shift from park.

Pull on your parking lights to see if they come on in the back.If the parking lights work and you still don't have brake lights then I would try replacing the brake switch and check all of your fuses just to eliminate any question of it being a fuse.The brake switch is located under the dash attached to the brake pedal.Also check the bulbs to also eliminate them.it sounds like your brake switch is bad.

may have a bad brake lite switch, its located on bracket that holds brake pedal arm that you step on to stop car, look toward top of pedal you will see a switch that the pedal arm hits when its released, if you unplug that switch and lights go out then the brake light switch is your problem, replace it. hope this helps.

The break lite switch is located behind the break pedal and it probably doesn't replaced it is probably just stuck. Its fairly easy to get to .

It sounds like your brake light switch is out.  It's located on the brake pedal and is relatively easy and cheap to replace.  Let me know if you have any questions.  Thanks for rating my response and for using FixYa!

At the upper part of the brake pedal, you'll find the brake light switch. Replace it and you should be fine.

the switch on the brake peddle that controls the brake lights is malfuctioning. Replace the switch. It's not expensive or too difficulte to change.