Check the brake switch located on your brake pedal shaft. May have to be replaced.
First shut the vehicle off, then set the parking brake, then start it back up, the lights should remain off. Once you release the e-brake the lights will come back on.
Yes. I switched the lamps and they work OK. There is only one fuse marked for the stiop lights and it's ok also.
Bad brake switch. Typically located at the top of the brake pedal.
Replace brake light switch.
Brake lights should NOT be effected by the headlights. Brake light function is completely independent of the headlights. Assuming you are not refering to the tail lights, or marker lights, which are supposed to come when the head lights are turned on. Not having brake lights when the head lights are on is a big safety problem and should be corrected.
After fuse (should be labeled) Try bulbs and defective stop light switch
This usually means a bad or wrong bulb in the tail lights
Brake light switch needs adjusting or replacement.
Defective or mis-adjusted brake light switch
it could be the brake light switch that usually contacts the break pedal when you depress the brake pedal. check that out first.
Sounds like a bad brake light switch. Located above where you put your foot on the brake pedal.
check the brake light relay under the hood