2011 Hyundai Sonata fuel

EMISSION CONTROL SYSTEMThe emission control system of your
vehicle is covered by a written limited
warranty. Please see the warranty infor-
mation contained in the Owner’s
Handbook & Warranty Information book-
let in your vehicle.
Your vehicle is equipped with an emis-
sion control system to meet all applicable
emission regulations.
There are three emission control sys-
tems, as follows.
(1) Crankcase emission control system
(2) Evaporative emission control system
(3) Exhaust emission control system
In order to assure the proper function of
the emission control systems, it is rec-
ommended that you have your car
inspected and maintained by an author-
ized HYUNDAI dealer in accordance with
the maintenance schedule in this manu-
al.Caution for the Inspection and
Maintenance Test (With Electronic
Stability Control (ESC) system)
• To prevent the vehicle from misfir-
ing during dynamometer testing,
turn the Electronic Stability Control
(ESC) system off by pressing the
ESC switch.
• After dynamometer testing is com- pleted, turn the ESC system back on
by pressing the ESC switch again.
1. Crankcase emission control systemThe positive crankcase ventilation sys-
tem is employed to prevent air pollution
caused by blow-by gases being emitted
from the crankcase. This system supplies
fresh filtered air to the crankcase through
the air intake hose. Inside the crankcase,
the fresh air mixes with blow-by gases,
which then pass through the PCV valve
into the induction system.2. Evaporative emission control(including ORVR: Onboard
Refueling Vapor Recovery)
systemThe Evaporative Emission Control
System is designed to prevent fuel
vapors from escaping into the atmos-
phere.
(The ORVR system is designed to allow
the vapors from the fuel tank to be
loaded into a canister while refueling at
the gas station, preventing the escape of
fuel vapors into the atmosphere.)
770Maintenance

YF HMA 7.QXP 11/25/2009 1:54 PM Page 70

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

• Do not operate the engine in confinedor closed areas (such as garages) any
more than what is necessary to move
the vehicle in or out of the area.
• When the vehicle is stopped in an open area for more than a short time
with the engine running, adjust the
ventilation system (as needed) to draw
outside air into the vehicle.
• Never sit in a parked or stopped vehi- cle for any extended time with the
engine running.
• When the engine stalls or fails to start, excessive attempts to restart the
engine may cause damage to the
emission control system.
Operating precautions for catalyticconverters (if equipped)Your vehicle is equipped with a catalytic
converter emission control device.
Therefore, the following precautions
must be observed:
• Use only UNLEADED FUEL for gaso- line engines.
• Do not operate the vehicle when there are signs of engine malfunction, such
as misfire or a noticeable loss of per-
formance. • Do not misuse or abuse the engine.
Examples of misuse are coasting with
the ignition off and descending steep
grades in gear with the ignition off.
• Do not operate the engine at high idle speed for extended periods (5 minutes
or more).
• Do not modify or tamper with any part of the engine or emission control sys-
tem. All inspections and adjustments
must be made by an authorized
HYUNDAI dealer.
• Avoid driving with a extremely low fuel level. Running out of fuel could cause
the engine to misfire, damaging the
catalytic converter.
Failure to observe these precautions
could result in damage to the catalytic
converter and to your vehicle.
Additionally, such actions could void your
warranties.
WARNING
- Fire
A hot exhaust system can ignite
flammable items under your vehi-
cle. Do not park, idle, or drive the
vehicle over or near flammable
objects, such as grass, vegetation,
paper, leaves, etc.
772Maintenance

YF HMA 7.QXP 11/25/2009 1:54 PM Page 72

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

85
Specifications, Consumer information, Reporting safety defeccts
Recommended SAE viscosity
number
Engine oil viscosity (thickness) has an
effect on fuel economy and cold weather
operating (engine start and engine oil
flowability). Lower viscosity engine oils
can provide better fuel economy and cold
weather performance, however, higher
viscosity engine oils are required for sat-
isfactory lubrication in hot weather. Using
oils of any viscosity other than those rec-
ommended could result in engine dam-
age.When choosing an oil, consider the range
of temperature your vehicle will be oper-
ated in before the next oil change.
Proceed to select the recommended oil
viscosity from the chart.
CAUTION
Always be sure to clean the area
around any filler plug, drain plug, ordipstick before checking or drain- ing any lubricant. This is especiallyimportant in dusty or sandy areasand when the vehicle is used on unpaved roads. Cleaning the plugand dipstick areas will prevent dirt and grit from entering the engineand other mechanisms that could be damaged.
Temperature Range for SAE Viscosity Numbers
Temperature
Engine Oil *
1°C
(°F)
-30 -20 -10 0 10 20 30 40 50 -10 0 20 40 60 80 100 120
1. For better fuel economy, it is recommended to use the engine oil of a viscosity grade SAE 5W-
20 (API Service SM / ILSAC GF-4). However, if the engine oil is not available, select the prop-
er engine oil using the engine oil viscosity chart.
10W-30
5W-20, 5W-30

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

I5
Index
Folding the rear seat ··················\
··················\
··················\
3-14
Front passenger and rear seat 3-point system withcombination locking retractor ··················\
·················3-21\
Front seat adjustment - manual ··················\
··················\
···3-4
Front seat adjustment - power ··················\
··················\
·····3-5
Fuel filler lid ··················\
··················\
··················\
············4-29
Fuel gauge··················\
··················\
··················\
················4-49
Fuel requirements ··················\
··················\
··················\
······1-3
Fuses ··················\
··················\
··················\
··················\
······7-49
Fuse/relay panel description··················\
··················\
··7-53
Instrument panel fuse ··················\
··················\
············7-50
Multi fuse ··················\
··················\
··················\
············7-52
Memory fuse ··················\
··················\
··················\
·······7-51
Gauge Engine temperature gauge··················\
··················\
·····4-48
Fuel gauge ··················\
··················\
··················\
···········4-49
Glassroof, see sunroof ··················\
··················\
···············4-32
Glass antenna ··················\
··················\
··················\
·········4-104
Glove box··················\
··················\
··················\
·················4-98\
Hazard warning flasher··················\
··················\
··············4-68
Hazardous driving conditions ··················\
··················\
····5-37
Headlamp delay ··················\
··················\
··················\
·······4-68
Headlamp welcome function ··················\
··················\
·····4-68
Headlight bulb replacement ··················\
··················\
·······7-58
Headrest ··················\
··················\
··················\
············3-7, 3-11
Highway driving ··················\
··················\
··················\
······5-40
Homelink mirror, see the Electric chromic mirror (ECM)
with homeLink system and compass ··················\
······4-37
Hood··················\
··················\
··················\
··················\
·······4-28
Horn ··················\
··················\
··················\
··················\
·······4-36
How to use this manual ··················\
··················\
···············1-2
Ignition key interlock system ··················\
··················\
····5-19
Immobilizer system ··················\
··················\
··················\
···4-5
Indicators and warnings ··················\
··················\
·············4-55
Indicator symbols on the instrument cluster ··················\
·1-7
Inside rearview mirror ··················\
··················\
···············4-37G
IH

YF HMA INDEX.QXP 1/13/2010 2:11 PM Page 5

Index6I
Instrument cluster ··················\
··················\
··················\
····4-46Engine temperature gauge··················\
··················\
·····4-48
Fuel gauge ··················\
··················\
··················\
···········4-49
Instrument panel illumination ··················\
·················4-47\
Odometer ··················\
··················\
··················\
·············4-50
Speedometer ··················\
··················\
··················\
········4-47
Tachometer ··················\
··················\
··················\
··········4-47
Trip computer ··················\
··················\
··················\
······4-49
Vehicle setting ··················\
··················\
··················\
·····4-53
Warning and indicators ··················\
··················\
·········4-55
Instrument panel illumination··················\
··················\
····4-47
Instrument panel overview ··················\
··················\
··········2-3
Interior care··················\
··················\
··················\
··············7-68
Interior features··················\
··················\
··················\
······4-100 Clothes hanger··················\
··················\
··················\
···4-102
Cup holder ··················\
··················\
··················\
·········4-100
Digital clock ··················\
··················\
··················\
······4-102
Aux, USB and iPod ··················\
··················\
·············4-103
Floor mat anchor(s) ··················\
··················\
·············4-103
Power outlet ··················\
··················\
··················\
······4-101
Sunvisor··················\
··················\
··················\
·············4-100
Interior light ··················\
··················\
··················\
·············4-75
Interior overview ··················\
··················\
··················\
·······2-2
Interlock system ··················\
··················\
··················\
·······5-19 Jack and tools··················\
··················\
··················\
···········6-12
Jump starting··················\
··················\
··················\
··············6-4
Key positions ··················\
··················\
··················\
·············5-5
Keys ··················\
··················\
··················\
··················\
·········4-3
Label
Air bag warning label··················\
··················\
············3-63
Tire sidewall labeling ··················\
··················\
············7-42
Tire specification and pressure label··················\
·········8-7
Vehicle certification label ··················\
················5-48, 8-\
6
Latch system, see lower anchor system ··················\
······3-35
Light bulbs ··················\
··················\
··················\
···············7-58
Lighting··················\
··················\
··················\
··················\
··4-68 Battery saver function ··················\
··················\
···········4-68
Daytime running light ··················\
··················\
···········4-69
Headlamp delay··················\
··················\
··················\
···4-68
Headlamp welcome function ··················\
··················\
4-68
Lower anchor system ··················\
··················\
·················3-35\
Lubricants and capacities··················\
··················\
·············8-4
Lumbar support··················\
··················\
··················\
··········3-7
JKL

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