Lumbar support
The curvature of the seat backrest can be adjusted in such a way that it supports the lumbar region of the spine. The lower back and the spine are supported for upright posture.

- Press the front/rear section of the switch. The curvature is increased/decreased.
- Press the upper/lower section of the switch. The curvature is shifted up/down.
See also:
Buttons at a glance
1 System on/off, interrupt
2 Resume speed
3 Store speed*
4 Reduce distance
5 Store, maintain/change speed
6 Increase distance ...
Messages
Information about messages. ...
The concept
HDC is a downhill driving assistant that automatically
controls vehicle speed on steep downhill
gradients. Without requiring brake application,
the vehicle moves at slightly more than
twice wa ...
