The five most common winter warning lights, what they mean, and when it’s important to have them checked for safe holiday driving.

1. Tire Pressure (TPMS) Light

Why it happens: Cold weather drops tire pressure fast.

What to do: Add air to the Recommended PSI on the door sticker. If one tire keeps losing pressure, have it checked.

Urgency: Low. Unless a tire is going flat.

2. Battery / Charging System Light

Why it happens: Weak batteries struggle in cold temperatures.

What to do: If the light stays on, get a battery and alternator test ASAP.

Urgency: High. This one can leave you stranded.

3. Solid Check Engine Light

Why it happens: Loose gas caps, cold starts, moisture in sensors.

What to do: Tighten the gas cap, monitor for a day. If it stays on, Schedule a Diagnostic.

Urgency: Moderate.

4. Flashing Check Engine Light

Why it happens: Misfires that can damage the engine.

What to do: Pull over if the car runs rough and call a shop.

Urgency: Very high.

5. ABS or Traction Control Light

Why it happens: Ice and snow trigger the system more often.

What to do: If the light stays on after driving on dry roads, get it checked.

Urgency: Low to medium.