Kia Optima 2017, Owner'S Manual, Page: 256 / 776

If the air conditioning and outside
(fresh) air position are not selected au‐
tomatically, adjust the corresponding
button manually. If the position is
selected, lower fan speed is adjusted to
a higher fan speed.
To defrost outside windshield
OJF045099
1. Set the fan speed to the highest
position.
2. Set the temperature to the ex‐
treme hot (HI) position.
3. Press the defroster button ( ).
4. The air conditioning will turn on ac‐
cording to the detected ambient
temperature and outside (fresh) air
position will be selected automati‐
cally.
Operation tips
• For maximum defrosting, set the
temperature control to the extreme
right/hot position and the fan speed
control to the highest speed.
• If warm air to the floor is desired
while defrosting or defogging, set the
mode to the floor-defrost position.
• Before driving, clear all snow and ice
from the windshield, rear window,
outside rear view mirrors, and all side
windows.
• Clear all snow and ice from the hood
and air inlet in the cowl grill to im‐
prove heater and defroster efficiency
and to reduce the probability of fog‐
ging up the inside of the windshield.
WARNING
n Windshield heating
(Continued)
(Continued)
Do not use the or position
during cooling operation in extreme‐
ly humid weather. The difference be‐
tween the temperature of the out‐
side air and the windshield could
cause the outer surface of the wind‐
shield to fog up, causing loss of visi‐
bility. In this case, set the mode se‐
lection to the position and fan
speed control to the lower speed.
Defogging logic (if equipped)
To reduce the possibility of fogging up
the inside of the windshield, the air in‐
take or air conditioning are controlled
automatically according to certain con‐
ditions such as or position. To
cancel or return to the defogging logic,
do the following.
Features of your vehicle
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