See also:

Recirculation/air quality system
Recirculation This function can be used to shut out exhaust fumes, smoke, etc., from the passenger compartment. The air in the passenger compartment is then recirculated, i.e., no air f ...

Alarm
The alarm is automatically armed whenever you lock your vehicle. When armed, the alarm continuously monitors a number of points on the vehicle. The following conditions will set off the alarm: ...

Faults in the system
If the information symbol illuminates and Park assist syst Service required is shown on the information display, this indicates that the system is not functioning properly and has been disengaged. ...