Is the Zizzing Sound When Pulling the Electronic Handbrake Normal?

[Bennett]

Pulling the electronic handbrake with a zizzing sound is normal. The electronic brake requires the servo motor to work, which produces the zizzing sound. The electronic handbrake is a technology that achieves parking braking through electronic control. Its working principle is the same as that of the mechanical handbrake, both achieving parking control through the friction generated between the brake disc and the brake pads, except that the control method has changed from the previous mechanical handbrake lever to an electronic button. The following is an introduction to the electronic handbrake: 1. Meaning: The electronic handbrake is also known as the electronic parking brake system. The electronic parking brake system integrates the temporary braking function during driving and the long-term braking function after parking, and realizes parking braking through electronic control technology. 2. Function: The electronic handbrake extends from the basic parking function to the application of automatic parking, allowing drivers to not need to brake for a long time when the vehicle stops. When the automatic electronic parking brake is activated, unnecessary sliding of the vehicle can be avoided.