2011 Hyundai Sonata Hybrid engine

Features of your vehicle
4 4
Unlocking
Using the door handle switch
Pressing the button of the driver’s out-
side door handle with all doors closed
and locked, unlocks the driver’s door. The
hazard warning lights will blink and the
chime will sound twice to indicate that the
driver’s door is unlocked. All doors are
unlocked if the button is pressed once
more within 4 seconds. The hazard warn-
ing lights will blink and the chime will
sound twice to indicate that all the doors
are unlocked.
Pressing the button of the front passen-
ger’s outside door handle with all doors
closed and locked, unlocks all the doors.
The hazard warning lights will blink and
the chime will sound twice to indicate that
all doors are unlocked. The button will
only operate when the smart key is with-
in 28~40 in. (0.7~1 m) from the outside
door handle.
When the smart key is recognized in the
area of 28~40 in. (0.7~1 m) from the front
outside door handle, other people can
also open the doors without possession
of the smart key.
After pressing the button, the doors will
lock automatically unless you open any
door within 30 seconds.Using the button on the smart key
The driver's door is unlocked if the unlock
button(2) is pressed once. The hazard
warning lights will blink and the chime will
sound twice to indicate that the driver's
door is unlocked.
All doors are unlocked if the unlock button
is pressed once more within 4 seconds.
The hazard warning lights will blink and
chime will sound twice again to indicate
that all doors are unlocked.
After pressing this button, the doors will
lock automatically unless you open any
door within 30 seconds.
Trunk unlocking
Using the trunk handle switch
If you are within 28~40 in. (0.7~1 m) from
the outside trunk handle with your smart
key in your possession, the trunk will
unlock when you press the trunk handle
switch.
Also, once the trunk is opened and then
closed, the trunk will be locked automati-
cally.
Using the button on the smart key
The trunk is opened if the trunk unlock but-
ton(3) is pressed for more than 1 second.
Once the trunk is opened and then closed,
the trunk will lock automatically.
Panic
The horn sounds and hazard warning
lights flash for about 30 seconds if this
button(4) is pressed for more than 1 sec-
ond. To stop the horn and lights, press
any button on the smart key.
Start-up
You can start the engine without inserting
the key. For detailed information refer to
the “Engine start/stop button” in section 5.

47
Features of your vehicle
Immobilizer system
Your vehicle is equipped with an electron-
ic engine immobilizer system to reduce
the risk of unauthorized vehicle use.
Your immobilizer system is comprised of
a small transponder in the smart key and
electronic devices inside the vehicle.
With the immobilizer system, whenever
you turn the engine start/stop button to
the ON position by pressing the button
while carrying the smart key, it checks
and determines and verifies if the smart
key is valid or not.
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 deactivate the immobilizer sys-
tem:
Turn the engine start/stop button to the
ON position by pressing the button while
carrying the smart key.
To activate the immobilizer system:
Turn the engine start/stop button to the
OFF position. The immobilizer system
activates automatically. Without a valid
smart key for your vehicle, the engine will
not start.
CAUTION
The smart key is designed to give
you years of trouble-free use,
however it can malfunction if
exposed to moisture or static
electricity. If you are unsure how
to use or replace the battery, con-
tact an authorized HYUNDAI deal-
er.
Using the wrong battery can
cause the smart key to malfunc-
tion. Be sure to use the correct
battery.
To avoid damaging the smart key,
don't drop it, get it wet, or expose
it to heat or sunlight.
An inappropriately disposed bat-
tery can be harmful to the envi-
ronment and human health.
Dispose the battery according to
your local law(s) or regulation.
WARNING
In order to prevent theft of your vehi-
cle, do not leave spare keys any-
where in your vehicle. Your
Immobilizer password is a customer
unique password and should be
kept confidential. Do not leave this
number anywhere in your vehicle.

Features of your vehicle
8 4
✽
✽
NOTICE
When 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.
✽ ✽
NOTICE
If you need additional keys or lose your
keys, consult an authorized HYUNDAI
dealer.
This device complies with Part 15 of
the FCC rules.
Operation is subject to the following two
conditions:
1. This device may not cause harmful
interference, and
2. This device must accept any interfer-
ence received, including interference
that may cause undesired operation.
WARNING
Changes or modifications not
expressly approved by the party
responsible for compliance could
void the user’s authority to operate
the equipment. If the keyless entry
system is inoperative due to
changes or modifications not
expressly approved by the party
responsible for compliance, it will
not be covered by your manufactur-
er’s vehicle warranty.
CAUTION
The transponder in your smart key
is an important part of the immobi-
lizer system. It is designed to give
years of trouble-free service, how-
ever you should avoid exposure to
moisture, static electricity and
rough handling. Immobilizer sys-
tem malfunction could occur.
CAUTION
Do not change, alter or adjust the
immobilizer system because it
could cause the immobilizer sys-
tem to malfunction and should only
be serviced by an authorized
HYUNDAI dealer.
Malfunctions caused by improper
alterations, adjustments or modifi-
cations to the immobilizer system
are not covered by your vehicle
manufacturer warranty.
CAUTION
Do not put metal accessories near
the smart key.
The engine may not start because
the metal accessories may interrupt
the transponder signal from trans-
mitting normally.

49
Features of your vehicle
THEFT-ALARM SYSTEM
This system is designed to provide pro-
tection from unauthorized entry into the
vehicle. This system is operated in three
stages: the first is the "Armed" stage, the
second is the "Theft-alarm" stage, and
the third is the "Disarmed" stage. If trig-
gered, the system provides an audible
alarm with blinking of the hazard warning
lights.
Armed stage
Park the vehicle and stop the engine.
Arm the system as described below.
1. Turn off the engine.
2. Make sure that all doors, the engine
hood and trunk lid are closed and
latched.

the front outside door handle with the
smart key in your possession.
After completion of the steps above, the
hazard warning lights and chime will
operate once to indicate that the system
is armed.
If any door remains open, the doors won't
lock and the chime will sound for 3 sec-
onds. Close the door and try again to lock
the doors.
If the trunk lid or engine hood remains
open, the hazard warning lights and
chime won't operate and the theft-alarm
will not arm. After closing the trunk lid
and engine hood, the hazard warning
light blink once.
ton on the smart key.
After completion of the steps above, the
hazard warning lights and chime will
operate once to indicate that the system
is armed.
and chime won't operate and the theft-
alarm will not arm. After closing all doors,
trunk lid and engine hood, the hazard
warning lights blink once.
Do not arm the system until all pas-
sengers have left the vehicle. If the
system is armed while a passenger(s)
remains in the vehicle, the alarm may
be activated when the remaining pas-
senger(s) leave the vehicle. If any
door or trunk or engine hood is
opened within 30 seconds after the
system enters the armed stage, the
system is disarmed to prevent an
unnecessary alarm.
Armed
stage
Theft-alarm
stageDisarmed
stage

Features of your vehicle
10 4
Theft-alarm stage
The alarm will be activated if any of the
following occurs while the system is
armed.
A door is opened without using the
smart key.
The trunk is opened without using the
smart key.
The engine hood is opened.
The horn will sound and the hazard
warning lights will blink continuously for
approximately 30 seconds, and the alarm
will repeat once more unless the system
is disarmed. To turn off the system,
unlock the doors with the smart key.
Opening the trunk with the alarm
armed (if equipped)
When the alarm is armed, the alarm will
not sound if the trunk lid is opened with
smart key.
Once the trunk is opened and then
closed, the trunk will be locked automati-
cally and the system will be armed again.
Also, if any of the doors or hood is
opened while the trunk lid is open and
the alarm is armed, the alarm will sound.
Disarmed stage
The 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.
✽ ✽
NOTICE- Smart key system
• If the system is not disarmed with the
smart key, 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 could
cause the theft-alarm system to
malfunction and should only be
serviced by an authorized HYUNDAI
dealer.
Malfunctions caused by improper
alterations, adjustments or modifi-
cations to the theft-alarm system
are not covered by your vehicle
manufacturer warranty.

413
Features of your vehicle
If the smart key is in the vehicle and
any door is open, the doors will not
lock even though the front portion(1) of
central door lock switch is pressed.Impact sensing door unlock system
(if equipped)
All doors will be automatically unlocked
when a significant impact is sensed by
the impact sensors while the engine start
/stop button is ON. However, the doors
may not automatically unlock if mechani-
cal damage is sustained by the door lock
system or battery.
✽ ✽
NOTICE
You can activate or deactivate some auto
door lock/unlock features as follows:
• Speed sensing auto door lock
• Auto door unlock by unlocking the
driver's door
• Auto door unlock when the smart key
is removed from the smart key holder.
• Auto door lock/unlock by shifting the
transmission shift lever out of P
(Park) or into P (Park)
If you want to activate or deactivate a
door lock/unlock feature, refer to the
"vehicle setting" in this chapter.
WARNING- Unlocked
vehicles
Leaving your vehicle unlocked can
invite theft or possible harm to you
or others from someone hiding in
your vehicle while you are gone.
Always remove the smart key,
engage the parking brake, close all
windows and lock all doors when
leaving your vehicle unattended.
WARNING- Unattended
children
An enclosed vehicle can become
extremely hot, causing death or
severe injury to unattended chil-
dren or animals who cannot escape
the vehicle. Furthermore, children
might operate features of the vehi-
cle that could injure them, or they
could encounter other harm, possi-
bly from someone gaining entry to
the vehicle. Never leave children or
animals unattended in your vehicle.
WARNING - Doors
The doors should always be fully
closed and locked while the vehi-
cle is in motion to prevent acci-
dental opening of the door.
Locked doors will also discour-
age potential intruders when the
vehicle stops or slows.
Be careful when opening doors
and watch for vehicles, motorcy-
cles, bicycles or pedestrians
approaching the vehicle in the
path of the door. Opening a door
when something is approaching
can cause damage or injury.

Features of your vehicle
18 4
Power windows
The engine start/stop button must be in
the ON position for power windows to
operate.
Each door has a power window switch
that controls the door's window. The driv-
er has a power window lock switch which
can block the operation of passenger
windows. The power windows can be
operated for approximately 30 seconds
after the engine start/stop button is
turned to the ACC or LOCK position.
However, if the front doors are opened,
the power windows cannot be operated
even within the 30 second period.
✽ ✽
NOTICE
While driving with the rear windows
down or with the sunroof (if equipped) in
an open (or partially open) position, your
vehicle may demonstrate a wind buffet-
ing or pulsation noise. This noise is a
normal occurrence and can be reduced
or eliminated by taking the following
actions. If the noise occurs with one or
both of the rear windows down, partially
lower both front windows approximate-
ly one inch. If you experience the noise
with the sunroof open, slightly reduce the
size of the sunroof opening.
Window opening and closing
To open or close a window, press down
or pull up the front portion of the corre-
sponding switch to the first detent posi-
tion (5).
Auto down window (if equipped)
(driver’s window)
Pressing the power window switch
momentarily to the second detent posi-
tion (6) completely lowers the driver’s
window even when the switch is
released. To stop the window at the
desired position while the window is in
operation, momentarily pull the switch in
the direction opposite of the window
movement.
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419
Features of your vehicle
Auto up/down window (if equipped)
Pressing or pulling up the power window
switch momentarily to the second detent
position (6) completely lowers or lifts the
window even when the switch is released.
To stop the window at the desired position
while the window is in operation, momen-
tarily pull the switch in the direction oppo-
site of the window’s movement.
If the power window is not operated cor-
rectly, the automatic power window system
must be reset as follows:
1. Turn the engine start/stop button to the
ON position.
2. Close driver’s windows and continue
pulling up on the power window switch
for at least 1 second after the window is
completely closed.Automatic reversal
If the upward movement of the window is
blocked by an object or part of the body,
the window will detect the resistance and
will stop upward movement. The window
will then lower approximately 11.8 in. (30
cm) to allow the object to be cleared.
If the window detects the resistance
while the power window switch is pulled
up continuously, the window will stop
upward movement then lower approxi-
mately 1 in. (2.5 cm). If the power window
switch is pulled up continuously again
within 5 seconds after the window is low-
ered by the automatic window reversal
feature, the automatic window reversal
will not operate.
✽ ✽
NOTICE
The automatic reverse feature for the
driver’s window is only active when the
“auto up” feature is used by fully
pulling up the switch. The automatic
reverse feature will not operate if the
window is raised using the halfway posi-
tion on the power window switch.
WARNING
Always check for obstructions
before raising any window to avoid
injuries or vehicle damage. If an
object less than 0.16 in. (4 mm) in
diameter is caught between the
window glass and the upper win-
dow channel, the automatic reverse
window may not detect the resist-
ance and will not stop and reverse
direction.OUN026013OYF049015