cold Hyundai Sonata 2018 Owner's Manual

2-19
Safety system of your vehicle
2
Removal/Reinstallation
To remove the head restraint:
1. Raise the head restraint as far asit can go.
2. Press the head restraint release button (1) while pulling the head
restraint up (2).
To reinstall the head restraint:
1. Put the head restraint poles into the holes (3) while pressing the
release button (1).
2. Adjust the head restraint to the appropriate height.
Seat Warmers and
Air Ventilation Seats
Seat warmers (if equipped)
Seat warmers are provided to warm
the seats during cold weather.
To prevent damage to the seat
warmers and seats:
Never use a solvent such aspaint thinner, benzene, alcohol
or gasoline to clean the seats.
Do not place heavy or sharp objects on seats equipped with
seat warmers.
Do not change the seat cover. It may damage the seat warmer.
NOTICE
OLF034073N
The seat warmers can cause a
serious burn, even at low tem-
peratures and especially if used
for long periods of time.
Passengers must be able to feel
if the seat is becoming too warm
so they can turn it off, if needed.
People who cannot detect tem-
perature change or pain to the
skin should use extreme cau-
tion, especially the following
types of passengers:
Infants, children, elderly or
disabled persons, or hospital
outpatients.
People with sensitive skin or
who burn easily.
Fatigued individuals.
Intoxicated individuals.
(Continued)
WARNING
(Continued)
People taking medication that
can cause drowsiness or
sleepiness.
NEVER place anything on the
seat that insulates against heat
when the seat warmer is in oper-
ation, such as a blanket or seat
cushion. This may cause the
seat warmer to overheat, caus-
ing a burn or damage to the seat.
WARNING

2-55
Safety system of your vehicle
2
After an air bag inflates, take
the following precautions:
Open your windows and doors
as soon as possible after
impact to reduce prolonged
exposure to the smoke and
powder released by the inflat-
ing air bag.
Do not touch the air bag stor-
age area’s internal compo-
nents immediately after an air
bag has inflated. The parts
that come into contact with an
inflating air bag may be very
hot.(Continued)
WARNING
What to Expect After an Air
Bag Inflates
After a frontal or side air bag inflates,
it will deflate very quickly. Air bag
inflation will not prevent the driver
from seeing out of the windshield or
being able to steer. Curtain air bags
may remain partially inflated for
some time after they deploy.
Noise and smoke from inflatingair bag
When the air bags inflate, they make
a loud noise and may produce
smoke and powder in the air inside of
the vehicle. This is normal and is a
result of the ignition of the air bag
inflator. After the air bag inflates, you
may feel substantial discomfort in
breathing because of the contact of
your chest with both the seat belt and
the air bag, as well as from breathing
the smoke and powder. The powder
may aggravate asthma for some
people. If you experience breathing
problems after an air bag deploy-
ment, seek medical attention imme-
diately.
Though the smoke and powder are
nontoxic, they may cause irritation to
the skin, eyes, nose, throat, etc. If
this is the case, wash and rinse with
cold water immediately and seek
medical attention if the symptoms
persist.
(Continued)Always wash exposed skin
areas thoroughly with cold
water and mild soap.
Always have an authorized
HYUNDAI dealer replace the air
bag immediately after deploy-
ment. Air bags are designed to
be used only once.

3-6
Mechanical key
If the remote key does not operate
normally, you can lock or unlock the
door by using the mechanical key.
Press the release button then the key
will unfold automatically.
To fold the key, fold the key manually
while pressing the release button.
Remote key precautions
The remote key will not work if any of
the following occur:
The key is in the ignition switch.
You exceed the operating distancelimit (about 90 feet [30 m]).
The remote key battery is weak.
Other vehicles or objects may be blocking the signal.
The weather is extremely cold.
The remote key is close to a radio transmitter such as a radio station or
an airport which can interfere with
normal operation of the remote key.
When the remote key does not work
correctly, open and close the door
with the mechanical key. If you have
a problem with the remote key con-
tact an authorized HYUNDAI dealer. If the remote key is in close proximi-
ty to your mobile phone, the signal
could be blocked by your mobile
phones normal operational signals.
This is especially important when the
phone is active such as making and
receiving calls, text messaging,
and/or sending/receiving emails.
Avoid placing the remote key and
your mobile phone in the same pants
or jacket pocket and always try to
maintain an adequate distance
between the two devices.
Convenient features of your vehicle
OLF047001

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.
i
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O O
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L O
O C
CK
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S
OLF047009
■ Remote key■Smart key
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3-15
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

3-17
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

3-45
Convenient features of your vehicle
3
Power Windows
The ignition switch must be in the ON
position to be able to raise or lower
the windows. Each door has a Power
Window switch to control that door's
window. The driver has a Power
Window Lock switch which can block
the operation of passenger windows.
The power windows will operate for
approximately 30 seconds after the
ignition switch is placed in the ACC
or LOCK/OFF position. However, if
the front doors are opened, the
Power Windows cannot be operated
even within the 30 second period.
Information
• In cold and wet climates, power win-dows may not work properly due to
freezing conditions.
• While driving with the rear win- dows down or with the sunroof (if
equipped) opened (or partially
opened), your vehicle may demon-
strate a wind buffeting or pulsation
noise. This noise is normal 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 approximately one
inch. If you experience the noise
with the sunroof open, slightly close
the sunroof.
Window opening and closing
To open:
Press the window switch down to the
first detent position (5). Release the
switch when you want the window to
stop.
To close:
Pull the window switch up to the first
detent position (5). Release the win-
dow switch when you want the win-
dow to stop.
i
To avoid serious injury or death,
do not extend your head, arms
or body outside the windows
while driving.
WARNING
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3-48
If your vehicle is equipped with a
sunroof, you can slide or tilt your
sunroof with the sunroof control
switch located on the overhead con-
sole.
The sunroof can only be opened,
closed, or tilted when the ignition
switch is in the ON position.
The sunroof can be operated for
approximately 30 seconds after the
ignition key is removed or turned to
the ACC or LOCK (or OFF) position.
However, if the front door is opened,
the sunroof cannot be operated
even within 30 seconds.
Information
• In cold and wet climates, the sun-roof may not work properly due to
freezing conditions.
• After the vehicle is washed or in a rainstorm, be sure to wipe off any
water that is on the sunroof before
operating it.
Do not continue to move thesunroof control lever after the
sunroof is fully opened, closed,
or tilted. Damage to the motor or
system components could
occur.
Make sure the sunroof is closed fully when leaving your vehicle.
If the sunroof is open, rain or
snow may leak through the sun-
roof and wet the interior as well
as allow theft.
NOTICE
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Convenient features of your vehicle
OLFC044034CN
Never adjust the sunroof or
sunshade while driving. This
could result in loss of control
and an accident that may
cause death, serious injury, or
property damage.
Make sure heads, other body
parts or objects are out of the
way before using the sunroof.
Do not extend your head,
arms or body outside the sun-
roof while driving, to avoid
serious injury.
(Continued)
(Continued)
Do not leave the engine run-
ning and the key in your vehi-
cle with unsupervised chil-
dren.
Unattended children could
operate the sunroof, which
could result in serious injury.
Do not sit on the top of the
vehicle. It may cause injuries
or vehicle damage.
WARNING

3-54
Convenient features of your vehicle- Use the trunk release button.
3. Lift the trunk lid up.
Closing the trunk
Lower the trunk lid and press down
until it locks. To prevent damage to the trunk lift
cylinders and the attached hard-
ware, always close the trunk
before driving.
Information
In cold and wet climates, trunk lock
and trunk mechanisms may not work
properly due to freezing conditions.
i
NOTICE
Make sure there are no people
or objects around the trunk
before opening or closing the
Power Trunk. Wait until the trunk
is open fully and stopped
before loading or unloading
cargo from the vehicle.
WARNING
Always keep the trunk lid com-
pletely closed while the vehicle
is in motion. If it is left open or
ajar, poisonous exhaust gases
containing carbon monoxide
(CO) may enter the vehicle and
serious illness or death may
result.
WARNING
OLF047044
■
Inside

3-55
Convenient features of your vehicle
Emergency trunk safety release
Your vehicle is equipped with an
Emergency Trunk Safety Release
lever located inside the trunk. When
someone is inadvertently locked in
the trunk, the trunk can be opened
by moving the lever in the direction of
the arrow and pushing the trunk
open.
3
OLF047045N
You and your passengers
must be aware of the location
of the Emergency Trunk
Safety Release lever in this
vehicle and how to open the
trunk in case you are acciden-
tally locked in the trunk.
NEVER allow anyone to occu-
py the trunk of the vehicle at
any time. If the trunk is par-
tially or totally latched and the
person is unable to get out,
serious injury or death could
occur due to lack of ventila-
tion, exhaust fumes and rapid
heat build-up, or because of
exposure to cold weather con-
ditions. The trunk is also a
highly dangerous location in
the event of a crash because it
is not a protected occupant
space but is a part of the vehi-
cle's crush zone.(Continued)
(Continued)
Your vehicle should be kept
locked and the Smart Key
should be kept out of the reach
of children. Parents should
teach their children about the
dangers of playing in trunks.
Use the release lever for
emergencies only.
WARNING