Is it a Large Crack or a Small Scratch?
Should your window have a chip that looks similar to a bull's-eye, a B.B. chip or a flowered chip, then an epoxy resin could very well be a simple quick solution in order to save you money, which can either be done by a repair technician or by yourself, at your house, with a window repair kit.
If you can run your fingernail across the crack and it doesn't get snagged, and if the chip is less than 1-inch, then a lower viscosity window resin can be employed in the repair process, meaning if you're comfortable restoring your windshield yourself, an at home repair kit will be enough.
Should you have spider web cracks or any surface area damage greater than an inch, you'll presumably need to replace your entire window to avoid the glass from splintering more. If you're uncertain of your windshield repair needs, call Cadillac of Portland at (503) 200-2535 and schedule a consultation to have our certified Cadillac mechanics take a look.