
03
3-61
Do not install a Child Restraint 
System on the Front Passenger’s 
Seat
OHI039193N
Even though your vehicle is equipped 
with the OCS, never install a child 
restraint in the front passenger’s seat. 
An inflating air bag can forcefully strike a 
child or child restraint resulting in serious 
or fatal injury.
 WARNING
NEVER use a rearward facing Child 
Restraint on a seat protected by an 
ACTIVE AIRBAG in front of it, DEATH 
or SERIOUS INJURY to the CHILD can 
occur.
Why didn’t my air bag go off in a 
collision?
There are certain types of accidents in 
which the air bag would not be expected 
to provide additional protection. These 
include rear impacts, second or third 
collisions in multiple impact accidents, 
as well as low speed impacts. Damage to 
the vehicle indicates a collision energy 
absorption, and is not an indicator of 
whether or not an air bag should have 
inflated.
Air bag collision sensors
 WARNING
To reduce the risk of an air bag 
deploying unexpectedly and causing 
serious injury or death:
•	Do not hit or allow any objects to 
impact the locations where air bags 
or sensors are installed.
•	 Do not perform maintenance on or 
around the air bag sensors. If the 
location or angle of the sensors is 
altered, the air bags may deploy 
when they should not or may not 
deploy when they should.
•	 Installing bumper guards with non-
genuine Hyundai or non-equivalent 
parts may adversely affect the 
collision and airbag deployment 
performance.
•	 Press the Engine Start/Stop button to 
the OFF or ACC position and wait for 
3 minutes when the vehicle is being 
towed to prevent inadvertent air bag 
deployment.
•	 We recommend that all air bag 
repairs are conducted by an 
authorized HYUNDAI dealer.   

3-62
Seats & Safety System
ONX4030041/ONX4030042/ONX4030056/ONX4030044/ONX4030043/ONX4030045
1. SRS control module / Rollover sensor
2. Front impact sensor
3. Side impact sensor (Pressure)
4. Side impact sensor (Acceleration)
5. Side impact sensor (Acceleration)   

03
3-63
Air bag inflation conditions
ONX4030046
Front air bags
Front air bags are designed to inflate 
in a frontal collision depending on the 
severity of impact of the front collision.
ONX4030050
OTM030033
Side and curtain air bags
Side and curtain air bags are designed 
to inflate when an impact is detected 
by side collision sensors depending on 
the severity, speed or angles of impact 
resulting from a side impact collision.
Although the driver’s and front 
passenger’s air bags are designed to 
inflate in frontal collisions, they also may 
inflate in other types of collisions if the 
front impact sensors detect a sufficient 
impact. Side and curtain air bags are 
designed to inflate in side impact 
collisions, but they may inflate in other 
collisions if the side impact sensors 
detect a sufficient impact.
Also, the side and curtain air bags are 
designed to inflate when a rollover 
is detected by a rollover sensor. (if 
equipped with rollover sensor)
If the vehicle chassis is impacted by 
bumps or objects on unimproved roads, 
the air bags may deploy. Drive carefully 
on unimproved roads or on surfaces not 
designed for vehicle traffic to prevent 
unintended air bag deployment.   

Seats & Safety System
3-64
Air bag non-inflation conditions
ONX4030047
In certain low-speed collisions the air 
bags may not deploy. The air bags are 
designed not to deploy in such cases 
because they may not provide benefits 
beyond the protection of the seat belts.
ONX4030048
Front air bags are not designed to inflate 
in rear collisions, because occupants 
are moved backward by the force of the 
impact. In this case, inflated air bags 
would not provide any additional benefit.
ONX4030049
Front air bags may not inflate in side 
impact collisions, because occupants 
move in the direction of the collision, 
and thus in side impacts, front air bag 
deployment would not provide additional 
occupant protection.
However, side and curtain air bags 
and front center air bag may inflate 
depending on the severity of impact.
OTM030034
In an angled collision, the force of impact 
may direct the occupants in a direction 
where the air bags would not be able to 
provide any additional benefit, and thus 
the sensors may not deploy any air bags.    

03
3-65
ONX4030051
Just before impact, drivers often brake 
heavily. Such heavy braking lowers the 
front portion of the vehicle causing it 
to “ride” under a vehicle with a higher 
ground clearance. Air bags may not 
inflate in this “underride” situation 
because deceleration forces that are 
detected by sensors may be significantly 
reduced by such “underride” collisions.
ONX4030053
Front air bags may not inflate in 
rollover accidents because front air bag 
deployment would not provide additional 
occupant protection.
However, the side and curtain air bags 
and front center air bag may inflate in a 
rollover situation, when it is detected by 
the rollover sensor.
ONX4030052
Air bags may not inflate if the vehicle 
collides with objects such as utility poles 
or trees, where the point of impact is 
concentrated and the collision energy is 
absorbed by the vehicle structure.   

05
5-9
Note that if you press the outside door 
handle to lock the doors using the touch 
sensor, the doors will not lock under the 
following circumstances:
•	The Smart Key is in the vehicle
•	 The Engine Start/Stop button is in the 
ACC or ON position
•	 Any of the doors are open (except for 
the liftgate)
If this occurs, then a chime will sound 
for about 3 seconds.  Check the vehicle 
before attempting to lock the car again.
 CAUTION
Before you leave your vehicle with the 
Smart Key, verify that your vehicle is 
locked.  When using the touch sensor 
on the front door handle, listen to hear 
that the lock has actuated, and then 
pull the handle within 3 seconds to 
confirm the doors are locked.
(if it has been longer than 3 seconds, 
verify the doors are locked by pressing 
the lock button on the Smart Key.  You 
will hear a single beep.)
 WARNING
Do not leave the Smart Key in 
your vehicle with children that are 
unattended or unsupervised.
Children could inadvertently press 
the Engine Start/Stop button or could 
operate the power windows or other 
vehicle controls or even cause the 
vehicle to move.  This could result in 
serious injury or death.
Unlocking your vehicle
Button type
ODN8059001
Touch sensor type
ODN8059235
1.  Make sure you have the smart key in 
your possession.
2. Press the Door Unlock button (2) on 
the Smart Key or simply grab the door 
handle inside portion to activate the 
unlock door touch sensor to unlock 
the doors.   

Convenient features
5-18
Set up main vehicle
You can manage multiple digital keys 
from the Digital key app. From the list of 
digital keys you own, select the vehicle 
you want to make your priority vehicle.
For more information, please refer to 
the ‘Tutorial’ on your Digital key app.
ONX4050001
[1] : Door handle authentication pad,  
[2]:  NFC Antenna
NFC door lock/unlock
To unlock your vehicle using the 
smartphone Digital Key, position your 
phone near the door handle NFC touch 
sensor of either the driver side or 
passenger side door.  Hold your phone 
near the touch sensor area for about 2 
seconds.  You will hear the doors lock or 
unlock.
If you unlock your vehicle from the 
passenger side door handle, then all the 
doors will unlock.  If you unlock your 
vehicle from the driver side door handle, 
then either the driver door only or all 
the doors will unlock depending on the 
setting of the Two Press Unlock feature.  
Refer to User Settings to change the 
Driver Door unlock mode.
To lock your vehicle using the 
smartphone Digital Key, position your 
phone near the door handle NFC touch 
sensor of either the driver side or 
passenger side door.  Before you leave your vehicle, verify that 
your vehicle is locked.  When using your 
smartphone Digital Key on the front door 
handle, listen to hear that the door lock 
has actuated, and then pull the handle 
within 3 seconds to confirm the doors 
are locked.
Note that you will not be able to lock 
your vehicle using your smartphone 
Digital Key under the following 
circumstances:
•	
The Proximity / Smart Key is in the 
vehicle.
•	 The POWER button is in ACC or ON 
position.
•	 Any of the doors, hood and trunk is 
opened.
•	 The vehicle battery is discharged
If the smartphone Digital Key does not 
work properly, try again by removing the 
smartphone away from the door handle 
(more than 4 inches) and try it again.
Note that when the doors have been 
unlocked using the smartphone Digital 
Key, the Lock/Unlock switch on the driver 
door may not be immediately available.
(If you attempt to lock the doors using 
the driver door lock switch, the doors will 
lock and then immediately unlock when 
you close the door.)    
![HYUNDAI TUCSON 2023  Owners Manual Convenient features
5-26
ONX4050002
[1] : Door handle authentication pad, 
[2]:  NFC Antenna
NFC door lock/unlock
 To unlock your vehicle using the NFC 
card key, touch the card key near the 
door han HYUNDAI TUCSON 2023  Owners Manual Convenient features
5-26
ONX4050002
[1] : Door handle authentication pad, 
[2]:  NFC Antenna
NFC door lock/unlock
 To unlock your vehicle using the NFC 
card key, touch the card key near the 
door han](/manual-img/35/56195/w960_56195-169.png)
Convenient features
5-26
ONX4050002
[1] : Door handle authentication pad, 
[2]:  NFC Antenna
NFC door lock/unlock
 To unlock your vehicle using the NFC 
card key, touch the card key near the 
door handle NFC touch sensor of either 
the driver side or passenger side door.  
Hold the card key near the touch sensor 
area for about 2 seconds.  You will hear 
the doors lock or unlock.
If you unlock your vehicle from the 
passenger side door handle, then all the 
doors will unlock.  If you unlock your 
vehicle from the driver side door handle, 
then either the driver door only or all 
the doors will unlock depending on the 
setting of the Two Press Unlock feature.  
Refer to User Settings to change the 
Driver Door unlock mode.
To lock your vehicle using the NFC card 
key, touch the card key near the door 
handle NFC touch sensor of either the 
driver side or passenger side door.  
Before you leave your vehicle, verify 
that your vehicle is locked.  When using 
your NFC card key on the front door 
handle, listen to hear that the door lock 
has actuated, and then pull the handle 
within 3 seconds to confirm the doors 
are locked.
 Inoperable condition
When using the NFC card key to lock or 
unlock your vehicle, be sure to touch 
the card key near the center of the door 
handle to enable the sensor to activate.
Note that you must take the card out of 
your wallet or purse to use the card key 
correctly.  If the card key is not touching 
the door handle sensor or is in close 
proximity to other NFC-enabled cards, it 
may not work.
Note that if you attempt to use the 
NFC card key to lock the doors, the 
doors will not lock under the following 
circumstances:
•	
The Smart Key is in the vehicle
•	 The Engine Start/Stop button is in the 
ACC or ON position
•	 Any of the doors are open (except for 
the liftgate)
If this occurs, then a chime will sound 
for about 3 seconds.  Check the vehicle 
before attempting to lock the car again.
If you have difficulty locking or unlocking 
the vehicle using the NFC card key, 
remove the card key away from the door 
handle sensor for a few seconds (card 
key must be more than 4 inches away) 
and then retry.
If the card key is damaged or bent, the 
sensor on the door handle may not 
properly detect the card key.  If this 
occurs contact your authorized Hyundai 
dealer for a card key replacement.
Be careful not to damage the card 
key or expose the card key to extreme 
temperatures or direct sunlight for long 
periods of time.
Note that when the doors have been 
unlocked using the NFC digital card key, 
the Lock/Unlock switch on the driver 
door may not be immediately available.
(If you attempt to lock the doors using 
the driver door lock switch, the doors will 
lock and then immediately unlock when 
you close the door.)