engine HYUNDAI SONATA 2021 Workshop Manual

Convenient Features
5-36
Rear Occupant Alert (ROA)
System
The Rear Occupant Alert (ROA) system
is provided to help prevent exiting the
vehicle with the rear passenger left in the
vehicle. When you open the front door
after opening and closing the rear door
and turning off the engine, the “Check
rear seats” warning message appears on
the cluster.
„„Cluster
ODN8A059339
„„Steering wheel
ODN8A059134
CAUTION
• The system does not actually detect
objects or people in the rear seat. By
using a rear door opened and closed
history, the system indicates that
there may be something in the rear
seat.
• The rear door opened and closed
history can be initialized only when
you turn off the engine normally, get
off the vehicle and lock the door with
the remote control key. Therefore,
there could be alarms even though
the back doors are locked.
e

x) When you get in and drive your
vehicle without locking the doors after
the alarm sounds, there could be the
alarm sounds if you turn off the engine
and open the driver’s seat door.

05
5-37
WARNING
It does not use the actual sensors but it
provides the alarm sounds by checking
the rear door lock/unlock status as a
reminder.
Vehicle Auto-Shut Off Function
If your parked vehicle in a garage is on
for a period of time, the engine turns
off automatically to prevent carbon
monoxide poisoning.
System setting
Select ‘User Settings → Convenience → Vehicle Auto-Shut Off’ in the LCD display.
ODN8A059340
Operating conditions
Vehicle Auto-Shut Off timer activates
when the following conditions are met.
• Ignition [ON] or engine running
• Shift button is in P (Park) position
• Unfastened driver’s seat belt
• Even one of the doors opens
Deactivations
• In case of selecting “Disable” for
Vehicle Auto-Shut Off in the User
Settings mode (30 min. based timer is
reset automatically if you restart.)
• Gear shift other than P
• Fastened driver’s seat belt
• Step on the brake or accelerator
System operation
At the set time on Vehicle Auto-Shut Off
timer, the engine turns off automatically.

Convenient Features5-38
ThefT-AlArm SyS T em
This system helps to protect your vehicle
and valuables. The horn will sound and
the hazard warning lights will blink
continuously if any of the following
occur:
- A door is opened without using the
r

emote key or smart key.
- The trunk is opened without using the r

emote key or smart key.
- The engine hood is opened.
The alarm con

tinues for 30 seconds, then
the system resets. To turn off the alarm,
unlock the doors with the remote key or
smart key.
The Theft Alarm System automatically
sets 30 seconds after you lock the doors
and the trunk. For the system to activate,
you must lock the doors and the trunk
from outside the vehicle with the remote
key or smart key or by pressing the
button on the outside of the door handle
with the smart key in your possession.
The hazard warning lights will blink and
the chime will sound once to indicate the
system is armed.
Once the security system is set, opening
any door, the trunk, or the hood without
using the remote key or smart key will
cause the alarm to activate.
The Theft Alarm System will not set if the
hood, the trunk, or any door is not fully
closed. If the system will not set, check
the hood, the trunk, or the doors are fully
closed.
Do not attempt to alter this system or
add other devices to it. Information
• Do not lock the doors until all
passengers have left the vehicle. If the
remaining passenger leaves the vehicle
when the system is armed, the alarm
will be activated.
• If the vehicle is not disarmed with the
remote key or smart key, open the
doors by using the mechanical key
and place the ignition switch in the
ON position (for remote key) or start
the engine (for smart key) by directly
pressing the ignition switch with the
smart key.
• If the system is disarmed by unlocking
the vehicle, but neither a door or the
trunk is opened within 30 seconds, the
doors will relock and the system will
rearm automatically.

05
5-41
NOTICE
• Reattempt to do the resetting procedure again, when the resetting
procedure incompletely stops or the
notification sound do not stop.
•

M
ake sure that there is no obstacle
around the driver’s seat in advance
of resetting the driver’s seat memory
system.
Easy Access Function
The system will move the driver’s seat
automatically as follows:
• It will move the driver’s seat rearward
when the Engine Start/Stop button is
pressed to the OFF position.
• It will move the driver’s seat forward
when the Engine Start/Stop button is
pressed to the ACC or START position.
You can activate or deactivate the Easy
Access Function from the User Settings
mode in the cluster LCD display.
‘Convenience
→ Seat Easy Access →
Off/Normal/Extended’.
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.
CAUTION
Driver should be cautious when using
this function to assure no injury to
passenger or child on the back seat.
In case of emergency the driver has to
stop movement of front seat (when easy
access feature is activated) by pressing
SET button or any of the driver seat
control switches.

Convenient Features
5-44
Heated Steering Wheel
(if equipped)
„„Type A
ODN8059103
„„Type B
ODN8059104
When the ignition switch is in the ON
position or when the engine is running,
press the heated steering wheel button
to warm the steering wheel. The
indicator on the button will illuminate.
To turn the heated steering wheel off,
press the button again. The indicator on
the button will turn off.
• The heated steering wheel defaults
t

o the OFF position whenever the
ignition switch is in the ON position.
However, if the Auto Comfort Control
function is ON, the heated steering
wheel will turn on and off depending
on the outside temperature.
• Auto
Comfort Control (for driver’s
sea

t) (if equipped)
The hea

ted steering wheel
automatically controls the steering
wheel temperature depending on
the ambient temperature when
the engine is running. If the heated
steering wheel switch is pushed, the
heated steering wheel will have to be
controlled manually.
T

o use this function, it must be
activated from the Settings menu
in the infotainment system screen.

F

or more information, refer to the
separately supplied manual with
your vehicle.
Information
The heated steering wheel will turn off
automatically approximately 30 minutes
after the heated steering wheel is turned
on.
NOTICE
Do not install any cover or accessory
on the steering wheel. This cover or
accessory could cause damage to the
heated steering wheel system.

05
5-47
Electrochromic Mirror (ECM)
(if equipped)
ODN8059023L
The electric rearview mirror automatically
controls the glare from the headlamp of
the vehicle behind you in nighttime or low
light driving conditions.
When the engine is running, the glare is
automatically controlled by the sensor
mounted in the rearview mirror. The
sensor detects the light level around the
vehicle, and automatically adjusts to
control the headlamp glare from vehicles
behind you.
Whenever the shift button is placed in R
(Reverse), the mirror will automatically
go to the brightest setting in order to
improve the driver’s view behind the
vehicle.
Electrochromic mirror (ECM) with
HomeLink® system (if equipped)
ODN8A059135
Your vehicle may be equipped with
a Gentex Automatic-Dimming Mirror
with an Integrated HomeLink® Wireless
Control System.
During nighttime driving, this feature
will automatically detect and reduce
rearview mirror glare. The HomeLink®
Universal Transceiver allows you to
activate your garage door(s), electric
gate, home lighting, etc.
(1) HomeLink Channel 1
(2) HomeLink Channel 2
(3) HomeLink Channel 3
(4)
Gar
age Door Opener Status Indicator :
Closing or Closed
(5) HomeLink Operation Indicator
(6)

Gar
age Door Opener Status Indicator :
Opening or Opened
(7)

H
omeLink User Interface Indicator

Convenient Features5-60
pAnorAmic SUnroof (if eQU ippe D )
If your vehicle is equipped with a
sunroof, you can slide or tilt your sunroof
with the sunroof control switch located
on the overhead console.
ODN8A059035
The sunroof can only be opened, closed,
or tilted when the ignition switch is in the
ON position.
The sunroof is operable for 30 seconds,
after the ignition switch is placed in the
OFF or ACC position. However, if the
front doors are opened, the sunroof
cannot be operated even within 30
seconds.
Information
• In cold and wet climates, the sunroof
may not work properly due to freezing
conditions.
• After the vehicle is washed or in a
rainstorm, be sure to wipe off any
water that is on the sunroof before
operating it.
WARNING
• Never adjust the sunroof or sunshade
while driving. This could result in
loss of control and an accident that
may cause death, serious injury, or
property damage.
• Make sure heads, hands, arms or
any other body parts or objects are
out of the way before operating the
sunroof.
• Do not extend your head, arms or
body outside the sunroof while
driving, to avoid serious injury.
• Do not leave the engine running
and the key in your vehicle with
unsupervised children. Unattended
children could operate the sunroof,
which could result in serious injury.
• Do not sit on the top of the vehicle. It
may cause injury or vehicle damage.
NOTICE
• Do not continue to move the sunroof
control lever after the sunroof is fully
opened, closed, or tilted. Damage
to the motor or system components
could occur.
• 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
Resetting the Sunroof
ODN8A059039
The sunroof may need to be reset if the
following conditions occur:
• The battery is discharged or
disconnect

ed or the sunroof fuse has
been replaced or disconnected
• The
sunroof control lever is not
oper

ating correctly
To reset the sunroof, perform the
following steps:
1.

T
urn the engine on and close
the sunroof glass and sunshade
completely.
2.

R
elease the control lever.
3.

Push and hold the sunr
oof 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 sunr
oof control
lever forward until the sunroof
operates as follows:
TILT
DOWN → SLIDE OPEN → SLIDE
CL

OSE
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 sunr oof 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 sunr

oof 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 Features5-64
exterior FeAtures
Hood
Opening the hood
ODN8A059040
1. Park the vehicle and set the parking brake.
2.

Pull the r
elease lever to unlatch the
hood. The hood should pop open
slightly.
ODN8A059041
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:
- An

y tools or other loose objects are
removed from the engine room area
or hood opening area
- All glo

ve, rags, or other combustible
material is removed from the engine
compartment
- All filler caps ar

e tightly and
correctly installed
2.

L
ower 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.

Convenient Features
5-70
Fuel Filler Door
Opening the fuel filler door
ODN8059050
1. Turn the engine off.
2.
E
nsure the driver’s door is unlocked.
3.

Push the fuel filler door near the 3
o

’clock position.
ODN8059051
3. Pull the fuel filler door (1) outw ard to
access the fuel tank cap.
4.
T

o remove the fuel tank cap (2), turn
it counterclockwise. You may hear a
hissing noise as the pressure inside
the tank equalizes.
5.

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 un
til 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.