If the bulbs are in good shape but the brake lights dont come on when you step on the pedal then I would say you have a bad stop light switch. It is located on the upper part of the brake pedal. If you look under the dash, just follow the brake pedal and you will see it. It should be an overall easy replacement.
If the bulbs and fuses are fine, it must be your brake light switch attached to the arm on your brake pedal.
Check bulbs, fuses and brake switch in that order.
Bad bulbs or brake light switch.
AnswerThe bulbs for the brake lights are usually separate from the normal tail light bulbs. Check and replace the brake bulbs first, and if they are still not working examine the fuses, switch and wiring.
fuses are blown, or bulbs are blown
Working brake lights are important for safety reasons while driving. It is important to check all of the wiring, if the brake lights are not working and the fuses and bulbs have been checked.
check fuses, and then check for power to the bulbs check for power in and out of brake switch
Brake light switch on the brake pedal is defective
Likely to be the brake light switch on the pedal at fault if the bulbs and fuses are good and other lights work ok.
Check all the fuses. If not bulbs or switch that's all that it can be,
check the brake light switch on the brake pedal
check the bulbs to see if there burnt and check your fuses