2011 Hyundai Sonata engine coolant

723
Maintenance
The high-pressure cooling system has a
reservoir filled with year-round antifreeze
coolant. The reservoir is filled at the fac-
tory.
Check the antifreeze protection and
coolant level at least once a year, at the
beginning of the winter season, and
before traveling to a colder climate.Checking the coolant level
Check the condition and connections of
all cooling system hoses and heater
hoses. Replace any swollen or deterio-
rated hoses.
The coolant level should be filled
between F and L marks on the side of the
coolant reservoir when the engine is
cool.
If the coolant level is low, add enough
specified coolant to provide protection
against freezing and corrosion. Bring the
level to F, but do not overfill. If frequent
additions are required, see an authorized
HYUNDAI dealer for a cooling system
inspection.

OYF079005N
(Continued)
• Turn the engine off and wait untilit cools down. Use extreme care
when removing the radiator cap.
Wrap a thick towel around it, and
turn it counterclockwise slowly to
the first stop. Step back while the
pressure is released from the
cooling system. When you are
sure all the pressure has been
released, press down on the cap,
using a thick towel, and continue
turning counterclockwise to
remove it.
• Even if the engine is not operat- ing, do not remove the radiator
cap or the drain plug while the
engine and radiator are hot. Hot
coolant and steam may still blow
out under pressure, causing seri-
ous injury.
ENGINE COOLANT
WARNING
- Removing
radiator cap
• Never attempt to remove the radi-
ator cap while the engine is oper-
ating or hot. Doing so might lead
to cooling system and engine
damage and could result in seri-
ous personal injury from escap-
ing hot coolant or steam.
(Continued)

YF HMA 7.QXP 11/25/2009 1:45 PM Page 23

Maintenance24
7Recommended engine coolant• When adding coolant, use only deion-
ized water or soft water for your vehicle
and never mix hard water in the
coolant filled at the factory. An improp-
er coolant mixture can result in serious
malfunction or engine damage.
• The engine in your vehicle has aluminum engine parts and must be protected by
an ethylene-glycol-based coolant to pre-
vent corrosion and freezing.
• DO NOT USE alcohol or methanol coolant or mix them with the specified
coolant.
• Do not use a solution that contains more than 60% antifreeze or less than
35% antifreeze, which would reduce
the effectiveness of the solution.
For mixture percentage, refer to the fol-
lowing table.
Changing the coolantHave coolant changed by an authorized
HYUNDAI dealer according to the
Maintenance Schedule at the beginning
of this section.
WARNING -
Radiator cap
Do not remove the radiator cap
when the engine and radiator are
hot. Scalding hot coolant and
steam may blow out under pres-
sure causing serious injury.
WARNING -
Coolant
• Do not use radiator coolant or antifreeze in the washer fluid
reservoir.
• Radiator coolant can severely obscure visibility when sprayed
on the windshield and may cause
loss of vehicle control or damage
to paint and body trim.
5°F (-15°C) 35 65
-13°F (-25°C) 40 60
-31°F (-35°C) 50 50
-49°F (-45°C) 60 40Ambient
Temperature Mixture Percentage (volume)
Antifreeze Water
OYF079006
CAUTION
Put a thick cloth or fabric around
the radiator cap before refilling the coolant in order to prevent thecoolant from overflowing intoengine parts such as generator.

YF HMA 7.QXP 11/25/2009 1:45 PM Page 24

CanisterFuel vapors generated inside the fuel
tank are absorbed and stored in the
onboard canister. When the engine is
running, the fuel vapors absorbed in the
canister are drawn into the surge tank
through the purge control solenoid valve.G270202AUNPurge Control Solenoid Valve (PCSV)The purge control solenoid valve is con-
trolled by the Engine Control Module
(ECM); when the engine coolant temper-
ature is low during idling, the PCSV clos-
es so that evaporated fuel is not taken
into the engine. After the engine warms-
up during ordinary driving, the PCSV
opens to introduce evaporated fuel to the
engine.
3. Exhaust emission control systemThe Exhaust Emission Control System is
a highly effective system which controls
exhaust emissions while maintaining
good vehicle performance.G270301AUNVehicle modifications This vehicle should not be modified.
Modification of your vehicle could affect
its performance, safety or durability and
may even violate governmental safety
and emissions regulations.
In addition, damage or performance
problems resulting from any modification
may not be covered under warranty.Engine exhaust gas precautions (car-
bon monoxide) • Carbon monoxide can be present with other exhaust fumes. Therefore, if you
smell exhaust fumes of any kind inside
your vehicle, have it inspected and
repaired immediately. If you ever sus-
pect exhaust fumes are coming into
your vehicle, drive it only with all the
windows fully open. Have your vehicle
checked and repaired immediately.
WARNING
-Exhaust
Engine exhaust gases contain car-
bon monoxide (CO). Though color-
less and odorless, it is dangerous
and could be lethal if inhaled.
Follow the instructions on this
page to avoid CO poisoning.

CALIFORNIA PROPOSI-
TION 65 WARNING
Engine exhaust and a wide variety
of automobile components and
parts, including components found
in the interior furnishings in a vehi-
cle, contain or emit chemicals
known to the State of California to
cause cancer and birth defects and
reproductive harm. In addition, cer-
tain fluids contained in vehicles
and certain products of component
wear contain or emit chemicals
known to the State of California to
cause cancer and birth defects or
other reproductive harm.
Maintenance
71
7

YF HMA 7.QXP 11/25/2009 1:54 PM Page 71

Specifications, Consumer information, Reporting safety defeccts4
8RECOMMENDED LUBRICANTS AND CAPACITIES To help achieve proper engine and powertrain performance and durability, use only lubricants of the proper quality. The correct
lubricants also help promote engine efficiency that results in improved fuel economy.These lubricants and fluids are recommended for use in your vehicle.*1Refer to the recommended SAE viscosity numbers on the next page.
*2Engine oils labeled Energy Conserving Oil are now available. Along with other additional benefits, they contribute to fuel econo my by reducing
the amount of fuel necessary to overcome engine friction. Often, these improvements are difficult to measure in everyday driving , but in a year’s
time, they can offer significant cost and energy savings.
*3If the API service SM engine oil is not available in your country, you are able to use API service SL.
Lubricant
Volume
Classification
Engine oil
*1 *2
(drain and refill)
Recommends
4.86 US qt. (4.6
l)
API Service SM*
3,
ILSAC GF-4 or above
Manual transaxle fluid
1.90 US qt. (1.8
l)
API GL-4, SAE 75W/85
Automatic transaxle fluid
7.50 US qt. (7.1
l)
MICHANG ATF SP-IV, SK ATF SP-IV
NOCA ATF SP-IV, HYUNDAI genuine ATF SP-IV or other brands meeting the above specification approved by Hyundai Motor Co.,
Coolant
6.97 US qt. (6.6
l)
Mixture of antifreeze and water (Ethylene glycol basecoolant for aluminum radiator)
Brake/clutch fluid
0.7~0.8 US qt.
(0.7~0.8
l)
FMVSS116 DOT-3 or DOT-4
Fuel
18.49 US gal. (70
l)
Unleaded gasoline

YF HMA 8.QXP 12/24/2009 5:23 PM Page 4

I3
Index
California perchlorate notice ··················\
··················\
·····7-73
Capacities (Lubricants) ··················\
··················\
················8-4
CareExterior care ··················\
··················\
··················\
········7-64
Interior care ··················\
··················\
··················\
·········7-68
Tire care··················\
··················\
··················\
···············7-36
Cargo weight ··················\
··················\
··················\
············5-50
Center console storage ··················\
··················\
···············4-98
Central door lock switch··················\
··················\
············4-19
Certification label ··················\
··················\
···············5-48, 8-6
Changing tires ··················\
··················\
··················\
··········6-13
Chains Tire chains ··················\
··················\
··················\
···········5-42
Checking tire inflation pressure··················\
··················\
·7-37
Child restraint system ··················\
··················\
················3-29 Passenger seat belt ··················\
··················\
················3-31
Tether anchor system··················\
··················\
·············3-33
Lower anchor system ··················\
··················\
············3-35
Child-protector rear door lock ··················\
··················\
···4-21
Climate control system (Automatic) ··················\
···········4-91 Air conditioning ··················\
··················\
··················\
··4-94
Automatic heating and air conditioning··················\
··4-89
Manual heating and air conditioning ··················\
······4-90
Climate control system (Manual) ··················\
················4-79 Air conditioning ··················\
··················\
··················\
··4-85
Climate control air filter··················\
··················\
········4-87
Heating and air conditioning··················\
··················\
·4-80 Climate control air filter ··················\
··················\
············4-89
Climate control air filter ··················\
··················\
············7-29
Clock (Digital) ··················\
··················\
··················\
·······4-102
Clothes hanger ··················\
··················\
··················\
·······4-102
Combined instrument, see instrument cluster ···············4-46
Compact spare tire ··················\
··················\
··················\
···6-18
Compact spare tire replacement ··················\
··················\
7-41
Compass mirror, see the Electric chromic mirror (ECM)
with homeLink system and compass ··················\
······4-37
Consumer information ··················\
··················\
·················8-8
Coolant ··················\
··················\
··················\
··················\
···7-23
Cooling fluid, see engine coolant ··················\
················7-23
Crankcase emission control system ··················\
·············7-70
Cruise control system ··················\
··················\
················5-31
Cup holder ··················\
··················\
··················\
·············4-100
Curtain air bag ··················\
··················\
··················\
·········3-54
Dashboard, see instrument cluster ··················\
···············4-46
Dashboard illumination, see instrument panel illumination ··················\
··················\
··················\
·········4-47
Daytime running light··················\
··················\
················4-69
Defogging (Windshield) ··················\
··················\
············4-95
Defogging logic (Windshield) ··················\
··················\
···4-97
Defroster (Rear window) ··················\
··················\
···········4-78
Defrosting (Windshield) ··················\
··················\
············4-95
Digital clock··················\
··················\
··················\
···········4-102
Dimensions ··················\
··················\
··················\
················8-2C
D

YF HMA INDEX.QXP 1/13/2010 2:11 PM Page 3

Index4I
Displays, see instrument cluster ··················\
··················\
4-46
Display illumination, see instrument panelillumination ··················\
··················\
··················\
·········4-47
Door locks··················\
··················\
··················\
················4-18 Central door lock switch ··················\
··················\
·······4-19
Child-protector rear door lock ··················\
················4-21
Drink holders, see cup holders ··················\
··················\
4-100
Driver's 3-point system with emergency locking retractor ··················\
··················\
··················\
···············3-19
Driver's air bag··············\
··················\
··················\
·············3-49
Driving at night··················\
··················\
··················\
········5-38
Driving in flooded areas ··················\
··················\
············5-39
Driving in the rain ··················\
··················\
··················\
···5-39
Economical operation ··················\
··················\
················5-35
EDR, see Vehicle data collection and event data recorders ··················\
··················\
··················\
················1-6
Electronic stability control (ESC) ··················\
···············5-26
Electric chromic mirror (ECM) with HomeLink system and compass ··················\
··················\
··················\
········4-37
Electric power steering ··················\
··················\
··············4-35
Emergency starting ··················\
··················\
··················\
····6-4 Jump starting ··················\
··················\
··················\
·········6-4
Push starting ··················\
··················\
··················\
··········6-5
Emergency while driving··················\
··················\
·············6-2 Emission control system ··················\
··················\
············7-70
Crankcase emission control system ··················\
········7-70
Evaporative emission control System ··················\
·····7-70
Exhaust emission control system ··················\
············7-71
Engine compartment ··················\
··················\
············2-4, 7-2
Engine coolant ··················\
··················\
··················\
·········7-23
Engine number ··················\
··················\
··················\
···········8-7
Engine oil ··················\
··················\
··················\
·················7-21\
Engine overheats··················\
··················\
··················\
········6-6
Engine start/stop button ··················\
··················\
···············5-7
Engine temperature gauge ··················\
··················\
·········4-48
Engine will not start··················\
··················\
··················\
···6-3
Evaporative emission control System ··················\
·········7-70
Exhaust emission control system··················\
·················7-71\
Explanation of scheduled maintenance items ···············7-18
Exterior care··················\
··················\
··················\
·············7-64
Flat tire ··················\
··················\
··················\
··················\
···6-12 Changing tires ··················\
··················\
··················\
·····6-13
Compact spare tire ··················\
··················\
················6-18
Jack and tools ··················\
··················\
··················\
······6-12
Removing and storing the spare tire ··················\
·······6-13
Floor mat anchor(s) ··················\
··················\
·················4-10\
3
Fluid Washer fluid ··················\
··················\
··················\
········7-26
Brakes/clutch fluid ··················\
··················\
················7-25E
F

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