Why did the car horn suddenly change its sound?

[VanRobert]

There are two main reasons for a sudden change in a car horn's sound: 1. Weather conditions causing the horn's rubber to harden, resulting in sound alteration: This is a normal issue that typically resolves itself when temperatures rise, requiring no special concern. 2. Horn damage: Damage to the horn relay, horn contacts, or power supply circuit can all lead to changes in the horn's sound. About car horns: A vehicle's horn is an audio signaling device that allows drivers to emit necessary signals as required by regulations during operation, warning pedestrians or other vehicles to ensure traffic safety. It's also used for urging movement and signal transmission. The car horn operates through vibrations of a metal diaphragm to produce sound.