Section 27001.

Cal. Vehicle Code - VEH § 27001.
in effect
Sign in to generate a plain English summaryAsk Belisarius Agent
(a) The driver of a motor vehicle when reasonably necessary to insure safe operation shall give audible warning with his horn. (b) The horn shall not otherwise be used, except as a theft alarm system which operates as specified in Article 13 (commencing with Section 28085) of this chapter.

References

referencesCal. Vehicle Code - VEH § 28085.
Source: CA Legislative Counsel Bulk DataURL: https://downloads.leginfo.legislature.ca.gov/pubinfo_2025.zipFetched: 6/27/2026

Starting a business in California? California LLC guide: costs and requirements