2004 Hyundai Sonata Owner's Manual

DO-IT-YOURSELF MAINTENANCE 6- 19
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If any of your car’s lights or other electrical
accessories stop working, a blown (open) fuse
could be the reason. If the fuse has opened, you
will see that the metal strip inside the fuse has
melted through. If you suspect a blown fuse,
follow this procedure:
1. Turn off the ignition and all other switches.
2. Open the instrument panel junction box and
examine each fuse. Remove each fuse by
pulling it toward you (a small "fuse puller" tool
is contained in the fuse box to simplify this
operation).
3. Be sure to check all other fuses even if you
find one that appears to have burned out.
4. Replace the blown fuse by pressing a new
fuse of the same rating into place. The fuse
should be a snug fit. If it is not, have the fuse
clip repaired or replaced by a Hyundai dealer.
HXGS416Fuse Puller
G210A01A-AATCHECKING THE BATTERY
WARNING:
Batteries can be dangerous! When working
with batteries, carefully observe the follow-
ing precautions to avoid serious injuries.
The fluid in the battery contains a strong solution
of sulfuric acid, which is poisonous and highly
corrosive. Be careful not to spill it on yourself or
the car. If you do spill battery fluid on yourself,
immediately do the following:
o If battery fluid is on your skin, flush the
affected areas with water for at least 15
minutes and then seek medical assistance.
o If battery fluid is in your eyes, rinse out your
eyes with water and get medical assistance
as soon as possible. While you are being
driven to get medical assistance, continue to
rinse your eyes by using a sponge or soft
cloth saturated with water.
o If you swallow battery fluid, drink a large
quantity of water or milk followed by milk of
magnesia, eat a raw egg or drink vegetable
oil. Get medical assistance as soon as
possible. If you do not have a spare fuse, you may be
able to borrow a fuse of the same or lower
rating from an accessory you can tempo-
rarily get along without (the radio or cigarette
lighter, for example). Always remember to
replace the borrowed fuse.
CAUTION:A burned-out fuse indicates that there is a
problem in the electrical circuit. If you re-
place a fuse and it blows as soon as the
accessory is turned on, the problem is
serious and should be referred to a Hyundai
dealer for diagnosis and repair. Never re-
place a fuse with anything except a fuse
with the same or a lower amperage rating.
A higher capacity fuse could cause damage
and create a fire hazard.
NOTE:See page 6-29 for the junction box descrip-
tions.
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G200B03Y
GoodOpen-Replace

6- 20 DO-IT-YOURSELF MAINTENANCE
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G230A03A-AATPOWER STEERING FLUID LEVEL
G220B01A-AATChecking Engine Cooling Fan
The engine cooling fan should come on auto-
matically if the engine coolant temperature is
high.
G220A01A-AATCHECKING ELECTRIC COOLING
FANS
G220C01A-AATChecking Condenser Cooling Fan
The condenser cooling fan should come on
automatically whenever the air conditioning is in
operation.
G210B02A-AATChecking the Battery
Keep the battery clean. Any evidence of corro-
sion around the battery posts or terminals
should be removed using a solution of house-
hold baking soda and warm water. After the
battery terminals are dry, cover them with a light
coating of grease. While batteries are being charged (either by a
battery charger or by the vehicle's generator),
they produce explosive gases. Always ob-
serve these warnings to prevent injuries from
occurring:
o Charge batteries only in a well ventilated
area.
o Do not permit flames, sparks or smoking in
the area.
o Keep children away from the area.
WARNING:The cooling fan is controlled by engine
coolant temperature and may sometimes
operate even when the engine is not run-
ning. Use extreme caution when working
near the blades of the coolant fan, so that
you are not injured by a rotating fan blade.
As the engine coolant temperature de-
creases the fan will automatically shut off.
This is a normal condition.
The power steering fluid level should be checked
regularly. To check the power steering fluid
level, be sure the engine is "OFF", then check
to make certain that the power steering fluid
level is between the "MAX" and "MIN" level
markings on the fluid reservoir.
NOTE:Grinding noise from the power steering
pump may be heard immediately after the
engine is started in extremely cold condi-
tions (below - 4°F). If the noise stops during
warm up, there is no abnormal function in
the system. It is due to a power steering
fluid characteristic in extremely cold condi-
tions.
G230A03Y
PROPOSITION 65 WARNING:Battery posts, terminals, and related acces-
sories contain lead and lead compounds,
chemicals known to the state of California
to cause cancer and reproductive harm.
Wash hands after handling.
!

DO-IT-YOURSELF MAINTENANCE 6- 21
G250A01A-AATFOR MORE INFORMATION ABOUT
YOUR HYUNDAI
If you desire additional information about main-
taining and servicing your Hyundai, you may
purchase a factory Shop Manual at your Hyundai
dealer's parts department. This is the same
manual used by dealership technicians and
while it is highly technical it can be useful in
obtaining a better understanding of your car and
how it works.
G240A01A-AATPOWER STEERING HOSES
It is suggested that you check the power steer-
ing hose connections for fluid leakage at regular
intervals. The power steering hoses should be
replaced if there is severe surface cracking,
scuffing or worn spots. Deterioration of the hose
could cause premature failure. Recommended Fluid
Use PSF-3 type fluid
NOTE:Do not start the engine when the power
steering oil reservoir is empty.
G260A02A-AATREPLACING HEADLIGHT BULBS
Before attempting to replace a headlight bulb, be
sure the switch is turned to the "OFF" position.
The next paragraph shows how to reach head-
light bulbs so they may be changed. Be sure to
replace the burned-out bulb with one of the
same number and wattage rating.
!CAUTION:Keep the lamps out of contact with petro-
leum products such as oil, gasoline etc.
G270A03Y-AAT
Headlight Bulb
1. Allow the bulb to cool. Wear eye protection.
2. Always grasp the bulb by its plastic base,
avoid touching the glass.
G270A03Y
HEF-224
HEF-228
3. Turn the plastic cover counterclockwise
and remove it. High Beam
Low Beam
High BeamLow Beam
Turn signal Light

6- 22 DO-IT-YOURSELF MAINTENANCE
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4. Disconnect the power cord from the bulb
base in the back of the headlight.
HEF-225
HEF-2291FJB5036HEF-226
HEF-230
WARNING:This halogen bulb contains gas under pres-
sure and if impacted could shatter, result-
ing in flying fragments. Always wear eye
protection when servicing the bulb. Protect
the bulb against abrasions or scratches
and against liquids when lighted. Turn the
bulb on only when installing in a headlight.
Replace the headlight if damaged or cracked.
Keep the bulb out of the reach of children
and dispose of the used bulb with care.
5. Push the bulb spring for removing the head-
light bulb.
High Beam
Low Beam
High Beam
Low Beam

DO-IT-YOURSELF MAINTENANCE 6- 23
HEF-227
6. Replace to the new bulb.
HEF-231
Low Beam
High BeamG270B01Y-AATFront turn signal Light
1. Take off the headlight module to remove
three bolts with a spanner.
HEF-221
HEF-222HEF-223
2. Disconnect the power code.3. Replace to the new bulb.

6- 24 DO-IT-YOURSELF MAINTENANCE
G270D01Y-AATRear Combination Light
1. Remove the cover with a (+) driver.
2. Replace to the new bulb.
HEF-242
HEF-220
(1)
(2)
(3)(1) Trun signal light
(2) Stop/Tail light
(3) Back-up light
G270E01Y-GATLuggage Compartment Light
1. Open the trunk lid.
2. Remove the cover with a (-) driver.
HEF-239G270E02L
HTB284
Screwdriver
3. Disconnect the power cord.
4. Replace to the new bulb.

DO-IT-YOURSELF MAINTENANCE 6- 25
G270E01TB-GATSide Repeater
1. Push the cover toward the front of vehicle
and remove it.
2. Disconnect the power code.
G270E01A
HTB277G270G01TB-GAT
Interior Light (If installed)
1. Reomove the cover with a (-) driver.
HEF-232
HEF-233
2. Replace to the new bulb.
HTB278
3. Replace to the new Bulb.

6- 26 DO-IT-YOURSELF MAINTENANCE
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G290A05Y-AATHEADLIGHT AIMING ADJUSTMENT
Before performing aiming adjustment, make
sure of the following.
1. Keep all tires inflated to the correct pressure.
2. Place the vehicle on level ground and press
the front bumper & rear bumper down sev-
eral times. Place vehicle at a distance of 118
in. (3m) from the test wall.
3. See that the vehicle is unloaded (except for
full levels of coolant, engine oil and fuel, and
spare tire, jack, and tools).
4. Clean the head light lenses and turn on the
headlights (Low beam).
5. Open the hood.
6. Draw the vertical line (through the center of
each headlight beam pattern) and the hori-
zontal line (through the center of each head-
light beam pattern) on the aiming screen.And then, draw the parallel line at 0.827 in. (21
mm) under the horizontal line.
7. Adjust each cut-off line of the low beam to the
parallel line with a phillips screwdriver -
VERTICAL AIMING
WARNING:Horizontal aiming should be adjusted by an
authorized Hyundai Dealer.
G290A03Y
G270H01Y-GATLicense plate Light
1. Reomove the cover with a (+) driver.
2. Replace to the new bulb.
HEF-235
HEF-236
Vertical
aiming