What does the hill start assist function mean?

[McAllison]

The hill start assist system is a function developed based on the ESP system, which prevents the vehicle from rolling back when starting on a slope. Here is a detailed introduction about hill start assist: 1. The hill start assist function temporarily applies braking to all four wheels to prevent the vehicle from rolling back: When starting on a steep or slippery slope, the driver switches from the brake pedal to the accelerator pedal, which may cause the vehicle to roll backward, making it difficult to start. However, with hill start assist control, the vehicle is prevented from rolling backward, allowing the driver to start easily and operate the pedals smoothly. 2. The hill start assist function has activation conditions: (1) The gear lever is not in the P position (for automatic transmission models), and the accelerator pedal is not pressed. (2) The vehicle must be in a stationary state. (3) The driver has not engaged the handbrake, footbrake, or electronic brake.