2010 Hyundai Sonata maintenance schedule

5
VEHICLE MAINTENANCE REQUIREMENTS8
F070G02A-AATo Brake FluidCheck brake fluid level in the brake fluid
reservoir. The level should be between
"MIN" and "MAX" marks on the side of the
reservoir. Use only hydraulic brake fluid
conforming to DOT 3 or DOT 4.F070F01A-AATo Brake Hoses and LinesVisually check for proper installation,
chafing, cracks, deterioration and any
leakage. Replace any deteriorated or
damaged parts immediately.
F070E06A-AATo Automatic Transaxle FluidThe fluid level should be in the “HOT”
range of the dipstick, after the engine and
transaxle are at normal operating
temperature. Check the automatic
transaxle fluid level with the engine running
and the transaxle in neutral, with the
parking brake properly applied. Use
HYUNDAI GENUINE ATF SP III, DIAMOND
ATF SP III, SK ATF SP III or other brands
meeting the SP III specification approved
by Hyundai Motor Co. when adding or
changing fluid. Using the wrong ATF may
result in damage to the ATM.
F070H01A-AATo Rear Brake Drums and Linings/
Parking BrakeCheck the rear brake drums and linings for
scoring, burning, leaking fluid, broken parts,
and excessive wear. Inspect the parking
brake system including the parking brake
lever and cables. For detailed service
procedures, refer to the Shop Manual.
F070C01A-AATo CoolantThe coolant should be changed at the
intervals specified in the maintenance
schedule.
F060J01A-AATo Spark PlugsMake sure to install new spark plugs of the
correct heat range.F060H01A-AATo Air Cleaner FilterA Genuine Hyundai air cleaner filter is
recommended when the filter is replaced.F060G01A-AATo Vapor Hose and Fuel Filler CapThe vapor hose and fuel filler cap should
be inspected at those intervals specified in
the maintenance schedule. Make sure that
a new vapor hose or fuel filler cap is correctly
replaced.
F070D01A-AATo Manual Transaxle OilInspect the manual transaxle oil according
to the maintenance schedule.NOTE:If the oil level is low, check for possible
leaks before adding oil. Do not overfill.
F060N02E-AATo Valve ClearanceInspect excessive valve noise and/or
engine vibration and adjust if necessary. A
qualified technician should perform the
operation.

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DO-IT-YOURSELF MAINTENANCE
7
!
3. Slide underneath the car and loosen
the drain plug by turning it counter-
clockwise with a wrench of the proper
size. Be sure that a drain pan is in
position to catch the oil as it drains out,
then remove the drain plug.
4. When the oil has stopped draining,
replace the drain plug using a new
gasket and retighten by turning it clock-
wise.
Oil pan drain plug tightening torque:
25.3 ~ 32.5 lb.ft (3.5 ~ 4.5 kgf.m)
HNF5006-1
(2.4L)
(3.3L)
The engine oil and filter should be changed
at those intervals specified in the
maintenance schedule in Section 5. If the
car is being driven in severe conditions,
more frequent oil and filter changes are
required.
The procedure for changing the oil and
filter is as follows:
1. Park the car on level ground and set the
parking brake. Start the engine and let
it warm up until the needle on the coolant
temperature gauge moves above the
lowest mark. Turn the engine off and
place the gear selector lever in "P" (au-
tomatic) or reverse gear (manual
transaxle).
2. Open the hood and remove the engine
oil filler cap.NOTE:Loosen the oil filter cap by turning it
counterclockwise to drain well the oil in
the oil filter (3.3L only).
WARNING:
Be very careful when draining the engine
oil as it may be hot enough to burn you!
HNF5005-1
G040B01NF

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9
G050B01A-AATRecommended Engine CoolantUse a high quality ethylene-glycol coolant
in a 50/50 mix with water. The engine
coolant should be compatible with
aluminum engine parts. Additional
corrosion inhibitors or additives should
not be used. The cooling system must be
maintained with the correct concentration
and type of engine coolant to prevent
freezing and corrosion. Never allow the
concentration of antifreeze to exceed the
60% level or go below the 35% level, or
damage to the cooling system may result.
For proper concentration when adding or
replacing the engine coolant, refer to the
following table.
G050C01NF-GATTo Check the Coolant LevelThe coolant level can be seen on the side
of the plastic coolant reservoir. The level of
the coolant should be between the "L" and
"F" lines on the reservoir when the engine
is warm with it at idle . If the level is below
the "L" mark, add engine coolant to bring
it up to "F". If the level is low, inspect for
coolant leaks and recheck the fluid level
frequently. If the level drops again, visit
your Hyundai dealer for an inspection and
diagnosis of the reason.
G050C01NFG050D01NF-GAT
To Change the Engine CoolantThe engine coolant should be changed at
those intervals specified in the vehicle
maintenance schedule in Section 5.
CAUTION:
o Engine coolant can damage the finish
of your car. If you spill engine coolant
on the car, wash it off thoroughly with
clean water.
o The engine in your vehicle has alumi-
num engine parts and must be
protected by an ethylene-glycol base
coolant to prevent corrosion and freez-
ing.
Do not use hard water. Hard water can
cause engine damage from corro-
sion, overheating or freezing.
!
1. Park the car on level ground, set the
parking brake and remove the radiator
cap when cool. Ambient
temperature
°F (°C)
5 (-15)
-13 (-25)
-31 (-35)
-49 (-45)
65%
60%
50%
40% 35%
40%
50%
60%Water Antifreeze
solution Engine Coolant concentration

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14
CAUTION:
o Radiator antifreeze (engine coolant)
should not be used in the washer
system because it will damage the
car's finish.
o The washer lever should not be pulled
and the washer should not be operated
if the washer reservoir is empty. This
can damage the washer fluid pump.
!
A good quality washer fluid should be
used to fill the washer reservoir. The fluid
level should be checked more frequently
during bad weather or whenever the
washer system is in more frequent use.
The capacity of the washer reservoir is 3.2
U.S. quarts (4.0 liters).
!
WARNING:
It is always better to check the transaxle
oil level when the engine is cool or cold.
If the engine is hot, you should exercise
great caution to avoid burning yourself
on hot engine or exhaust parts.
CHECKING THE TRANSAXLE
OIL (MANUAL)G100A02NF-AAT
HNF5010
Filler plug
Drain plug
Transaxle lubricant in the manual transaxle
should be checked at those intervals
specified in the vehicle maintenance
schedule in Section 5.Recommended OilUse only HYUNDAI GENUINE PARTS MTF
75W/85 (API GL-4) in the manual transaxle.Manual Transaxle Oil CapacityThe oil capacity of the manual transaxle is
1.8 U.S. quarts (1.75 liters).
!
WARNING:
o Windshield washer fluid agents con-
tain some amounts of alcohol and can
be flammable under certain circum-
stances. Do not allow sparks or flame
to contact the washer fluid or the
washer fluid reservoir. Damage to
the vehicle or its occupants could
occur.
o Windshield washer fluid is poisonous
to humans and animals. Do not drink
windshield washer fluid. Serious injury
or death could occur.
NOTE:It is recommended that the manual
transaxle fluid should be checked by an
authorized Hyundai Dealer.

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15
CHECKING THE TRANSAXLE
FLUID (AUTOMATIC)G110A01E-AATTransaxle fluid in the automatic transaxle
should be checked at those intervals
specified in the vehicle maintenance
schedule in Section 5.NOTE:Automatic transaxle fluid is basically
red in color. As driving distance in-
creases, the fluid color turns darkish red
gradually. It is a normal condition and
you should not judge the need to replace
based upon the changing color.
You must replace the automatic
transaxle fluid in accordance with
intervals specified in the vehicle
maintenance schedule in section 5.
!
G110B05A-AATRecommended Fluid
Your Hyundai automatic transaxle is
specially designed to operate with
HYUNDAI GENUINE ATF SP III, DIAMOND
ATF SP III, SK ATF SP III or other brands
meeting the SP III specification approved
by Hyundai Motor Co.. Damage caused
by a nonspecified fluid is not covered by
your new vehicle limited warranty.
CAUTION:
Use of aftermarket ATF additives may
cause damage to the automatic
transaxle.
Only use HYUNDAI GENUINE ATF SP III,
DIAMOND ATF SP III, SK ATF SP III or
other brands meeting the SP III specifi-
cation approved by Hyundai Motor Co..
If you are having your vehicle serviced
at a facility other than a Hyundai dealer,
verify that the correct ATF is used for
your vehicle.
!
G110C01NF-AATTransaxle Fluid CapacityThe fluid capacity of the automatic
transaxle is:
WARNING:
The transaxle fluid level should be
checked when the engine is at normal
operating temperature. This means that
the engine, radiator, radiator hose,
exhaust system etc., are very hot.
Exercise great care not to burn yourself
during this procedure.2.4L
3.3L
8.24 U.S. quarts (7.8 liters)
11.52 U.S. quarts (10.9 liters)

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17
CHECKING THE BRAKES!
G120B01A-AATChecking the Brake Fluid Level
WARNING:Use caution when handling brake fluid. It
can damage your vision if it gets into
your eyes. It will also damage your
vehicle's paint if spilled on it and not
removed immediately.
!
WARNING:
The cooling fan is controlled by engine
coolant temperature and may
sometimes operate even when the
engine is not running. 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 decreases, the fan
will automatically shut off. This is a
normal condition.
G120A01A-AAT
CAUTION:
Because brakes are essential to the
safe operation of the car, it is suggested
that they be checked and inspected by
your Hyundai dealer. The brakes should
be checked and inspected for wear at
those intervals specified in the vehicle
maintenance schedule in Section 5.
!
G120D01A-AATTo Check the Fluid LevelThe fluid level in the brake fluid reservoir
should be checked periodically. The level
should be between the "MIN" and "MAX"
marks on the side of the reservoir. If the
level is at or below the "MIN" mark, carefully
add fluid to bring it up to "MAX". Do not
overfill.G120C02A-AATRecommended Brake FluidUse only hydraulic brake fluid conforming
to DOT 3 or DOT 4 specifications in your
braking system. Follow the instructions
printed on the container.

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19
1. With the glove box open, remove the
stoppers on both sides to allow the
glove box to hang freely on the hinges.
ONF078014
CHANGING THE CLIMATE CON-
TROL AIR FILTERG170100AFDFilter inspectionIf the vehicle is operated in severely air-
polluted cities or on dusty rough roads for
a long period, the filter should be inspected
more frequently and replaced earlier. When
you replace the climate control air filter,
replace it by performing the following
procedure, and be careful to avoid
damaging other components.
Replace the filter according to the mainte-
nance Schedule.
2. Remove the support rod.
ONF078015
Filter replacement

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26
G240A01A-AATPOWER STEERING HOSESIt is suggested that you check the power
steering 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 crack-
ing, pulling, scuffing or worn spots.
Deterioration of the hose could cause
premature failure.
POWER STEERING FLUID
LEVELG230A01NF-AAT
Recommended FluidUse PSF-4 type fluidNOTE:Do not start the engine when the power
steering oil reservoir is empty.
ONF078007
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
conditions (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 conditions.
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 running. 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 decreases the fan
will automatically shut off. This is a
normal condition.G220B01NF-GATChecking Engine Cooling FanThe engine cooling fan should come on
automatically if the engine coolant
temperature is high or whenever the air
conditioning is in operation.