2004 Hyundai Sonata automatic

FEATURES OF YOUR HYUNDAI 1- 67
B670C01O-AATAir Intake Control
This is used to select fresh outside air or
recirculation inside air.
Fresh
Recirculation
With the " " mode selected, air enters the
vehicle from outside and is heated or cooled
according to the other functions selected.
With the " " mode selected, air from within
the passenger compartment is drawn through
the heating system and heated or cooled ac-
cording to the other functions selected.
NOTE:o It should be noted that prolonged opera-
tion of the heating system in " " mode
will give rise to fogging of the wind-
shield and side windows and the air
within the passenger compartment will
become stale. In addition prolonged use
of the air conditioning with the " " mode
selected may result in the air within the
passenger compartment becoming ex-
cessively dry.
o When the ignition switch is turned "ON"
the air intake control will change to " "
mode in floor, floor-defrost and defrost
position. This is normal operation.
But, the air intake control switch will
change to " " mode when the ignition
switch is turned "ON" with the MAX A/C
mode selected.
This is normal operation.
HEF-037A
B675C01Y-AATMAX A/C switch
HEF-037B
The MAX A/C mode is used to cool the inside of
the vehicle faster.
If the "MAX A/C" mode is selected. the A/C will
turn on automatically and " " mode will be
activated and air is discharged the face level
vents.
NOTE:When you change to another mode from
MAX A/C, the A/C and the air intake control
switch are set to the following chart.

FEATURES OF YOUR HYUNDAI 1- 69
Bi-Level
Air is discharged through the face vents and the
floor vents. This makes it possible to have
cooler air from the dashboard vents and warmer
air from the floor outlets at the same time.
Floor-LevelAir is discharged through the floor vents, wind-
shield defroster nozzle, side defroster nozzle
and side ventilator.
If the "Floor" mode is selected, the "Fresh"
mode will be activated.
HEF-046
Defrost-LevelAir is discharged through the windshield de-
froster nozzle, side defroster nozzle and side
ventilator.
If the "Defrost" mode is selected, the A/C will turn
on automatically and "Fresh" mode will be ac-
tivated to improve windshield defrosting.
NOTE:If the "Floor-Defrost" or "Defrost" mode is
selected, the air conditioning will not turn
off by pushing the A/C button.
If the air flow control is set to the defrost or
the floor-defrost mode, the A/C will be on
automatically and the A/C will not off until
the air flow control is set to the another
mode except the defrost mode and the
floor-defrost mode. Although the A/C
switch indicator is turned off, this is normal
operation.
HEF-047
HEF-045A
Floor-Defrost Level
Air is discharged through the windshield de-
froster nozzle, the floor vents, side defroster
nozzle and side ventilator.
If the "Floor-Defrost" mode is selected, the A/C
will turn on automatically and "Fresh" mode will
be activated.

1- 70 FEATURES OF YOUR HYUNDAI
B740A01S-AATAIR CONDITIONING SYSTEM
Air Conditioning Switch
The air conditioning is turned on or off by
pushing the A/C button on the heating/air con-
ditioning control panel.
HEF-041A B690A04Y-AAT
HEATING CONTROLS
For normal heating operation, set the air intake
control to the fresh air ( ) position and the air
flow control to the floor ( ) position.
For faster heating, the air intake control should
be set in the recirculate ( ) position.
If the windows fog up, set the air flow control to
the defrost ( ) position. The air intake control
will change to fresh mode automatically.
For maximum heat, move the temperature con-
trol to "Warm".
B740C01A-AATDe-Humidified Heating
For dehumidified heating:
o Turn on the fan control switch.
o Turn on the air conditioning switch. The air
conditioning indicator light should come on at
the same time.
o Set the air intake control to the fresh air
( ) position.
o Set the air flow control to the face ( )
position.
o Adjust the fan control to the desired speed.
o For more rapid action, set the fan at one of
the higher speeds.
o Adjust the temperature control to provide the
desired amount of warmth.

1- 72 FEATURES OF YOUR HYUNDAI
B970A01Y-AATAUTOMATIC HEATING AND COOLING
CONTROL SYSTEM (If installed)
Your Hyundai is equipped with an automatic
heating and cooling control system controlled
by simply setting the desired temperature.
TYPE B (With Air Quality System)
HEF-021
HEF-022 B970B03Y-GAT
Heating and Cooling Controls
1. Blower Fan Control Switch
2. AUTO (Automatic Control)Switch
3. OFF Switch
4. Display Window
5. Temperature Control
6. Defroster Switch
7. Rear Window Defroster Switch
8. Air Flow Control Switch
9. Air Conditioning Switch
10.Ambient Switch
11.Air lntake Control Switch
12.Air Quality System Switch (If installed)
TYPE A (Without Air Quality System)

FEATURES OF YOUR HYUNDAI 1- 73
B970C03L-AATAutomatic Operation
The FATC (Full Automatic Temperature Con-
trol) system automatically controls heating and
cooling as follows:
1. Push the "AUTO" switch. The indicator light
will illuminate confirming that the Face, Floor
and/or Bi-Level modes as well as the blower
speed and, air conditioner will be controlled
automatically.2. Push the "TEMP" button to set the desired
temperature.
The temperature will increase to the maxi-
mum 90°F(32°C) by pushing on the button.
Each push of the button will cause the tem-
perature to increase by 1°F(0.5°C).
The temperature will decrease to the mini-
mum 62°F(17°C) by pushing on the button.
Each push of the button will cause the tem-
perature to decrease by 1°F(0.5°C).
NOTE:If the battery has been discharged or dis-
connected, the temperature mode will reset
to Centigrade degrees.
This is a normal condition and you can
change the temperature mode from Centi-
grade to Fahrenheit as follows;
Press the TEMP down ( ) button 3 seconds
or more with the AMB button held down.
The display shows that the unit of tempera-
ture is adjusted to Centigrade or Fahrenheit
(°C
→ →→ →
→ °F or °F
→ →→ →
→ °C).
NOTE:Never place anything over the sensor which
is located on the instrument panel to en-
sure better control of the heating and cool-
ing system.
HEF-040HEF-033
HEF-237
Photo Sensor

1- 74 FEATURES OF YOUR HYUNDAI
HEF-024
B980B02Y-AATFan Speed Control Switch
The fan speed can be set to the desired speed
by pressing the appropriate fan speed control
button. The higher the fan speed is, the more air
is delivered. Pressing the "OFF" button turns off
the fan.
B670C01Y-AATAir Intake Control Switch
(Without A.Q.S)
This is used to select fresh outside air or
recirculation inside air.
To change the air intake control mode, (Fresh
mode, Recirculation mode) push the control
button.
FRESH MODE ( ) : The indicator light on the
button goes on when the air intake control is in
fresh mode.
RECIRCULATION MODE ( ) : The indicator
light on the button is illuminated when the air
intake control is in recirculation mode.
With the "Fresh" mode selected, air enters the
vehicle from the outside and is heated or cooled
according to the function selected.
B995A02Y-GATAMBIENT SWITCH
B980A01Y-AATMANUAL OPERATION
The heating and cooling system can be con-
trolled manually as well as by pushing buttons
other than the "AUTO" button. At this state, the
system sequentially works according to the
order of buttons selected.
The function of the buttons which are not se-
lected will be controlled automatically.
Press the "AUTO" button in order to convert to
automatic control of the system. Pressing the button displays the ambient tem-
perature on the LCD.
HEF-034
HEF-027

1- 76 FEATURES OF YOUR HYUNDAI
B980G02Y-GATAuto de-humidified control (If installed)
There is a humidity sensor on the package tray,
In case it is very humid inside the car. The air
conditioning is turned on automatically to control
the humidity.
Bi-Level
When selecting the "Bi-Level" mode, the indica-
tor light will come on and the air will be dis-
charged through the face vents and the floor
vents. This makes it possible to have cooler air
from the dashboard vents and warmer air from
the floor outlets at the same time.
Floor-LevelWhen selecting the "Floor-Level" mode, the
indicator light will come on and the air will be
discharged through the floor vents.
Floor-Defrost LevelWhen selecting the "Floor-Defrost" mode, the
indicator light will come on and the air will be
discharged through the windshield defrost vents
and the floor vents.
B980F02Y-AATDefrost Switch
When the "Defrost" button is pressed, the " "
mode will be automatically selected and the air
will be discharged through the windshield de-
frost vents. To assist in defrosting the air con-
ditioning will operate if ambient temperature is
higher than 38.3 F°(3.5°C) and automatically
turns off if the ambient temperature drops below
38.3 F°(3.5°C).
HEF-045HEF-046
HEF-035

FEATURES OF YOUR HYUNDAI 1- 77
NOTE:
o When the A/C is operated continuously on the floor-defrost level ( ) or defrost level ( ), it may cause
fog to form on the exterior windshield. If this occurs, set the air flow control to the face level position
( ) and fan speed control to the low position.
o In high humidity conditions, defrost position can be used with the A/C and the air intake in the ( )
position for increased defogging action. To remove interior fog on the windshield.
o Set the air flow control to the defrost ( ) position.
The air intake control will change to fresh mode
automatically.
o Set the temperature control at the desired position.
o Set the fan speed control between 1 and 4 position.To remove frost or exterior fog on the windshield;
o Set the air flow control to the defrost ( ) position.
The air intake control will change to fresh mode
automatically.
o Set the temperature control to warm.
o Set the fan speed control to position 3 or 4.
B720A08Y-AAT
DEFROSTING/DEFOGGING
B720A03Y
B720A04Y