Kia Optima 2017, Owner'S Manual, Page: 244 / 776

Outside (fresh) air position
With the outside (fresh)
air position selected, air
enters the vehicle from
outside and is heated or
cooled according to the
function selected.
NOTICE
Prolonged operation of the heater in
the recirculated air position (without
air conditioning selected) may cause
fogging of the windshield and side
windows and the air within the pas‐
senger compartment may become
stale.
In addition, prolonged use of the air
conditioning with the recirculated air
position selected will result in exces‐
sively dry air in the passenger com‐
partment.
WARNING
• Continue using the climate control
system in the recirculated air posi‐
tion may allow humidity to in‐
crease inside the vehicle which
may fog the glass and obscure vis‐
ibility.
• Do not sleep in a vehicle with the
air conditioning or heating system
on. It may cause serious harm or
death due to a drop in the oxygen
level and/or body temperature.
• Continue using the climate control
system in the recirculated air posi‐
tion can cause drowsiness or
sleepiness, and loss of vehicle con‐
trol. Set the air intake control to
the outside (fresh) air position as
much as possible while driving.
Fan speed control
OJF045081
The ignition switch must be in the ON
position for fan operation.
The fan speed control knob allows you
to control the fan speed of the air flow‐
ing from the ventilation system. To
change the fan speed, turn the knob to
the right for higher speed or left for
lower speed.
Setting the fan speed control knob to
the 0 position turns off the fan.
Features of your vehicle
4-154