2018 Hyundai Sonata ECU

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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3

3-29
Convenient features of your vehicle
3
To adjust the Zone setting:
1. Determine the desired ZoneNumber based upon your current
location on the Zone Map.
2. Press and hold the button for 6 seconds, the current Zone
Number will appear on the display.
3. Pressing and holding the button again will cause the numbers to
increment (Note: they will repeat
…13, 14, 15, 1, 2, …). Releasing
the button when the desired Zone
Number appears on the display
will set the new Zone.
4. Within about 5 seconds the com- pass will start displaying a com-
pass heading again.
There are some conditions that can
cause changes to the vehicle mag-
nets, such as installing a ski rack or
a CB antenna. Body repair work on
the vehicle can also cause changes
to the vehicle’s magnetic field. In
these situations, the compass will
need to be re-calibrated to quickly
correct these changes. If you need to recalibrate the com-
pass:
1. Press and hold the button for
more than 9 seconds. When the
compass memory is cleared a "C"
will appear in the display.
2. Drive the vehicle in 2 complete cir- cles at less than 5 mph (8 km/h).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.

3-32
Convenient features of your vehicle
6. Firmly press and release the "learn" or "smart" button. (The
name and color of the button vary
by manufacturer). There are 30
seconds to initiate step 7.
7. Return to the vehicle and firmly press, hold for 2 seconds and
release the programmed
HomeLink
®button. Repeat the
"press/hold/release" sequence a
second time, and, depending on the
brand of the garage door opener (or
other rolling code equipped device),
repeat this sequence a third time to
complete the programming
process.
HomeLink
®should now activate your
rolling code equipped device.
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 3 in the Programming portion
of this document) while you press
and re-press ("cycle") your handheld
transmitter every two seconds until
the frequency signal has been
learned. The indicator 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 device to HomeLink®
using a HomeLink®button previously
trained, follow these steps:
1.Press and hold the desired HomeLink
®button. DO NOT
release the button.
2.The indicator light will begin to flash after 20 seconds. Without releasing
the HomeLink
®button, proceed
with "Programming" step 2.
For questions or comments, contact
HomeLink
®at www.homelink.comor
1-800-355-3515.

3-36
Convenient features of your vehicle
To adjust the Zone setting:
1. Determine the desired Zone Number based upon your current
location on the Zone Map.
2. Press and hold the button for more than 3 but less than 6 sec-
onds, the current Zone Number
will appear on the display.
3. Pressing and holding the button again will cause the numbers to
increment (Note: they will repeat
…13, 14, 15, 1, 2, …). Releasing
the button when the desired Zone
Number appears on the display
will set the new Zone.
4. Within about 5 seconds the com- pass will start displaying a com-
pass heading again.
There are some conditions that can
cause changes to the vehicle mag-
nets, such as installing a ski rack or
a CB antenna. Body repair work on
the vehicle can also cause changes
to the vehicle’s magnetic field. In
these situations, the compass will
need to be re-calibrated to quickly
correct these changes. If you need to recalibrate the com-
pass:
1. Press and hold the button for
more than 6 seconds. When the
compass memory is cleared a "C"
will appear in the display.
2. Drive the vehicle in 2 complete cir- cles at less than 5 mph (8 km/h).
Integrated HomeLink®Wireless
Control System
The HomeLink®Wireless Control
System can replace up to three hand-
held radio-frequency (RF) transmit-
ters 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 open-
ers, entry door locks, security sys-
tems, even home lighting. Both stan-
dard and rolling code-equipped trans-
mitters can be programmed by fol-
lowing the outlined 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.

3-39
Convenient features of your vehicle
3
5. Press and hold the just-trainedHomeLink®button and observe
the red Status Indicator LED. If the
indicator light stays on constantly,
programming is complete and
your device should activate when
the HomeLink
®button is pressed
and released.
6. To program the remaining two HomeLink
®buttons, follow steps 2
through 5.
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.

3-52
Convenient features of your vehicle
Hood
Opening the hood
1. Park the vehicle and set the park-ing brake.
2. Pull the release lever to unlatch the hood. The hood should pop
open slightly. 3. Raise the hood slightly, push the
secondary latch up (1) inside of
the hood center and lift the hood
(2). After it has been raised about
halfway, it will raise completely by
itself.
Hood open warning (if equipped)
The warning message will appear on
the LCD display when hood is open.
The warning chime will operate when
the vehicle is being driven at or
above 3 km/h with the hood open.
Closing the hood
1. Before closing the hood, check the
following:
ment must be correctly installed.
bustible material must be
removed from the engine com-
partment.
2. Lower the hood halfway (lifted approximately 30 cm from the
closed position) and push down to
securely lock in place. Then dou-
ble check to be sure the hood is
secure.
E EX
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OLF047041
OLF047720N

3-60
Convenient features of your vehicle
3. Pull the fuel filler door (1) out 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.
Information
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 itclockwise until it "clicks" one time.
2. Close the fuel filler door until it is latched securely.i
OLF047052

3-62
Convenient features of your vehicle
Information
Make sure to refuel your vehicle
according to the "Fuel Requirements"
suggested in the Introduction chapter.
Do not spill fuel on the exteriorsurfaces of the vehicle. Any type
of fuel spilled on painted sur-
faces may damage the paint.
If the fuel filler cap requires replacement, use only a genuine
HYUNDAI cap or the equivalent
specified for your vehicle. An
incorrect fuel filler cap can
result in a serious malfunction
of the fuel system or emission
control system.
Emergency fuel filler door release
If the fuel filler door does not open
using the remote fuel filler door
release button, you can open it man-
ually. Pull the release located on the
left side of the trunk compartment.
NOTICE
i
OLF047054N
(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.