either your fuse is blown or the wiring is bad
The lights on the odometer on a 1999 Chevy Blazer might not work because of a burned out fuse. They might also not work if the lights are burned out.
on the brake pedal under the dash is a brake light switch. that when you depress the brake it turns your lights on. you might wanna check that
might be a fuse
I may know the answer if it is a full size Blazer. There is a ground wire for the socket that may be connected to an area that has rusted and no longer is grounded. Reconnect to a solid piece of metal for the light to work.
there was a recall on the brake light switch you might want to check into that
i dont thank so on the break lights. the gas might be possable.
Bad brake light switch
check your ground wires...they might be loose or detached.
It might not work as well, but possibly, it could work.
I have a 97 Tahoe and the brake lights were not working and the problem was in the emergency flasher switch. I just jiggled it and the brake lights worked so am thinking you might have the same problem. It could also be the brake pedal switch located right on the pedal arm.
check the brake light switch it might be sticking. located under the dash connected to the brake pedal
If your parking lights are on and your left brake light doesn't work, the brake may have burnt out. You might also have a wiring problem.