Kia K900: To defrost outside windshield
1.Set the fan speed to the highest position.
2.Set the temperature to the extreme hot (HI) position.
3.Press the defrost button ( 
).
4.The air conditioning will be turned on according to the detected ambient temperature and outside (fresh) air position will be selected automatically.
If the 
position is selected, lower
fan speed is adjusted to a higher fan speed.
To defog inside windshield
1.Set the fan speed to the desired position.
2.Select desired temperature.
3.Press the defrost button ( ).
4.The air conditioning will be turned on according to the detected ambient temperature
...
Defogging logic
To reduce the probability of fogging up the inside of the windshield, the air
intake or air conditioning are controlled automatically according to certain conditions
such as or
position. ...
See also:
Scheduled maintenance service
Follow Normal Maintenance Schedule if the vehicle is usually operated where none
of the following conditions apply. If any of the following conditions apply, follow
Maintenance Under Severe Usage ...
License plate lamp replacement
If the light bulb does not operate, we recommend the vehicle be checked by an
authorized K900 Kia dealer.
A skilled technician should check or repair the license plate light, for it may
affect ...
Windshield defrosting and defogging
WARNING
Windshield heating
Do not use the or
position during cooling operation in
extremely humid weather. The difference between the temperature of the outside air
and that of th ...