DMV and CA information

The following is from California’s Vehicle Code (VC) Section 26710: Defective Windshields and Rear Windows: Defective Windshields and Rear Windows 26710. It is unlawful to operate any motor vehicle upon a highway when the windshield or rear window is in such a defective condition as to impair the driver’s vision either to the front or rear. In the event any windshield or rear window fails to comply with this code the officer making the inspection shall direct the driver to make the windshield and rear window conform to the requirements of this code within 48 hours. The officer may also arrest the driver and give him notice to appear and further require the driver or the owner of the vehicle to produce in court satisfactory evidence that the windshield or rear window has been made to conform to the requirements of this code. Though the law doesn’t specify what constitutes “impaired driver’s vision”, in California driving a car with a cracked windshield will almost guaranteed get you a ticket if you’re pulled over.

Windshield repair or replace?

Depending on the extent of the damage on your car’s windshield you may be able to repair it, or otherwise completely replace it. If your windshield is cracked directly in front of the driver’s line of sight some shops may decline repairing it, since even then it can obstruct your vision and cause safety concerns. If your windshield is too damaged you may have to replace it completely, which can cost a few hundred dollars.

Cracked windshield safety concerns

Do note that impaired vision is not the only reason why you should repair or replace your broken or damaged car windshield. An undamaged windshield is stronger and in case of an accident can prevent further injuries. In a rollover wreck, the strength of the windshield/sealant system is designed to keep the roof from crushing more than 5 inches when there is a force of approx 1-1/2 times the weight of the vehicle on the roof. In a front end collision at approximately 30mph, the windshield/sealant system is designed to keep at least 50% of the glass sealed to the car which could keep occupants from being ejected. While you can drive with a cracked windshield and may avoid a ticket from police, it’s certainly not advisable as having a cracked windshield is not only dangerous, but in California it is also illegal. Sources: California VC Division 12 (Equipment of Vehicles) Chapter 4 (Windshields and Mirrors), Section 26710: Defective Windshields and Rear Windows California Cracked Windshield Laws: Is driving with a cracked windshield legal in California?