2023 HYUNDAI SANTA CRUZ ECU

05
5-23
• Hyundai digital key app may not
work properly when the NFC or
Bluetooth communication between
smartphone and car is not good.
• If the remote control operation
is executed where the mobile
connection is weak, Bluetooth
connection is poor due to lots of
Bluetooth devices or there is an
object such as metal or concrete, it
might be delayed or the operable
distance might decrease. Especially,
you should not cover the smartphone
with your hand or place other
devices which can cause frequency
interference. It may result in poor
performance.
• If the remote control function is not
activated, please use NFC function to
lock or unlock the doors
• You should be careful not to
press the remote control button
on the digital key (smartphone)
accidentally.
• If the digital key (smartphone) is
discharged or defective or you
cannot use the digital key since the
vehicle battery is discharged, use the
inside door lock button to lock all of
the doors. CAUTION
• Hyundai digital key app on the
smartphone and card key may not
work if any of the following occurs:
-Hyundai digital key app on the
smartphone is deleted. (Required
to reinstall the app)
-Account log in information of
Hyundai digital key app is expired.
(Required to re-log in)
-When you try to log in to another
smartphone instead of the
registered smartphone with same
user account.
-Smartphone rooting or app
hacking is detected.
-Smartphone battery or the vehicle
battery is discharged.
-Smartphone’s screen is off or
locked.
-NFC or Bluetooth is turned off on
the smartphone settings.
-Smartphone’s mobile network
setting is off or airplane mode is
activated.
-A credit card is overlapped in the
back of your smartphone or metal
or thick case is used.
-Use the card key with insert it
into the wallet or card holder or
overlapping with other cards.
-If you use a smart phone cover that
uses wireless communication or is
made of metal, the digital key NFC
function may not work properly.
Remove the smart phone cover
before using the digital key NFC
function.

Convenient Features
5-32
Operating Door Locks From
Outside the Vehicle
Mechanical key
ONX4050066ONX4050066
1. Pull out the door handle.
2. Press the release button (1) located
inside the bottom part of the cover
with a mechanical key or flat-head
screwdriver.
3. Carefully pull outward on the cover
while continuing to press the release
button to remove the cover and
expose the key cylinder.
4. Insert the mechanical key into
the key cylinder and rotate
clockwise to unlock the vehicle and
counterclockwise to lock the vehicle.
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
Be careful when locking the door by
mechanical key operation, only the
driver’s door can be locked/unlocked.
Information
• Avoid scratching or breaking the plastic
material. Do not lose the key cylinder
cover.
• In the case of trying to remove the
key cylinder cover in cold climate
or freezing temperatures, use extra
caution. If the key cylinder cover
freezes and cannot be removed easily,
lightly tap on the cover or try to warm
the cover by placing your hands around
it and blowing warm air, etc.
• Do not apply excessive force to the door
and door handle. It may be damaged.
DOOR LOCKS

05
5-33
Remote key
ONX4OB051008ONX4OB051008
To lock the doors, press the Door Lock
button (1) on the remote key.
To unlock the doors, press the Door
Unlock button (2) on the remote key.
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.
Smart key
ODN8059001ODN8059001
Press the button on the driver’s outside
door handle or touch the touch sensor
on the door handle (the engraved part)
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 multiple
times in rapid succession with either
the vehicle key or door lock switch, the
system may stop operating temporarily
in order to protect the circuit and
prevent damage to system components.

Convenient Features
5-34
In case of an emergency
ONX4OB051041ONX4OB051041
If the electrical power door lock switch
is not operating (ex. dead car battery)
the only way to lock the door(s) is with
the mechanical key from the outside key
hole.
Doors without an outside key hole can be
locked as follows:
1. Open the door.
2. Insert the key into the emergency
door lock hole and turn the key
horizontally to lock.
3. Close the door securely.
Information
If the electrical power to door lock switch
is not operating (ex. dead car battery) and
the trunk is closed, you will not be able to
open the trunk until power is restored.
Operating Door Unlocks from
Inside the Vehicle
With the door inside handle
ONX4050004ONX4050004
Driver door & Passenger door
If the inner door handle is pulled when
the door is locked, the door will unlock
and open.
Rear Door - Two Pull Operation
If the inner door handle is pulled once
when the door is locked, the door will
unlock. If the inner door handle is pulled
once more, the door will open.
Information
If a power door lock ever fails to function
while you are in the vehicle try one or
more of the following techniques to exit:
• Operate the door unlock feature
repeatedly (both electronic and
manual) while simultaneously pulling
on the door handle.
• Operate the other door locks and
handles.
• Lower a front window and use the
mechanical key to unlock the door from
outside.

05
5-35
With the driver door lock/unlock
switch
„„Driver’s doorDriver’s door
ONX4050005ONX4050005
„„Front passenger’s doorFront passenger’s door
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When pressing the () portion (1) on the
switch, all vehicle doors will lock.
• If any door is opened, the doors will
not lock even though the lock button
(1) of the driver door lock switch is
pressed.
• If the smart key is in the vehicle and
any door is opened, the doors will not
lock even though the lock button (1) of
the driver door lock switch is pressed.
When pressing the (
) portion (2) on the
switch, all vehicle doors will unlock.
When all vehicle doors are locked, the
indicating lights (3) on the driver’s door
and passenger’s door will turn on. If any
door is unlocked, the indicator will turn
off.
WARNING
• The doors should always be fully
closed and locked while the
vehicle is in motion. If the doors
are unlocked, the risk of being
thrown from the vehicle in a crash is
increased.
• Do not pull the inner door handle of
the driver’s or passenger’s door while
the vehicle is moving.
WARNING
Do not leave children or animals
unattended in your vehicle. An enclosed
vehicle can become extremely hot,
causing death or serious injury to
unattended children or animals who
cannot escape the vehicle. Children
might operate features of the vehicle
that could injure them, or they could
encounter other harm, possibly from
someone gaining entry to the vehicle.
WARNING
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, shift the gear
to the P (Park) position, engage the
parking brake, and place the ignition
switch to the LOCK/OFF position, close
all windows, lock all doors, and always
take the key with you.

05
5-37
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
occur:
- A door is opened without using the
remote key or smart key.
- The tailgate 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 automatically
sets 30 seconds after you lock the
doors and the tailgate. For the system
to activate, you must lock the doors
and tailgate from outside the vehicle by
doing one of the following:
- Using the remote key or smart key
- Pressing the button on the outside of
the door handle with the smart key in
your possession (available with button
type)
- Touching the touch sensor on the
outside of the door handle with
the smart key in your possession
(available with touch sensor type)
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 tailgate, 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 tailgate, or any door is not fully
closed. If the system will not set, check
the hood, the tailgate, 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
passengers 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.
• If the system is disarmed by unlocking
the vehicle, but neither a door or the
tailgate is opened within 30 seconds, the
doors will relock and the system will
rearm automatically.
Information
OHI038181LOHI038181L
Vehicles equipped with a theft alarm
system will have a label attached to the
vehicle with the following words:
1. WARNING
2. SECURITY SYSTEM
7+()7

05
5-43
Electrochromic Mirror with
Homelink System (if equipped)
Your vehicle may be equipped with
a Gentex Automatic-Dimming Mirror
with an Integrated HomeLink® Wireless
Control System.
During nighttime driving, this feature
will automatically detect and reduce
rearview mirror glare. The HomeLink®
Universal Transceiver allows you to
activate your garage door(s), electric
gate, home lighting, etc.
ODN8A059135ODN8A059135
(1) HomeLink Channel 1
(2) HomeLink Channel 2
(3) HomeLink Channel 3
(4) Garage Door Opener Status Indicator:
Closing or Closed
(5) HomeLink Operation Indicator
(6) Garage Door Opener Status Indicator:
Opening or Opened
(7) HomeLink User Interface Indicator
Integrated HomeLink® Wireless Control
System
The HomeLink® Wireless Control System
provides a convenient way to replace
up to three hand held radio-frequency
transmitters used to activate compatible
devices such as gate operators, garage
door openers, entry door locks, security
systems, and home lighting.
NOTICE
HomeLink® operates while the ignition
switch is in the ACC or ON position
for safety reasons. It is to prevent
unintentional security problems from
happening when the vehicle is parked
outside the garage.
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 prevent
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.
For more information, contact
HomeLink® at www.homelink.com, or
call Home-Link customer support at
1-800-355-3515.
It is also recommended that a new
battery be replaced in the handheld
transmitter of the device being trained
to HomeLink® for quicker training and
accurate transmission of the radio
frequency.

05
5-45
2) Programming a New HomeLink®
ODN8H050136NODN8H050136N
1. Press and release the HomeLink
button (1), (2) or (3), you would like
to program. The HomeLink indicator
light (7) will flash orange slowly (if
not, perform the steps of “Erasing
HomeLink Buttons” section, and start
over).
ODN8H050339NODN8H050339N
2. Position the garage door opener
remote 1 – 3 inches (2 – 8cm) away
from the HoleLink buttons.
3. While the HomeLink indicator light (7)
is flashing orange, press and hold the
hand-held remote button. Continue
pressing the handheld remote button
until the HomeLink indicator light (7)
changes from orange to green. You
may now release the handheld remote
button.4. Wait until your garage door comes
to a complete stop, regardless of
position, before proceeding to the
next steps.
5. Press and release the HomeLink
button you are programming and
observe the indicator light.
• If the indicator light remains solid
green, your device should operate
when the HomeLink button is
pressed. At this point, if your device
operates, programming is complete.
• If the indicator light rapidly
flashes green, firmly press, hold
for two seconds and release the
HomeLink button up to three times
in a row slowly to complete the
programming process. Do not press
the HomeLink button rapidly. At
this point if your device operates,
programming is complete. If the
device does not operate, continue
with step 6.
6. At the garage door opener motor,
(security gate motor, etc.) locate the
“Learn”, “Smart”, “Set” or “Program”
button. This can usually be found
where the hanging antenna wire is
attached to the motor-head unit (see
the device’s manual to identify this
button). The name and color of the
button may vary by manufacturer.