Having tinted windows is not necessarily illegal. If tinted windows meet the requirements of California law (Vehicle Code § 26708.5), there is no basis for a traffic stop based solely on the fact that an officer thinks the windows are illegally tinted, according to the case of People v. Butler. 
Just because an officer observes tinted [...]

Traffic tickets can be a huge pain.  Not only do they add points to your record but they can later affect your insurance rates.  Many people forget that traffic tickets are infractions and are handled by the criminal courts of California.  Your failure to appear for a traffic citation for your court date could result [...]