It is activated when the automobile exceeds a particular speed when on a descent, and it slows the vehicle down automatically to just over walking speed, while also stabilizing the car and reducing the risk of locking the wheels.
It also gives the driver even greater control over their car without the need to keep the brake pressed constantly. They can vary their speed within certain limits by pressing the brake, accelerator or by using the cruise control buttons. Any drivers behind are warned automatically by the BMW’s brake lights.
