Driving with a cracked windshield is illegal in Arizona under ARS § 28-952. The statute requires windshields to be "so constructed, treated, or combined with other materials as to reduce insofar as practicable the likelihood of injury to occupants in the event of collision."
Any crack, chip, or damage that impairs the driver's vision or compromises structural integrity is a violation. Law enforcement can issue a citation, typically a fix-it ticket requiring repair within a set period. Severe damage may warrant immediate tow.
Insurance often covers windshield replacement with low or zero deductible under comprehensive coverage.