Peugeot 306 brake lights wont work all the other lights do also the brake lights come on when headlights are turned on whats problems?
Since the break lights turn on when the head lights are activated, the problem is probably in the wiring of your break lights. Someone may have accidentally disconnected the wires of your break lights to your head lights.
When i 2005 escape you turned on headlights and radio lights went out turned off headlights lights came back on radio?
Why would the gauge lights and radio lights go out when the automatic headlights come on in a 2000 Buick Regal LS?
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.