I'm assuming that one of your brake light bulbs is not working
I'm assuming that one of your brake lights is not working , if this is a message being displayed in your Explorer
no u dont have to change the brakes.you just have to check your brake lamps,u may have one blown out,loose, or just needs replacing.step on brakes n check which one is bad.
could very well be brake switch on back of brake pedal. it is located at the top back off pedal, or it could be out of adjustment. check and see if power to back lamps, if not check brake switch.
On my girlfriends 2001 Escape it came on because the brake fluid was low. Open the hood and look at the fluid reservoir. If it is not filled to the full line, fill it with the proper brake fluid and see if the light goes out.
Check the bulbs sounds like they have been put in backwards Double filamented smaller is for brake lamps larger is for tail lamps
check your bulb sockets for cleanliness, Check for a bad ground wire.
the brake lamps, smart one the brake lamps, smart one
Check the brake switch at the pedal.
Check to see if Brake lamps work when brake pedal is pressed. If not gear shifter is locked for safety so replace fuse or repair brake lamp switch.
it's probably the brake light switch. in front of the brake padle. have you check the brake switch. their not very expensive. at auto zone
ADD BRAKE FLUID
Check the brake fluid.