See also:

Low battery voltage
If the battery voltage is too low, the parking brake cannot be applied or released. Connect an auxiliary battery if the battery voltage is too low, see page 114. ...

Sound settings
Call volume Call volume can be adjusted while a call is in progress using the buttons in the steering wheel keypad. Audio system volume When PHONE is displayed, volume for the audio system can be ...

Random
This function plays the audio files on the external device in random order (shuffle). This function can be activated/deactivated under: Bluetooth menu Random Press the buttons on the cente ...