Lynnwood, WA Noise from Specific Sources: Car Alarm Limits (2026)
Key Facts
- Governing section
- LMC 10.12.300(B)(1)
- Covered devices
- Horns, signaling devices
- Necessity exception
- Warning of actual danger
- Enforcing agency
- Lynnwood Police Department
- Penalty class
- Misdemeanor, LMC 10.12.800
Summary
Lynnwood, Washington makes it a noise disturbance to sound a vehicle horn or other signaling device unreasonably loudly, harshly, or for an unnecessary length of time, under LMC 10.12.300(B)(1). The rule covers automobiles, trucks, motorcycles and transit vehicles on any public street or public place in the city.
1. The sounding of any horn or signaling device on any automobile, truck, motorcycle, transit vehicle or other vehicle on any public street or public place of the city, except as a necessary warning of danger to person or property, the creation by means of any such signaling device of any unreasonably loud or harsh sound, and the sounding of any such device for an unnecessary and unreasonable period of time;
Official source re-checked September 8, 2026: no newer edition of the code had been published (publisher’s edition: current through Ordinance 3512, passed May 26, 2026).
Full Breakdown
300(B)(1) reaches vehicle horns and signaling devices, the category a malfunctioning or repeatedly triggered vehicle alarm falls into. The provision bars sounding any horn or signaling device on an automobile, truck, motorcycle, transit vehicle or other vehicle on a public street or public place, except as a necessary warning of danger to a person or property, and it separately prohibits creating an unreasonably loud or harsh sound with such a device, or sounding it for an unnecessary and unreasonable period of time. 300(A). 700(A). 800.
200 protect legitimate warning use: noise from emergency work needed for public safety, or work to restore property after a calamity, is not subject to the chapter, and law enforcement, ambulance and fire personnel are not restricted from necessary noise in the performance of their duties.
Violations & Fines
Sounding a vehicle horn, signaling device, or alarm unreasonably loudly, harshly, or for longer than necessary on a public street or public place is a misdemeanor under LMC 10.12.800, enforced by the Lynnwood Police Department under LMC 10.12.700(A) as a violation of LMC 10.12.300(B)(1).
Frequently Asked Questions
Does Lynnwood have a specific car alarm ordinance?
Can my horn ever legally be loud in Lynnwood?
What happens if my car alarm keeps triggering and disturbing neighbors?
Sources & Official References
Other rules in Lynnwood
Compare Lynnwood to another location·View the Washington noise from specific sources overview
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Car Alarm Limits in Nearby Cities
How other cities in Snohomish County handle car alarm limits.