battery HYUNDAI SONATA 2023 User Guide

05
5-5
Trunk unlocking
To unlock the trunk :
1. Press and hold the Trunk Unlock button (3) on the remote key for more than one second.
2. The hazard warning lights will blink two times and the trunk will be
unlocked.
3. Once the trunk is opened and then closed, the trunk will automatically
re-lock after 30 seconds.
Information
The word “HOLD” is written on the
button to inform you that you must press
and hold the button for more than one second.
Panic button (4)
Press and hold the Panic button (4) for
more than one second. The horn sounds
and hazard warning lights flash for about 30 seconds.
To cancel the panic mode, press any
button on the remote key.
Start-up
For information, refer to the “Key
Ignition Switch” section in chapter 6.
NOTICE
To prevent damaging the remote key: • Keep the remote key away from
water or any liquid and fire. Internal
circuits may malfunction if the inside
of the remote key gets damp (from
liquids or moisture) or if it is heated.
This can exclude the remote key from
being covered under warranty.
• Avoid dropping or throwing the
remote key.
• Protect the remote key from extreme
temperatures. Mechanical key
OIG046004
If the remote key does not operate
normally, you can lock or unlock the
driver’s door by using the mechanical
key.
To unfold the mechanical key, press the
release button on the remote.
To return the key to its stored position,
press the release button and fold the key
back into the remote.
Remote key precautions
The remote key will not work if any of the
following occur: • The key is in the ignition switch.
• You exceed the operating distance
limit (about 30 m [90 feet]).
• The remote key battery is weak.
• Other vehicles or objects may be blocking the signal.
• The weather is extremely cold.
• The remote key is close to a radio
transmitter such as a radio station or
an airport which can interfere with
normal operation of the remote key.
If the remote key does not work
correctly, open and close the door
with the mechanical key. If you have a
problem with the remote key contact an
authorized HYUNDAI dealer.

Convenience Features
5-6
If the remote 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 placing the remote
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
This device complies with Industry Canada RSS-210 standard.
Operation is subject to the following three conditions: 1. This device may not cause harmful
interference.
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 remote key away from
electromagnetic materials that block
electromagnetic waves to the key
surface. Battery replacement
OPD046002
If the remote key is not working properly,
try replacing the battery with a new one.
Battery Type: CR2032
To replace the battery:
1. Insert a slim tool into the slot and gently pry open the cover.
2. Using a screw driver, remove the battery cover.
3. Remove the old battery and insert the new battery. Make sure the battery
position is correct.
4. Reinstall the battery cover and key
cover in the reverse order of removal.
If you suspect your remote key might
have sustained some damage, or you feel
your remote key is not working correctly
contact an authorized HYUNDAI dealer.

05
5 -7
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.
IC WARNING
This device complies with Industry
Canada licence-exempt RSS
standard(s).
Operation is subject to the following
two conditions: (1) this device may not
cause interference, and (2) this device
must accept any interference, including
interference that may cause undesired
operation of the device.
Smart Key (if equipped)
„„Type A
ODN8059006
„„Type B
ODN8059007
Your HYUNDAI uses a smart key, which
you can use to lock or unlock a door (and
trunk) and even start the engine even just
carrying the key.
(1) Door Lock
(2) Door Unlock
(3) Trunk Open
(4) Panic
(5) Remote Smart Parking Assist (rearward)
(6) Remote Smart Parking Assist (forward)
(7) Remote Start

05
5-13
Information
This device complies with Industry Canada RSS-210 standard.
Operation is subject to the following three conditions: 1. This device may not cause harmful
interference.
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.
NOTICE
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. Battery replacement
OFE048009
ODN8059266
If the Smart Key is not working properly,
try replacing the battery with a new one.
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.

Convenience Features
5-14
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 regulation.
IC WARNING
This device complies with Industry
Canada licence-exempt RSS
standard(s).
Operation is subject to the following
two conditions: (1) this device may not
cause interference, and (2) this device
must accept any interference, including
interference that may cause undesired
operation of the device.
Immobilizer System
The immobilizer system protects your
vehicle from theft. If an improperly
coded key (or other device) is used, the
engine’s fuel system is disabled.
When the ignition switch is placed in
the ON position, the immobilizer system
indicator should come on briefly, then
go off. If the indicator starts to blink, the
system does not recognize the coding
of the key. Turn the ignition switch to
the LOCK/OFF position, then turn the
ignition switch to the ON position again.
In some circumstances, the vehicle may
not recognize your smart key if another
smart key device is nearby or a metal
object such as a key chain is causing
interference with the smart key.
If this occurs, your vehicle may not
start. Remove any metal objects or
additional keys near the smart key before
attempting to start the vehicle again.
If the system repeatedly does not
recognize the coding of the key, it is
recommended that you contact your
HYUNDAI dealer.
Do not attempt to alter this system
or add other devices to it. Electrical
problems could result that may make
your vehicle inoperable.
WARNING
In order to prevent theft of your
vehicle, do not leave spare keys
anywhere in your vehicle. Your
immobilizer password is a customer
unique password and should be kept
confidential.
NOTICE
The transponder in your key is an
important part of the immobilizer
system. It is designed to give years
of trouble-free service, however you
should avoid exposure to moisture,
static electricity and rough handling.
Immobilizer system malfunction could
occur.

05
5-17
In case of an emergency
ODN8059291
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 out -
side 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.
i 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 Locks from
Inside the Vehicle
With the door handle
ODN8059012
Front door
If the inner door handle is pulled when
the door is locked, the door will unlock and open.
Rear door
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.

Convenience Features
5-24
Driver poSiTion memory SySTem (if eQUippeD)
ODN8A059019
The Driver Position Memory System is
provided to store and recall the following
memory settings with a simple button
operation. - Driver’s seat position (Power seat)
- Side view mirror position
- Instrument panel illumination intensity
- Head Up Display (HUD) position and brightness (if equipped)
WARNING
Never attempt to operate the driver
position memory system while the
vehicle is moving.
This could result in loss of control, and
an accident causing death, serious
injury, or property damage.
Information
• If the battery is disconnected, the memory settings will be erased.
• If the Driver Position Memory System
does not operate normally, have the system checked by an authorized
HYUNDAI dealer.
Storing Positions into Memory
1. Shift to P (Park) while the ignition
switch is in the ON position.
2. Adjust the driver’s seat position, side view mirror position, instrument panel
illumination intensity and head-up
display height/brightness to positions
comfortable for the driver.
3. Press the SET button. The system will beep once and notify you “Press
button to save settings” on the cluster
LCD display.
4. Press one of the memory buttons (1
or 2) within 4 seconds. The system will beep twice when the memory has
been successfully stored.
5. “Settings 1 (or 2) saved” will appear on the cluster LCD display.

05
5-27
Electric Power Steering (EPS)
The system assists you with steering the
vehicle. If the vehicle is turned off or
if the power steering system becomes
inoperative, you may still steer the
vehicle, but it will require increased
steering effort.
Also, the steering effort becomes heavier
as the vehicle’s speed increases and
becomes lighter as the vehicle’s speed
decreases for better control of the
steering wheel.
Should you notice any change in the
effort required to steer during normal
vehicle operation, have the system
checked by an authorized HYUNDAI
dealer.
CAUTION
• If the Electric Power Steering System
does not operate normally, the
warning light (
) will illuminate
on the instrument cluster. You may
steer the vehicle, but it will require
increased steering efforts. Take your
vehicle to an authorized HYUNDAI
dealer and have the system checked as soon as possible.
• When an abnormality is detected
in the electric power steering
system, to prevent a an accident, the
steering assist function may become
inoperative. At this time, the warning
light turns on or blinks on the cluster.
The steering wheel may become
difficult to control or operate. Have
your vehicle checked immediately,
after moving the vehicle to a safe
area.
Information
The following symptoms may occur during normal vehicle operation: • The steering effort may be high
immediately after placing the ignition switch in the ON position. This happens as the system performs
the EPS system diagnostics. When the
diagnostics are completed, the steering
wheel effort will return to its normal condition.
• When the battery voltage is low, you
might have to put more steering effort.
However, it is a temporary condition so
that it will return to normal condition
after charging the battery.
• A click noise may be heard from the
EPS relay after the ignition switch is in
the ON or LOCK/OFF position.
• Motor noise may be heard when the
vehicle is at a stop or at a low driving speed.
• When you operate the steering wheel
in low temperatures, abnormal noise
may occur. If the temperature rises, the
noise will disappear. This is a normal condition.
• When an error is detected from the EPS, the steering effort assist function
may become inoperative in order to
prevent fatal accidents. Instrument
cluster warning lights may be on or the steering effort may be high. If these
symptoms occur, drive the vehicle to
a safe area as soon as it is safe to do so. Have the system checked by an
authorized HYUNDAI dealer as soon as possible.
steering Wheel

05
5-33
Automatic-Dimming Night Vision Safety™ (NVS®
) Mirror (if equipped)
The NVS® Mirror automatically reduces
glare by monitoring light levels in the
front and the rear of the vehicle. Any
object that obstructs either light sensor
will degrade the automatic dimming
control feature.
For more information regarding NVS®
mirrors and other applications, please
refer to the Gentex website:
www.gentex.com
Your mirror will automatically dim
upon detecting glare from the vehicles
traveling behind you.
The mirror defaults to the ON position
each time the vehicle is started. 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 outlined procedures.
Additional HomeLink® information can
be found at: www.homelink.com, www.
youtube.com/HomeLinkGentex 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.
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
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
federal safety standards.Using a garage
door opener without these features
increases the risk of serious injury or
death.
Programming HomeLink ®
Please note the following:
• When programming a garage door opener, it is advised to park the
vehicle outside of the garage.
• It is recommended that a new battery be placed in the hand-held transmitter
of the device being programmed to
HomeLink® for quicker training and
accurate transmission of the radio-
frequency signal.
• Some vehicles may require the Engine Start/Stop button to be in the
ACC (or “Accessories”) position for
programming and/or operation of
HomeLink®.
• In the event that there are still programming difficulties or questions
after following the programming steps
listed below, contact HomeLink® at:
www.homelink.com, www.youtube.
com/HomeLinkGentex or by calling
1-800-355-3515.

05
5-49
Resetting the Sunroof
ODN8A059039
The sunroof may need to be reset if the
following conditions occur:
• The battery is discharged or disconnected or the sunroof fuse has
been replaced or disconnected
• The sunroof control lever is not operating correctly
To reset the sunroof, perform the
following steps:
1. Turn the engine on and close the sunroof glass and sunshade
completely.
2. Release the control lever.
3. Push and hold the sunroof control lever (1) forward (to close the
sunshade) for about 10 seconds until
the sunroof moves slightly, then
release the control lever.
4. Push and hold the sunroof control lever forward until the sunroof
operates as follows:
TILT DOWN → SLIDE OPEN → SLIDE
CLOSE
Then, release the control lever.
When this is complete, the sunroof
system is reset.
For more information, contact an
authorized HYUNDAI dealer.
Information
If you do not reset the sunroof, it may not
work properly.
Sunroof Open Warning (if equipped)
• If the driver turns off the engine when the sunroof is not fully closed,
the warning chime will sound for
approximately 3 seconds and the
sunroof open warning will appear on
the cluster LCD display.
• If the driver turns off the engine and opens the door when the sunroof is
not fully closed, the sunroof open
warning will appear on the cluster
LCD display until the door is closed or
the sunroof is fully closed.
Close the sunroof securely when leaving
your vehicle.