DENVER -- It's important to be aware of "puffing" danger this winter season.
Although its cold out, you're not supposed to leave your car running untended.
There is a better chance of it being stolen this way as well.
Experts say, breaking into your car takes seconds but so does preventing it.
See video for tips on how to prevent this happening to you.
Also, visit Coloradans Against Auto Theft website.AlertMe