Car Dashboard Warning Lights Explained

Modern vehicles are equipped with dozens of dashboard warning lights designed to alert drivers when a potential problem is detected. These warning indicators help drivers understand when a vehicle system requires attention, whether it relates to the engine, braking system, suspension, emissions system or safety systems.

Some warning lights indicate minor issues such as low washer fluid or tyre pressure, while others may signal more serious mechanical or safety problems that require immediate attention. Understanding what these warning lights mean can help drivers take action quickly and avoid expensive repairs.

Dashboard warning lights typically appear in three colours:

Red warning lights usually indicate serious problems that may require the vehicle to stop immediately. Examples include engine overheating or brake system faults.

Amber or yellow warning lights usually indicate a fault that should be checked soon but may not require immediate stopping.

Green or blue lights generally indicate that a vehicle feature or system is currently active.

Below you will find explanations for many of the most common dashboard warning lights used in modern vehicles.

Common Warning Lights