Guide

Reading Dashboard Warning Lights: What Each One Means

What the common dashboard symbols mean, which colors signal real danger, and when to pull over.

Reviewed by Michael Koster · Updated April 2026

The colors tell you the urgency

Red means stop — a serious safety or mechanical issue that needs immediate attention.
Yellow or amber means caution — something needs service soon, but you can usually keep driving carefully.
Green or blue is just informational, telling you a system (like high beams or cruise control) is active.

Oil pressure (oil can symbol): stop the engine as soon as it’s safe. Low oil pressure can destroy the engine in minutes.
Temperature (thermometer in waves): the engine is overheating. Pull over and let it cool before checking coolant.
Battery/charging (battery symbol): the charging system has failed; you may have limited time before the car dies.
Brake (circle with “!” or “BRAKE”): could be the parking brake, low brake fluid, or a hydraulic fault — treat it seriously.

Check engine light: ranges from a loose gas cap to a misfire. If it’s flashing, reduce power and get it checked promptly.
TPMS (tire with “!”): at least one tire is low — check and inflate to the recommended PSI.
ABS: standard brakes still work, but the anti-lock system needs inspection.
Low fuel and washer fluid lights are simple top-up reminders.

Note the color and symbol, and whether it’s steady or flashing — flashing almost always means more urgent.
For any red light, find a safe place to stop and check your owner’s manual, which lists every symbol for your exact car.
A repair shop can read the diagnostic trouble code to pinpoint the cause, especially for the check engine light.

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