2007 Hyundai Sonata Owner's Manual

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Drive belts should be checked periodically for
proper tension. At the same time, belts should
be examined for cracks, wear, fraying or other
evidence of deterioration and replaced if neces-
sary.
When a new belt is replaced, the belt should be
located within the pulley of flat idler.
Belt routing should also be checked to be sure
there is no interference between the belts and
other parts of the engine.
NOTE:Drive belt tension is adjusted automatically
by the auto tensioner.
CHECKING AND REPLACING
FUSESG200A01A-AATReplacing a Fusible LinkA fusible link will melt if the electrical circuits from
the battery are ever overloaded, thus prevent-
ing damage to the entire wiring harness. (This
could be caused by a short in the system
drawing too much current.) If this ever happens,
have a Hyundai dealer determine the cause,
repair the system and replace the fusible link.
The fusible links are located in a relay box in the
engine compartment for easy inspection.
HNF4004
!
CAUTION:
When replacing a fusible link, never use
anything but a new fusible link with the
same or lower amperage rating. Never use
a piece of wire or a higher-rated fusible link.
This could result in serious damage and
create a fire hazard.

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2. Open the fuse box and examine each fuse.
Remove each fuse by pulling it toward you
(a small "fuse puller" tool is contained in the
relay and fuse box of the engine room to
simplify this operation).
3. Be sure to check all other fuses, even if you
G200B02NF
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.
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.
!
G200B02L
GoodBurned outCAUTION:
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 6-36 for the fuse panel descrip-
tions.
G200B01NF-AATReplacing Accessory Fuse
G200B01NF-A
The fuse box for the lights and other electrical
accessories will be found on the left side of the
instrument panel. Inside the box you will find a
list showing the circuits protected by each fuse.
If any of your car's lights or other electrical
accessories stop working, a blown fuse could
be the reason. If the fuse has burned out, you
will see that the metal strip inside the fuse has
burned through. If you suspect a blown fuse,
follow this procedure:
1. Turn off the ignition and all other switches.

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CHECKING THE BATTERY!
G210A01A-AAT
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:
HNF5017
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.
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.
!
G210B04A-AATChecking the BatteryKeep 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.
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.
Batteries also contain other chemicals
known to the state of California to cause
cancer. Wash hands after handling.

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!
!
WARNING:Always read the following in-
structions carefully when han-
dling a battery.
Keep lighted cigarettes and all
other flames or sparks away from
the battery.
Hydrogen, which is a highly com-
bustible gas, is always present in
battery cells and may explode if
ignited.
Keep batteries out of the reach of
children because batteries con-
tain highly corrosive SULFURIC
ACID. Do not allow battery acid
to contact your skin, eyes, cloth-
ing or paint finish.
If any electrolyte gets into your
eyes, flush your eyes with clean
water for at least 15 minutes and
get immediate medical attention.
If possible, continue to apply
water with a sponge or cloth until
medical attention is received.If electrolyte gets on your skin,
thoroughly wash the contacted
area.
If you feel a pain or a burning
sensation, get medical attention
immediately.
Wear eye protection when charg-
ing or working near a battery.
Always provide ventilation when
working in an enclosed space.
o When lifting a plastic-cased battery, ex-
cessive pressure on the case may cause
battery acid to leak, resulting in personal
injury. Lift with a battery carrier or with
your hands on opposite corners.
o Never attempt to charge the battery when
the battery cables are connected.
o The electrical ignition system works with
high voltage.
Never touch these components with the
engine running or the ignition switched
on.
WARNING:
CHECKING ELECTRIC COOLING
FANS!
G220A01A-AAT
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 cooling 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.G220B01NF-GATChecking Engine Cooling FanThe engine cooling fan should come on auto-
matically if the engine coolant temperature is
high or whenever the air conditioning is in
operation.

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FOR MORE INFORMATION ABOUT
YOUR HYUNDAI
G240A01A-AATPOWER STEERING HOSESIt is suggested that you check the power steer-
ing hose connections for fluid leakage at those
intervals specified in the vehicle maintenance
schedule in Section 5.
The power steering hoses should be replaced
if there is severe surface cracking, pulling,
scuffing or worn spots. Deterioration of the hose
could cause premature failure.
POWER STEERING FLUID LEVELG230A01NF-AAT
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.
Recommended Fluid
Use PSF-4 type fluidNOTE:Do not start the engine when the power
steering oil reservoir is empty.
G230A01NFG230A02NF
(2.4L)(3.3L)
G250A01A-AATIf 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.
The power steering fluid level should be checked
regularly. To check the power steering fluid
level, be sure the engine is "OFF", then check

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HEADLIGHT AIMING ADJUSTMENTG290A03O-AATBefore 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). Have the driver
or equivalent weight placed in driver's seat.
4. Clean the headlight lenses and turn on the
headlights (Low beam).
5. Open the hood.
G290A01NF-A
Vertical
aiming
!
6. Draw a vertical line (through the center of
each headlight beam pattern) and a horizon-
tal line (through the center of each headlight
beam pattern) on the aiming screen.
And then, draw a parallel line at 0.8 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:
Never attempt to adjust the horizontal align-
ment of your headlights. Horizontal aiming
must be adjusted by an authorized Hyundai
dealer to avoid incorrect alignment that will
reduce the effectiveness of your headlights.
G290B01NF-AATAdjustment After Headlight Assembly
Replacement
G260B01GK
L
W
H
H
Cut-off line
Ground line
"P"
Horizontal line
Vertical line
0.8 in.(21 mm)
If the vehicle has had front body repair and the
headlight assembly has been replaced, the
headlight aiming should be checked using the
aiming screen as shown in the illustration. Turn
on the headlight switch (Low Beam Position).
1. Adjust headlights so that main axis of light is
parallel to the center line of the body and is
aligned with point "P" shown in the illustration.
2. Dotted lines in the illustration show the center
of the headlights.

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SPECIFICATION:"H"
Horizontal center line of headlights from ground
: 26.73 in. (679mm)
"W"
Distance between each headlight center :
51.41 in. (1,306mm)
"L"
Distance between the headlights and the wall
that the lights are tested against : 118.11 in.
(3,000 mm)
REPLACEMENT OF LIGHT BULBSG260A02L-GATBefore attempting to replace a light bulb, be sure
the switch is turned to the "OFF" position.
The next paragraph shows how to reach the
light bulbs so they may be changed. Be sure to
replace the burned-out bulb with one of the
same number and wattage rating.
See page 6-35 for the wattage descriptions.
!
CAUTION:
o Keep the lights out of contact with pe-
troleum products, such as oil, gasoline,
etc.
o Be sure to replace the LED type equipped
bulbs with an assembly.
o After heavy, driving rain or washing,
headlight and taillight lenses could ap-
pear frosty. This condition is caused by
the temperature difference between the
lamp inside and outside. This is similar
to the condensation on your windows
inside your vehicle during the rain and
doesn’t indicate a problem with your
vehicle. If the water leaks into the lamp
bulb circuitry, have the vehicle checked
by an Authorized Hyundai Dealer.
Replacement instructions:
1. Allow the bulb to cool. Wear eye protection.
2. Open the engine hood.
3. Always grasp the bulb by its plastic base,
avoid touching the glass.G270A01NF-AATHEADLIGHT, FRONT TURN SIGNAL
LIGHT AND FRONT FOG LIGHT
Headlight and Front Turn Signal Light
Headlight
(High beam)Headlight
(Low beam)
Turn signal light
(Front position light)
G260A01NF-A
Front Fog Light

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HNF5023
4. Using a socket wrench of the correct size,
remove the headlight assembly mounting
bolts.
HNF5024
5. Disconnect the power cord from the back of
the headlight.
HNF5025
6. Turn the plastic cover counterclockwise
and remove it.
HNF5026
7. Disconnect the connector from the bulb base in
the back of the headlight.
8. Push the bulb spring to remove the headlight
bulb.