2020 Hyundai Sonata battery

Convenient Features5-22
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.
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.

Convenient Features5-32
In case of an emergency
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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 Locks from
Inside the Vehicle
With the door handle
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Front door
If the inner door handle is pulled when
the door is lock
ed, the door will unlock
and open.
Rear door
If the inner door handle is pulled once
when the door is lock
ed, 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, front and rear.
• Lower a front window and use the
mechanical key to unlock the door from
outside.

05
5-39
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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.
DRIVER POSITION MEMORY SYSTEM (IF EQUIPPED)

Convenient Features5-42
STEERING WHEEL
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.

Convenient Features5-48
Automatic-Dimming Night Vision Safety™
(NVS®) Mirror (if equipped)
The NVS® Mirror automatically reduces
glar
e 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 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.
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
5-63
Resetting the Sunroof
ODN8A059039ODN8A059039
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.

Convenient Features5-66
Emergency Trunk Safety Release
Inside the trunk
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Your vehicle is equipped with an
Emergency Trunk Safety Release lever
located inside the trunk. When someone
is inadvertently locked in the trunk, the
trunk can be opened by moving the lever
in the direction of the arrow and pushing
the trunk open.
WARNING
• You and your passengers must be aware of the location of the
Emergency Trunk Safety Release
lever in this vehicle and how to open
the trunk in case you are accidentally
locked in the trunk.
• NEVER allow anyone to occupy the trunk of the vehicle at any time. If the
trunk is partially or totally latched
and the person is unable to get out,
serious injury or death could occur
due to lack of ventilation, exhaust
fumes and rapid heat build-up, or
because of exposure to cold weather
conditions. The trunk is also a highly
dangerous location in the event of a
crash because it is not a protected
occupant space but is a part of the
vehicle’s crush zone.
• Your vehicle should be kept locked and the Smart Key should be kept
out of the reach of children. Parents
should teach their children about the
dangers of playing in trunks. • Use the release lever for emergencies
only.
Inside the vehicle
When you can not unlock the trunk due
to battery discharge or other reasons,
you can unlock the trunk inside the
vehicle.
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Open the cable cover(1) under the rear
seat with a mechanical key and pull the
cable (2) for unlocking the trunk.
The cable is firmly fixed so it may hard to
pull. Therefore, please use a tool such as
a screwdriver to assist in pulling the loop
for the emergency release.
Smart Trunk with Auto Open
(if equipped)
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On a vehicle equipped with a smart key,
the trunk can be opened using the Smart
Trunk with Auto Open system.

05
5-79
Turn signals and lane change signals
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To signal a turn, push down on the lever
for a left turn or up for a right turn in
position (A).
If an indicator stays on and does not flash
or if it flashes abnormally, one of the turn
signal bulbs may be burned out and will
require replacement.
One touch turn signal function
To activate the One Touch Turn Signal
function, push the turn signal le
ver up or
down to position (B) and then release it.
The lane change signals will blink 3, 5 or
7 times.
You can activate or deactivate the One
Touch Turn Signal function or choose
the number of blinks (3, 5, or 7) from the
User Settings mode in the LCD display.
Battery saver function
The purpose of this feature is to prevent
the battery from being discharged.
The system automatically turns off the
parking lamp when the driver turns the
vehicle off and opens the driver-side
door.
With this feature, the parking lamps will
turn off automatically if the driver parks
on the side of road at night.
If necessary, to keep the lamps on when
the vehicle is turned off, perform the
following:
(1) Open the driver-side door.
(2) Turn the parking lamps OFF and ON again using the headlamp switch on
the steering column.
Headlamp delay function
If the key is removed from the ignition
switch or placed in the ACC position
or the LOCK/OFF position with the
headlamps ON, the headlamps (and/
or parking lamps) remain on for about
5 minutes. However, if the driver’s door
is opened and closed, the headlamps
are turned off after 15 seconds. Also,
with the engine off if the driver’s door is
opened and closed, the headlamps (and/
or parking lamps) are turned off after 15
seconds.
The headlamps (and/or parking lamps)
can be turned off by pressing the lock
button on the remote key or smart key
twice or turning the headlamp switch to
the OFF or AUTO position.
You can activate or deactivate the
Headlamp Delay function from the User
Settings Mode in the LCD display.