2000 1500 silverado
There is probably a break light bulb relay under the hood fuse panel, and or a switch in the break peddle area that could be bad. Start with the switch under the dash in the break peddle area. This turns on and off the break lights. May even be just out of adjustment.
Search Chevrolet Silverado 1500 Questions
Chevrolet Silverado 1500 Experts