2023 HYUNDAI TUCSON HYBRID ECU

05
5-17
Information
After reconnecting the vehicle battery
power supply or charging the battery, it
may take time to operate due to remote
renewal of security information. In this
case, when you lock or unlock the doors
using your smartphone Digital Key, it
may take a little longer for the vehicle to
authenticate. Hold your smartphone near
the NFC door handle sensor for a few
seconds or until you hear the door locks
actuate.
Note that if your vehicle is parked in an
area where cell coverage is weak, the
smartphone Digital Key can still be used on
for a limited number of times to unlock and
start your vehicle.
After starting your vehicle, it is
recommended to leave your smartphone
on the wireless charging pad until cell
phone service is stronger and digital key
authentication can occur.
Once authentication is complete, the
wireless charger will turn on (wireless
charging LED will illuminate).
CAUTION
The engine can be turned on if the
registered smartphone or card key is
placed on the interior authentication
pad (wireless charger). Do not leave
children unattended in the vehicle
when using the smartphone Digital Key.
Serious injury or death can occur.
Do not leave anyone in the vehicle
without knowledge of the Digital Key
system when using the smartphone
Digital Key. Always have the registered
digital key (smartphone) or card key
with you to prevent vehicle theft when
leaving the vehicle.
For more information, refer to the
Engine Start/Stop button in chapter 6.
Remote Features from Your Smartphone
with the Digital Key

App
To use the remote features from your
smartphone with the Digital K
ey app,
make sure Bluetooth is enabled.
Connecting Your Vehicle with Digital Key
1. Open the Hyundai Digital Key app on your smartphone and select your
vehicle within the app.
2. Approach your vehicle with your smartphone in hand. Be sure that
your phone is unlocked and the
app is running. If your vehicle does
not automatically connect, you can
press the connect button on the app.
Remote features on the Digital Key
app will be available as soon as your
vehicle is connected.
Remote Features Using Digital Key
You can perform several vehicle
functions using the Digital Key app,
including door lock/unlock, panic ON/
OFF, remote engine start/stop and
opening the liftgate. The icon for each
function is shown in the Digital Key
app, and will be highlighted when the
operation is performed. Haptic feedback
from your phone will occur when the
icon is selected.
Note that you cannot lock your vehicle
using the Hyundai digital key app if any
of the following occurs:
• The POWER button is in ACC or ON position.
• Any doors are open.
When the smartphone and the vehicle
are connected by the Bluetooth function
but the remote control command
cannot be received over 5 minutes, the
remote control connection is cancelled
automatically.

Convenience Features5-18
CAUTION
• If metallic window tint was applied
to your vehicle, it may cause
bad Bluetooth connection or
performance degradation of the
digital key.
• If multiple users operate the remote
control function simultaneously, the
connection between the digital key
and the vehicle might result in failed
commands. Please connect and
operate the remote control function
only the necessary user.
• When using the remote control
operation, the driver (the remote
control user) should leave the vehicle
after confirming the door lock (the
chime sounds once and the hazard
warning lights blink).
• The remote functions of the Digital
Key app enables the vehicle to be
controlled from a set distance. If
the digital key or the vehicle goes
beyond the operable distance, the
remote control function might be
disconnected or cancelled.
• If the digital key (smartphone) is
connected with the vehicle for the
remote control, the driver with the
key goes far away from the vehicle,
the function might not work.
• If the remote control operation
is executed where the mobile
connection is weak, Bluetooth
connection is poor due to several
Bluetooth devices or there is an
object such as metal or concrete, it
might be delayed or the operable
distance might decrease. 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
available, please use NFC function to
lock or unlock the doors. Remote Start with Digital Key
• Using the Hyundai Digital Key app
on your phone, press the Door Lock
button and then press the Remote
Start button (buttons must be pressed
within about 4 seconds). If all the
doors of your vehicle are closed
(including the hood and the liftgate),
the engine will be automatically
started.
Note that when the remote start
feature is activated, the hazard
warning lights will blink two times
and a chime will sound before engine
startup. Also note the following:
• The climate control system will come on using the same settings from when
you last used the vehicle
• To turn off the engine, press the Remote Engine Stop button within the
Hyundai Digital Key app.
• The engine will remain running for approximately 10 minutes, and then
engine will automatically shut OFF.
• To keep the engine running, access the vehicle and place the smartphone
on the wireless charging pad
(authentication pad) while the engine
is still in remote engine-ON mode.
For more information, refer to the Engine
Start/Stop button in chapter 6.

Convenience Features5-20
CAUTION
• Do not leave the registered digital
key (smartphone) and card key in
your vehicle. Please carry around
your keys all the times.
• If you happen to lose your digital
key (smartphone) or card key
registered as a main user’s key, you
should immediately delete the key
on the vehicle’s key menu. For more
information, refer to the Digital Key
Deletion in this chapter.
• If you registered your digital key
(smartphone) or card key in the
vehicle, a message appears on the
instrument cluster and let you know
the key is registered.
(Message: Digital key(s) active.)
• If you buy a used vehicle, you should
confirm the message and delete the
registered smartphone key and card
key. In this case, you should carry
your smart key.
• If you keep place the NFC card
of the digital key on the interior
authentication pad (wireless
charger) while driving, it may cause a
malfunction of the NFC card.
• You should remove your NFC card
of the digital key on the interior
authentication pad after turning on
the engine.
• 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.

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5-29
DOOR LOCKS
Operating Door Locks from
Outside the Vehicle
Mechanical key
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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 (2) 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
(3).
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
• When removing the key cylinder
cover, use care to 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.

Convenience Features5-30
Remote key
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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
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Touch Sensor Door Handle (if equipped):
To Lock the Doors
While having the Smart Key in your
possession, t
ouch the outer part of the
door handle on or near the handle detent
for about 1 second or until you hear the
door locks actuate.
To Unlock the Doors
Press the Door Unlock button on your
Smart K
ey or, with the Smart Key in your
possession, simply grab the door handle
inside portion to activate the unlock door
touch sensor to unlock the doors.
When closing the door, use enough
force to make sure the 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.

Convenience Features5-32
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 the elderly, children or
animals unattended in your vehicle. An
enclosed vehicle can become extremely
hot, causing death or serious injury
to the elderly, unattended children
or animals who cannot escape from
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 press the Engine
Start/Stop button to the OFF position,
close all windows, lock all doors, and
always take the key with you.
CAUTION
Opening a door when something is
approaching may cause damage or
injury. Be careful when opening doors
and watch for vehicles, motorcycles,
bicycles or pedestrians approaching the
vehicle in the path of the door.
WARNING
Do not remain in your vehicle for long
periods of time during inclement
weather or in extreme temperature
conditions (cold or hot). Doing so may
risk possible injury or even death. Do
not lock the vehicle from the outside
when someone is in the vehicle.
In case of an emergency
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If the electrical power door lock switch
is not operating (for example, 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 liftgate is closed, you will not be able to
open the liftgate until power is restored.

Convenience Features5-34
THEFT-ALARM SYSTEM
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 smart key.
- The liftgate is opened without using the 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 smart key.
The Theft Alarm System automatically
sets 30 seconds after you lock the
doors and the liftgate. For the system to
activate, you must lock the doors and
the liftgate from outside the vehicle with
the smart key or by touching the touch
sensor on the outside of the door handle
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 liftgate, or the hood
without using the smart key will cause
the alarm to activate.
The Theft Alarm System will not set if the
hood, the liftgate, or any door is not fully
closed. If the system will not set, check
the hood, the liftgate, 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
smart key, open the doors by using the
mechanical key and start the engine 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
liftgate is opened within 30 seconds, the
doors will relock and the system will
rearm automatically.

05
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Integrated HomeLink® Wireless Control
System
The HomeLink® Wireless Control System
pr
ovides 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.