If the windshield on your car isn't cracked or chipped, you might not think that you need a replacement. Unfortunately, that's not necessarily the case. Your windshield might not be safe, even if there are no signs of visible damage. This is especially true if you own an older model car, and the windshield is original equipment. Take a look at the list provided below. If you've noticed any of those issues on your windshield, it's time for a windshield replacement.