Does the middle brake light have to work?
Federal law mandates that all vehicles have the third brake light outfitted within the car. Additionally, the third light must be comparable to the other brake lights on the vehicle so that it is not distracting to the drivers behind the vehicle.
Why does my third brake light work?
When the lower lights do not come on and only the third-brake light works, the brake-light switch may be ruled out. Again try the emergency-flashers to check for wiring, socket and lamp problems. If the flashers work, check for blown fuses as a few vehicles use separate circuits for the lower and third brake lights.
How do you fix a middle brake light?
Pull the lamp housing straight out from the rear of the cab. Twist the bulb socket at the rear of the housing in a counterclockwise direction and pull it straight out of the housing. Pull the bulb from the socket and insert a new bulb. Replace the lamp housing in the reverse order.
What to do when your third brake light is not working?
When the lower lights do not come on and only the third-brake light works, the brake-light switch may be ruled out. Again try the emergency-flashers to check for wiring, socket and lamp problems. If the flashers work, check for blown fuses as a few vehicles use separate circuits for the lower and third brake lights.
What causes a brake light to go out on one side?
Brake lights out on one side. A brake light out on one side only is most often a bulb or socket problem. Try the emergency-flashers and if the lamp still does not light, bulbs or sockets are the very likely cause.
Where are the brake lights on my car?
Locate the fuse for the brake lights. This is a separate one from the third light. Trace the voltage from there to the brake switch atop the brake pedal bracket and from there to the brake lights using a test light. This is a simple circuit for the brake lights. Ken on May 29, 2019:
What do you need to know about brake light switches?
When checking the brake light switch (or any type of car electrical circuit for that matter), it’s a good idea to have on hand the repair manual for the particular vehicle model. The manual comes with the location of the brake switch, the brake light circuit diagram, and lets you identify wires and connections.