Dashboard Warning Lights Explained

The dashboard is your car's way of telling you something needs attention. The symbols can look cryptic, but they follow a simple color code, and knowing it helps you decide whether to keep driving or pull over. Your owner's manual has the exact symbols for your vehicle, so treat this guide as a general orientation.

The Color Code

• Green or blue: a system is on or active, such as headlights or cruise control. No action needed.
• Yellow or amber: something needs attention soon. Schedule an inspection.
• Red: a potentially serious problem or a safety issue. Stop driving safely as soon as you can and investigate.

Red Lights: Act Quickly

Engine temperature

A thermometer symbol in red means the engine may be overheating. Pull over when it is safe, turn the engine off, and let it cool before checking coolant. Do not open the radiator cap on a hot engine. Continuing to drive can cause severe damage.

Oil pressure

An oil can symbol in red indicates low oil pressure, which can happen if oil is very low or if there is a mechanical problem. Stop the engine promptly and check the oil level once it has settled. If the level is fine but the light stays on, call for a tow rather than driving.

Brake system

A red brake warning can mean the parking brake is engaged, brake fluid is low, or there is a hydraulic problem. Check the parking brake first. If it is released and the light stays on, have the brakes inspected right away.

Battery or charging

A battery symbol means the charging system may not be working. The car is running on stored battery power and may stall soon. Turn off nonessential electrical items and head to a repair shop or safe location.

Yellow or Amber Lights: Plan to Check Soon

Check engine light

This light covers a broad range of issues, from a loose gas cap to emissions or ignition faults. A steady light means to have the car checked at your earliest convenience. A flashing light can signal a more serious misfire and calls for reducing speed and getting service promptly. Many auto parts stores can read the stored code for you, which helps narrow down the cause.

Tire pressure

A symbol resembling a flat tire with an exclamation mark means one or more tires are low. Check all four with a gauge and fill to the recommended pressure.

Anti-lock brakes

An ABS light means the anti-lock function may be disabled. Normal braking usually still works, but the safety system is not available, so have it inspected soon.

Traction or stability control

A flashing light means the system is working to keep traction, which is normal on slick roads. A steady light may mean the system has a fault or has been switched off.

What to Do When a Light Comes On

1. Note the color and symbol.
2. Check for obvious causes such as the gas cap, parking brake, or low tire pressure.
3. If it is red or flashing, find a safe place to pull over.
4. Consult the owner's manual for that specific symbol.
5. Contact a qualified mechanic for any light that stays on.

The takeaway: remember the color code. Red means stop safely, amber means schedule service, and green or blue means a system is simply active. When in doubt, check your manual and ask a professional before ignoring a light.