Is the brake fluid level low in your brake master cylinder in the engine compartment ?
brake pads could be worn out. would it be safe to drive for now if the front brake pads are ok?
Light is usually comes on, when there is a problem with pressure in brake lines. Inspect the brake fluid level, and check for leaks.
If the " BRAKE " warning light comes on in your dash either the BRAKE FLUID LEVEL IS LOW in the brake fluid reservoir located in the engine compartment of your 1995 Ford Mustang or the parking / emergency brake is engaged
You have stepped on the brakes
Possible brake line leak
I step on brakes, dashboard light comes on which says stop.
You can take it off the wheel and squeeze it together with a bench wise. You will then need to bleed the air out of all four brakes. To bleed the brakes have someone pump the brake pedal and hold it down while you loosen the bleed valve located on the brake caliper until brake fluid comes out, then retighten the bleed screw and repeat on the other three wheels.
The brakes?
Need brake job. Pads badly worn.
Bad ground in brake light circuit
If the ABS and brake light are coming on while driving, this is an indicator that it is time to get your brakes checked and replaced. If not, the brakes will wear out causing you to not be able to stop.
If it comes on when you step on the brake pedal you might need to bleed your brakes. Also check your brake fluid in the master cylinder.