the brake switch at the pedal is stuck or out of adjustment.
most times if brake lights are stuck on you have a bad brake light switch on pedal under dash
Brake Lights "Stuck" ONUsually that is caused by the brake light switch becoming "out of adjustment," but sometimes it can be caused by a defective brake light switch.
the brake lights are on a separate cuircut,if your brake lights are staying then it will be a fault with the brake light switch. the switch is located under dash,and will be on or very close to brake pedal.
"Stuck" brake lights indicate that the brake light switch on the brake pedal is broken. It should be replaced.
the parking brake may be stuck and that causes the brakes to lock up completely, and the horn and lights will stick work if the parking brake is stuck.
If none of the brake lights are working i would suspect the brake switch at the brake pedal.
If the brake lights stay on that probably means the switch on the brake pedal that activates them is defective.
Defective or out of adjustment brake light switch.
check your clutch and brake fluid
Possibly a defective brake light swith stuck closed.
brake lite switch will keep it in park