2003 Hyundai Sonata Owner's Manual

FEATURES OF YOUR HYUNDAI 1- 77
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.
B760A05Y-AAT
AIR FILTER (FOR EVAPORATOR AND
BLOWER UNIT) (If installed)
The air filter is located in the evaporator behind
the glove box.
It operates to prevent pollutants from entering
the car and to purify the air.
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 filter inspections 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

1- 78 FEATURES OF YOUR HYUNDAI
B750A02A-AATSTEREO SOUND SYSTEM
How Car Audio Works
AM and FM radio signals are broadcast from
transmitter towers located around your city.
They are intercepted by the radio antenna on
your car. This signal is then received by the
radio and sent to your car speakers.
When a strong radio signal has reached your
vehicle, the precise engineering of your audio
system ensures high quality reproduction.
However, in some cases the signal coming to
your vehicle is not strong and clear. This can be
due to factors such as the distance from the
radio station, closeness of other strong radio
stations or the presence of buildings, bridges or
other large obstructions in the area.AM broadcasts can be received at greater
distances than FM broadcasts. This is because
AM radio waves are transmitted at low fre-
quency. These long, low frequency radio waves
can follow the curvature of the earth rather than
travelling straight out into the atmosphere. In
addition, they curve around obstructions so that
they can provide better signal coverage.FM broadcasts are transmitted at high fre-
quency and do not bend to follow the earth's
surface. Because of this, FM broadcasts gen-
erally begin to fade at short distances from the
station. Also, FM signals are easily affected by
buildings, mountains, or other obstructions.
These can result in certain listening conditions
which might lead you to believe a problem exists
with your radio. The following conditions are
normal and do not indicate radio trouble:
Ionosphere
B750A02L
AM reception
Mountains
BuildingsUnobstructed
area FM radio station
B750A03L
Ionosphere FM reception
B750A01L
Obstructed areaIron bridges

FEATURES OF YOUR HYUNDAI 1- 79
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o Fading - As your car moves away from the
radio station, the signal will weaken and
sound will begin to fade. When this occurs,
we suggest that you select another stronger
station.
o Flutter/Static - Weak FM signals or large
obstructions between the transmitter and
your radio can disturb the signal causing
static or fluttering noises to occur. Reducing
the treble level may lessen this effect until the
disturbance clears.o Station Swapping - As a FM signal weakens,
another more powerful signal near the same
frequency may begin to play. This is be-
cause your radio is designed to lock onto the
clearest signal. If this occurs, select another
station with a stronger signal.
o Multi-Path Cancellation - Radio signals being
received from several directions can cause
distortion or fluttering. This can be caused by
a direct and reflected signal from the same
station, or by signals from two stations with
close frequencies. If this occurs, select
another station until the condition has passed.
B750B02Y-AATUsing a cellular phone or a two-way radio
When a cellular phone is used inside the vehicle,
noise may be produced from the audio equip-
ment. This does not mean that something is
wrong with the audio equipment. In such a case,
use the cellular phone at a place as far as
possible from the audio equipment.
CAUTION:When using a communication system such
a cellular phone or a radio set inside the
vehicle, a separate external antenna must
be fitted. When a cellular phone or a radio
set is used with an internal antenna alone,
it may interfere with the vehicle's electrical
system and adversely affect safe operation
of the vehicle.
WARNING:Don't use a cellular phone when you are
driving, you must stop at a safe place to use
a cellular phone.
!
B750A04L
B750A05L

1- 80 FEATURES OF YOUR HYUNDAI
H240A01O-GATSTEREO RADIO OPERATION (H240) (If Installed)
1. POWER ON/OFF, VOLUME Control Knob 5. BAND Selector
4. TUNE/SEEK Select Button
7. SCAN Button 6. PRESET Buttons
2. BASS/BALANCE Control Knob (BASS/BAL)3. TREBLE/FADER Control Knob (TREB/FAD)
K240A01TB

FEATURES OF YOUR HYUNDAI 1- 81
H240B03O-GAT1. POWER ON-OFF Control Knob
The radio unit may be operated when the ignition
key is in the "ACC" or "ON" position. Press the
knob to switch the power on. The LCD shows
the radio frequency in the radio mode or the tape
direction indicator in the tape mode. To switch
the power off, press the knob again.
VOLUME Control
Rotate the knob clockwise to increase the
volume and turn the knob counterclockwise to
reduce the volume.
2. BASS Control Knob
Press to pop the knob out and turn to the left or
right for the desired bass tone.
BAL (Balance Control) Knob
Pull the bass control knob further out. Turn the
control knob clockwise to emphasize right
speaker sound. (Left speaker sound will be
attenuated)
When the control knob is turned counterclock-
wise, left speaker sound will be emphasized.
(Right speaker sound will be attenuated)
3. TREB (Treble Control) Knob
Press to pop the knob out and turn to the left or
right for the desired treble tone.
FAD (Fader Control) Knob
Pull the treble control knob further out.
Turn the control knob counterclockwise to
emphasize front speaker sound. (Rear speaker
sound will be attenuated)
When the control knob is turned clockwise, rear
speaker sound will be emphasized.
(Front speaker sound will be attenuated)
4. TUNE (Manual) Select Button
Press the side or side to increase or to decrease
the frequency. Press either button and hold
down to continuously scroll. Release button
once the desired station is reached.
SEEK Operation
(Automatic Channel Selection)
Press the TUNE select button 1 sec or
more.Releasing will automatically tune to the
next available station with a beep sound.
When the ( ) side is pressed longer than 1
second, releasing will automatically tune to the
next higher frequency and when the ( ) side
is pressed longer than 1 second, releasing will
automatically tune to the next lower frequency.
5. BAND Selector
Pressing the button changes the AM, FM1
and FM2 bands. The mode selected is dis-
played on LCD.
6. PRESET STATION SELECT Button
Six (6) stations for AM, FM and FM2 respec-
tively can be preset in the electronic memory
circuit on this unit.
HOW TO PRESET STATIONS
Six AM and twelve FM stations may be pro-
grammed into the memory of the radio. Then, by
simply pressing the band select button and/or
one of the six station select buttons, you may
recall any of these stations instantly. To pro-
gram the stations, follow these steps:
o Press band selector to set the band for AM,
FM, or FM2.
o Select the desired station to be stored by
seek or manual tuning.
o Determine the preset station select button
you wish to use to access that station.
FM/AM

1- 82 FEATURES OF YOUR HYUNDAI
o Press the station select button for more than
two seconds. A select button indicator will
show in the display indicating which select
button you have depressed. The frequency
display will flash after it has been stored into
the memory with a beep sound. You should
then release the button, and proceed to
program the next desired station. A total of
18 stations can be programmed by selecting
one AM and two FM stations per button.
o When completed, any preset station may be
recalled by selecting AM, FM or FM2 band
and the appropriate station button.
7. SCAN Button
When the scan button is pressed, the frequency
will increase and the receivable stations will be
tuned in one after another, receiving each sta-
tion for 5 seconds. To stop scanning, press the
scan button again.

FEATURES OF YOUR HYUNDAI 1- 83
H240C01O-GATCASSETTE TAPE PLAYER OPERATION (H240) (If Installed)
3. TAPE PROGRAM Button
2. AUTO MUSIC SELECT Button
4. EJECT Button
1. FF/REW Button 6. TAPE SLOT
5. DOLBY SELECT Button
K240A01TB

1- 84 FEATURES OF YOUR HYUNDAI
H240A03O-GAT1. FF/REW Button
o The FF (fast forward tape winding) starts
when the button is pressed during the
PLAY or REW.
o The play starts when the button is press-
ed again during the FF.
o The REW (rewinding) starts when the bu-
tton is pressed during the PLAY or FF.
o The play starts when the button is press-
ed again during the REW.
2. AUTO MUSIC SELECT Button
Press the button to find the starting point of each
song in a prerecorded music tape.
The quiet space between songs (must have at
least a 4 sec. gap) can be accepted by the
AUTO MUSIC SELECT button.
o Pressing the button will play the beginn-
ing of the next music segment.
o Pressing the button will start replay at
the beginning of the music just listened to.
3. TAPE PROGRAM Button
This allows you to play the reverse side of the
tape by merely depressing the program button.
An arrow will appear in the display to show tape
direction.
NOTE:When tape operation is abnormal or ER8
fault code is displayed, press the eject
button more than 5 seconds to reset the
deck function.
4. EJECT Button
o When the EJECT button is pressed with the
cassette loaded, the cassette is ejected.
o When the EJECT button is pressed during
the FF/REW, the cassette is ejected.
5. DOLBY SELECT Button
If you get background noise during PLAY, you
can reduce this considerably by merely press-
ing DOLBY SELECT button.
If you want to release, press the button again.