2016 Hyundai Elantra ECU

Features of your vehicle
20
4
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 the
remote 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, open-
ing 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.✽ ✽
NOTICE
• 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 directly pressing the Engine
Start/Stop button 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.
THEFT-ALARM SYSTEM

421
Features of your vehicle
Opening the trunk
1. Make sure the shift lever is in P(Park, for automatic transaxle) or first
gear or R (Reverse, for manual
transaxle) and set the parking brake.
2. Perform one of the following:
- Press the remote key or smartkey Trunk Unlock button for more
than one second.
- Press the button on the trunk itself with the smart key in your
possession.
- Press the button on the trunk itself when all doors are unlocked.
- Use the mechanical key. - Use the trunk release lever.
Closing the trunk
Lower the trunk lid and press down
until it locks. To be sure the trunk lid
is securely fastened, always check
by trying to pull it up again.
✽ ✽
NOTICE
In cold and wet climates, trunk locks
and trunk mechanisms may not
work properly due to freezing condi-
tions.
TRUNK
OMD040013A
■ Outside
WARNING
Make sure there are no people
or objects around the trunk
before opening or closing the
trunk.
OMD040014
■ Inside

Features of your vehicle
30
4
Closing the hood
1. Before closing the hood, check the
following:
ment must be correctly installed.
bustible material must be removed
from the engine compartment.
2. Return the support rod to its clip to prevent it from rattling.
3. Lower the hood halfway and push down to securely lock in place.
Then double check to be sure the
hood is secure.
WARNING
Before closing the hood,ensure that all obstructions
are removed from the hood
opening.
Always double check to be sure that the hood is firmly
latched before driving away. If
it is not latched, the hood
could open while the vehicle
is being driven, causing a
total loss of visibility, which
might result in an accident.
Do not move the vehicle with the hood in the raised posi-
tion, as vision is obstructed,
which might result in an acci-
dent, and the hood could fall
or be damaged.
WARNING - Support rod
Grasp the support rod in the area wrapped in rubber. The
rubber will help prevent you
from being burned by hot
metal when the engine is hot.
The support rod must be inserted completely into the
hole provided whenever you
inspect the engine compart-
ment. This will prevent the
hood from falling and possi-
bly injuring you.

431
Features of your vehicle
Opening the fuel filler door
The fuel filler door must be opened
from inside the vehicle by pulling up
the fuel filler door opener.
1. Turn the engine off.
2. Pull the fuel filler door opener uplocated on the floor, left side of the
driver’s seat. 3. Pull the fuel filler door out (1) to
fully open.
4. To remove the fuel tank cap (2), turn it counterclockwise. You may
hear a hissing noise as the pres-
sure inside the tank equalizes.
5. Place the cap on the fuel filler door.
✽ ✽ NOTICE
If the fuel filler door does not open
because ice has formed around it,
tap lightly or push on the door to
break the ice and release the door.
Do not pry on the door. If necessary,
spray around the door with an
approved de-icer fluid (do not use
radiator anti-freeze) or move the
vehicle to a warm place and allow
the ice to melt.
Closing the fuel filler door
1. To install the fuel tank cap, turn it
clockwise until it “clicks” one time.
2. Close the fuel filler door until it is latched securely.
FUEL FILLER DOOR
OMD044025
OMD040024

433
Features of your vehicle
✽
✽NOTICE
• Make sure to refuel your
vehicle according to the "Fuel
Requirements" suggested in chap-
ter 1.
• Do not spill fuel on the exterior surfaces of the vehicle. Any type of
fuel spilled on painted surfaces
may damage the paint.(Continued)
When refueling, always move
the shift lever to the P (Park)
position (for automatic
transaxle) or first gear or R
(Reverse, for manual transaxle),
set the parking brake, and place
the ignition switch to the
LOCK/OFF position. Sparks
produced by electrical compo-
nents related to the engine can
ignite fuel vapors causing a fire.
Do not use matches or a lighter and do not smoke or
leave a lit cigarette in your
vehicle while at a gas station,
especially during refueling.
Do not over-fill or top-off your vehicle tank, which can cause
gasoline spillage.
(Continued)(Continued)
If a fire breaks out during refu-eling, leave the vicinity of the
vehicle, and immediately con-
tact the manager of the gas
station and then contact the
local fire department. Follow
any safety instructions they
provide.
If pressurized fuel sprays out, it can cover your clothes or
skin and thus subject you to
the risk of fire and burns.
Always remove the fuel cap
carefully and slowly. If the cap
is venting fuel or if you hear a
hissing sound, wait until the
condition stops before com-
pletely removing the cap.
Always check that the fuel cap is installed securely to pre-
vent fuel spillage in the event
of an accident.
CAUTION
If the fuel filler cap requiresreplacement, use only a genuineHYUNDAI cap or the equivalentspecified for your vehicle. Anincorrect fuel filler cap canresult in a serious malfunctionof the fuel system or emissioncontrol system.

Features of your vehicle
44
4
The auto-dimming function can be
controlled by pressing the ON/OFF
button:
1. Pressing the OFF button (7) turns
the auto-dimming function off
which is indicated by the green
Status Indicator LED turning off.
2. Pressing the ON button (6) again turns the auto-dimming function
on which is indicated by the green
Status Indicator LED turning on.
The mirror defaults to the ON posi-
tion each time the vehicle is started. Integrated HomeLink®Wireless
Control System
The HomeLink
®Wireless Control
System can replace up to three
hand-held radio-frequency (RF)
transmitters with a single built-in
device. This innovative feature will
learn the radio frequency codes of
most current transmitters to operate
devices such as gate operators,
garage door openers, entry door
locks, security systems, even home
lighting. Both standard and rolling
code-equipped transmitters can be
programmed by following the out-
lined procedures.
Additional HomeLink
®information
can be found at: www.homelink.com
or by calling 1-800-355-3515.
Retain the original transmitter of the
RF device you are programming for
use in other vehicles as well as for
future HomeLink
®programming. It is
also suggested that upon the sale of
the vehicle, the programmed
HomeLink
®buttons be erased for
security purposes.
WARNING
Before programming
HomeLink®to a garage door
opener or gate operator, make
sure people and objects are out
of the way of the device to pre-
vent potential harm or damage.
Do not use the HomeLink
®with
any garage door opener that
lacks the safety stop and
reverse features required by
U.S. federal safety standards
(this includes any garage door
opener model manufactured
before April 1, 1982). A garage
door that cannot detect an
object - signaling the door to
stop and reverse - does not
meet current U.S. federal safety
standards. Using a garage door
opener without these features
increases the risk of serious
injury or death.

447
Features of your vehicle
Gate operator & Canadian program-ming
During programming, your handheld
transmitter may automatically stop
transmitting. Continue to press the
Integrated HomeLink
®Wireless
Control System button (note
steps 2 through 4 in the Standard
Programming portion of this docu-
ment) while you press and re-press
("cycle") your handheld transmitter
every two seconds until the frequen-
cy signal has been learned. The indi-
cator light will flash slowly and then
rapidly after several seconds upon
successful training.
Operating HomeLink®
To operate, simply press and release
the programmed HomeLink®button.
Activation will now occur for the
trained device (i.e. garage door
opener, gate operator, security sys-
tem, entry door lock, home/office
lighting, etc.). For convenience, the
hand-held transmitter of the device
may also be used at any time.
Reprogramming a single HomeLink®
button
To program a new device to a previ-
ously trained HomeLink®button, fol-
low these steps:
1. Press and hold the desired HomeLink
®button. Do NOT
release until step 4 has been com-
pleted.
2. When the indicator light begins to flash slowly (after 20 seconds),
position the handheld transmitter 1
to 3 inches away from the
HomeLink
® surface.
3. Press and hold the handheld transmitter button. The HomeLink
®
indicator light will flash, first slowly
and then rapidly.
4. When the indicator light begins to flash rapidly, release both buttons.
5. Press and hold the just-trained HomeLink
®button and observe
the red Status Indicator LED. If the
indicator light stays on constantly,
programming is complete and
your new device should activate.
Erasing HomeLink®buttons
Individual buttons cannot be erased.
However, to erase all three pro-
grammed buttons:
1. Press and hold the two outer HomeLink
®buttons until the indi-
cator light begins to flash-after 20
seconds.
2. Release both buttons. Do not hold for longer than 30 seconds.
The Integrated HomeLink
®Wireless
Control System is now in the training
(learn) mode and can be pro-
grammed at any time following the
appropriate steps in the
Programming chapters above.

467
Features of your vehicle
Door Ajar Warning Light
This warning light illuminates:
When a door is not closed securely.
Trunk Open WarningLight
This warning light illuminates:
When the trunk is not closed secure-
ly.
Electronic StabilityControl (ESC) IndicatorLight
This indicator light illuminates:
Once you set the ignition switch or Engine Start/Stop Button to the ON
position.
- It illuminates for approximately 3seconds and then goes off.
When there is a malfunction with the ESC system.
In this case, have your vehicle
inspected by an authorized
HYUNDAI dealer.
This indicator light blinks:
While the ESC is operating.
For more details, refer to “Electronic
Stability Control (ESC)” in chapter 5.
Electronic Stability Control (ESC) OFFIndicator Light
This indicator light illuminates:
Once you set the ignition switch or Engine Start/Stop Button to the ON
position.
- It illuminates for approximately 3seconds and then goes off.
When you deactivate the ESC sys- tem by pressing the ESC OFF but-
ton.
For more details, refer to “Electronic
Stability Control (ESC)” in chapter 5.