05/06/2026
Car dashboard warning lights - what do they mean?
Modern cars are filled with electronics and packed with sensors to monitor how your vehicle is behaving.
It’s important to know what car dashboard warning lights mean because you might be able to avoid a car breakdown or full-on failure.
So here's what the different yellow and red warning lights on your dashboard mean, why they come on, how urgent the problem is and what you should do when you see them.
The warning lights on your dashboard follow a traffic light colour system:
🟢Green: the system is working correctly or is currently in use
🟡Yellow: something is not working correctly - take extra care and check it out as soon as possible
🔴Red: there is a serious, and potentially dangerous problem - stop driving as soon as it is safe to do so
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