2023 HYUNDAI IONIQ 5 battery

Instrument Cluster
4-26
12V battery discharging due to
additional electrical devices
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This warning message is displayed when
a battery discharge due to excessive
current is detected by mounting an
unauthorized electrical device such as a
black box.
Be careful as it may cause battery
discharge problems.
If the warning message is not
disappeared after the external electrical
device is removed, have the vehicle
inspected by an authorized HYUNDAI
dealer.
Power limited due to low EV battery
temperature. Charge battery
OOSEV040507L
Both warning messages are displayed
to protect electric vehicle system when
outside temperature is low. If the high
voltage battery charging level is low
and parked outside in low temperature
for a long time, vehicle power could be
limited.
Charging the battery before driving helps
increase power.
NOTICE
If these warning messages are still
displayed even after the ambient
temperature has increased, have the
vehicle inspected by an authorized
HYUNDAI dealer.

04
4-27
EV battery overheated! Stop vehicle
OOSEV040509L
This warning message is displayed to
protect battery and electric vehicle
system when the high voltage battery
temperature is too high.
Turn off the START/STOP button and
stop the vehicle so that the battery
temperature decreases.
Power limited
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This Indicator light illuminates: • When the START/STOP button is in the ON position.
- It illuminates for approximately 3 seconds and then goes off.
• When the power is limited for the
safety of the high-powered parts of an
electric vehicle. The power is limited
for the following reasons. (Unless
both Service Warning Light and Power
Down Indicator Light illuminate at the
same time, it is not a failure.)
- The high voltage battery level is too low or voltage is decreasing
- The temperature of the high voltage battery is too high or too low
- The temperature of the motor is high
NOTICE
• When this warning message is
displayed, do not accelerate or start
the vehicle suddenly.
• When the power is limited for the
safety of the high-powered parts of
an electric vehicle, the power down
indicator light illuminates. your
vehicle may not drive uphill or skid
on a slope with the indicator light ON.

Convenience Features
5-12
Smart key precautions
The smart key may not work if any of the
following occur: •
The smart key is close to a radio
transmitter such as a radio station or
an airport which can interfere with
normal operation of the transmitter.
• The smart key is near a mobile two
way radio system or a mobile phone.
• Another vehicle’s smart key is being
operated close to your vehicle.
If the smart key does not work correctly, open and close the door with the
mechanical key. If you have a problem
with the smart key, contact an authorized
HYUNDAI dealer.
If the smart key is in close proximity to
your mobile phone, the signal could be
blocked by your mobile phone’s normal
operational signals. This is specifically
relevant when the phone is active such
as making and receiving calls, text
messaging, and/or sending/receiving
emails. When possible, avoid keeping the
smart key and your mobile phone in the
same location such as a pants or jacket
pocket in order to avoid interference
between the two devices.
Information
Changes or modifications not expressly
approved by the party responsible
for compliance could void the user’s authority to operate the equipment. If the keyless entry system is inoperative due
to changes or modifications not expressly
approved by the party responsible for
compliance, it will not be covered by your
manufacturer’s vehicle warranty.
Information
This device complies with Part 15 of the FCC rules.
Operation is subject to the following three conditions: 1. This device may not cause harmful
interference, and
2. This device must accept any
interference received, including
interference that may cause undesired operation.
3. Changes or modifications not expressly
approved by the party responsible
for compliance could void the user’s authority to operate the device.
NOTICE
• Keep the smart key away from
electromagnetic materials that
blocks electromagnetic waves to the
key surface.
• Always have the smart key with
you when leaving the vehicle. If the
smart key is left near the vehicle, the
vehicle battery may be discharged.

05
5-13
Battery replacement
If the Smart Key is not working properly,
try replacing the battery with a new one.
Battery Type: CR2032
To replace the battery:
OFE048009
If the Smart Key is not working properly,
try replacing the battery with a new one.
ODN8059266
Battery Type: CR2032
To replace the battery:
1. Remove the mechanical key.
2. Use a slim tool to pry open the rear cover of the smart key.
3. Remove the old battery and insert the new battery. Make sure the battery
position is correct.
4. Reinstall the rear cover of the smart
key.
If you suspect your smart key might have
sustained some damage, or you feel
your smart key is not working correctly,
contact an authorized HYUNDAI dealer.
Information
An inappropriately disposed battery can be harmful to
the environment and human health. Dispose of the battery
according to your local law(s) or
regulations.

05
5-19
ONE1051005
[A] : Wireless Charging Pad (In-vehicle Authentication Pad)
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. When you
lock or unlock the door with NFC, please
contact and hold your smartphone on the
door handle until it works.
The solution allows for offline mode usage
when the mobile data connection of the
smartphone is weak. When you are in the
place where the mobile data connection
of your smartphone is available and
place your smartphone on the interior
authentication pad (wireless charger) and
start up your vehicle or contact the digital
key on the door handle to lock or unlock
the door, the remote renewal of security
information starts automatically. Even
though the engine is turned on, please
wait until the remote renewal process
is completed and wireless charger is converted to charging mode.
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
unsupervised children or people who
are not aware of the system since it
can result in serious injury or death.
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.

Convenience Features
5-22
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.

05
5-23
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. •
The vehicle may not be controlled by
the smartphone if any of the following
occurs:
-Basic and necessary functions of
the smartphone manufacturer are
operating. (General call, urgent
call, audio or NFC payment)
- Wireless earphone is operating.
(General call, urgent call or audio)
- The digital key app function such
as basic setting or app launching
is limited by prior policy according
to the manufacturer while using a
smartphone produced by domestic
and foreign manufactures.

à If you change the smartphone
number, you should modify the user
account information on the HYUNDAI
customer web site to use the digital
key app.

à If the vehicle owner changes
the smartphone device, the new
smartphone should be registered in
the car after deleting the registered
digital key(smartphone).

à If a sharer changes or reset the
smartphone, the key should be re-
shared from owner.

à Some of the old smartphone may
not work properly. Please check the
available smartphone models with
your dealer.

à NFC antenna position on the
smartphone can be confirmed
on each smartphone’s manual or
contact to customer service center
of the smartphone manufacture.

05
5-31
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ONE1051010
• When the “Approach unlock” is
activated :
- If you approach (within 1 m) the driver or front passenger’s door
handle possessing the smart key, the outside door handles slide out
and the doors are unlocked. In this
case, Hazard Warning Flasher blinks twice and chime also sounds twice.
- After first approach, the vehicle tries detecting the smart key
every 5 seconds and if the key is
not detected, the doors will lock
automatically and the handles will slide in.
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ONE1051010
• When the “Approach unlock” is
deactivated : The handle does not
slide out even when you approach
with the smart key in possession. The
doors are unlocked if you press the outside handle as the handles slide out.
• The doors will lock automatically
and the handles will slide in after 30 seconds unless a door is opened.
Information
In emergency situations, such as battery is
dead, the outside electric door handle can still be operated in a way that the outside
manual door handle operate.