Auto glass is sturdier than most types of glass found in your home, but it's still vulnerable to unexpected impact. If your windshield becomes cracked while you're driving, you should take care of the problem as soon as you're able. Here are four things you should never do when you have a crack in your windshield. 1. Don't ignore the problem. It can be tempting to ignore the problem, especially if the crack or chip in your windshield is relatively minor.