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Dashboard Warning Lights Guide

Identify any dashboard warning light instantly. See what it means, how serious it is, and what you should do — for every car make and model.

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How Warning Lights Work

🔴 Red Lights

Critical warnings requiring immediate attention. Stop driving as soon as safely possible. These indicate potentially dangerous conditions like low oil pressure or overheating.

🟡 Yellow / Amber

Caution warnings. Something needs attention soon, but it's usually safe to drive short distances. Schedule service within a few days.

🔵 Blue / Green

Information indicators. These show that a system is active or on. No action needed — they're part of normal vehicle operation.

⚡ Flashing vs Steady

A flashing warning light is more urgent than a steady one. A flashing check engine light means stop driving immediately — it indicates severe engine misfire that can damage the catalytic converter.

Frequently Asked Questions

Red = Critical — stop driving. Yellow/Amber = Warning — service needed soon. Blue/Green = Informational — system is active, no action needed. This color coding is universal across all vehicle manufacturers.
The check engine light can mean hundreds of things — from a loose gas cap to a failing catalytic converter. You need to read the specific diagnostic trouble code (DTC) to know what's wrong. Use an OBD-II scanner or try our free OBD-II code lookup tool.
Usually yes, for short distances. Yellow lights mean something needs attention but isn't immediately dangerous. However, if the car drives differently (rough idle, loss of power, strange noises), pull over. Get it checked within a few days — don't ignore it.
The oil pressure and engine temperature warnings are the most critical. Low oil pressure can destroy an engine in minutes. Overheating can cause head gasket failure or seizure. If either appears, stop driving immediately and call for assistance.
Most warning lights reset automatically once the problem is fixed. For maintenance reminders, check your owner's manual for the reset procedure. Disconnecting the battery for 15 minutes can clear some lights, but always fix the root cause first — the light will return if the problem isn't resolved.