Keeping this in consideration, how much does it cost to fix a brake light?
It’s almost always a minimal cost for brake light bulb replacement as a bulb is $5 to $10 and the labour charge is between $10 and $20, although some designs are slightly more.
Secondly, how do you know if your brake light switch is bad? If a switch is bad, the brake lights won’t operate and the transmission shifter will not come out of “Park” position. In cars with a push-button start system, a faulty brake light switch can cause the vehicle not to start. Often, a brake light switch might be sticking and work intermittently.
Keeping this in consideration, what can cause brake lights to stop working?
When your brake lights don’t work, it is usually because of a blown fuse, a worn-out or broken brake light switch, or a burned-out light bulb.
Is it illegal to drive with a brake light out?
No but you should get it fixed as soon as possible. The police could (but it’s unlikely) pull you over about it and issue you with a warning to get it fixed within a short period of time. Your vehicle is unroadworthy as it requires a brake light on each side of the vehicle.