Automatic climate control system

1. Temperature control knob
1. Temperature control knob 2. AUTO (automatic control) button 3. Fan speed control knob 4. Mode selection button 5. OFF button
6. Front windshield defrost button 7. Rear windshield defrost button 8. Air intake control button 9. Air conditioning button 10. Display

Automatic heating and air conditioning


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. Push the AUTO button. It is indicated by AUTO on the display. The modes, fan speeds, air intake and air-conditioning will be controlled automatically by temperature setting.

2. Push the temperature control button to set 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, press any button except temperature control button. If you press the mode selection button, air-conditioning button, defrost button, air intake control button or fan speed button, the selected function will be controlled manually while other functions operate automatically.

Regardless of the temperature setting, when using automatic operation, the air conditioning system can automatically turn on to decrease the humidity inside the vehicle, even if the temperature is set to warm.

NOTICE:


NOTICE:


Never place anything over the sensor located on the instrument panel to ensure better control of the heating and cooling system.

Manual heating and air conditioning

The heating and cooling system can be controlled manually by pushing buttons other than the AUTO button. In this case, the system works sequentially according to the order of buttons selected.

When pressing any button (or turning any knob) except AUTO button while automatic operation, the functions not selected will be controlled automatically.

1. Start the engine.

2. Set the mode to the desired position.

3. Set the temperature control to the desired position.

4. Set the air intake control to the outside (fresh) air position.

5. Set the fan speed control to the desired speed.

6. If air conditioning is desired, turn the air conditioning system on.

Press the AUTO button in order to convert to full automatic control of the system.

Mode selection


Mode selection

The mode selection button controls the direction of the air flow through the ventilation system.

Refer to the illustration in the “Manual climate control system”.

The air flow outlet port is converted as follows:


Face-Level (B, D)


Face-Level (B, D)

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 (B, D, C)


Bi-Level (B, D, C)

Air flow is discharged towards the face and floor.

Floor-Level (C, A, D)


Floor-Level (C, A, D)

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 (A, C, D)


Floor/Defrost-Level (A, C, D)

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 (A, D)


Defrost-level (A, D)

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


Instrument panel vents

The outlet port can be opened or closed separately using the horizontal thumbwheel.

To close the vent, rotate it to the far left position. To open the vent, rotate it right to the desired position.

Also, you can adjust the direction of air delivered from these vents using the vent control lever as shown.

Temperature control


Temperature control

The temperature will increase to the maximum (HI) by turning the knob all the way to the right.

The temperature will decrease to the minimum (Lo) by turning the knob all the way to the left.

When turning the knob, the temperature will increase or decrease by increments of 0.5°C/1°F. When set to the lowest temperature setting, the air conditioning will operate continuously.

Temperature conversion

If the battery has been discharged or disconnected, the temperature mode display will reset to Centigrade.

This is normal condition. You can switch the temperature mode between Centigrade to Fahrenheit as follows; While depressing the AUTO button, depress the OFF button for 3 seconds or more. The display will change from Centigrade to Fahrenheit, or from Fahrenheit to Centigrade.

Air intake control


Air intake control

This is used to select outside (fresh) air position or recirculated air position.

To change the air intake control position, push the control button.

Recirculated air position


Recirculated air position

The indicator light on the button illuminates when the
recirculated air position is selected.

With the recirculated air position selected, air from passenger compartment will be
drawn through the heating system and heated or cooled according to the function selected.

Outside (fresh) air position


Outside (fresh) air position

The indicator light on the button illuminates when the outside (fresh) air position is
selected.

With the outside (fresh) air position selected, air enters the vehicle from outside and is heated or cooled according to the function selected.

NOTICE:


It should be noted that prolonged operation of the heating in recirculated air position will cause fogging of the windshield and side windows and the air within the passenger compartment will become stale.

In addition, prolonged use of the air conditioning with the recirculated air position selected, will result in excessively dry air in the passenger compartment.

WARNING:


• Continued use of the climate control system operation in the recirculated air position may allow
humidity to increase inside vehicle which may fog the glass and obscure visibility.

• Do not sleep in a vehicle with air conditioning or heating system on.

It may cause serious harm or death due to a drop in the oxygen level and/or body temperature.

• Continued use of the climate control system operation in the reciruclated air position can cause
drowsiness or sleepiness, and loss of vehicle control. Set the air intake control to the outside (fresh) air position as much as possible while driving.

Fan speed control


Fan speed control

The fan speed can be set to the desired speed by turning the fan speed control knob.

The higher the fan speed is, the more air is delivered.

Pressing the OFF button turns off the fan.

Air conditioning


Air conditioning

Push the A/C button to turn the air conditioning system on (indicator light will illuminate).

Push the button again to turn the air conditioning system off.

OFF mode


OFF mode

Push the OFF button to turn off the air climate control system. However you can still operate the mode and air intake buttons as long as the ignition switch is in the position ON.

    See also:

    Antenna
    Roof type antenna (if equipped) If your vehicle has an audio system, an amplifying antenna is installed in your vehicle. This antenna can be removed from the vehicle when you wash your vehicle. ...

    Vehicle identification number (VIN)
    The vehicle identification number (VIN) is the number used in registering your vehicle and in all legal matters pertaining to its ownership, etc. The number is punched on the floor under the fr ...

    Price Ranges
    The base Optima LX is priced at $16,355 with a 4-cylinder engine and 5-speed manual transmission and an extra $1,295 with a 5-speed automatic. An LX V6 costs $19,345 and comes only with the automa ...