Volvo XC40 2019 Owner's Manual page 194

CLIMATE
Table of air distribution options
The air distribution can be changed manually
if required. The following options are available
for setting.
Air distribution
If all air distribution buttons are deselected in manual mode, the climate control system returns to automatically regulated climate
control.
With manual climate control it is not possible to deselect all air distribution buttons.
Main air flow from the defroster vents. Some air flows from other air
vents.
Main air flow from the air vents in the instrument panel. Some air
flows from other air vents.
Main air flow from the air vents at the floor. Some air flows from other
air vents.
192
Purpose
Counteracts misting and icing in a cold and humid cli-
mate (to achieve this, fan level must not be low).
Provides efficient cooling in a hot climate.
Provides heat or cooling to the floor.