See also:

Instrument lighting
You can adjust the brightness of the instrument lighting only when the parking lamps or the low beams are switched on. 1.  Push button 1in the turn signal/high beam lever up or down repeated ...

Activating HDC
Press the button; the LED above the button lights up. ...

Knob in the instrument cluster
Press the knob. ▷ When the ignition is switched on, the trip odometer is reset. Press the knob for approx. 5 seconds: View service requirement display ▷ When the ignition is switched ...