See also:

Recommendations for ventilation and air conditioning
In order for these systems to be fully effective, follow the operation and maintenance guidelines below: To obtain an even air distribution, take care not to obstruct the exterior air intake ...

Other adjustments
4. Head restraint height adjustment. ...

Remote control
Note: The simultaneous use of other high frequency equipment (mobile telephones, domestic alarms, etc.) may momentarily hinder the operation of the remote control. If there is a permanent fault, ...