ECU HYUNDAI SONATA HYBRID 2020 Owner's Manual

Convenient Features
5-34
THEFT-ALARM SYSTEM
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
remote key or smart key.
-The trunk is opened without using the
remote key or smart key.
-The engine hood is opened.
The alarm continues 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
5-43
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) Garage Door Opener Status Indicator : Closing or Closed
(5) HomeLink Operation Indicator
(6) Garage Door Opener Status Indicator : Opening or Opened
(7) HomeLink User Interface Indicator
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.

05
5-45
ODN8H050137N
4. Press the Original Transmitter
button until the indicator (7) is
turned continuously ON or flashes in
Green for approximately 10 seconds
and it indicates the programing is
completed.
5. However, the indicator (7) flashes
in Green continuously, but if the
garage door opener does not operate,
please continue to follow the step 6
and 7 (“Rolling Code Programming”
procedures).
6. Firmly press and release the “Learn,”
“Smart,” or “Program” button while
the indicator (7) flashes in Green.
Once the button is pressed, you have
approximately 30 seconds to initiate
the next step.
Information
At the garage door opener motor, (security
gate motor, etc.) locate the “Learn,”
“Smart,” or “Program” button. This
can usually be found where the hanging
antenna wire is attached to the motor-head
unit (see the device’s manual to identify
this button). The name and color of the
button may vary by manufacturer. A
ladder and/or second person may simplify
the following steps.
7. Return to the vehicle and firmly press,
hold for two seconds and release the
HomeLink button up to three times.
Do not press the HomeLink button
rapidly. At this point programming
is complete and your device should
operate when the HomeLink button is
pressed and released.
Information
• Some garage door openers require to
press the programmed button on the
mirror up to three times right after
the programming is just completed to
operate the garage door.
• The indicator (7) is turned ON in
Orange and flashes for about 60
seconds, during the programing mode
and if a programing is not succeeded
within the 60 seconds, the programing
mode will be abort.
HomeLink® should now activate your
rolling code equipped device.

Convenient Features
5-58
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.

Convenient Features
5-62
EXTERIOR FEATURES
Hood
Opening the hood
ODN8A059040
1. Park the vehicle and set the parking
brake.
2. Pull the release lever to unlatch the
hood. The hood should pop open
slightly.
ODN8H050041N
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.

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.

05
5-69
• 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
5-80
Luggage compartment lamp
ODN8059213L
The luggage compartment lamp comes
on when the trunk is opened.
NOTICE
The luggage compartment lamp comes
on as long as the trunk is open. To
prevent unnecessary battery system
drain, close the trunk securely after
using the luggage compartment.
Vanity mirror lamp
OOS047055
Push the switch to turn the light on or off.
•
: The lamp will turn on if this button is pressed.
•
: The lamp will turn o ff if this button is pressed.
NOTICE
Always have the switch in the off
position when the vanity mirror lamp
is not in use. If the sunvisor is closed
without the lamp off, it may discharge
the battery or damage the sunvisor.

Convenient Features
5-118
STORAGE COMPARTMENT
WARNING
Never store cigarette lighters, propane
cylinders, or other flammable/explosive
materials in the vehicle. These items
may catch fire and/or explode if the
vehicle is exposed to hot temperatures
for extended periods.
WARNING
ALWAYS keep the storage compartment
covers closed securely while driving.
Items inside your vehicle are moving as
fast as the vehicle. If you have to stop
or turn quickly, or if there is a crash, the
items may fly out of the compartment
and may cause an injury if they strike
the driver or a passenger.
NOTICE
To avoid possible theft, do not leave
valuables in the storage compartments.
Center Console Storage
ODN8059216
To open:
Grab and hold the latch on the arm rest
then lift the lid.
Glove Box
ODN8059217
To open:
Pull the lever (1).
WARNING
ALWAYS close the glove box door after
use.
An open glove box door can cause
serious injury to the passenger in an
accident, even if the passenger is
wearing a seat belt.

05
5-119
Cup Holder
Front
ODN8059218
Rear
ODN8059219
Cups or small beverages cups may be
placed in the cup holders.
WARNING
• Avoid abrupt starting and braking
when the cup holder is in use to
prevent spilling your drink. If hot
liquid spills, you could be burned.
Such a burn to the driver could cause
loss of vehicle control resulting in an
accident.
• Do not place uncovered or unsecured
cups, bottles, cans, etc., in the cup
holder containing hot liquid while
the vehicle is in motion. Injuries may
result in the event of a sudden stop
or collision.
• Only use soft cups in the cup holders.
Hard objects can injure you in an
accident.
WARNING
Keep cans or bottles out of direct sun
light and do not put them in a hot
vehicle. It may explode.
NOTICE
• Keep your drinks sealed while driving
to prevent spilling your drink. If liquid
spills, it may get into the vehicle’s
electrical/electronic system and
damage electrical/electronic parts.
• When cleaning spilled liquids do not
use hot air to blow out or dry the cup
holder. This may damage the interior.
INTERIOR FEATURES