The brake lights are a separate circuit from the tail lights. If the bulbs and fuse checks okay, I would suspect the brake light switch is At Fault.
Is it the taillights or the brake lights? If taillights it may be a wiring problem, If brake lights check the switch on the brake pedal
Possible ground issue at the taillights.
you need to repair the lights and they will both work and your taillights will work properly
1 of 3 reasons why, your head lights are on, your reflector lights are on ,or your brake sensor is broken
GO AND BUY I NEW light bulb !
in dash lights
It should say TAIL for taillights or maybe brake lights.
Check your fuses! -I once got a ticket for 'no taillights' when my dashlights were fine -it was the fuse.
Brake light switch ?
The tailights might be burned out. Typically the tailights and brake lights are separate bulbs.
If you just barely touch the brake pedal the brake lights will come on but the brakes will for all intent and purpose not be applied.
taillights or brake lights?it is common on many vehicles for the brake light switch (connected directly to the brake pedal) to stick over time. try gently pulling back on the brake pedal with your toe and see if the lights go off.if it is the actual taillights then i would look for a short in the wiring, possibly near the taillights themselves or right at the light switch in the cab.