How to De-Ice Your Windshield Fast (Without Cracking It)

Iced over windshield, and you're already running late? Here's the fastest safe way to clear it, from AAA. And the one shortcut that can crack your glass.

1. Step 1: Start It, Outside

Start the car. If it's in a garage, back it out first. Never let a car run inside a garage, even with the door open, because of carbon monoxide.

2. Step 2: Defrost, Full Heat, Recirculate

Set the heater to defrost, turn the temperature to full heat, and switch the air to recirculate, so it warms up faster. Flip both sun visors down, to aim more warm air at the glass.

3. Step 3: Scrape With Plastic

Once the ice starts to soften, clear it with a plastic scraper or a soft brush. Never use metal. It can scratch the glass, and ruin your wiper blades.

4. Never Use Hot Water

Here's the shortcut to skip. Don't pour hot water on a frozen windshield. The sudden temperature change can crack the glass.

5. Optional: Homemade De-Icer

AAA's homemade de-icer is one part rubbing alcohol, two parts water, and a few drops of dish soap in a spray bottle. Spray it on, and the ice loosens faster.

6. Clear All The Glass

Clear every window, mirror, and the lights, not just a little peephole. Many states actually require it. And brush the snow off the roof, so it doesn't slide onto your windshield when you brake.