Iowa § 321.432 - 321.432 Horns and warning devices.
Full text of Iowa Iowa Code § 321.432 — 321.432 Horns and warning devices., with citation guidance and answers to common questions.
§ 321.432. 321.432 Horns and warning devices.
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. [S13, §1571-m17; C24, 27, 31, 35, §5040, 5041; C39, §5034.41; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §321.432] 2024 Acts, ch 1043, §85 Referred to in §321.234A, 805.8A(3)(af) For applicable scheduled fine, see §805.8A, subsection 3 Thu Dec 11 19:41:52 2025 Iowa Code 2026, Section 321.432 (29, 0)
Source: official Iowa text · Last verified 2026-08-27
Frequently Asked Questions About Iowa § 321.432
What does Iowa Code § 321.432 cover?
Section 321.432 ("321.432 Horns and warning devices.") is part of the Iowa Code, the codified statutory law of Iowa. It sets out the legal rule or procedure described in the text above. Statutes are amended regularly, so always verify against the official source.
How do I cite Iowa § 321.432?
A common citation format is "Iowa Code § 321.432" (Iowa). Legal writing may require the code abbreviation, section number, and year or edition. Match the style required by your court, professor, or publisher.
Is this the official text of Iowa law?
No. This page is for research and education and may not include the most recent amendments. For official current law, check the Iowa official source linked on this page or consult a licensed Iowa attorney.
How does Iowa § 321.432 apply to my situation?
Statutes are interpreted in context, and application depends on your specific facts. Only a licensed attorney in Iowa can advise on how this section applies to you. Contact your state or local bar association for a referral.
Sources & Verification
Not legal advice. Verify against the official source and consult a licensed attorney in Iowa.