Kia Optima: Automatic heating and air conditioning
The automatic climate control system is controlled by simply setting the desired temperature.
The Full Automatic Temperature Control (FATC) system automatically controls the heating and cooling system as follows;
1. Press the AUTO button. The modes, fan speeds, air intake and air-conditioning will be controlled automatically by setting the temperature.
2. Set the temperature control knob to the desired temperature.
If the temperature is set to the lowest setting (Lo), the air conditioning system will operate continuously.
3. To turn the automatic operation off, select any button or switch of the following:
• Mode selection button
• Air conditioning button
• Front windshield defroster
button
• Air intake control button
• Fan speed control switch
The selected function will be controlled manually while other functions operate automatically.
For your convenience and to improve the effectiveness of the climate control, use the AUTO button and set the temperature to 23°C (73°F).

✽ NOTICE
Never place anything over the sensor located on the instrument panel to ensure better control of the heating and cooling system.
Automatic climate control system
Manual heating and air conditioningHazard Warning Flasher
The hazard warning flasher causes the rear tail lights and front turn signal
lights to flash on and off, which serves as a warning to other drivers to exercise
caution when approaching or passin ...
Inspection
1.
Check the hands free remote control
switch for resistance between terminals in each switch position.
Switch
Connector
terminal
...
Armed stage
Park the vehicle and stop the engine. Arm the system as described below.
1. Remove the ignition key from the ignition switch and exit the vehicle.
2. Make sure that all doors (and tailgate) and engi ...