2020 Hyundai Sonata check engine

Convenient Features5-148
Wireless Cellular Phone
Charging System (if equipped)
ODN8059223ODN8059223
[A]: Indicator light, [B]: Charging pad
On certain models, the vehicle comes
equipped with a wireless cellular phone
charger.
The system is available when all doors
are closed, and when the ignition switch
is ON.
To charge a cellular phone
The wireless cellular phone charging
system charges only the Qi-enabled
cellular phones. Read the label on the
cellular phone accessory cover or visit
your cellular phone manufacturer’s
website to check whether your cellular
phone supports the Qi technology.
The wireless charging process starts
when you put a Qi-enabled cellular
phone on the wireless charging unit.
1. Remove other items, including the smart key, from the wireless charging
unit. If not, the wireless charging
process may be interrupted. Place
the cellular phone on the center of
the charging pad (
).
2. The indicator light is orange when the cellular phone is charging. The
indicator light turns green when
phone charging is complete.
3. You can turn ON or OFF the wireless charging function in the user settings
mode on the instrument cluster. For
further information, refer to the “LCD
Display Modes” in this chapter.
If your cellular phone is not charging:
- Slightly change the position of the cellular phone on the charging pad.
- Make sure the indicator light is orange.
The indicator light will blink orange for 10
seconds if there is a malfunction in the
wireless charging system.
In this case, temporarily stop the
charging process, and re-attempt to
charge your cellular phone again.
The system warns you with a message
on the LCD display if the cellular phone
is still on the wireless charging unit after
the engine is turned OFF and the front
door is opened.
Information
For some manufacturers’ cellular phones,
the system may not warn you even though
the cellular phone is left on the wireless
charging unit. This is due to the particular
characteristic of the cellular phone and
not a malfunction of the wireless charging.
NOTICE
• The wireless cellular phone charging system may not support certain
cellular phones, which are not
verified for the Qi specification (
).
• When placing your cellular phone on the charging mat, position the
phone in the middle of the mat for
optimal charging performance. If
your cellular phone is off to the side,
the charging rate may be less and in
some cases the cellular phone may
experience higher heat conduction.
• In some cases, the wireless charging may stop temporarily when the
Remote Key or Smart Key is used,
either when starting the vehicle or
locking/unlocking the doors, etc.
• When charging certain cellular phones, the charging indicator
may not change to green when the
cellular phone is fully charged.

While Driving6-4
WARNING
Carbon monoxide (CO) gas is toxic. Breathing CO can cause unconsciousness and
death.
Engine exhaust contains carbon monoxide which cannot be seen or smelled.
Do not inhale engine exhaust.
If at any time you smell engine exhaust inside the vehicle, open the windows
immediately. Exposure to CO can cause unconsciousness and death by asphyxiation.
Be sure the exhaust system does not leak.
The exhaust system should be checked whenever the vehicle is raised to change the
oil or for any other purpose. If you hear a change in the sound of the exhaust or if you
drive over something that strikes the underneath side of the vehicle, have the exhaust
system checked as soon as possible by an authorized HYUNDAI dealer.
Do not run the engine in an enclosed area.
Letting the engine idle in your garage, even with the garage door open, is a hazardous
practice. Run the engine only long enough to start the engine and to move the vehicle
out of the garage.
Avoid idling the engine for prolonged periods with people inside the vehicle.
If it is necessary to idle the engine for a prolonged period with people inside the
vehicle, be sure to do so only in an open area with the air intake set at "Fresh" and fan
control set to high so fresh air is drawn into the interior.
Keep the air intakes clear.
To assure proper operation of the ventilation system, keep the ventilation air intakes
located in front of the windshield clear of snow, ice, leaves, or other obstructions.
If you must drive with the trunk open:
Close all windows.
Open instrument panel air vents.
Set the air intake control at "Fresh", the air flow control at "Floor" or "Face", and the fan
control set to high.
WARNING
CALIFORNIA PROPOSITION 65 WARNING
Engine exhaust and a wide variety of automobile components including
components found in the interior furnishings in a vehicle, contain or emit harmful
chemicals known to the State of California to cause cancer and birth defects and
reproductive harm. In addition, certain fluids contained in vehicles and certain
products of components contain or emit chemicals known to the State of California
to cause cancer and birth defects or other reproductive harm.

06
6-7
Key ignition switch positions
Switch
Position Action Notice
LOCK T
o turn the ignition switch to the
LOCK position, put the key in at
the ACC position and turn the key
towards the LOCK position.
The ignition key can be removed in
the LOCK position.
(The shift button must be in the P
(Park) position)
ACC Electrical accessories are usable.
The steering wheel unlocks.
ON This is the normal key position when
the engine has started.
All features and accessories are
usable.
The warning lights can be checked
when you turn the ignition switch
from ACC to ON. Do not leave the ignition switch in
the ON position when the engine is
not running in order to prevent the
battery from discharging.
START To start the engine, turn the ignition
switch to the START position. The
switch returns to the ON position
when you let go of the key. The engine will crank until you
release the key.

While Driving6-10
Engine Stop/Start button positions
Button
Position Action Notice
OFF T
o turn off the engine, press the
Engine Start/Stop button with shift
button in P (Park).
When you press the Engine Start/
Stop button without the shift
button in P (Park), the Engine Start/
Stop button does not turn to the
OFF position, but turns to the ACC
position.
ACC Press the Engine Start/Stop button
when the button is in the OFF
position without depressing the
brake pedal.
Electrical accessories are usable. If you leave the Engine Start/Stop
button in the ACC position for more
than one hour, the battery power will
turn off automatically to prevent the
battery from discharging.
ON Press the Engine Start/Stop button
while it is in the ACC position
without depressing the brake pedal.
The warning lights can be checked
before the engine is started. Do not leave the Engine Start/Stop
button in the ON position when the
engine is not running to prevent the
battery from discharging.
START To start the engine, depress the
brake pedal and press the Engine
Start/Stop button with the shift
button in the P (Park) or in the N
(Neutral) position.
For your safety, start the engine
with the shift button in the P (Park)
position. If you press the Engine Start/Stop
button without depressing the brake
pedal, the engine does not start
and the Engine Start/Stop button
changes as follows:
OFF → ACC → ON → OFF or ACC
However, the engine may start if you
depress the brake pedal within 0.5
second after pressing the Engine
Start/Stop button from the OFF
position.

06
6-11
Starting the engine
WARNING
• Always wear appropriate shoes when
operating your vehicle.
Unsuitable shoes, such as high heels,
ski boots, sandals, flip-flops, etc.,
may interfere with your ability to use
the brake and accelerator pedals.
• Do not start the vehicle with the
accelerator pedal depressed. The
vehicle can move and lead to an
accident.
• Wait until the engine rpm is normal.
The vehicle may suddenly move if
the brake pedal is released when the
rpm is high.
Information
• The engine will start by pressing the
Engine Start/Stop button, only when
the smart key is in the vehicle.
• Even if the smart key is in the vehicle,
if it is far away from the driver, the
engine may not start.
• When the Engine Start/Stop button
is in the ACC or ON position, if any
door is open, the system checks for the
smart key. If the smart key is not in the
vehicle, the “
” indicator will blink
and the warning "Key not in vehicle"
will come on and if all doors are closed,
the chime will also sound for about
5 seconds. Keep the smart key in the
vehicle when using the ACC position or
if the vehicle engine is ON.
1. Always carry the smart key with you.
2. Make sure the parking brake is applied.
3. Make sure the gear is in P (Park).
4. Depress the brake pedal.
5. Press the Engine Start/Stop button.
Information
• Do not wait for the engine to warm up
while the vehicle remains stationary.
Start driving at moderate engine
speeds. (Aggressive accelerating and
decelerating should be avoided.)
• Always start the vehicle with your foot
on the brake pedal. Do not depress the
accelerator while starting the vehicle.
Do not rev the engine while warming
it up.
NOTICE
To prevent damage to the vehicle:
• If the engine stalls while you are in
motion, do not attempt to move the
shift button to the P (Park) position.
If traffic and road conditions permit,
you may put the shift button in the N
(Neutral) position while the vehicle
is still moving and press the Engine
Start/Stop button in an attempt to
restart the engine.
• Do not push or tow your vehicle to
start the engine.

While Driving6-14
Transmission ranges
The indicator in the instrument cluster
displays the gear position when the
ignition switch is in the ON position.
WARNING
To reduce the risk of serious injury or
death:
• ALWAYS check the surrounding
areas near your vehicle for people,
especially children, before shifting a
vehicle into D (Drive) or R (Reverse).
• Before leaving the driver’s seat,
always make sure the gear is in
the P (Park) position, then set
the parking brake, and place the
ignition switch in the LOCK/OFF
position. Unexpected and sudden
vehicle movement can occur if these
precautions are not followed.
• If equipped, do not use the engine
brake (shifting from a high gear to
lower gear using the paddle shifters)
rapidly on slippery roads.
P (Park)
Always come to a complete stop before
shifting in
to P (Park).
To shift from P (Park), you must depress
firmly on the brake pedal and make sure
your foot is off the accelerator pedal.
The gear must be in P (Park) before
turning the engine off.
WARNING
• Shifting into P (Park) while the
vehicle is in motion may cause you to
lose control of the vehicle.
• After the vehicle has stopped, always
make sure the gear is in P (Park),
apply the parking brake, and turn
the engine off.
• Do not use the P (Park) position in
place of the parking brake.
R (Reverse)
Use this position to drive the vehicle
backw

ard.
NOTICE
Always come to a complete stop before
shifting into or out of R (Reverse); you
may damage the transmission if you
shift into R (Reverse) while the vehicle is
in motion.
When the vehicle is stopped in
R (Reverse) position, if you open
the driver's door with the seat belt
unfastened, the gear is shifted to P (Park)
position automatically.
However when the vehicle moves
in R (Reverse) position, if you open
the driver's door with the seat belt
unfastened, the gear may be not shifted
to P (Park) position automatically for
protecting the automatic transmission.
N (Neutral)
The wheels and transmission are not
engaged.
U

se N (Neutral) if you need to restart a
stalled engine, or if it is necessary to stop
with the engine ON. Shift into P (Park)
if you need to leave your vehicle for any
reason.
Always depress the brake pedal when
you are shifting from N (Neutral) to
another gear.
WARNING
Do not shift into gear unless your foot is
firmly on the brake pedal. Shifting into
gear when the engine is running at high
speed can cause the vehicle to move
very rapidly. You could lose control of
the vehicle and hit people or objects.

06
6-17
LCD Display Message
Shifting conditions not met
The warning message appears on the
LCD display, when engine RPM is too
high, or when driving speed is too fast to
shift the gear.
We recommend you decrease the engine
speed or slow down before shifting the
gear.
Press brake pedal to change gear
The warning message appears on the
LCD display, when the brake pedal is not
depressed while shifting the gear.
We recommend you to depress the brake
pedal and then shift the gear.
Shift to P after stopping
The warning message appears on the
LCD display, when the gear is shifted to P
(Park) while the vehicle is moving.
Stop the vehicle before shifting to P
(Park).
PARK engaged
The warning message appears on the
LCD display, when the gear is shifted to P
(Park) while the vehicle is moving.
Stop the vehicle before shifting to P
(Park).
Press and hold OK button to stay in
Neutral when vehicle is Off
The warning message appears on
the LCD display, when pushing the N
(Neutral) button. If you want to stay N
(Neutral) after turning off the engine,
press and hold the “OK” button on the
steering wheel more than 1 second.
Vehicle will stay in (N). Change gear
to cancel
The warning message appears on the
LCD display, when depressing the "OK"
button on the steering wheel after the
message ("Press and hold OK button
to stay in Neutral when vehicle is Off")
appears on the cluster LCD display. The
gear stays in N(Neutral) position after
turning off the engine.
NEUTRAL engaged
The message appears on the LCD
display, when the N (Neutral) position is
engaged.
Gear already selected
The message appears on the LCD
display, when pushing the current shift
button again.
Shift button held down
The warning message appears on the
LCD display, when the shift button is
pressed continuously or the shift button
does not properly operate. Clean the
surroundings of gear shift button.
If this message appears again, have
the vehicle inspected by an authorized
HYUNDAI dealer.
Shifter system malfunction
The warning message appears on the
LCD display, when the transmission
or the shift button does not properly
operate in the P (Park) position.
In this case, have the vehicle inspected
by an authorized HYUNDAI dealer.
Check shift controls
The warning message appears on the
LCD display, when there is a malfunction
with transmission shift button.
In this case, have the vehicle inspected
by an authorized HYUNDAI dealer.

While Driving6-24
Parking brake warning light
Check the parking brake
warning light by placing the
ignition switch to the ON
position (do not start the
engine).
This light will be illuminated when the
parking brake is applied with the ignition
switch in the START or ON position.
If the parking brake warning light
remains on after the parking brake
is released while engine is running,
there may be a malfunction in the
brake system. Immediate attention is
necessary.
If at all possible, cease driving the vehicle
immediately. If that is not possible,
use extreme caution while operating
the vehicle and only continue to drive
the vehicle until you can reach a safe
location.
Emergency braking
If there is a problem with the brake
pedal while driving, emergency braking
is possible by pulling up and holding
the EPB switch. Braking is possible only
while you are holding the EPB switch.
However, braking distance will be longer
than normal.
WARNING
Do not operate the parking brake while
the vehicle is moving except in an
emergency situation. It could damage
the brake system and lead to a severe
accident.
Information
During emergency braking, the parking
brake warning light will illuminate to
indicate that the system is operating.
NOTICE
If you continuously notice a noise or
burning smell when the EPB is used
for emergency braking, have system
checked by an authorized HYUNDAI
dealer.
When the EPB (Electronic Parking Brake)
does not r
elease
If the EPB does not release normally,
contact an authoriz
ed HYUNDAI dealer
by loading the vehicle on a flatbed tow
truck and have the system checked.
Auto Hold
The Auto Hold maintains the vehicle in a
standstill even though the brake pedal is
not depressed after the driver brings the
vehicle to a complete stop by depressing
the brake pedal.
To apply :
ODN8069015ODN8069015
1. With the driver's door and engine hood closed, depress the brake
pedal and then press the [AUTO
HOLD] switch. The white AUTO HOLD
indicator will come on and the system
will be in the standby position.
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