If your brake lights are functioning but your tail lights are not, it could indicate a blown fuse, a faulty bulb, or a problem with the wiring specific to the tail lights. Check the tail light bulbs to see if they need replacement, and inspect the associated fuses in the fuse box for any damage. Additionally, there might be an issue with the light switch or a grounding problem in the tail light circuit. If troubleshooting these components doesn't resolve the issue, consulting a professional mechanic may be necessary.
Those tail lights could be the brake lights you are seeing and that would be a faulty brake light switch or the brake light switch is out of adjustment.
They are burned out.
Check the ground wire. You have a bad connection somewhere.
Break lights come on when you step on the break, they do not come on when the head lights are turned on.
check that you have double filament bulbs in tail lights
Have you checked the fuses?
Defective or misaligned brake light switch.
Check the fuses- Shift interlock is the same circuit as brake lights. As a temporary measure - try to turn the key to 1st (unlock) position shift to neutral to start vehicle and then shift to Drive.
Check the fuse, bulbs and actual regulator switch in that order
check your ground wire in the back
my guess is that it is the brake relay
Check the park lamp fuse.