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 ConditioningCruise Control
The cruise control system allows you to program the vehicle to maintain a constant
speed without resting your foot on the accelerator pedal.
With cruise control, you can set and automatically maint ...
Inspection
1.
Turn the ignition switch OFF.
2.
Disconnect the RCV control solenoid valve connector.
3.
Measure resistance between the valve terminals 1
...
Components and Components Location
Component Location
1. Fuel filler door open switch
2. Fuel filler door release actuator
...