See also:

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

BMW X6: rear seats
The head restraints in the rear cannot be adjusted and cannot be removed. ...

Adjusting the ventilation temperature
This function can be used to adjust the air temperature for the upper body region. 1. "Settings" 2. "Climate" 3. "Driver ventilation" or "Front passenger vent ...