A dashboard lighting up can be alarming, but the lights follow a simple color code. Learn it and you will know instantly whether to pull over, book a garage, or simply note a reminder.

Red means stop Red lights signal a serious, often immediate problem. Treat them as urgent. - Oil pressure (oil can): low oil pressure can wreck an engine in minutes. Pull over safely and switch off. - Engine temperature (thermometer): the engine is overheating. Stop, let it cool, and check coolant once safe. - Brake warning: could be the handbrake left on, or low brake fluid, which is dangerous. Verify before driving on. - Battery/charging: the charging system may be failing; you could lose power soon.

If a red light appears, find a safe place to stop as soon as you can.

Amber or yellow means caution Amber lights mean something needs attention soon, but rarely require stopping instantly. - Check engine light: a broad catch-all. If steady, drive gently and book a diagnostic. If flashing, that is more serious, ease off and get it seen quickly. - ABS or traction control: a safety system may be reduced; brakes still work, but get it checked. - Tire pressure (TPMS): a tire is low. Check and inflate.

Green and blue are just information Green and blue lights are not warnings at all. They simply tell you a system is active, your headlights, indicators, cruise control, or high beams. No action needed.

The smart response Keep your manual in the glovebox; it pictures every light for your exact car. When in doubt, a red light means act now, amber means plan a fix, and a flashing light always means take it seriously. Ignoring an amber light until it turns red is how small problems become expensive ones.