Advanced Braking

Gradient greater than 20% A vehicle with hill descent assist system relieves the driver of this manual intervention and ensures that the desired speed is also maintained whilst descending the hill. How it works The hill descent assist system intervenes when the following conditions are met:

Speed less than 20 km/h

• •

Engine running

• Accelerator and brake pedal not actuated

If the trigger conditions are met and the hill descent assist system ascertains, based on the signals from the accelerator, the engine speed and the speed sensors, that the vehicle speed is increasing, the assist system assumes that the vehicle is driving downhill and that brake intervention is necessary. The system operates at a speed which is slightly higher than walking speed. The vehicle speed, which is to be maintained via brake intervention by the hill descent assist system at all four wheels, depends on the speed at which the gradient is approached and the engaged gear.