2012 Hyundai Elantra key battery

Safety features of your vehicle
40 3
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 may
be 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 for ignition key, and turn the
engine start/stop button to the
OFF position for smart key. Never
remove or replace the air bag
related fuse(s) when the ignition
switch is in the ON position.
Failure to heed this warning will
cause the SRS air bag warning
light to illuminate.

Features of your vehicle
10 4
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 replacement
A 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.
✽ ✽
NOTICE
The circuit inside the smart key can
have a problem if exposed to moisture
or static electricity. If you are unsure
how to use your smart key or replace the
battery, contact an authorized
HYUNDAI dealer.
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.OBH048004
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.

411
Features of your vehicle
1. 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.
CAUTION
The smart key is designed to give
you years of trouble-free use, how-
ever it can malfunction if exposed
to moisture or static electricity. If
you are unsure how to use or
replace the battery, contact an
authorized HYUNDAI dealer.
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.
WARNING
An inappropriately dis-
posed battery can be harm-
ful to the environment and
human health.
Dispose the battery according to
your local law(s) or regulation.

413
Features of your vehicle
Transmitter precautions
✽ ✽
NOTICE
The 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 replacement
The 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 gently
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 keyless
entry system is inoperative due to
exposure 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

Features of your vehicle
22 4
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.
Child-protector rear door lock
The child safety lock is provided to help
prevent children from accidentally open-
ing the rear doors from inside the vehicle.
The rear door safety locks should be
used whenever children are in the vehi-
cle.
1. Open the rear door.
2. Insert a key (or screwdriver) into the
hole (1) and turn it to the lock ( )
position. When the child safety lock is
in the lock position, the rear door will
not open even when the inner door
handle is pulled.3. Close the rear door.
To open the rear door, pull the outside
door handle (2).
Even though the doors may be unlocked,
the rear door will not open by pulling the
inner door handle until the rear door child
safety lock is unlocked.
OMD040007
WARNING- Rear door
locks
If children accidentally open the
rear doors while the vehicle is in
motion, they could fall out of the
vehicle, resulting in severe injury or
death. To prevent children from
opening the rear doors from the
inside, the rear door safety locks
should be used whenever children
are in the vehicle.

Features of your vehicle
56 4
Immobilizer indicator
(if equipped)
Without smart key system
This light illuminates when the immobiliz-
er key is inserted and turned to the ON
position to start the engine.
At this time, you can start the engine. The
light goes out after the engine is running.
If this light blinks when the ignition switch
is in the ON position before starting the
engine, have the system checked by an
authorized HYUNDAI dealer.With smart key system (if equipped)
If any of the following occurs in a vehicle
equipped with the smart key, the immobi-
lizer indicator illuminates, blinks or the
light goes off.
When the smart key is in the vehicle, if
the 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
pressing the engine start/stop button
with the smart key. If smart key system
related parts need repair, the indicator
blinks.
Low fuel level warning light
This 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.

461
Features of your vehicle
LIGHTING
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 remain on for about 20
minutes. However, if the driver’s door is
opened and closed, the headlights are
turned off after 30 seconds.
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.
Headlamp welcome function
(if equipped)
When the headlight switch is in the ON or
AUTO position and all doors (and trunk)
are closed and locked, if you press the
door unlock button on the transmitter (or
the smart key), the headlights will come
on for about 15 seconds. At this time, if
you press the door lock button on the
transmitter (or smart key) the headlights
will turn off immediately.
Daytime running light (if equipped)
Daytime Running Lights (DRL) can make
it easier for others to see the front of your
vehicle during the day. DRL can be help-
ful in many different driving conditions,
and it is especially helpful after dawn and
before sunset.
The DRL system turns OFF when:
1. The headlight are ON.
2. The parking brake is applied.
3. Engine stops.CAUTION
If the driver gets out of the vehicle
through other doors (other than the
driver's door), the battery saver
function does not operate and the
headlamp delay does not turn off
automatically. This will cause the
battery to be discharged. In this
case, make sure to turn off the lamp
before getting out of the vehicle.

Features of your vehicle
68 4
Automatic turn off function
(if equipped)
The interior lights automatically turn off
approximately 20 minutes after the igni-
tion switch is turned off.
If your vehicle is equipped with the theft
alarm system, the interior lights automat-
ically turn off approximately 5 seconds
after the system is in the armed stage.
Map lamp
Push the lens (1) 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.
In the DOOR position, the map
lamp 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.
Map lamp and room lamp stay on
at all times.
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.
OMD040096
INTERIOR LIGHT
CAUTION
Do not use the interior lights for
extended periods when the engine
is not running.
It may cause battery discharge.
WARNING
Do not use the interior lights when
driving in the dark. Accidents could
happen because the view may be
obscured by interior lights.