See also:

DTMF suffix dialing
DTMF suffix dialing can be used for gaining access to network services or for controlling devices, e.g., to make a remote inquiry of an answering machine. The DTMF code is needed for this purpose. ...

The concept
▷ Most functions that are displayed on the Control Display can be operated by spoken commands via the voice activation system. The system prompts you to make your entries. ▷ Function ...

Odometer and trip odometer
Resetting trip odometer: With the ignition switched on, press button 1 in the instrument cluster. ...