See also:

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 ...

Tone
Only treble and bass can be set in the rear for headphones. The settings are made separately for the left and right headphones. Operation is the same as for the front tone. ...

The concept
The tire inflation pressure is measured in the four mounted tires. The system notifies you if there is a significant loss of pressure in one or more tires. ...