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 ConditioningUniform Tire Quality Grading
The following information relates to the tire grading system developed by the
National Highway Traffic Safety Administration (NHTSA) for grading tires by tread
wear, traction and temperature perfo ...
Day/Night Rearview Mirror
Adjust the rearview mirror to center on the view through the rear window. Make
this adjustment before you start driving and while the day/night lever is in the
day position.
Pull the day/night ...
Safety Belt Warning Light and Chime
As a reminder to the driver and passenger, safety belt warning light will blink
for approximately 6 seconds each time you turn the ignition switch ON.
If the driver's lap/shoulder belt is not f ...