When you put your high beams on all the lights go out Why?

When you turn on your high beams, it may cause the low beam lights to turn off as a safety feature or due to a malfunction in the vehicle’s electrical system. This can happen if the vehicle's wiring is not designed to handle both high and low beams simultaneously or if there’s a blown fuse. In some cars, the high beams override the low beams to ensure maximum visibility without conflicting light sources. If this behavior is unexpected, it’s best to consult the vehicle’s manual or a mechanic for further investigation.