Check fuses.
Check wiring connections
check your bulbs
it dont have to, change your brake shoes/pads every 30000 miles or whatever
depending on the vehicle, most have a circuit board where the rear lights go in then on to the rear light covers.these tend to go out with time. you should pull the plug and test the wires to see if they have fire. if they dont then it will be the brake light switch located on the brake pedal under the dash. if it does have fire then it is the circuit boards.
brake lights dont work
you dont adjust you replace brake shoes
You dont
bulbs blown on high side or wiring shorted
Above the brake pedal. If your main brake lights dont work but your third center brake light does, then the brake light switch is not the problem. Its is the turn signal switch.
Check the fuse, the bulbs, and the brake light switch.
You Dont Grease It Up enough
You dont. seriously
Check the brake light fuse first. Then check for a bad brake light switch at the brake pedal.