2010 Hyundai Sonata Owner's Manual

6
DO-IT-YOURSELF MAINTENANCE
27
FOR MORE INFORMATION
ABOUT YOUR HYUNDAIG250A01A-AATIf you desire additional information about
maintaining 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.
HEADLIGHT AIMING ADJUST-
MENTG290A03O-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 several 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
horizontal line (through the center of
each headlight beam pattern) on the
aiming screen measured from ground
to center mark on headlight lens.
7. Adjust the right side of each cut-off line
of the low beam to the horizontal line
with a phillips screwdriver - VERTICAL
AIMING.
WARNING:
Never attempt to adjust the horizontal
alignment 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.

6
DO-IT-YOURSELF MAINTENANCE
28
SPECIFICATION:"H"
Horizontal center line of headlights from
ground : 27.05 in. (687mm)
"W"
Distance between each headlight center :
51.5 in. (1,308mm)
"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 descrip-
tions.
!
CAUTION:
o Keep the lights out of contact with
petroleum 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
appear 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.
G290B01NF-AATAdjustment After Headlight Assem-
bly Replacement
G290B01NF
L
W
H
H
Cut-off line
Ground line
Horizontal lineVertical line
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 vertically so that cutoff
line is aligned with horizontal line shown
in the illustration.
2. Dotted lines in the illustration show the
center of the headlights.

6
DO-IT-YOURSELF MAINTENANCE
29
Replacement instructions:
1. Allow the bulb to cool. Wear eye
protection.
2. Open the engine hood.
3. Always grasp the bulb by its base, avoid
touching the glass.G270A01NF-AATHEADLIGHT, FRONT TURN SIGNAL
LIGHT AND FRONT FOG LIGHT
Headlight and Front Turn Signal
Light
ONF078024
Headlight (Low beam)
Turn signal light
Front position light
Front Fog LightHeadlight
(High beam)
ONF078023N
4. Using a socket wrench of the correct
size, remove the headlight assembly
mounting bolts and bumper mounting
bolt.
HNF5024
5. Disconnect the power cord from the
back of the headlight.

6
DO-IT-YOURSELF MAINTENANCE
30
HNF5027
9. Remove the protective cap from the
replacement bulb and install the new
bulb by matching the plastic base with
the headlight hole.Low Beam
OMG075038N
HNF5025
6. Turn the plastic cover counterclock-
wise and remove it.
ONF078026N
7. Disconnect the connector from the bulb
base in the back of the headlight.
8. Rotate the bulb counterclockwise to
remove the headlight bulb.

6
DO-IT-YOURSELF MAINTENANCE
31
12. To replace the front turn signal light
bulb remove it from the bulb holder
and install the new bulb.
!
WARNING:
This halogen bulb contains gas under
pressure and if impacted could shatter,
resulting 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 in-
stalling in a headlight. Replace the head-
light if damaged or cracked. Keep the
bulb out of the reach of children and
dispose of the used bulb with care.
HNF5028-1G270A03O
10. Use the protective cap and carton to
promptly dispose of the old bulb.
11. Check for proper headlight aim.
Front Fog Light (If installed)
NOTE:
It is recommended that the front fog light
bulb should be replaced by an authorized
Hyundai dealer.

6
DO-IT-YOURSELF MAINTENANCE
32
HNF5042
4. Loosen the mounting screws of the trunk
lid trim with a phillips screwdriver and
remove the trunk lid trim.
5. To replace the rear combination light
(back-up light and stop/tail light), re-
move the socket by turning it counter-
clockwise.
6. Install the new bulb.
3. To replace the rear combination light
(stop/tail light, rear side marker light
and rear turn signal light), remove it
from the bulb holder and install the new
bulb.
(1) Stop/tail light
(2) Rear side marker light
(3) Rear turn signal light
HNF5030-A
G270D02NF-AATREAR COMBINATION LIGHT
Stop/Tail Light, Rear Turn Signal
Light, Back-up Light and Rear Side
Marker Light1. Open the trunk lid.
2. Remove the cover on the inside of the
rear luggage trim.
ONF078028

6
DO-IT-YOURSELF MAINTENANCE
33
HNF5032
3. Disconnect the power cord.
HTB284
4. Replace with a new bulb.
G270C01L-AATLUGGAGE COMPARTMENT
LIGHT1. Open the trunk lid.
2. Remove the luggage compartment light
cover on the rear package tray panel
with a flat-head screwdriver.
HNF5031-A

6
DO-IT-YOURSELF MAINTENANCE
34
G270G01NF G270L01L-AAT
MAP LIGHT1. Remove the plastic cover with a flat-
head screwdriver.
G270G01L-AATINTERIOR LIGHT
HNF5034
1. Remove the plastic cover with a flat-
head screwdriver.
HNF5035
Screwdriver
2. Replace with a new bulb.