See also:

Problems with the SmartKey
Problem Possible causes/consequences and Solutions You cannot lock or unlock the vehicle using the SmartKey. The SmartKey battery is discharged or nearly discharged. - ...

Tow-starting (emergency enginestarting)
Vehicles with automatic transmission must not be started by tow-starting. This could otherwise damage the transmission. ...

Deleting all music files
This function deletes all music files from the MUSIC REGISTER. The deletion procedure may take several minutes. In order to prevent malfunctions, do not use COMAND during this period. Select ...