2008 Hyundai Sonata maintenance schedule

2
DRIVING YOUR HYUNDAI
10
!
C090I03L-GAT
CAUTION:
o Shift into "R", "D" and "P" position only
when the vehicle has completely
stopped.
o Do not accelerate the engine in reverse
or any of the forward positions with the
brakes applied.
o Always apply the footbrake when shift-
ing from "P" or "N", to "R" or "D"position.
o Do not use the "P" (Park) position in
place of the parking brake. Always set
the parking brake, shift the transaxle
into "P" (Park) position and turn off the
ignition when you leave the vehicle, even
momentarily. Never leave the vehicle
unattended while the engine is running.
o When accelerating from a stop on a
steep hill, the vehicle may have a ten-
dency to roll backwards. Shifting the
shift lever into 2nd gear while in Sport
mode will help prevent the vehicle from
rolling backwards.
o Check the automatic transaxle fluid level
regularly, and add fluid as necessary.
o See the maintenance schedule for the
proper fluid recommendation.
C090H01L-GATNOTE:o For smooth and safe operation, depress
the brake pedal when shifting from "Neu-
tral" position or "Park" position to a
forward or reverse gear.
o The ignition key must be in the "ON"
position and the brake pedal fully de-
pressed in order to move the shift lever
from the "P" (Park) position to any of the
other positions.
o It is always possible to shift from "R",
"N", or "D" position to "P" position. The
vehicle must be fully stopped to avoid
transaxle damage. o To maintain the required levels of ve-
hicle performance and safety, the sys-
tem may not execute certain gearshifts
when the selector lever is operated.
o Before driving away from a stop on a
slippery road, push the selector lever
forward into the +(UP) position. This
causes the transaxle to shift into 2nd
gear which is better for smooth driving
away on a slippery road. Push the selec-
tor lever to the -(DOWN) side to shift
back to 1st gear.
C090J01NF-GATSHIFT LOCK RELEASE (If Installed)If you cannot move the shift lever from the "P"
(Park) position to any other position with the
brake pedal fully depressed and the ignition key
in the "ON" position, remove the cap on the
console and with a thin object such as a flat-
head screwdriver, push the shift lock release
button down. Then, with the brake pedal de-
pressed, move the shift lever to the desired
position, and then the shift lock release button
will automatically return to its original position
after shifting from the "P" (Park) position. Then,
reinstall the cap.
If you need to use the shift lock release, it could
mean your car is developing a problem. Have
the car checked by your Hyundai dealer.
C090J01NF

2
DRIVING YOUR HYUNDAI
16
o Remember, your Hyundai does not require
extended warm-up. After the engine has
started, allow the engine to run for 10 to 20
seconds prior to placing the vehicle in gear.
In very cold weather, however, give your
engine a slightly longer warm-up period.
o Don't "lug" or "over-rev" the engine. Lugging
is driving too slowly in too high a gear result-
ing in the engine bucking. If this happens,
shift to a lower gear. Over-revving is racing
the engine beyond its safe limit. This can be
avoided by shifting at the recommended
speeds.
o Use your air conditioning sparingly. The air
conditioning system is operated by engine
power so your fuel economy is reduced
when you use it. o Be sure that the wheels are aligned cor-
rectly. Improper alignment can result from
hitting curbs or driving too fast over irregular
surfaces. Poor alignment causes faster tire
wear and may also result in other problems
as well as greater fuel consumption.
o Keep your car in good condition. For better
fuel economy and reduced maintenance
costs, maintain your car in accordance with
the maintenance schedule in Section 5. If
you drive your car in severe conditions,
more frequent maintenance is required (see
Section 5 for details).
o Keep your car clean. For maximum service,
your Hyundai should be kept clean and free
of corrosive materials. It is especially impor-
tant that mud, dirt, ice, etc. not be allowed to
accumulate on the underside of the car. This
extra weight can result in increased fuel
consumption and also contribute to corro-
sion.
o Travel lightly. Don't carry unnecessary
weight in your car. Weight reduces fuel
economy.
o Don't let the engine idle longer than neces-
sary. If you are waiting (and not in traffic),
turn off your engine and restart only when
you're ready to go.
DRIVING FOR ECONOMYC140A02A-AATYou can save fuel and get more miles from your
car if you follow these suggestions:
o Drive smoothly. Accelerate at a moderate
rate. Don't make "jack-rabbit" starts or full-
throttle shifts and maintain a steady cruising
speed. Don't race between stoplights. Try to
adjust your speed to that of the other traffic
so you don't have to change speeds unnec-
essarily. Avoid heavy traffic whenever pos-
sible. Always maintain a safe distance from
other vehicles so you can avoid unneces-
sary braking. This also reduces brake wear.
o Drive at a moderate speed. The faster you
drive, the more fuel your car uses. Driving at
a moderate speed, especially on the high-
way, is one of the most effective ways to
reduce fuel consumption.
o Don't "ride" the brake or clutch pedal. This
can increase fuel consumption and also
increase wear on these components. In
addition, driving with your foot resting on the
brake pedal may cause the brakes to over-
heat, which reduces their effectiveness and
may lead to more serious consequences.
o Take care of your tires. Keep them inflated
to the recommended pressure. Incorrect
inflation, either too much or too little, results
in unnecessary tire wear. Check the tire
pressures at least once a month.

5
Maintenance Intervals ................................................... 5-2
Scheduled Maintenance ................................................ 5-4
Maintenance under Severe Usage Conditions ............. 5-6
Explanation of Scheduled Maintenance Items .............. 5-7
California Perchlorate Notice......................................5-10VEHICLE MAINTENANCE REQUIREMENTS
5

5
VEHICLE MAINTENANCE REQUIREMENTS2
F010C01A-AATSpecified Scheduled ProceduresThese are the procedures such as inspections,
adjustments and replacements that are listed in
the maintenance charts starting on page 5-4.
These procedures must be performed at the
intervals shown in the maintenance schedule to
assure that your warranty remains in effect.
Although it is strongly recommended that they
be performed by the trained technicians at your
Hyundai dealer, these procedures may be per-
formed at any qualified service facility.
It is suggested that genuine Hyundai service
parts be used for any required repairs or re-
placements. Other parts of equivalent quality
such as engine oil, engine coolant, manual or
auto transaxle oil, brake fluid and so on which
are not supplied by Hyundai Motor Company or
its distributor may be used without affecting
your warranty coverage but you should always
be sure these are equivalent to the quality of the
original Hyundai parts. Your Owner's Hand-
book provides further information about your
warranty coverage.
F010A01A-AATService RequirementsTo ensure that you receive the greatest number
of miles of satisfying operation from your Hyundai,
certain maintenance procedures must be per-
formed. Although careful design and engineer-
ing have reduced these to a minimum, those that
are required are of the utmost importance.
It is your responsibility to have these mainte-
nance procedures performed to comply with
the terms of the warranties covering your new
Hyundai. The Owner's Handbook supplied with
your new vehicle provides further information
about these warranties.
F010B01A-AATMaintenance RequirementsThe maintenance required for your Hyundai
can be divided into three main areas:
o Specified scheduled procedures
o General checks
o Do-it-yourself maintenance
MAINTENANCE INTERVALS

5
VEHICLE MAINTENANCE REQUIREMENTS
3
SCHEDULED MAINTENANCE
REQUIREMENTSF020A02Y-AATo Inspection should be performed any time a
malfunction is experienced or suspected.
o Receipts for all emission control system
services should be retained to demonstrate
compliance with conditions of the emissions
system warranty.
o After 120 months or 150,000 miles (240,000
km), continue to follow the prescribed main-
tenance intervals.
o For severe usage maintenance require-
ments, see page 5-6 of this section.
F010D02A-AATGeneral ChecksThese are the regular checks you should per-
form when you drive your Hyundai or you fill the
fuel tank. A list of these items will be found on
page 6-4.F010E01A-AATDo-It-Yourself MaintenanceIf you are mechanically inclined, own a few tools
that are required and want to take the time to do
so, you can inspect and service a number of
items. For more information about doing it your-
self, see Section 6.
F010F01A-AATA Few Tipso Whenever you have your Hyundai serviced,
keep copies of the service records in your
glove box. This will help ensure that you can
document that the required procedures have
been performed to keep your warranties in
effect. This is especially important when
service is not performed by an authorized
Hyundai dealer.
o If you choose to do your own maintenance
and repairs, you may find it helpful to have
an official Hyundai Shop Manual. A copy of
this publication may be purchased at your
Hyundai dealer's parts department.

5
VEHICLE MAINTENANCE REQUIREMENTS4
SCHEDULED MAINTENANCEF030B04NF-AATR :Replace I : Inspect and, after Inspection, clean, adjust, repair or replace if necessary.F030A01NF-AATThe following maintenance services must be performed to ensure good emission control and performance. Keep receipts for all vehicle emission services
to protect your warranty. Where both mileage and time are shown, the frequency of service is determined by whichever occurs first.
DESCRIPTION
EMISSION CONTROL ITEMS
ENGINE OIL AND FILTER
FUEL FILTER
FUEL LINES, FUEL HOSES AND CONNECTIONS
VACUUM AND CRANKCASE VENTILATION HOSES
VAPOR HOSE AND FUEL FILLER CAP
AIR CLEANER FILTER
VALVE CLEARANCE
SPARK PLUGS (IRIDIUM COATED)
FUEL TANK AIR FILTER
ELECTRONIC THROTTLE CONTROL No.
1
2
3
4
5
6
7
8
9
10MILES X 1000
KILOMETERS X 1000
MONTHS7.5
12
6
R
I
I
I15
24
12
R
I
I
I
I22.5
36
18
R
I
I
I30
48
24
R
I
I
I
R
R37.5
60
30
R
R
I
I
I45
72
36
R
I
I
I
I52.5
84
42
R
I
I
I
I60
96
48
R
I
I
I
R
I
R67.5
108
54
R
I
I
I75
120
60
R
R
I
I
I
I
82.5
132
66
R
I
I
I90
144
72
R
I
I
I
R
R97.5
156
78
R
I
I
I
R105
168
84
R
I
I
I
I
I112.5
180
90
R
R
I
I
I120
192
96
R
I
I
I
R
I
R127.5
204
102
R
I
I
I135
216
108
R
I
I
I
I142.5
228
114
R
I
I
I150
240
120
R
R
I
I
I
R
R

5
VEHICLE MAINTENANCE REQUIREMENTS
7
F060D01A-AATo Fuel Lines, Fuel Hoses and Connec-
tionsCheck the fuel lines, fuel hoses and connec-
tions for leakage and damage. Have a trained
technician replace any damaged or leaking
parts immediately.F060B01NF-GATo Drive BeltsInspect all drive belts for evidence of cuts,
cracks, excessive wear or oil saturation and
replace if necessary. Drive belts should be
checked periodically for proper tension.
F060M01A-AATo Engine Oil and FilterThe engine oil and filter should be changed at the
intervals specified in the maintenance sched-
ule. If the car is being driven in severe condi-
tions, more frequent oil and filter changes are
required.F060C01A-AATo Fuel FilterA clogged filter can limit the speed at which the
vehicle may be driven, damage the emission
system and cause hard starting. If an exces-
sive amount of foreign matter accumulates in
the fuel tank, the filter may require replacement
more frequently.
After installing a new filter, run the engine for
several minutes, and check for leaks at the
connections. Fuel filters should be installed by
trained technicians.
F060F01A-AATo Vacuum, Crankcase Ventilation
HosesInspect the surface of hoses for evidence of
heat and/or mechanical damage. Hard and
brittle rubber, cracking, tears, cuts, abrasions,
and excessive swelling indicate deterioration.
Particular attention should be paid to examine
those hose surfaces nearest to high heat
sources, such as the exhaust manifold.
Inspect the hose routing to assure that the
hoses do not come in contact with any heat
source, sharp edges or moving component
which might cause heat damage or mechanical
wear. Inspect all hose connections, such as
clamps and couplings, to make sure they are
secure, and that no leaks are present. Hoses
should be replaced immediately if there is any
evidence of deterioration or damage.
EXPLANATION OF SCHEDULED MAINTENANCE ITEMS

5
VEHICLE MAINTENANCE REQUIREMENTS8
F070G02A-AATo Brake FluidCheck brake fluid level in the brake fluid reser-
voir. 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 immedi-
ately.
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 recom-
mended 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 re-
placed.
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.