2019 Hyundai Sonata Owner's Manual

3-12
Convenient features of your vehicle
Battery replacement
If the Smart Key is not working prop-
erly, try replacing the battery with a
new one.
Battery Type: CR2032
To replace the battery:
1. Pry open the rear cover of thesmart key.
2. Remove the old battery and insert the new battery.
3. Reinstall the rear cover of the smart key. If you suspect your smart key might
have sustained some damage, or
you feel your smart key is not work-
ing correctly, contact an authorized
HYUNDAI dealer.
Information
An inappropriately disposed
battery can be harmful to the
environment and human
health. Dispose the battery
according to your local law(s)
and regulation(s).
Immobilizer System
The immobilizer system protects
your vehicle from theft. If an improp-
erly coded key (or other device) is
used, the engine's fuel system is dis-
abled.
When the ignition switch is placed in
the ON position, the immobilizer sys-
tem indicator should come on briefly,
then go off. If the indicator starts to
blink, the system does not recognize
the coding of the key.
Place the ignition switch to the
LOCK/OFF position, then place the
ignition switch to the ON position
again.
The system may not recognize your
key’s coding if another immobilizer
key or other metal object (i.e., key
chain) is near the key. The engine
may not start because the metal may
interrupt the transponder signal from
transmitting normally.
If the system repeatedly does not
recognize the coding of the key, it is
recommended that you contact your
HYUNDAI dealer.
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OLF044008

3-13
Convenient features of your vehicle
3
Do not attempt to alter this system or
add other devices to it. Electrical
problems could result that may make
your vehicle inoperable.
The transponder in your key is an
important part of the immobilizer
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.Information
This device complies with Part 15 of
the FCC rules.
Operation is subject to the following
three conditions:
1. This device may not cause harmfulinterference, and
2. This device must accept any interfer- ence received, including interference
that may cause undesired operation.
3. Changes or modifications not expressly approved by the party
responsible for compliance could
void the user’s authority to operate
the device.
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NOTICE
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.
WARNING

3-14
Convenient features of your vehicle
Operating Door Locks from
Outside the Vehicle
Mechanical key
If you lock the driver's door with a
mechanical key, all vehicle doors will
lock. If you unlock the driver's door
with a mechanical key, the driver's
door will unlock.
Once the doors are unlocked, they
may be opened by pulling the door
handle.
When closing the door, push the
door by hand. Make sure that doors
are closed securely.
Remote key
To lock the doors, press the Door
Lock button (1) on the remote key.
Press the Door Unlock button (2) on
the remote key, the driver's door will
unlock. If you press the Door Unlock
button on the remote key again with-
in four seconds, then all the doors
will unlock.
Once the doors are unlocked, they
may be opened by pulling the door
handle.
When closing the door, push the
door by hand. Make sure that doors
are closed securely.
Information
• In cold and wet climates, door lockand door mechanisms may not work
properly due to freezing conditions.
• If the door is locked/unlocked multi- ple times in rapid succession with
either the vehicle key or door lock
switch, the system may stop operat-
ing temporarily in order to protect
the circuit and prevent damage to
system components.
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D DO
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S
OLF047009
■ Remote key■Smart key
OLF044470N/Q

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Convenient features of your vehicle
3
Smart key
To lock the doors, press the button
on the outside door handle while car-
rying the Smart Key with you or
press the Door Lock button on the
Smart Key.Press the button on the driver's out-
side door handle while carrying the
Smart Key with you or press the
Door Unlock button on the Smart
Key, the driver's door will unlock. If
you press the button on the front
passenger's outside door, all doors
will unlock.
Once the doors are unlocked, they
may be opened by pulling the door
handle.
When closing the door, push the
door by hand. Make sure that doors
are closed securely.
Information
• In cold and wet climates, door lock
and door mechanisms may not work
properly due to freezing conditions.
• If the door is locked/unlocked multi- ple times in rapid succession with
either the vehicle key or door lock
switch, the system may stop operat-
ing temporarily in order to protect
the circuit and prevent damage to
system components.
Operating Door Locks from
Inside the Vehicle
With the door lock button
To unlock a door, push the doorlock button (1) to the "Unlock" posi-
tion. The red mark (2) on the door
lock button will be visible.
To lock a door, push the door lock button (1) to the "Lock" position. If
the door is locked properly, the red
mark (2) on the door lock button
will not be visible.
To open a door, pull the door han- dle (3) outward.iOLF044010
Unlock
Lock
OLF047002
OLF044003
Door
UnlockDoor Lock

3-16
Convenient features of your vehicle
If the inner door handle of the dri- ver's (or front passenger's) door is
pulled when the door lock button is
in the lock position, the button is
unlocked and door opens.
Front doors cannot be locked if the key is in the ignition switch and any
front door is open.
Doors cannot be locked if the smart key is in the vehicle and any
door is open.
Information
If a power door lock ever fails to func-
tion while you are in the vehicle try
one or more of the following tech-
niques to exit:
• Operate the door unlock featurerepeatedly (both electronic and
manual) while simultaneously
pulling on the door handle.
• Operate the other door locks and handles, front and rear.
• Lower a front window and use the mechanical key to unlock the door
from outside.
With the central door lockswitch
When pressing the ( ) switch (1), all
vehicle doors will lock.
When pressing the ( ) switch (2), all
vehicle doors will unlock.
If the key is in the ignition switch and
any door is opened, the doors will not
lock even though the lock button (1) of
the central door lock switch is pressed.
If the smart key is in the vehicle and
any door is opened, the doors will
not lock even though the lock button
(1) of the central door lock switch is
pressed.
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The doors should always be
fully closed and locked while
the vehicle is in motion. If the
doors are unlocked, the risk of
being thrown from the vehicle
in a crash is increased.
Do not pull the inner door
handle of the driver's or pas-
senger's door while the vehi-
cle is moving.
WARNING
Do not leave children or ani-
mals unattended in your vehi-
cle. An enclosed vehicle can
become extremely hot, causing
death or serious injury to unat-
tended children or animals who
cannot escape the vehicle.
Children might operate features
of the vehicle that could injure
them, or they could encounter
other harm, possibly from
someone gaining entry to the
vehicle.
WARNING
■ Driver's door
OLF044011N/OLF044480N

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Convenient features of your vehicle
3
Auto Door Lock/Unlock Features
Impact sensing door unlocksystem
All doors will be automatically
unlocked when an impact causes the
air bags to deploy.
Speed sensing door lock system
All doors will be automatically locked
when vehicle speed exceeds 9 mph
(15 km/h).
All of the doors will be automatically
unlocked after the engine is turned off.
Shift lever auto door lock
All doors will be automatically locked
when shifting the shift lever out of P
(Park) with the engine running.
You can activate or deactivate the
Auto Door Lock/Unlock features from
the User Settings Mode on the LCD
display.
For more information, refer to the
"LCD Display" section in this
chapter.
Always secure your vehicle.
Leaving your vehicle unlocked
increases the potential risk to
you or others from someone
hiding in your vehicle.
To secure your vehicle, while
depressing the brake, move the
shift lever to the P (Park) posi-
tion, engage the parking brake,
and place the ignition switch in
the LOCK/OFF position, close
all windows, lock all doors, and
always take the key with you.
WARNING
If you stay in the vehicle for a
long time while the weather is
very hot or cold, there are risks
of injuries or danger to life. Do
not lock the vehicle from the
outside when someone is in the
vehicle.
WARNING
Opening a door when some-
thing is approaching may cause
damage or injury. Be careful
when opening doors and watch
for vehicles, motorcycles, bicy-
cles or pedestrians approach-
ing the vehicle in the path of the
door.
CAUTION

3-18
Convenient features of your vehicle
Child-Protector Rear Door locks
The child safety lock is provided to
help prevent children seated in the
rear from accidentally opening the
rear doors. The rear door safety locks
should be used whenever children
are in the vehicle.
The child safety lock is located on
the edge of each rear door. When the
child safety lock is in the lock (1)
position, the rear door will not open if
the inner door handle (2) is pulled.To lock the child safety lock, insert a
screwdriver into the hole and turn it
to the lock position.
To allow a rear door to be opened
from inside the vehicle, unlock the
child safety lock.
If children accidently open the
rear doors while the vehicle is
in motion, they could fall out of
the vehicle. The rear door safety
locks should always be used
whenever children are in the
vehicle.
WARNING
OLF047012

3-19
Convenient features of your vehicle
This system helps to protect your
vehicle and valuables. The horn will
sound and the hazard warning lights
will blink continuously if any of the
following occurs:
- A door is opened without using theremote key or smart key.
- The trunk is opened without using the remote key or smart key.
- The engine hood is opened.
The alarm continues for 30 seconds, then the system resets. To turn off
the alarm, unlock the doors with
the remote key or smart key.
The Theft Alarm System automati-
cally sets 30 seconds after you lock
the doors and the trunk. For the sys-
tem to activate, you must lock the
doors and the trunk from outside the
vehicle with the remote key or smart
key or by pressing the button on the
outside of the door handles with the
smart key in your possession.
The hazard warning lights will blink
and the chime will sound once to
indicate the system is armed. Once the security system is set,
opening any door, the trunk, or the
hood without using the remote key or
smart key will cause the alarm to
activate.
The Theft Alarm System will not set if
the hood, the trunk, or any door is
not fully closed. If the system will not
set, check the hood, the trunk, or the
doors are fully closed.
Do not attempt to alter this system or
add other devices to it.Information
• Do not lock the doors until all pas-
sengers have left the vehicle. If the
remaining passenger leaves the
vehicle when the system is armed,
the alarm will be activated.
• If the vehicle is not disarmed with the remote key or smart key, open the
doors by using the mechanical key
and place the ignition switch in the
ON position (for remote key) or start
the engine (for smart key) by direct-
ly pressing the ignition switch with
the smart key.
• When the system is disarmed but a door or trunk is not opened within 30
seconds, the system will be rearmed.
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