When do the brake lights not come on?
When do the brake lights not come on? Brake lights work fine until the headlights are turned on. When the headlights are turned on and the brake applied, the bottom running lights (same bulb as brake lights, different filament) go out and the brake lights do not come on. Third brake light works ok regardless. Is it dangerous to drive without brake lights? Driving during the night without brake lights or tail lights can thus be extremely dangerous. The problem is that you cannot often tell if your taillights and brake lights are faulty. Therefore, it is necessary for both...