This is probably the stoplight switch. See my answer to the same question, in an earlier post.
my brake light stay on but emergency brake is unhooked
Probably a brake light switch.
STICKING BRAKE LIGHT SWITCH AT THE TOP OF THE BRAKE BEDAL
Bent brake light switch bracket above the brake pedal.
The parking brake light stay lit on the 1999 Mitsubishi Montero sport the parking brake is working and you have not put the light off.
SWITCH
Defective or out of adjustment brake light switch.Defective or out of adjustment brake light switch.
check the brake light switch
Have you checked your brake fluid?
It is important to know what the meanings of the emergency lights on a ca. A brake light would stay on in a car because the brake system needed to be fixed, and the light needed to be reset.
Brake lights? Check brake light switch for adjustment or replacement
The brake indicator light is for the EMERGENCY break, release this break.