If unsure if a road is becoming icy, a driver can:

Question

If you think the road surface may be becoming icy, you can check for ice on your vehicle by opening the window and feeling the front of the side mirror, mirror support, or antenna. If ice has formed on any of these items, the road is likely becoming icy as well.

Accepted Answer

Open the window and check the front of the mirror for ice.

Answer

Guess.

Answer

Try to look at the road closely.

Answer

Look at a weather forecast.