key battery Hyundai Sonata

343
Safety features of your vehicle
WARNING
• Do not install or place any acces-sories (drink holder, CD or discs
holder, sticker, etc.) on the front
passenger's panel above the
glove box in a vehicle with a pas-
senger's air bag. Such objects
may become dangerous projec-
tiles and cause injury if the pas-
senger's air bag inflates.
• When installing a container of liq- uid air freshener inside the vehi-
cle, do not place it near the
instrument cluster nor on the
instrument panel surface.
It may become a dangerous pro-
jectile and cause injury if the pas-
senger's air bag inflates.

B240B05L
Passenger’s front air bag
WARNING
• If an air bag deploys, there maybe a loud noise followed by a fine
dust released in the vehicle.
These conditions are normal and
are not hazardous - the air bags
are packed in this fine powder.
The dust generated during air
bag deployment may cause skin
or eye irritation as well as aggra-
vate asthma for some persons.
Always wash all exposed skin
areas thoroughly with lukewarm
water and a mild soap after an
accident in which the air bags
were deployed.
• The SRS can function only when the ignition switch is in the ON
position. If the SRS air bag warn-
ing light " " does not illumi-
nate, or continuously remains on
after illuminating for about 6 sec-
onds when the ignition switch is
turned to the ON position, or after
the engine is started, comes on
while driving, the SRS is not
working properly. If this occurs,
have your vehicle immediately
inspected by an authorized
HYUNDAI dealer.
(Continued)

(Continued)
• Before you replace a fuse or dis-connect a battery terminal, turn
the ignition switch to the LOCK
position and remove the ignition
key. Never remove or replace the
air bag related fuse(s) when the
ignition switch is in the ON posi-
tion. Failure to heed this warning
will cause the SRS air gag warn-
ing light to illuminate.

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411
Features of your vehicle
Lock releaseTrunk
1. Open the trunk lid with the mechanicalkey.
2. Set the trunk lid control switch to UNLOCK ( ).
3. Close the trunk lid.
In this position the trunk will open with
the trunk lid release button or smart key.
Glove box
Unlock the glove box using the mechani-
cal key.
Battery replacementA smart key battery should last for sever-
al years, but if the smart key is not work-
ing properly, try replacing the battery with
a new one. If you are unsure how to use
your smart key or replace the battery,
contact an authorized HYUNDAI dealer.
1. Insert a slim tool into the opening and gently pry open the rear cover of the
smart key.
2. Replace the battery with a new battery (CR2032). When replacing the battery,
make sure the battery positive “+” sym-
bol faces up as indicated in the illus-
tration.
3. Install the battery in the reverse order of removal.

OBH048004
CAUTION
• The smart key is designed to give you years of trouble-free use,however it can malfunction ifexposed to moisture or staticelectricity. 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 exposeit to heat or sunlight.
• An inappropriately disposed bat- tery can be harmful to the envi-ronment and human health.
Dispose the battery according toyour local law(s) or regulation.

YF HMA 4-103.QXP 1/12/2010 5:44 PM Page 11

413
Features of your vehicle
Transmitter precautions✽NOTICEThe transmitter will not work if any of
following occur:
• The ignition key is in ignition switch.
• You exceed the operating distance
limit (about 90 feet [30 m]).
• The battery in the transmitter is weak.
• Other vehicles or objects may be blocking the signal.
• The weather is extremely cold.
• The transmitter is close to a radio transmitter such as a radio station or
an airport which can interfere with
normal operation of the transmitter.
When the transmitter does not work
correctly, open and close the door with
the ignition key. If you have a problem
with the transmitter, contact an author-
ized 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.
Battery replacementThe transmitter uses a 3 volt lithium bat-
tery which will normally last for several
years. When replacement is necessary,
use the following procedure.
1. Insert a slim tool into the slot and gen- tly pry open the transmitter center
cover.
2. Replace the battery with a new battery (CR2032). When replacing the battery,
make sure the battery positive “+” sym-
bol faces up.
3. Install the battery in the reverse order of removal.
For replacement transmitters, see an
authorized HYUNDAI dealer for transmit-
ter reprogramming.
CAUTION
Keep the transmitter away from water or any liquid. If the keylessentry system is inoperative due toexposure to water or liquids, it will not be covered by your manufactur-er’s vehicle warranty.
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.

ONF048120

YF HMA 4-103.QXP 12/24/2009 5:09 PM Page 13

Features of your vehicle14
4
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 stageUsing the smart keyPark 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.
3.
• Lock the doors by pressing the button of
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 trunk lid or engine hood remains open,
the hazard warning lights and chime
won't operate and theft-alarm will not
arm. After this, trunk lid and engine hood
are closed, the hazard warning lights
blink once.
CAUTION
• The transmitter is designed to give you years of trouble-freeuse, however it can malfunction ifexposed to moisture or static electricity. If you are unsure howto use your transmitter or replace the battery, contact an authorizedHYUNDAI dealer.
• Using the wrong battery can cause the transmitter to malfunc-tion. Be sure to use the correctbattery.
• To avoid damaging the transmit- ter, don't drop it, get it wet, orexpose it to heat or sunlight.
CAUTION
An inappropriately disposed bat- tery can be harmful to the environ-ment and human health.
Dispose the battery according toyour local law(s) or regulation.
THEFT-ALARM SYSTEM
Armed
stage
Theft-alarm stage
Disarmedstage

YF HMA 4-103.QXP 12/24/2009 5:09 PM Page 14

Features of your vehicle20
4• If the key is in the ignition switch and
front door is open, the doors will not
lock even though the front portion (1)
of central door lock switch is pressed.
• 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 the impact is delivered to impact
sensors while the ignition switch is ON.
However, the doors may not be unlocked
if mechanical problems occur with the
door lock system or battery.✽ NOTICEYou can activate or deactivate some auto
door lock/unlock features in the vehicle
setting as follows;
• Speed sensing auto door lock
• Auto door unlock by unlocking the
driver's door
• Auto door unlock when the ignition key is removed from the ignition
switch or 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
some 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 ignition 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.

YF HMA 4-103.QXP 12/24/2009 5:10 PM Page 20

453
Features of your vehicle
✽NOTICE• If the vehicle is not on level ground or
the battery power has been interrupt-
ed, the “Distance to empty” function
may not operate correctly.
The trip computer may not register
additional fuel if less than 1.6 gallons (6
liters) of fuel are added to the vehicle.
• The fuel consumption and distance to empty values may vary significantly
based on driving conditions, driving
habits, and condition of the vehicle.
• The distance to empty value is an esti- mate of the available driving distance.
This value may differ from the actual
driving distance available.
Vehicle settingWhen the vehicle is at a standstill, press-
ing the TRIP button for more than 2 sec-
onds with the engine start/stop button in
the ON position or engine running, the
LCD screen on the cluster will change to
the vehicle setting mode.
You can change the item by pressing the
TRIP button and choose the item by
pressing the RESET button.
Auto door lockOff - The auto door lock operation will be
canceled.
Speed - All doors will be automatically
locked when the vehicle speed
exceeds 9.3mph (15km/h).
Shift Lever (if equipped) -
All doors will be automatically locked if
the shift lever is shifted from the P(Park)
position to the R(Reverse), N(Neutral) or
D(Drive) position.Auto door unlockOff - The auto door unlock operation will
be canceled.
Key Out - All doors will be automatically
unlocked when the ignition
key is removed from ignition
switch (or smart key is
removed from the smart key
holder).
Door - All doors will be automatically
unlocked if the driver's door is
unlocked inside.
Shift Lever (if equipped) -
All doors will be automatically unlocked if
the shift lever is shifted to the P(Park)
position.

OYF049232N

YF HMA 4-103.QXP 12/24/2009 5:13 PM Page 53

461
Features of your vehicle
• When the smart key is in the vehicle, ifthe engine start/stop button is turned
to the ON position, the indicator will
illuminate until the engine is started.
However, when the smart key is not in
the vehicle, if the engine start/stop but-
ton is depressed, the indicator will blink
for a few minutes to indicate that you
will not be able to start the engine.
• When the ignition switch is turned to the ON position and the indicator turns
off after 2 seconds, the system may
need repair. Have the vehicle checked
by an authorized HYUNDAI dealer.
• When the battery is weak, if the engine start/stop button is depressed, the indi-
cator will blink and you will not be able
to start the engine. However, you may
still be able to start the engine by
inserting the smart key in the smart
key holder. If smart key system related
parts need repair, the indicator blinks.
Low fuel level warning lightThis warning light indicates the fuel tank
is nearly empty. When it comes on, you
should add fuel as soon as possible.
Driving with the fuel level warning light on
or with the fuel level below “E” can cause
the engine to misfire and damage the
catalytic converter.
Malfunction indicator light(MIL) (check engine light) This indicator light is part of the Engine
Control System which monitors various
emission control system components. If
this light illuminates while driving, it indi-
cates that a potential malfunction has
been detected somewhere in the emis-
sion control system.
This light will also illuminate when the
ignition switch is turned to the ON posi-
tion, and will go out in a few seconds
after the engine is started. If it illuminates
while driving, or does not illuminate when
the ignition switch is turned to the ON
position, take your vehicle to your near-
est authorized HYUNDAI dealer and
have the system checked.
Generally, your vehicle will continue to be
drivable, but have the system checked by
an authorized HYUNDAI dealer promptly.

YF HMA 4-103.QXP 12/24/2009 5:13 PM Page 61

Features of your vehicle64
4Key is not detectedIf the smart key is not in the vehicle or is
not detected and you push the engine
start/stop button, the warning illuminates
on the LCD screen for 10 seconds.
Low key batteryWhen the smart key in the vehicle dis-
charges, the warning illuminates on the
LCD screen for 10 seconds.
Replace the battery with a new one. If it
is not possible, you can start the engine
by inserting the smart key into the smart
key holder and pushing the engine
start/stop button.
Press brake pedal to start engineIf the engine start/stop button turns to the
ACC position twice by pushing the
engine start/stop button repeatedly with-
out pressing the brake pedal, the warn-
ing illuminates on the LCD screen for 10
seconds to indicate that you should
press the brake pedal to start the engine.

OYF049063N

OYF049064N

OYF049065N

YF HMA 4-103.QXP 12/24/2009 5:13 PM Page 64

Features of your vehicle68
4The hazard warning flasher should be
used whenever you find it necessary to
stop the car in a hazardous location.
When you must make such an emer-
gency stop, always pull off the road as far
as possible.
The hazard warning lights are turned on
by pushing in the hazard switch. This
causes all turn signal lights to blink. The
hazard warning lights will operate even
though the key is not in the ignition
switch.
To turn the hazard warning lights off,
push the switch a second time.
Battery saver function • The purpose of this feature is to pre-
vent the battery from being dis-
charged. The system automatically
turns off the parking lights when the
driver removes the ignition key (smart
key : turns off the engine) and opens
the driver-side door.
• With this feature, the parking lights will be turned off automatically if the driver
parks on the side of road at night.
If necessary, to keep the lights on
when the ignition key is removed
(smart key : turns off the engine), per-
form the following:
1) Open the driver-side door.
2) Turn the parking lights OFF and ON again using the light switch on the
steering column.
Headlamp delay (if equipped)If you turn the ignition switch to the ACC
or OFF position with the headlights ON,
the headlights (and/or tail lights) remain
on for about 20 minutes. However, if the
driver’s door is opened and closed, the
headlights are turned off after 30 sec-
onds.
The headlights can be turned off by
pressing the lock button on the transmit-
ter (or smart key) twice or turning the
light switch to the OFF or Auto position.
However, if you turn the light switch to the
Auto position when it is dark outside, the
headlights will not be turned off.
HAZARD WARNING FLASHER LIGHTING

OYF049084N

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475
Features of your vehicle
Map lamp Push the lens to turn the map lamp on or
off. This light produces a spot beam for
convenient use as a map lamp at night or
as a personal lamp for the driver and the
front passenger.
• DOOR : In the DOOR position, the maplamp and the room lamp come
on when any door is opened
regardless of the ignition
switch position. When doors are unlocked by
the transmitter (or smart key),
the map lamp and the room
lamp come on for approximate-
ly 30 seconds as long as any
door is not open. The map lamp
and the room lamp goes out
gradually after approximately 30
seconds if the door is closed.
However, if the ignition switch is
ON or all doors are locked, the
map lamp and the room lamp
will turn off immediately. If a
door is opened with the ignition
switch in the ACC or LOCK
position, the map lamp and the
room lamp stay on for about 20
minutes. However, if a door is
opened with the ignition switch
in the ON position, the map
lamp and the room lamp stay on
continuously.
• ON : The light stays on at all times.
• OFF : The lights turn off even if a door is opened.
❈ When the lamp is turned ON
by pressing the lens (1) the
lamp does not turn off even if
the switch (2) is in the OFF
position.

OYF049104K
INTERIOR LIGHT
CAUTION
Do not use the interior lights for
extended periods when the engineis not running.
It may cause battery discharge.

YF HMA 4-103.QXP 12/24/2009 5:14 PM Page 75