cooling Hyundai Sonata 2003 Owner's Manual

YOUR VEHICLE AT A GLANCE
1. Hood Release Lever
2. Instrument Panel Junction box
3. Multi-Function Light/Front Fog Light Switch
(If installed)
4. Steering Wheel Tilt Lever
5. Horn and Driver Airbag (If installed)
6. Windshield Wiper/Washer Switch
7. Hazard Warning Switch
8. Digital Clock
9. Audio System
10.Heating and Cooling Controls11.Passenger Air Bag (If installed)
12.Glove Box
13.Traction Control System (If installed)
14.Panel Brightness Control Knob (Rheostat Switch)
15.Cruise Control Switch (If installed)
16.Power Outlet
17.Ashtray
18.Cigarette Lighter
19.Shift Lever
20.Parking Brake Lever
21.Cup Holder
22.Center Console
CAUTION:When installing a container of liquid air freshener inside a vehicle, do not place it near the instrument cluster nor
on the instrument panel pad surface. If there is any leakage from the air freshener onto these areas (Instrument
cluster, instrument panel pad or air ventilator), it may damage these parts. If the liquid from the air freshener does
leak onto these areas, wash them with water immediately.
!
NOTE:Switch arrangements from No. 13 to No. 15 can be changed according to options.

1.FEA 1.FEA1.FEA 1.FEA
1.FEA
TURES OF TURES OF TURES OF TURES OF
TURES OF
Y YY Y
Y
OUR HYUND OUR HYUNDOUR HYUND OUR HYUND
OUR HYUND
AI AIAI AI
AI
Fuel Recommendations .............................................................................. 1-2
Breaking in Your New Hyundai .................................................................... 1-3
Key (Immobilizer system) ........................................................................... 1-3
Door locks (Theft-alarm system) ................................................................. 1-4
Power windows........................................................................................... 1-9
Seat..........................................................................................................1-10
Seat Belt ...................................................................................................1-16
Child restraint system ...............................................................................1-22
Supplemental restraint (AIRBAG) system .................................................1-28
Instrument cluster and indicator lights .......................................................1-34
Warning Light and Indicator .......................................................................1-35
Trip computer ............................................................................................1-40
Multi-Function Light Switch .......................................................................1-41
Windshield wiper/Washer Switch ...............................................................1-42
Sunroof.....................................................................................................1-47
Mirror........................................................................................................1-50
Homelink Mirror .........................................................................................1-53
Hood Release...........................................................................................1-59
Cruise control ............................................................................................1-62
Heating and cooling control .......................................................................1-65
Stereo sound system ................................................................................1-78
Audio system ............................................................................................1-80
Antenna..................................................................................................1-100
1

1- 38 FEATURES OF YOUR HYUNDAI
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B290A01A-AATENGINE COOLANT TEMPERATURE
GAUGE
WARNING:
Never remove the radiator cap when the
engine is hot. The engine coolant is under
pressure and could erupt and cause severe
burns. Wait until the engine is cool before
adding coolant to the reservoir.
The needle on the engine coolant temperature
gauge should stay in the normal range. If it
moves across the dial to "H" (Hot), pull over and
stop as soon as possible and turn off the engine.
Then open the hood and check the coolant
reservoir level and the water pump drive belt. If
you suspect cooling system trouble, have your
cooling system checked by a Hyundai dealer as
soon as possible.
B300A01A-AATSPEEDOMETER
Your Hyundai's speedometer is calibrated in
miles per hour (on the outer scale) and kilome-
ters per hour (on the inner scale).HEF-009HEF-008B
B280A01A-AATFUEL GAUGE
The needle on the gauge indicates the approxi-
mate fuel level in the fuel tank. The fuel capacity
is given in Section 9.
HEF-010 B270A01A-AAT
BRAKE PAD WEAR WARNING SOUND
The front disc brake pads have wear indicators
that should make a high-pitched squealing or
scraping noise when new pads are needed. The
sound may come and go or be heard all the time
when the vehicle is moving. It may also be heard
when the brake pedal is pushed down firmly.
Excessive rotor damage will result if the worn
pads are not replaced. See your Hyundai dealer
immediately.

FEATURES OF YOUR HYUNDAI 1- 65
1. Side Ventilator
2. Center Ventilator
3. Windshield Defrost Ventilator
B710A01Y-GATHEATING AND COOLING CONTROLB710A01A-AATVENTILATION
To operate the ventilation system:
o Set the air intake control at the fresh air
( ) position.
o To direct all intake air to the dashboard
vents, set the airflow control to the face ( )
position.
o Adjust the fan speed control to the desired
speed.
o Set the temperature control between "Cool"
and "Warm".
B710B01A-AATCenter Ventilator
The center ventilators are located in the middle
of the dashboard.
To change the direction of the airflow, turn the
control knob on the middle of the ventilator as
desired.
B710C01Y-AATSide Ventilator
The side vent knobs control the amount of
outside air entering the vehicle through the side
vents. These vents can also be closed,so no air
enters through the side vents. To change the
direction of the air flow, turn the control knobs
as desired.
HEF-042
1
231

1- 70 FEATURES OF YOUR HYUNDAI
To use the air conditioning to cool the interior:
o Set the side vent control to " ", to shut off
the outside air entry.
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-AATOPERATION 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.
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.
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-041
HEF-023A

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)
123 4 5
6 7 8 9 10 11
123
4
6 7 8 9 10 11 12
5

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
fresh mode.
RECIRCULATION MODE ( ) : The indica-tor
light on the button is illuminated when the air
intake control is 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 switch position).
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 shut-
ting 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

2- 14 DRIVING YOUR HYUNDAI
C160G01A-AATTo Keep Locks from Freezing
To keep the locks from freezing, squirt an
approved de-icer fluid or glycerine into the key
opening. If a lock is covered with ice, squirt it with
an approved de-icing fluid to remove the ice. If
the lock is frozen internally, you may be able to
thaw it out by using a heated key. Handle the
heated key with care to avoid burning the
fingers.
C160D01A-AAT
Check Battery and Cables
Winter puts additional burdens on the battery
system. Visually inspect the battery and cables
as described in Section 6. The level of charge
in your battery can be checked by your Hyundai
dealer or a service station.
C160F01A-AATCheck Spark Plugs and Ignition
System
Inspect your spark plugs as described in Sec-
tion 6 and replace them if necessary. Also
check all ignition wiring and components to be
sure they are not cracked, worn or damaged in
any way.
C160E01A-AATChange to "Winter Weight" Oil if
Necessary
In some climates it is recommended that a lower
viscosity "winter weight" oil be used during cold
weather. See Section 9 for recommendations.
If you aren't sure what weight oil you should use,
consult your Hyundai dealer.
C160C01A-AATUse High Quality Ethylene Glycol
Coolant
Your Hyundai is delivered with high quality
ethylene glycol coolant in the cooling system. It
is the only type of coolant that should be used
because it helps prevent corrosion in the cool-
ing system, lubricates the water pump and
prevents freezing. Be sure to replace or replen-
ish your coolant in accordance with the main-
tenance schedule in Section 5. Before winter,
have your coolant tested to assure that its
freezing point is sufficient for the temperatures
anticipated during the winter.
C160B01A-AATSnowy or Icy Conditions
To drive your vehicle in deep snow, it may be
necessary to use snow tires or to install tire
chains on your tires. If snow tires are needed,
it is necessary to select tires equivalent in size
and type of the original equipment tires. Failure
to do so may adversely affect the safety and
handling of your car. Furthermore, speeding,
rapid acceleration, sudden brake applications,
and sharp turns are potentially very hazardous
practices.
During deceleration, use engine braking to the
fullest extent. Sudden brake applications on
snowy or icy roads may cause skids to occur.
You need to keep sufficient distance between
the vehicle in operation in front and your vehicle.
Also, apply the brake gently. It should be noted
that installing tire chains on the tire will provide
a greater driving force, but will not prevent side
skids.
NOTE:Tire chains are not legal in all states. Check
state laws before fitting tire chains.