2003 Chevrolet Silverado 1500 - Center High Mount Stop Light Assembly

Where is the Third Brake Light on My Vehicle?

The center high mount stop light assembly, more commonly known as the third brake light, is a lighting safety feature on all modern vehicles. This light helps other drivers know when the vehicle in front of them is braking or stopping. The position of the third brake light varies depending on the vehicle type, but it is always mounted higher than the vehicle's other two brake lights so it can be easily seen. The third brake light is usually mounted above the rear window or on the trunk lid, and can be included in bed or cargo lights on trucks. Third brake light lenses and assemblies are typically made of plastic, and can suffer damage over time that can lead to cracking, breaking, or a cloudy appearance that limits how much light can pass through. In some cases, a cracked third brake light lens can also allow moisture or condensation to build up inside the housing, which can cause premature bulb failure and socket corrosion. If your third brake light assembly or bulb is damaged, other drivers may not be able to see you as easily on the road. It is important to remember that, just like your vehicle's tail lights and brake lights, the third brake light is required by law, and can result in a warning or traffic ticket if it is not functioning properly. If your third brake light assembly needs to be replaced, or if you need a replacement bulb, visit O'Reilly Auto Parts. We carry the third brake light assemblies and bulbs, as well as other vehicle lighting replacement parts for most vehicle lighting repairs.