2008 Hyundai Sonata air condition

6
DO-IT-YOURSELF MAINTENANCE
4
G020C01A-AATVehicle InteriorThe following should be checked each time
when the vehicle is driven:
o Lights operation
o Windshield wiper operation
o Horn operation
o Defroster, heating system operation (and air
conditioning, if installed)
o Steering operation and condition
o Mirror condition and operation
o Turn signal operation
o Accelerator pedal operation
o Brake operation, including parking brake
o Manual transaxle operation, including clutch
operation
o Automatic transaxle operation, including
"Park" mechanism operation
o Seat control condition and operation
o Seat belt condition and operation
o Sun visor operation
If you notice anything that does not operate
correctly or appears to be functioning correctly,
inspect it carefully and seek assistance from
your Hyundai dealer if service is needed.
G020B01A-AATVehicle ExteriorThe following should be checked monthly:
o Overall appearance and condition
o Wheel condition and wheel nut torque
o Exhaust system condition
o Light condition and operation
o Windshield glass condition
o Wiper blade condition
o Paint condition and body corrosion
o Fluid leaks
o Door and hood lock condition
o Tire pressure and condition
(including spare tire)GENERAL CHECKSG020A01NF-AATEngine CompartmentThe following should be checked regularly:
o Engine oil level and condition
o Transaxle fluid level and condition
o Brake fluid level
o Engine coolant level
o Windshield washer fluid level
o Accessory drive belt condition
o Engine coolant hose condition
o Fluid leaks (on or below components)
o Power steering fluid level
o Battery condition
o Air filter condition
o Engine vibration
CHECKING THE ENGINE OILG030B01O-AATRecommended OilThe engine oil quality should meet the following
classification.
API SJ, SL or ABOVE,
ILSAC GF-3 or ABOVE
G030B01JM-U G030A01A-AAT
Engine oil is essential to the performance and
service of the engine. It is suggested that you
check the oil level at least once a week in normal
use and more often if you are on a trip or driving
in severe conditions.

6
DO-IT-YOURSELF MAINTENANCE
11
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10.Replace the reservoir cap and check to be
sure the drain cock and the radiator cap are
fully closed and not leaking.
CAUTION:
Recheck after a few days and add the cool-
ant if the level is below the "L" level.
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.
CAUTION:
o Operating your vehicle without using a
proper air cleaner filter in place can result
in excessive engine wear.
o When removing the air cleaner filter, be
careful that dust or dirt does not enter
the air intake. These may result in dam-
age to the air cleaner filter.
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CHANGING THE AIR
CLEANER FILTERG070A03Y-AATThe replacement of the air cleaner filter is
performed in the following manner.
1. Unsnap the clips around the cover.
2. When this is done, the cover can be lifted off,
the old filter removed and the new filter put in
its place.
Genuine Hyundai replacement parts are rec-
ommended.
HNF5011

6
DO-IT-YOURSELF MAINTENANCE
18
G140C01A-AATLubricationTo lubricate the compressor and the seals in the
system, the air conditioning should be run for at
least 10 minutes each week. This is particularly
important during cool weather when the air
conditioning system is not otherwise in use.
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G120E02A-AATAdding Brake Fluid
WARNING:Handle brake fluid carefully. It can damage
your vision if it gets into your eyes. Use only
DOT 3 or DOT 4 specification fluid from a
sealed container. Do not allow the fluid can
or reservoir to remain open any longer than
required. This will prevent entry of dirt and
moisture which can damage the brake sys-
tem and cause improper operation.
To add brake fluid, first wipe away any dirt, then
unscrew the fluid reservoir cap. Slowly pour the
recommended fluid into the reservoir. Do not
overfill. Carefully replace the cap on the reser-
voir and tighten.
AIR CONDITIONING CARE!
G140A01A-AATKeeping the Condenser CleanThe air conditioning condenser (and engine
radiator) should be checked periodically for
accumulation of dirt, dead insects, leaves, etc.
These can interfere with maximum cooling ef-
ficiency. When removing such accumulations,
brush or hose them away carefully to avoid
bending the cooling fans.G140B01A-AATChecking the Air Conditioning Opera-
tion1. Start the engine and let it run at a fast idle for
several minutes with the air conditioning set
at the maximum cold setting.
2. If the air coming out of the in-dash vents is
not cold, have the air conditioning system
inspected by your Hyundai dealer.
CAUTION:
Running the air conditioning system for
extended periods of time with a low refrig-
erant level may damage the compressor.
HNF5013

6
DO-IT-YOURSELF MAINTENANCE
25
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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.

7
EMISSION CONTROL SYSTEMS
3
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CATALYTIC CONVERTERH020A01A-AATAll Hyundai vehicles are equipped with a mono-
lith type three-way catalytic converter to re-
duce the carbon monoxide, hydrocarbons and
nitrogen oxides contained in the exhaust gas.
Exhaust gases passing through the catalytic
converter cause it to operate at a very high
temperature. The introduction of large amounts
of unburned gasoline into the exhaust may
cause the catalytic converter to overheat and
create a fire hazard. This risk may be reduced
by observing the following:Catalytic Converter
WARNING:
o Use unleaded fuel only.
o Maintain the engine in good operating
condition. Extremely high catalytic con-
verter temperatures can result from im-
proper operation of the electrical, igni-
tion or multiport electronic fuel injec-
tion.
o If your engine stalls, pings, knocks, or is
hard to start, have your Hyundai dealer
inspect and repair the problem as soon
as possible.
o Avoid driving with a very low fuel level.
Running out of gasoline may cause the
engine to misfire and result in damage to
the catalytic converter.
o Avoid idling the engine for periods
longer than 10 minutes.
o The vehicle should not be pushed or
pulled to get started. This may cause the
catalytic converter to overheat and cre-
ate a fire hazard.
o Do not touch the catalytic converter or
any other part of the exhaust system
while the catalytic converter is hot. Shut
off the engine, wait for at least one hour
before touching the catalytic converter
or any other part of the exhaust system.
H020A01NF
o Remember that your Hyundai dealer is
your best source of assistance.
o Do not stop your Hyundai over any com-
bustible material such as grass, paper,
leaves or rags. These materials might
contact the hot catalytic converter and a
fire might result.
WARNING:

8
CONSUMER INFORMATION, REPORTING SAFETY DEFECTS & BINDING ARBITRATION OF WARRANTY CLAIMS
7
6. Maximum load rating
This number indicates the maximum
load in kilograms and pounds that
can be carried by the tire. When
replacing the tires on the vehicle,
always use a tire that has the same
load rating as the factory installed
tire.
7. Uniform Tire Quality Grading
(UTQG):
Tire manufacturers are required to
grade tires based on three perfor-
mance factors: treadwear, traction
and temperature resistance. For more
information, see Uniform Tire Qual-
ity Grading on page 8-14.
I030D01JM-AATTIRE TERMINOLOGY AND DEFINI-
TIONS
Air Pressure: The amount of air inside
the tire pressing outward on the tire. Air
pressure is expressed in pounds per
square inch (psi) or kilopascal (kPa).
Accessory Weight: This means the
combined weight of optional accesso-
ries. Some examples of optional ac-
cessories are, automatic transmission,
power seats, and air conditioning.
Aspect Ratio: The relationship of a
tire's height to its width.
Belt: A rubber coated layer of cords that
is located between the plies and the
tread. Cords may be made from steel or
other reinforcing materials.
Bead: The tire bead contains steel
wires wrapped by steel cords that hold
the tire onto the rim.
Bias Ply Tire: A pneumatic tire in which
the plies are laid at alternate angles
less than 90 degrees to the centerline of
the tread.Cold Tire Pressure: The amount of air
pressure in a tire, measured in pounds
per square inch (psi) or kilopascals
(kPa) before a tire has built up heat from
driving.
Curb Weight: This means the weight of
a motor vehicle with standard and op-
tional equipment including the maxi-
mum capacity of fuel, oil and coolant,
but without passengers and cargo.
DOT Markings: A code molded into the
sidewall of a tire signifying that the tire
is in compliance with the U.S. Depart-
ment of Transportation motor vehicle
safety standards. The DOT code in-
cludes the Tire Identification Number
(TIN), an alphanumeric designator which
can also identify the tire manufacturer,
production plant, brand and date of
production.
GVWR: Gross Vehicle Weight Rating
GAWR FRT: Gross Axle Weight Rating
for the front Axle.
GAWR RR: Gross Axle Weight Rating
for the rear axle.

8
CONSUMER INFORMATION, REPORTING SAFETY DEFECTS & BINDING ARBITRATION OF WARRANTY CLAIMS
9
Vehicle Capacity Weight: The number
of designated seating positions multi-
plied by 150 lbs. (68 kg) plus the rated
cargo and luggage load.
Vehicle Maximum Load on the Tire:
Load on an individual tire due to curb
and accessory weight plus maximum
occupant and cargo weight.
Vehicle Normal Load on the Tire:
That load on an individual tire that is
determined by distributing to each axle
its share of the curb weight, accessory
weight, and normal occupant weight
and dividing by 2.
Vehicle Placard: A label permanently
attached to a vehicle showing the origi-
nal equipment tire size and recom-
mended inflation pressure.
I050A04Y-AATTIRE CHAINS
Tire chains, if necessary, should be
installed on the front wheels. Be sure
that the chains are the proper size and
that they are installed in accordance
with the manufacturer's instructions.
To minimize tire and chain wear, do not
continue to use tire chains when they
are no longer needed.
I040B01JM-AATALL SEASON TIRES
Hyundai specifies all season tires on
some models to provide good perfor-
mance for use all year round, including
snowy and icy road conditions. All sea-
son tires are identified by ALL SEASON
and/or M+S (Mud and Snow) on the tire
sidewall. Snow tires have better snow
traction than all season tires an may be
more appropriate in some areas.I040A01O-AATSNOW TIRES
If you equip your car with snow tires,
they should be the same size and have
the same load capacity as the original
tires. Snow tires should be installed on
all four wheels; otherwise, poor han-
dling may result.Snow tires should carry 4 psi (28 kPa)
more air pressure than the pressure
recommended for the standard tires on
the tire label on the driver's side of the
center pillar , or up to the maximum
pressure shown on the tire sidewall,
whichever is less.
Do not drive faster than 75 mph (120
km/h) when your car is equipped with
snow tires.

10
INDEX
2
A
Accessory Box................................................................................1-76
Advanced Supplemental Restraint (AIRBAG) System (SRS) ......1-36
Curtain airbag...............................................................................1-47
Driver's and passenger's front airbag.......................................1-37
Occupant classification system..................................................1-42
Side impact airbag .......................................................................1-46
Air Cleaner Filter ..............................................................................6-14
Air Conditioning
Care..............................................................................................6-18
Operation.......................................................................... 1-105, 6-18
Switch.........................................................................................1-105
Antenna..........................................................................................1-134
Audio System
Audio remote control switch .......................................................1-97
Compact disc player operation (V480)....................................1-122
Compact disc player operation (V490)....................................1-129
Stereo radio operation (V480) ..................................................1-119
Stereo radio operation (V490) ..................................................1-126
XM radio operation (V480S) .....................................................1-134
Automatic Heating and Cooling Control System.........................1-108
Automatic-Dimming Mirror with Z-Nav™ Electronic Compass
Display and HomeLink
®
...........................................................................................................
1-80B
Battery..............................................................................................6-24
Binding Arbitration............................................................................8-17
Brake
Anti-lock brake system (ABS) ....................................................2-12
Checking the brakes...................................................................6-17
Fluid ..............................................................................................6-17
Pedal clearance...........................................................................6-21
Pedal free-play.............................................................................6-20
Practices......................................................................................2-15
Breaking-In your New Hyundai ........................................................ 1-3
C
California Perchlorate Notice ..........................................................5-10
Care of Discs ................................................................................1-118
Catalytic Converter............................................................................ 7-3
Center Console Compartment........................................................1-77
Child Restraint System ...................................................................1-28
Installing a child restraint system with
"Tether Anchorage" system ......................................................1-30
Securing a child restraint system with "ISOFIX" system .........1-31
Child-Protector Rear Door Lock ...................................................... 1-6
Cigarette Lighter..............................................................................1-68
Climate Control Air Fiter...................................................... 1-114, 6-19
Clock................................................................................................1-67
Clutch
Pedal free-play.............................................................................6-20