What is the function that makes the car beep when touched?

[McLorenzo]

When a car beeps upon being touched, it refers to the car's anti-theft function. Additional information: I. Introduction to the car anti-theft system: The car anti-theft system is designed to prevent the car itself or items inside the car from being stolen. It consists of an electronically controlled remote or key, an electronic control circuit, an alarm device, and an actuator. II. The functions of the car anti-theft system include: 1. Anti-theft activation and deactivation: Its main purpose is to guard the vehicle against theft or damage. 2. Automatic activation: If the owner forgets to activate the system, the alarm will automatically enter the anti-theft alert mode. 3. Silent activation and deactivation: Silent activation and deactivation operate without noise, making it suitable for use at night, in hospitals, and in other special environments. 4. Secondary activation: If the owner does not open the car door within 30 seconds after deactivation, the system will automatically re-enter the anti-theft mode. 5. Vehicle locator: Helps the owner locate their car in a parking lot. 6. Emergency SOS: Can be set to send an emergency distress signal in critical situations.