2023 HYUNDAI SONATA HYBRID Owners Manual

Convenience Features
5-62
Resetting the Sunroof
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In some circumstances resetting the
sunroof operation may need to be
performed. Some instances where
resetting the sunroof may be required
include:
• When the 12 V battery or 12 V battery
connector is either disconnected or
discharged
• When the sunroof fuse is replaced
• If the sunroof one-touch AUTO OPEN/
CLOSE operation is not functioning
properly
Sunroof resetting procedure:
1. It is recommended to perform the
reset procedure with the vehicle
engine running. Start the vehicle in P
(Park).
2. Make sure the power sunshade and
sunroof glass are in the fully closed
position. If the power sunshade
and sunroof glass are open, push
the switch forward until the power
sunshade and sunroof glass are fully
closed.
3. Release the switch when the power
sunshade and sunroof glass are fully
closed.
4. Push the switch forward until the
power sunshade and sunroof glass
move slightly. Then release the switch.
5. Once again push and hold the sunroof
switch forward until the power
sunshade and sunroof glass slide open
and close. Do not release the switch
until the operation is completed.
If you release the switch during
operation, start the procedure again
from step 2.
Information
If the sunroof is not reset when the vehicle
12 V battery or 12 V battery connector is
disconnected or discharged, or the sunroof
fuse is blown, the sunroof may not operate
normally.
Sunroof Open Warning
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If the driver turns off the engine when
the sunroof is not fully closed, the
warning chime will sound for several
seconds and the sunroof open warning
will appear on the cluster LCD display.
Close the sunroof securely when leaving
your vehicle.
CAUTION
Make sure the sunroof is closed fully
when leaving your vehicle.
If the sunroof is left open, rain or snow
may wet the interior of the vehicle.
Also, leaving the sunroof open when the
vehicle is unattended may invite theft.

05
5-63
EXTERIOR FEATURES
Hood
Opening the hood
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1. Park the vehicle and set the parking
brake.
2. Pull the release lever to unlatch the
hood. The hood should pop open
slightly.
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3. Go to the front of the vehicle, raise the
hood slightly, push up the secondary
latch (1) inside of the hood center
and lift the hood (2). After it has been
raised about halfway, it will raise
completely by itself.
Closing the hood
1. Before closing the hood, check in and
around the engine compartment to
ensure the following:
-Any tools or other loose objects are
removed from the engine room area
or hood opening area
-All glove, rags, or other combustible
material is removed from the engine
compartment
-All filler caps are tightly and
correctly installed
2. Lower the hood halfway (lifted
approximately 12 inches (30 cm) from
the closed position) and push down
to securely lock in place. Then double
check to be sure the hood is secure.
If the hood can be raised slightly, it is
not securely locked. Open it again and
close it with more force.
WARNING
• Before closing the hood, ensure
all obstructions are removed from
around the hood opening.
• Always double check to be sure that
the hood is firmly latched before
driving away. Check there is no
hood open warning light or message
displayed on the instrument cluster.
Driving with the hood opened may
cause a total loss of visibility, which
might result in an accident.
• Do not move the vehicle with the
hood in the raised position, as vision
is obstructed, which might result in
an accident, and the hood could fall
or be damaged.

Convenience Features
5-64
Trunk
Opening the trunk
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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.
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-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.

05
5-65
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.

Convenience Features
5-66
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.
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.
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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.

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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
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(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.

Convenience Features
5-68
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
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• 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.

05
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Fuel Filler Door
Opening the fuel filler door
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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.
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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.