Why does my brake light go out when my headlights are on?

Answer by  hana217 (7)

It could be a lot of things, mostly related to the electrical system. It may be a short circuit or ground. Check the fuses for all the lighting systems - turn signals, headlights, brake lights, etc - and make sure none of them are blown.

Answer by  Booh (50)

It could be a lot of things, mostly related to the electrical system. It may be a short circuit or ground. Check the fuses for all the lighting systems - turn signals, headlights, brake lights, etc - and make sure none of them are blown.

Answer by  champaign9497 (11977)

It sounds like you have a break in your wiring or something is disconnectiong for the brake lights when the headlights are turned on.

Answer by  daly (125)

Brake light go out when headlights are on goes out probably because of the short circuit of cables. I think it's not serious problem.