HYUNDAI SONATA HYBRID 2021 Owners Manual

05
5-63
Trunk
Opening the trunk
ODN8059042
1. Make sure the shift button is in P (Park).
2. Then do one of the following :
-Press the button on the trunk handle
after locking or unlocking the door
by remote key or smart key.
-Press the trunk unlock button of
remote key or smart key for more
than 1 second.
-Press the button on the trunk
itself with the Smart Key in your
possession.
WARNING
The button on the trunk handle is
made of the rubber. Do not press it
with the sharp objects such as the key,
screwdriver or drill.
ODN8059043
-Use the trunk release button.
3. Lift the trunk lid up.
Closing the trunk
Lower the trunk lid and press down until
it locks.
WARNING
Always keep the trunk lid completely
closed while the vehicle is in motion. If
it is left open or ajar, poisonous exhaust
gases containing carbon monoxide
(CO) may enter the vehicle and serious
illness or death may result.
WARNING
Make sure there are no people or
objects around the trunk before
opening or closing the Power Trunk.
Wait until the trunk is open fully and
stopped before loading or unloading
cargo from the vehicle.
NOTICE
To prevent damage to the trunk lift
springs and the attached hardware,
always close the trunk before driving.
Information
In cold and wet climates, trunk lock and
trunk mechanisms may not work properly
due to freezing conditions.
WARNING
Always be careful to open and close the
trunk.
• To prevent serious injury and
damage, you should check and keep
your body parts such as hands or
head away from the path of the trunk
while closing or opening the trunk.
• Your body parts or an object might be
damaged by sharp edges so you should
be careful while opening/closing the
trunk or taking the thing out from the
trunk. Especially, a child can hit the face
or head around the trunk so you should
be cautious all the time.

Convenient Features
5-64
Emergency Trunk Safety Release
Inside the trunk
ODN8059044L
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.
ODN8H059045
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.

05
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Smart Trunk with Auto Open
(if equipped)
ODN8059046L
On a vehicle equipped with a smart key,
the trunk can be opened using the Smart
Trunk with Auto Open system.
How to use the Smart Trunk with
Auto Open
The trunk can be opened with no-touch
activation satisfying all the conditions
below.
• After 15 seconds when all doors are
closed and locked
• Positioned in the detecting area for
more than 3 seconds.
Information
• The Smart Trunk with Auto Open does
not operate when:
-The smart key is detected within 15
seconds after the doors are closed
and locked, and is continuously
detected.
-The smart key is detected within 15
seconds after the doors are closed
and locked, and within 60 inches
(1.5 m) from the front door handles.
(for vehicles equipped with Welcome
Light)
-A door is not locked or closed.
-The smart key is in the vehicle.
1. Setting
To activate the Smart Trunk with Auto
Open, go to User Settings Mode and
select Smart Trunk on the LCD display.
For more information, refer to the “LCD
Display” section in this chapter. If your
vehicle is equipped with additional
navigation, please refer to the
infotainment system manual separately
supplied.
ODN8A059047
2. Detect and Alert
If you are positioned in the detecting
area (20~40 inches (50 ~100 cm) behind
the vehicle) carrying a smart key, the
hazard warning lights will blink and
chime will sound to alert you the smart
key has been detected and the trunk will
open.
Information
Do not approach the detecting area if you
do not want the trunk to open. If you have
unintentionally entered the detecting area
and the hazard warning lights and chime
starts to operate, leave the detecting area
with the smart key. The trunk will stay
closed.

Convenient Features
5-66
ODN8A059048
3. Automatic opening
The hazard warning lights will blink and
chime will sound 6 times and then the
trunk will open.
WARNING
• Make sure you close the trunk before
driving your vehicle.
• Make sure there are no people or
objects around the trunk before
opening or closing the trunk.
• Make sure objects in the trunk do not
come out when opening the trunk on
a slope. It may cause serious injury.
• Make sure to deactivate the Smart
Trunk when washing your vehicle.
Otherwise, the trunk may open
inadvertently.
• The key should be kept out of
reach of children. Children may
inadvertently open the Smart Trunk
while playing around the rear area of
the vehicle.
How to deactivate the Smart Trunk
with Auto Open function using the
smart key
ODN8A059007
(1) Door lock
(2) Door unlock
(3) Trunk open
If you press any button of the smart key
during the Detect and Alert stage, the
Smart Trunk with Auto Open function will
be deactivated.
Make sure to be aware of how to
deactivate the Smart Trunk with Auto
open function for emergency situations.

05
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Information
• If you press the door unlock button
(2), the Smart Trunk with Auto
Open function will be deactivated
temporarily. But, if you do not open
any door for 30 seconds, the Smart
Trunk with Auto Open function will be
activated again.
• If you press the trunk open button
(3) for more than 1 second, the trunk
opens.
• If you press the door lock button (1) or
trunk open button (3) when the Smart
Trunk with Auto Open in the Detect
and Alert stage, the Smart Trunk
with Auto Open function will not be
deactivated.
• In case you have deactivated the Smart
Trunk with Auto Open function by
pressing the smart key button and
opened a door, the Smart Trunk with
Auto Open function can be activated
again by closing and locking all doors.
Detecting area
ODN8A059049
• The Smart Trunk with Auto Open
operates with a welcome alert if the
smart key is detected within 20~40
inches (50~100 cm) from the trunk.
• The alert stops at once if the smart
key is positioned outside the
detecting area during the Detect and
Alert stage.
Information
• The Smart Trunk with Auto Open
function will not work if any of the
following occurs:
-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 cellular phone.
-Another vehicle’s smart key is being
operated close to your vehicle.
• The detecting range may decrease or
increase when :
-One side of the tire is raised to replace a
tire or to inspect the vehicle.
-The vehicle is parked on a slope or
unpaved road, etc.

Convenient Features
5-68
Fuel Filler Door
Opening the fuel filler door
ODN8059050
1. Turn the engine off.
2. Ensure the driver’s door is unlocked.
3. Push the fuel filler door near the 3
o’clock position.
ODN8059051
4. Pull the fuel filler door (1) outward to
access the fuel tank cap.
5. To remove the fuel tank cap (2), turn
it counterclockwise. You may hear a
hissing noise as the pressure inside
the tank equalizes.
6. Place the cap on the fuel filler door.
Information
If the fuel filler door does not open
because ice has formed around it, tap
lightly or push on the door to break the
ice and release the door. Do not pry on the
door. If necessary, spray around the door
with an approved deicer fluid (do not use
radiator antifreeze) or move the vehicle to
a warm place and allow the ice to melt.
Closing the fuel filler door
1. To install the fuel tank cap, turn it
clockwise until it “clicks” one time.
2. Close the fuel filler door until it is
latched securely.
WARNING
Gasoline is highly flammable and
explosive. Failure to follow these
guidelines may result in SERIOUS
INJURY or DEATH:
• Read and follow all warnings posted
at the gas station.
• Before refueling, note the location of
the Emergency Gasoline Shut-Off, if
available, at the gas station.
• Before touching the fuel nozzle, you
should eliminate the potential build-
up of static electricity by touching
a metal part of the vehicle, a safe
distance away from the fuel filler
neck, nozzle, or other gas source,
with your bare hand.
• Do not use cellular phones while
refueling. Electric current and/or
electronic interference from cellular
phones can potentially ignite fuel
vapors and cause a fire.

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• Do not get back into a vehicle
once you have begun refueling.
You can generate a buildup of
static electricity by touching,
rubbing or sliding against any item
or fabric capable of producing
static electricity. Static electricity
discharge can ignite fuel vapors
causing a fire. If you must re-enter
the vehicle, you should once again
eliminate potentially dangerous
static electricity discharge by
touching a metal part of the vehicle,
away from the fuel filler neck, nozzle
or other gasoline source, with your
bare hand.
• When using an approved portable
fuel container, be sure to place the
container on the ground prior to
refueling. Static electricity discharge
from the container can ignite fuel
vapors causing a fire.
Once refueling has begun, contact
between your bare hand and the
vehicle should be maintained until
the filling is complete.
• Use only approved portable plastic
fuel containers designed to carry and
store gasoline.
• When refueling, always move the
shift button to the P (Park) position,
set the parking brake, and place
the ignition switch to the LOCK/
OFF position. Sparks produced by
electrical components related to the
engine can ignite fuel vapors causing
a fire.
• Do not use matches or a lighter and
do not smoke or leave a lit cigarette
in your vehicle while at a gas station,
especially during refueling.
• Do not over-fill or top-off your
vehicle tank, which can cause
gasoline spillage.• If a fire breaks out during refueling,
leave the vicinity of the vehicle, and
immediately contact the manager
of the gas station and then contact
the local fire department. Follow any
safety instructions they provide.
• If pressurized fuel sprays out, it can
cover your clothes or skin and thus
subject you to the risk of fire and
burns. Always remove the fuel cap
carefully and slowly. If the cap is
venting fuel or if you hear a hissing
sound, wait until the condition stops
before completely removing the cap.
• Always check that the fuel cap is
installed securely to prevent fuel
spillage in the event of an accident.
Information
Make sure to refuel your vehicle according
to the “Fuel Requirements” suggested in
the Introduction chapter.
NOTICE
• Do not spill fuel on the exterior
surfaces of the vehicle. Any type of
fuel spilled on painted surfaces may
damage the paint.
• If the fuel filler cap requires
replacement, use only a genuine
HYUNDAI cap or the equivalent
specified for your vehicle. An
incorrect fuel filler cap can result
in a serious malfunction of the fuel
system or emission control system.

Convenient Features
5-70
HEAD UP DISPLAY (HUD) (IF EQUIPPED)
ODN8A059054
The Head-Up Display is an optional
feature that allows the driver to view
information projected onto a transparent
screen while still keeping your eyes
safely on the road ahead while driving.
Precautions while using the head up
display
It may sometimes be difficult to read
information on the head up display in the
following situations.
-The driver is improperly positioned in
the driver’s seat.
-The driver wears polarizing-filter
sunglasses.
-An object is located above the head
up display cover.
-The vehicle is driven on a wet road.
-Any improper lighting accessory is
installed inside the vehicle, or there
is incoming light from outside of the
vehicle.
-The driver wears glasses.
-The driver wears contact lenses.
When it is difficult to read the head up
display information, adjust the head
up display angle or the head up display
brightness level in the User Settings
mode. For more information, refer to
“LCD Display” in this chapter.
WARNING
• Do not tint the front windshield
glass or add other types of metallic
coating. Otherwise, the head up
display image may be invisible.
• Do not place any accessories on the
crash pad or attach any objects on
the windshield glass.
• The Blind-spot Collision Warning
system warnings on the head up
display are supplemental. Do not
solely depend on them to change
lanes. Always take a look around
before changing lanes.
NOTICE
When replacing the front windshield
glass of the vehicle equipped with
the head up display, replace it with
a windshield glass designed for the
head up display operation. Otherwise,
duplicated images may be displayed on
the windshield glass.
Head-up display ON/OFF
OIK047152N
To activate the head up display, select
‘Enable Head-Up Display’ on the User
Settings mode on the instrument cluster
LCD display.
If you do not select ‘Enable Head-Up
Display’, the head up display will be
deactivated.
If your vehicle is equipped with
additional navigation, please refer to the
infotainment system manual separately
supplied.

05
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Head-up display information
ODN8A059338
1. Turn-by-turn (TBT) navigation
information
2. Road information
3. Speedometer
4. Cruise system set speed
5. SCC Headway information
6. Lane Following Assist information
7. Lane Safety information
8. Blind-Spot Safety information
9. Highway Driving Assist information
The information provided may differ
depending on which functions are
applicable to your vehicle.
Information
If you select the Turn By Turn (TBT)
navigation information as Head-Up
Display contents, the Turn By Turn
(TBT) navigation information will not be
displayed in the instrument cluster LCD
display.
Head-up display setting
On the LCD display, you can change the
head up display settings as follows.
• Enable Head-up display
• Display Height
• Rotation
• Brightness
• Content Selection
• Speed Size
• Speed Color
For more information, refer to “LCD
Display” in chapter 4. If your vehicle is
equipped with additional navigation,
please refer to the infotainment system
manual separately supplied.

Convenient Features
5-72
LIGHTING
Exterior Lights
Lighting control
To operate the lights, turn the knob at
the end of the control lever to one of the
following positions:
ODN8A059200
1. OFF position
2. AUTO headlamp position
3. Parking lamp position
4. Headlamp position
Daytime running light (DRL)
The Daytime Running Lights (DRL) can
make it easier for others to see the front
of your vehicle during the day, especially
after dawn and before sunset.
The DRL system will turn the dedicated
lamp OFF when:
• The headlamps are ON.
• The parking lamps are ON.
• The vehicle is turned off.
• The parking brake is engaged.
ODN8A059201
AUTO headlamp position
The parking lamp and headlamp will
be turned ON or OFF automatically
depending on the amount of daylight as
measured by the ambient light sensor on
the center dash (1).
Even with the AUTO headlamp feature
in operation, it is recommended to
manually turn ON the headlamps when
driving at night or in a fog, driving in the
rain, or when you enter dark areas, such
as tunnels and parking facilities.
NOTICE
• Do not cover or spill anything on
the sensor (1) located in front of the
instrument panel.
• Do not clean the sensor using
a window cleaner, the cleanser
may leave a light film which could
interfere with sensor operation.
• If your vehicle has window tint or
other types of metallic coating on
the front windshield, the AUTO
headlamp system may not work
properly.