Glendale, CA Noise from Specific Sources: Car Alarm Limits (2026)

Glendale regulates fixed burglar and fire alarm systems in detail: Chapter 8.12's alarm ordinance limits an audible alarm on a building to fifteen minutes for a residential structure and thirty minutes for a commercial or industrial one before it becomes a public nuisance subject to summary abatement. But that chapter defines "alarm system" around detecting crime, fire or medical emergencies at a fixed location, not a vehicle. Vehicle alarms are instead addressed through Chapter 8.36's Amplified Sound exemptions.

Section 8.36.290 lists activities exempt from the noise chapter's requirements, and subsection B specifically carves out "warning devices for the protection of public safety, as for example, police, fire, ambulance, train horns, automobile horns, vehicle alarm devices," so long as they're "used for the purpose of warning for the protection of public safety." That means a car alarm sounding because of an actual break-in attempt, or a horn honked to warn of danger, is not a noise-code violation no matter how loud or how long it runs.

The exemption is conditional, though: once a vehicle alarm is not being used for that public-safety purpose, for example, an alarm that malfunctions and cycles repeatedly for no security reason, it loses the exemption and falls back under the chapter's general nuisance rule, § 8.36.110, which makes it unlawful to "wilfully make, continue or cause to be made or continued any loud, unnecessary or unusual noise" that disturbs a reasonable neighbor. Unlike the fixed-alarm ordinance in Chapter 8.12, Glendale sets no specific run-time cap or false-alarm fee schedule for vehicle alarms, so enforcement against a nuisance car alarm proceeds case by case under the general noise provisions, with the default misdemeanor penalty of up to $1,000 and six months in jail under § 1.20.010.