Information / [CH16] Vehicular Offenses / [16] [24] Unnecessary Use of Horn [16] [24] Unnecessary Use of Horn 1 min read Updated Jul 6, 2026 8 views The driver of a motor vehicle on a public roadway shall not use the horn unless it is to ensure safe operation of the motor vehicle. Unnecessary Use of Horn is an Infraction.Jail Time: No jail time. Fine: $100