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

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Termination deadline
15 minutes from activation
Governing section
SBMC § 8.54.020(E)
Exceptions
Emergency use, testing
Responsible person
Vehicle owner or lawful custodian
Repeat violation window
72 hours triggers seizure
Reclaim deadline
7 calendar days, written request

Summary

A motor vehicle burglar alarm sounding in San Bernardino must shut off within 15 minutes of going off. Letting it run longer, outside emergency use or testing, is a noise-code violation under the city's Noise Control chapter.

The intentional sounding or permitting the sounding outdoors of any fire, burglar or civil defense alarm, siren, whistle or any motor vehicle burglar alarm, except for emergency purposes or for testing, unless such alarm is terminated within 15 minutes of activation.

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: 2026 S-2: Supplement contains: Local legislation current through Ord. MC-1666, passed 8-5-2026).

Full Breakdown

" The 15-minute cap applies specifically to motor vehicle burglar alarms alongside fixed fire and burglar alarms, sirens, and whistles, meaning the same rule that limits a house alarm also limits a car alarm parked on a residential street or in a driveway. 030 lets an officer who encounters a violation issue a written notice to the responsible person, defined as whoever owns, leases, or is lawfully in charge of the vehicle, demanding immediate abatement. A second violation of the same provision within a 72-hour period after that notice empowers the officer to confiscate and impound, as evidence, the alarm components, including the vehicle itself if the component cannot be removed without damaging it. A person claiming ownership of confiscated items has seven calendar days to file a written request with the Police Department to get them back.

Violations & Fines

A car alarm left sounding past 15 minutes is punishable as an infraction or misdemeanor under § 8.54.080 and § 1.12.010: up to $100 for a first offense, $200 for a second within a year, $500 for a third, and a misdemeanor with up to six months in jail and a $1,000 fine on a fourth. A repeat violation within 72 hours of a written notice also exposes the alarm equipment to confiscation under § 8.54.030(B).

Frequently Asked Questions

How long can a car alarm legally sound in San Bernardino?
Fifteen minutes. Section 8.54.020(E) requires any motor vehicle burglar alarm sounded outdoors to terminate within 15 minutes of activation, except when it is being used for a genuine emergency or a test.
Who is responsible if my car alarm keeps going off?
The vehicle's owner or whoever is lawfully in charge of it is the responsible person under § 8.54.030(A)(2), and that person receives the written abatement notice and is liable for any escalation to confiscation or citation.
Can the city seize my car alarm equipment?
Yes, but only after a second violation. Under § 8.54.030(B), if the same responsible person triggers a second violation within 72 hours of a written notice, an officer may confiscate and impound the alarm components as evidence, including the vehicle if the component cannot be removed without damage.

Sources & Official References

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