Car dashboard lights and what those icons all mean When a light on your dashboard turns on, it means that something is wrong with your car and you should take it in to get looked at.

Your dashboard warning lights are your car's way of telling you something is wrong. Some of those messages are more urgent ...

So if you see any brake-related symbol light up on your dashboard, the last thing you should do is ignore it. The first must-know warning light is the Brake System Warning.

Another important symbol to keep an eye out for on the dashboard is the low fuel light, which is displayed by a lit-up picture of a tiny gas pump.

The serious electrical fault symbol (Image: BYD) BYD says: "The serious electrical fault icon, identified by just 17% of drivers, is one of the most important warnings on an EV dashboard.