Kia Optima: Defrost Button
Most of the air flow
is directed to the windshield with a small amount of air directed to the side window
defrosters.
When the defrost button is pressed the outside (fresh) air position will automatically selected and the air will be discharged through the windshield defrost vents. The air conditioning will automatically operate based on ambient temperature. If you don’t want the air-conditioning or outside (fresh) air position press the corresponding button to cancel the operation.
Air Conditioning Button

Push the A/C button to turn the air conditioning system on. The indicator light in the button will illuminate when the fan speed control knob is on. Push the button again to turn the air conditioning system off.
Air Flow Control (Mode Switch)
Air ConditioningHeating and Cooling System Off
Press the "OFF" button to stop the operation of the heating and cooling system. ...
Ignition switch position
LOCK
The steering wheel locks to protect against theft. (if equipped) The ignition
key can be removed only in the LOCK position.
When turning the ignition switch to the LOCK position, push the k ...
Adjustment
1.
After loosening the trunk lid
hinge (A) mounting bolt, adjust the trunk lid by moving it up or down, or
right or left.
2.
Adjust the trunk lid height by
turnin ...