2011 Hyundai Sonata service

F4FOREWORD
Thank you for choosing Hyundai. We are pleased to welcome you to the growing number of discerning people who drive Hyundais.
The advanced engineering and high-quality construction of each Hyundai we build is something of which we're very proud.
Your Owner's Manual will introduce you to the features and operation of your new Hyundai. It is suggested that you read it care-
fully because the information it contains can contribute greatly to the satisfaction you receive from your new car.
The manufacturer also recommends that all service and maintenance on your car be performed by an authorized Hyundai deal-
er. Hyundai dealers are prepared to provide high-quality service, maintenance and any other assistance that may be required.
HYUNDAI MOTOR AMERICA
Note
: Because future owners will also need the information included in this manual, if you sell this Hyundai, please leave the man-
ual in the vehicle for their use. Thank you.
Copyright 2009 Hyundai Motor America. All rights reserved. No part of this publication may be reproduced, stored in any retrieva l
system or transmitted in any form or by any means without the prior written permission of Hyundai Motor America.
CAUTION
Severe engine and transaxle damage may result from the use of poor quality fuels and lubricants that do not meet Hyundai\
specifications. You must always use high quality fuels and lubricants that meet the specifications li\
sted on Page 8-4 in the Vehicle Specifications and consumer information section of the Owner's Manual.

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325
Safety features of your vehicle
Seat belt precautions
(Continued)
• Always wear the seat belts whendriving or riding in a motor vehi-
cle.
• If the vehicle or pre-tensioner seat belt must be discarded, con-
tact an authorized HYUNDAI deal-
er.
WARNING
All occupants of the vehicle must
wear their seat belts at all times.
Seat belts and child restraints
reduce the risk of serious or fatal
injuries for all occupants in the
event of a collision or sudden stop.
Without a seat belt, occupants
could be shifted too close to a
deploying air bag, strike the interior
structure or be thrown from the
vehicle. Properly worn seat belts
greatly reduce these hazards.
Even with advanced air bags,
unbelted occupants can be severe-
ly injured by a deploying air bag.
Always follow the precautions
about seat belts, air bags and occu-
pant seating contained in this man-
ual.
WARNING
• Pre-tensioners are designed tooperate only one time. After acti-
vation, pre-tensioner seat belts
must be replaced. All seat belts,
of any type, should always be
replaced after they have been
worn during a collision.
• The pre-tensioner seat belt assembly mechanisms become
hot during activation. Do not
touch the pre-tensioner seat belt
assemblies for several minutes
after they have been activated.
• Do not attempt to inspect or replace the pre-tensioner seat
belts yourself. This must be done
by an authorized HYUNDAI dealer.
• Do not strike the pre-tensioner seat belt assemblies.
• Improper handling of the pre-ten- sioner seat belt assemblies, and
failure to heed the warnings not
to strike, modify, inspect, replace,
service or repair the pre-tension-
er seat belt assemblies may lead
to improper operation or inadver-
tent activation and serious injury.
(Continued)

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361
Safety features of your vehicle
SRS CareThe SRS is virtually maintenance-free
and so there are no parts you can safely
service by yourself. If the SRS air bag
warning light " " does not illuminate,
when you turn the ignition on, or continu-
ously remains on, have your vehicle
immediately inspected by an authorized
HYUNDAI dealer.
Any work on the SRS system, such as
removing, installing, repairing, or any
work on the steering wheel, the front
passenger's panel, front seats and roof
rails must be performed by an authorized
HYUNDAI dealer. Improper handling of
the SRS system may result in serious
personal injury.

WARNING
• Modification to SRS componentsor wiring, including the addition
of any kind of badges to the pad
covers or modifications to the
body structure, can adversely
affect SRS performance and lead
to possible injury.
• Not only the modification of the parts where the SRS sensors are
but also the modification of other
parts of the vehicle may affect the
SRS performance and lead to
possible injury.
• For cleaning the air bag pad cov- ers, use only a soft, dry cloth or
one which has been moistened
with plain water. Solvents or
cleaners could adversely affect
the air bag covers and proper
deployment of the system.
•No objects should be placed over
or near the air bag modules on the
steering wheel, instrument panel,
and the front passenger's panel
above the glove box, because any
such object could cause harm if the
vehicle is in a crash severe enough
to cause the air bags to inflate.
(Continued)
(Continued)
• If the air bags inflate, they must be replaced by an authorized
HYUNDAI dealer.
• Do not tamper with or disconnect SRS wiring, or other components
of the SRS system. Doing so
could result in injury, due to acci-
dental inflation of the air bags or
by rendering the SRS inopera-
tive.
• If components of the air bag sys- tem must be discarded, or if the
vehicle must be scrapped, certain
safety precautions must be
observed. An authorized
HYUNDAI dealer knows these
precautions and can give you the
necessary information. Failure to
follow these precautions and pro-
cedures could increase the risk
of personal injury.
• If your car was flooded and has soaked carpeting or water on the
flooring, you shouldn't try to start
the engine; have the car towed to
an authorized HYUNDAI dealer.

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45
Features of your vehicle
Immobilizer system (if equipped)Your vehicle is equipped with an elec-
tronic engine immobilizer system to
reduce the risk of unauthorized vehicle
use.
Your immobilizer system is comprised of
a small transponder in the ignition key
and electronic devices inside the vehicle.
With the immobilizer system, whenever
you insert your ignition key into the igni-
tion switch and turn it to ON, it checks
and determines and verifies if the ignition
key is valid.
If the key is determined to be valid, the
engine will start.
If the key is determined to be invalid, the
engine will not start.To activate the immobilizer system:Turn the ignition key to the OFF position.
The immobilizer system activates auto-
matically. Without a valid ignition key for
your vehicle, the engine will not start.To deactivate the immobilizer sys-tem:Insert the ignition key into the key cylin-
der and turn it to the ON position.
✽ NOTICEWhen starting the engine, do not use the
key with other immobilizer keys around.
Otherwise the engine may not start or
may stop soon after it starts. Keep each
key separate in order to avoid a starting
malfunction.
✽NOTICEIf you need additional keys or lose your
keys, consult an authorized HYUNDAI
dealer.
CAUTION
The transponder in your ignition
key is an important part of the immobilizer system. It is designedto give years of trouble-free service, however you should avoid expo-sure to moisture, static electricity and rough handling. Immobilizersystem malfunction could occur.
WARNING
In order to prevent theft of your
vehicle, do not leave spare keys
anywhere in your vehicle. Your
Immobilizer password is a cus-
tomer unique password and should
be kept confidential. Do not leave
this number anywhere in your vehi-
cle.
CAUTION
Do not change, alter or adjust the immobilizer system because itcould cause the immobilizer sys- tem to malfunction and should onlybe serviced by an authorized HYUNDAI dealer.
Malfunctions caused by improperalterations, adjustments or modifi- cations to the immobilizer systemare not covered by your vehicle manufacturer warranty.
CAUTION
Do not put metal accessories nearthe ignition switch.
Metal accessories may interrupt thetransponder signal and may pre- vent the engine from being started.

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417
Features of your vehicle
Disarmed stageUsing the smart keyThe system will be disarmed when the
doors are unlocked by pressing the
unlock button on the smart key or press-
ing the lock/unlock button of the front out-
side door handle with the smart key in
your possession.
After unlocking the doors, the hazard
warning lights and chime will operate
twice to indicate that the system is dis-
armed.
After unlocking the doors, if any door is
not opened within 30 seconds, the sys-
tem will be rearmed.Using the transmitterThe system will be disarmed when the
doors are unlocked with by pressing the
unlock button on the transmitter.
After unlocking the doors, the hazard
warning lights will blink twice to indicate
that the system is disarmed.
After unlocking the doors, if any door is
not opened within 30 seconds, the sys-
tem will be rearmed.
Using the mechanical keyThe system will be disarmed when the
doors are unlocked with the mechanical
key.✽NOTICEIf you lock or unlock the doors by
using the mechanical key, the hazard
warning light and chime sound won't
operate.✽NOTICE -
Non-immobilizer
system
• Avoid trying to start the engine while
the alarm is activated. The vehicle
starting motor is disabled during the
theft-alarm stage.
If the system is not disarmed with the
transmitter, insert the key into the
ignition switch, turn the ignition
switch to the ON position and wait for
30 seconds. Then the system will be
disarmed.
• If you lose your keys, consult your authorized HYUNDAI dealer.
✽ NOTICE
- Immobilizer system
or smart key system
• If the system is not disarmed with the transmitter or smart key, insert the
key into the ignition switch and start
the engine or start the engine with the
smart key. Then the system will be
disarmed.
• If you lose your keys, consult your authorized HYUNDAI dealer.
CAUTION
Do not change, alter or adjust the
theft-alarm system because it couldcause the theft-alarm system tomalfunction and should only be serviced by an authorized HYUNDAIdealer.
Malfunctions caused by improperalterations, adjustments or modifi-cations to the theft-alarm system are not covered by your vehiclemanufacturer warranty.

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487
Features of your vehicle
Climate control air filterThe climate control air filter installed
behind the glove box filters the dust or
other pollutants that come into the vehi-
cle from the outside through the heating
and air conditioning system. If dust or
other pollutants accumulate in the filter
over a period of time, the air flow from the
air vents may decrease, resulting in
moisture accumulation on the inside of
the windshield even when the outside
(fresh) air position is selected. If this hap-
pens, have the climate control air filter
replaced by an authorized HYUNDAI
dealer.
✽NOTICE• Replace the filter according to the
Maintenance Schedule.
If the vehicle is being driven in severe
conditions such as dusty, rough roads,
more frequent climate control air fil-
ter inspections and changes are
required.
• When the air flow rate suddenly decreases, the system should be
checked at an authorized HYUNDAI
dealer.
Checking the amount of air con-
ditioner refrigerant and compres-
sor lubricantWhen the amount of refrigerant is low,
the performance of the air conditioning is
reduced. Overfilling also has a negative
influence on the air conditioning system.
Therefore, if abnormal operation is
found, have the system inspected by an
authorized HYUNDAI dealer.✽ NOTICEIt is important that the correct type and
amount of oil and refrigerant is used.
Otherwise, damage to the compressor
and abnormal system operation may
occur.

OMG075033
Outside air
Recirculatedair
Climate control
air filter Blower
Evaporator
coreHeater core
WARNING
The air conditioning system should
be serviced by an authorized
HYUNDAI dealer. Improper service
may cause serious injury to the
person performing the service.

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Features of your vehicle130
4
CAUTION IN USING
BLUETOOTH
®CELLU-
LAR PHONE
• Do not use a cellular phone or
perform Bluetooth
®settings (e.g.
pairing a phone) while driving.
• Some Bluetooth
®-enabled phones
may not be recognized by the system or fully compatible with the system.
• Before using Bluetooth
®related
features of the audio system, refer to your phone’s User’s Manual for phone-side Bluetooth
®
operations.
•The phone must be paired to the audio system to use Bluetooth
®
related features.• You will not be able to use the hands-free feature when yourphone(in the car) is outside of the cellular service area(e.g. in a tun-nel, in an underground garage, in a mountainous area, etc.)
• If the cellular phone signal is poor or the vehicles interior noise istoo loud, it may be difficult to hearthe other person’s voice during acall.
(Continued)
(continue)• Do not place the phone near or inside metallic objects, otherwise
Communications with Bluetooth
®
system or cellular service sta-tions can be disturbed.
• While a phone is connected through Bluetooth
®
your phone
may discharge quicker than usual for additional Bluetooth
®-related
operations.
• Some cellular phones or other devices may cause interferencenoise or malfunction of the audiosystem. In this case, storing thedevice in a different location may resolve the situation.
• You may not use “Call by name” function because some cellularphones do not support down-loading phonebook intermittently.

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Driving your vehicle16
5
R (Reverse)
Use this position to drive the vehicle
backward. N (Neutral)
The wheels and transaxle are not
engaged. The vehicle will roll freely even
on the slightest incline unless the parking
brake or service brakes are applied.
D (Drive)
This is the normal forward driving posi-
tion. The transaxle will automatically shift
through a 6-gear sequence, providing the
best fuel economy and power.
For extra power when passing another
vehicle or climbing grades, depress the
accelerator fully, at which time the
transaxle will automatically downshift to
the next lower gear.
✽
NOTICEAlways come to a complete stop before
shifting into D (Drive).
CAUTION
The transaxle may be damaged if
you shift into P (Park) while thevehicle is in motion.
CAUTION
Always come to a complete stopbefore shifting into or out of R (Reverse); you may damage thetransaxle if you shift into R(Reverse) while the vehicle is inmotion, except as explained in“Rocking the vehicle” in this sec- tion.

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