See also:

Telephone
...

Headlamp range control
With halogen headlamps, the headlamp range of the low beams can be manually adjusted for the vehicle load to avoid blinding oncoming traffic. The values following the slash apply to trailer ope ...

The concept
The system is functional at speeds beginning at approx. 20 mph/30 km/h. It maintains the speed that was set using the control elements on the steering wheel. The system brakes on downhill gradie ...