What does HDC mean in a car?

[McCarson]

HDC stands for Hill Descent Control, also known as the slope control system. Here is some information about the HDC in cars: 1. HDC enables the driver to smoothly navigate steep downhill sections without the need to press the brake pedal. As needed, the braking system automatically controls each wheel to move forward slightly faster than walking speed, allowing the driver to focus entirely on steering. 2. When driving downhill, if the vehicle's speed is too fast, pressing the HDC switch forces the vehicle to descend at a controlled speed, eliminating the need for constant braking. Additional information: The principle of the HDC system is to combine engine braking with the ABS anti-lock braking system to maintain a 'low speed without losing tire traction' state when descending steep slopes.