Hill Descent Control (HDC)

Chapter 4 · Manual page 217

HDC is just an auxiliary function, and cannot ensure the vehicle drives down a steep slope at a low speed in all conditions, such as slippery ground, snowy road surface or steep slope, etc.

Even when HDC is in use, the driver still has to pay close attention to the driving state of the vehicle, and take active control when necessary. Because in certain cases, HDC may exit from the operating state temporarily.

Under some driving conditions on downhill surfaces (e.g. driving down a slope with high speed, small slope, etc.), HDC is inoperative, in this case the driver will be required to control the speed by pressing the brake pedal to ensure safe driving. The HDC system is an auxiliary function designed for vehicles running on acute downhill surfaces. It reduces the speed by applying the brake force, thus assisting the driver to drive on acute downhill surfaces smoothly.

When the HDC is working, it is normal for the brake system to generate slight vibration or working noise.

When the HDC is working, do not shift to N gear, since this operation will deactivate the HDC function. HDC is off by default. After the vehicle is powered on, the function can be enabled on the central screen. HDC system has four states as follows:

  1. Standby: Touch the HDC button to enable the function and enter the standby state.
  2. Operating: In Standby mode, when the vehicle drives on the acute downhill surface at low speed, if the driver does not press the brake pedal or the accelerator pedal, HDC automatically enters the Operating state. Meanwhile it may be accompanied by the working noise of the brake system, and the vehicle drives down the acute downhill surface smoothly.
  3. Temporary Deactivation: Press the accelerator pedal or brake pedal to a certain extent whilst in the Operating state, HDC will temporarily remove itself from the operating state.
  4. OFF: Disable the function on the central screen. Note: When the vehicle steers at a fast speed on the hill with a certain gradient, HDC may switch from Standby Status to Operating Status.