What is the reason for the mouse clicking sound when braking in the Regal?

[EvanFitz]

This is the sound of the electronic brake pump working and does not affect usage. The working principle of the electronic brake involves using an electronic button control method to achieve parking brake control through the friction generated between the brake disc and brake pads. Below is a detailed introduction about it: 1. Introduction One: The electronic handbrake is also known as the electronic parking brake system. The electronic parking brake system integrates the temporary braking function during driving with the long-term braking function after parking, and achieves parking braking through electronic control technology. 2. Introduction Two: The use of the electronic handbrake is similar to that of a traditional mechanical brake. The only difference is in the control mechanism, where one side uses mechanical components while the other is entirely controlled by an electrical system to ensure the driver does not forget to pull or release the handbrake.