Assess the crack size and location
Do not drive if the crack blocks your view
Cover the crack with clear tape to keep out dirt and moisture
Avoid sudden temperature changes
Avoid slamming doors or driving on rough roads
Use a windshield repair kit for small chips or short cracks
Clean the damaged area before applying resin
Inject the repair resin into the crack
Cure the resin with sunlight or a UV lamp
Scrape off excess resin with a razor blade
Replace the windshield if the crack is long, deep, or spreading
Contact a professional auto glass repair shop
Check your insurance coverage for windshield repair or replacement