Article 13. Theft Alarm System of California Vehicle Code >> Division 12. >> Chapter 5. >> Article 13.
Any motor vehicle may be equipped with a theft alarm system
which flashes the lights of the vehicle, or sounds an audible signal,
or both, and which operates as follows:
(a) The system may flash any of the lights required or permitted
on the vehicle.
(b) The system may sound an audible signal.
(c) No vehicle shall be equipped with a theft alarm system which
emits the sound of a siren.