{"data":{"id":"us-ia/iowa-code-321.432","jurisdiction":"us-ia","citation":"Iowa Code § 321.432","heading":"Horns and warning devices.","body":"Every motor vehicle when operated upon a highway shall be equipped with a horn in good working order and capable of emitting sound audible under normal conditions from a distance of not less than two hundred feet, but no horn or other warning device shall emit an unreasonably loud or harsh sound or a whistle. The driver of a motor vehicle shall when reasonably necessary to ensure safe operation give audible warning with the horn but shall not otherwise use such horn when upon a highway.","path":["Title VIII - TRANSPORTATION (Ch. 306 - 330B)","Chapter 321 - MOTOR VEHICLES AND LAW OF THE ROAD"],"source_url":"https://www.legis.iowa.gov/docs/code/2026/321.432.pdf","current_through":"Iowa Code 2026 edition","vintage":"","retrieved_at":"2026-09-14T19:40:08Z","sha256":"b3e446d7a5ac1b069e6f7100c5f1a9759e3abc3a014886f71fcd8c096bc793a1","source_id":"us-ia","stale":false,"prev":"us-ia/iowa-code-321.431","next":"us-ia/iowa-code-321.433"},"notice":"GroundRules: Original legal text. Not legal advice."}