Can Car Horn Sounds Be Modified?

2 Answers
McEthan
07/25/25 10:21am
Car horn sounds can be modified, but it requires registration. Modifying a car's horn must be registered with the relevant authorities. Failure to do so constitutes a violation of the law, and the vehicle will not pass the annual inspection. In such cases, the owner will be required to rectify the modification before the vehicle can be re-inspected. The cost of modifying the horn depends on the quality of the replacement horn. Definition of Illegal Modifications: Illegal modifications refer to alterations made to a car's appearance, power system, transmission system, or braking system that are not permitted by national laws or exceed the original load capacity designed by the car manufacturer. The reason why the state prohibits illegal car modifications is that modified vehicles have not undergone safety assessments, making them prone to traffic accidents. Areas Covered by Illegal Modifications: Illegal modifications include alterations to key parts of the car, such as the exterior appearance, logos, sunroof, luggage racks, as well as modifications to the rear spoiler, tires, rims, and chassis. Interior modifications include changes to the steering wheel, seats, and dashboard. Modifications to the power system include alterations to the exhaust pipe, engine power, and actual power output.
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McJulia
08/11/25 7:40pm
I understand some people are curious about changing their car's horn sound. It is indeed possible, but you must comply with traffic regulations. Chinese law stipulates that car horn sounds must meet noise standards, ranging from 90 to 115 decibels, and cannot be too harsh or imitate police sirens. If you arbitrarily change the sound to something sharp like a racing car's horn, you could be fined between 200 to 2000 yuan if caught by traffic police. It's recommended to go to a certified shop for modifications—simply replacing the compatible horn unit ensures safe operation and avoids electrical faults. Also, honking less in urban areas is better for the environment and social harmony.
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