Kia Optima: Mode selection
The mode selection button controls the direction of the air flow through the ventilation system.
Every time you press the mode selection button, the mode will change as follows:

Refer to the illustration in the “Manual climate control system”.
Face-Level
Air flow is directed toward the upper body and face. Additionally, each outlet can be controlled to direct the air discharged from the outlet.
Bi-Level
Air flow is discharged towards the face and floor.
Floor-Level
Most of the air flow is directed to the floor, with a small amount of the air being directed to the windshield and side window defroster.
Floor/Defrost-Level
Most of the air flow is directed to the floor and the windshield with a small amount directed to the side window defrosters.

Defrost-level
Most of the air flow is directed to the windshield with a small amount of air directed to the side window defrosters.

Instrument panel vents
The outlet vents can be opened or closed separately using the thumbwheel. Also, you can adjust the direction of air delivered from these vents using the vent control lever as shown.
Manual heating and air conditioning
Temperature controlAutomatic Operation
The FATC (Full Automatic Temperature Control) system automatically controls the
heating and cooling by doing as follows:
1. Push the "AUTO" switch. The indicator light will come on confir ...
Center High-Mounted Stoplight Bulb Replacement
1. Remove the cover and turn the bulb socket counterclockwise and remove it from
the housing.
2. Push the bulb in, then rotate it one- quarter turn counterclockwise and remove
the bulb from the ...
Power Steering
Power steering uses energy from the engine to assist you in steering the vehicle.
If the engine is off or if the power steering system becomes inoperative, the vehicle
may still be steered, but it ...