See also:

Requirements
▷ Subscription to the optional Convenience Plan. ▷ The date setting on the Control Display is current. ▷ The vehicle is located within wireless network coverage. ...

What to do if...
Information on suitable mobile phones The mobile phone could not be paired or connected. ▷ Is Bluetooth activated in the vehicle and on the mobile phone? Activate Bluetooth in the vehicle ...

Releasing the parking brake manually
In the event of an electrical power loss or electrical malfunction, you can release the parking brake manually. Secure the vehicle against rolling Before releasing the parking brake manually, ...