See also:

Malfunction
A message is displayed in the instrument cluster. HDC is not available, e.g., due to elevated brake temperatures. ...

Coolant temperature
Should the coolant, and with it the engine, become too hot, a Check Control message is displayed. Check the coolant level. ...

Notes
Reception may not be available in some situations, such as under certain environmental or topographic conditions. The satellite radio has no influence on this. The signal may not be avai ...