Non-Functioning or Absent Horn
A CVC 27000 citation means your vehicle horn was not working or was missing. Vehicle Code 27000(a) requires a motor vehicle operated on a highway to have a horn in good working order, audible under normal conditions from at least 200 feet, that does not emit an unreasonably loud or harsh sound. Repairing or replacing the horn, then getting the correction certified, resolves this violation.
Correction Window
The deadline is printed on your citation.
Fee After Correction
These steps apply when your ticket was issued as correctable. An officer does not issue it that way if there is evidence of fraud or persistent neglect, the violation presents an immediate safety hazard, or you cannot promptly correct it (Vehicle Code 40610(b)). When the court accepts your proof of correction, the court clerk collects a $25 fee for each corrected violation (Vehicle Code 40611). There is no fee if the agency that cited you handles the correction and nothing is sent to the court (Vehicle Code 40611(c)). Without proof of correction, you may owe the full fine. Check your notice or ask your court for the amount.
Who Can Certify
A police department, the CHP, a sheriff, a marshal or another agency that enforces the Vehicle Code can certify this correction once the horn works.
The court must dismiss a corrected violation when you deliver proof of correction on or before the date on your ticket (Vehicle Code 40522). After that date it may not accept the correction, and you may owe the full fine. If you fail to appear without good cause, the court may add a civil assessment of up to $100 after mailing you a warning notice (Penal Code 1214.1). Willfully failing to appear, or willfully failing to deliver proof of correction, is a misdemeanor (Vehicle Code 40508 and 40616). If you need more time, ask the court before the date passes.
Step by Step
How to Correct This Violation
- 1
Test the horn to determine whether the issue is the horn itself, the wiring, or the horn button.
- 2
Replace the horn or have the wiring repaired at an auto parts store or mechanic.
- 3
Confirm the horn sounds when the button is pressed.
- 4
Have a law enforcement officer sign the certificate of correction.
- 5
Submit the signed citation and $25 fee to the court before your deadline.
Questions
Frequently Asked Questions
- Can I install an aftermarket horn?
- Yes, if it meets Vehicle Code 27000(a): it must work, be audible under normal conditions from at least 200 feet, and not emit an unreasonably loud or harsh sound.
This guide covers passenger vehicles. Some rules differ for commercial vehicles and truck tractors (for example, where registration tabs go under Vehicle Code 5204(a)). If you were driving one, check with your employer or a licensed attorney.
This guide provides general procedural information only. It is not legal advice. For questions specific to your citation, contact the court listed on your ticket.
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