If your windshield breaks you get a new one with no out-of-pocket cost.
If you have full glass coverage, your auto insurance company will cover the expense of repairing or replacing your windshield in full with no out-of-pocket costs to you. If you don’t have this coverage, you will be responsible for paying your deductible or the full cost of the windshield.
John’s windshield is cracked and his car won't pass inspection. Luckily, he elected to go with the full glass coverage offered by his insurance provider. Now, instead of paying $600 for a new windshield, his insurance picks up the tab in full.
Glass replacement is the most frequent claim on auto policies. The region of the country you live in should influence your decision whether or not to add this coverage to your policy. For example, if you live in the Northeast where roads are covered with sand, salt and stones, the odds of you cracking or breaking a windshield increase significantly.