Switching between letters and numbers

Depending on the menu, you can switch between entering letters and numbers:

Switching between upper and lower

    See also:

    Environmental conditions
    Say the commands, numbers, and letters smoothly and with normal volume, emphasis, and speed. Always say commands in the language of the system. The language for the mobile phone voice ...

    Headphones, vehicle loudspeakers
    Connecting the headphones Normal headphones Connect via the jack 1/8"/3.5 mm, on the rear CD/DVD player. Infrared headphones Connection via the infrared interface on the lower edge of the s ...

    Video playback
    Country codes Playback The video image is displayed on the Control Display up to a speed of approx. 2 mph/3 km/h; in some countries, it is only displayed while the parking brake is set or th ...