Hyundai Sonata

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.

FEATURES OF YOUR HYUNDAI 1- 71
To use the air conditioning to cool the interior:
o Turn on the fan control switch.
o Turn on the air conditioning switch by push-
ing in on the 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 temperature control to "Cool". ("Cool"
provides maximum cooling. The tempera-
ture may be moderated by moving the con-
trol toward "Warm".)
B730A03Y-AAT
OPERATION TIPS
o To keep dust or unpleasant fumes from
entering the car through the ventilation sys-
tem, temporarily set the air intake control at
the position. Be sure to return the control
to the position when the irritation has
passed to keep fresh air in the vehicle. This
will help keep the driver alert and comfort-
able.
o Air for the heating/cooling system is drawn
in through the grilles just ahead of the wind-
shield. Care should be taken that these are
not blocked by leaves, snow, ice or other
obstructions.
o To prevent interior fog on the windshield, set
the air intake control to the fresh air ( )
position and fan speed to the desired posi-
tion.
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 by the temperature differencial.
At this time set the air flow control to the face
level position ( ) and fan speed control to
the low position.
B740B01A-AATAir Conditioning Operation
(If installed)
Coolingo Adjust the fan control to the desired speed.
For greater cooling, turn the fan control to
one of the higher speeds or temporarily
select the recirculate ( ) position on the
air intake control.
HEF-023B

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

FEATURES OF YOUR HYUNDAI 1- 75
With the "Recirculation" mode selected, and air
from within the passenger compartment will be
drawn through the heating system and heated
or cooled according to the function selected.
NOTE:o It should be noted that prolonged opera-
tion of the heating system in "recircula-
tion" mode will give rise to 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 "Re-
circulation" mode selected may result in
the air within the passenger compart-
ment becoming excessively dry.
o When the ignition switch is turned "ON"
the air intake control will change to " "
mode (regardless of the switch posi-
tion). This is normal operation. The air
intake control operates in "AUTO" mode
when turning the ignition to the ON
position if the "AUTO" mode was used
before shutting off the engine.
B980D01Y-AATHeating and Cooling System Off
Press the "OFF" button to stop the operation of
the heating and cooling system.
B980E01Y-GATAir Flow Control
This is used to direct the flow of air. Air can be
directed to the floor, dashboard outlets, or
windshield. Four symbols are used to represent
Face, Bi-Level, Floor, Floor-Defrost position.
Face-LevelWhen selecting the "Face" mode, the indicator
light will come on, causing air to be discharged
through the face level vents.
HEF-025HEF-043
HEF-044

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

1- 78 FEATURES OF YOUR HYUNDAI
B760A06Y-AATAIR CONDITIONER FILTER (FOR
EVAPORATOR AND BLOWER UNIT)
(If installed)
The air conditioner filter is located in the evapo-
rator behind the glove box.
It operates to decrease pollutants the amount of
entering the car.
CAUTION:o Replace the filter every 12,000 miles
(20,000 km) or once a year.
If the car is being driven in severe condi-
tions such as dusty, rough roads, more
frequent air conditioner filter inspec-
tions and changes are required.
o When the air flow rate is suddenly de-
creased, it must be checked at an autho-
rized dealer.
o If your vehicle is not equipped with this
filter, it can be installed by your dealers.
Check with your dealer for details.
!
B740D01Y-AATOperation Tips
o If the interior of the car is hot when you first
get in, open the windows for a few minutes
to expel the hot air.
o When you are using the air conditioning
system, keep all windows closed to keep hot
air out.
o When moving slowly, as in heavy traffic, shift
to a lower gear. This increases engine speed,
which in turn increases the speed of the air
conditioning compressor.
o On steep grades, turn the air conditioning off
to avoid the possibility of the engine over-
heating.
o During winter months or in periods when the
air conditioning is not used regularly, run the
air conditioning once every month for a few
minutes. This will help circulate the lubri-
cants and keep your system in peak oper-
ating condition.
B760A01Y
Inside of a
vehicle
Evaporator coreFilterBlowerOutside air
Inside air