Toyota FORTUNER 2021 Owner's Manual page 330

328
5-1. Using the air conditioning system and defogger
Ventilation and air conditioning odors
To let fresh air in, set the air conditioning system to the outside air mode.
During use, various odors from inside and outside the vehicle may enter into
and accumulate in the air conditioning system. This may then cause odor to
be emitted from the vents.
To reduce potential odors from occurring:
It is recommended that the air conditioning system be set to outside air
mode prior to turning the vehicle off.
Air conditioning filter
P. 393
WARNING
To prevent the windshield from fogging up
Do not set
weather. The difference between the temperature of the outside air and
that of the windshield can cause the outer surface of the windshield to fog
up, blocking your vision.
Do not place anything on the instrument
panel which may cover the air outlets.
Otherwise, air flow may be obstructed,
preventing the windshield defoggers
from defogging.
NOTICE
To prevent battery discharge
Do not leave the air conditioning system on longer than necessary when the
engine is not running.
to during cool air operation in extremely humid