Most cars in America have three colors of lights on the outside. There’s white for headlights and reverse lights, red for brake lights and rear lights and amber for turn signals, at least in the front ...

If your car's brake lights stay on even when the engine is off, the brake light switch — a small, innocuous electrical part you'd only see once something goes wrong with it — is likely the culprit. It ...

Most states require headlights with windshield wipers. This presents a complex legal issue: If you rear-end a car without its lights on, are you at fault? I asked a lawyer to find out. Many states ...

Usually seen blinking away during a wet race or when a Formula 1 car is crawling through the pit lane is a tiny, pulsing red LED seems like it's got something urgent to say. It's easy to overlook if ...