change time HYUNDAI SONATA 2021 Owner's Manual

05
5-133
Temperature conversion
If the battery has been discharged or
disconnected, the temperature mode
display will reset to Centigrade.
To change the temperature unit from °C
to °F or °F to °C :
-
A
utomatic climate control system
Pr

ess the AUTO button for 3 seconds
while pressing the OFF button.
-

Ins
trument cluster
Go
to User Settings → Other →
T

emperature Unit.
The temperature unit on both the cluster
LCD display and the climate control
screen will change.
Air intake control
This is used to select the outside (fresh)
air position or recirculated air position.
To change the air intake control position,
push the control button.
Recirculated air position
With the recirculated air
position selected, air from the
passenger compartment will
be drawn through the heating
system and heated or cooled
according to the function
selected.
Outside (fresh) air position
With the outside (fresh) air
position selected, air enters
the vehicle from outside and
is heated or cooled according
to the function selected.
Information
Using the system primarily in Fresh mode
and Recirculation mode only when needed
is recommended for best results.
Prolonged operation of the heater in
Recirculation mode and without the A/C
ON can cause fogging of the windshield.
In addition, prolonged use of the A/C
ON in Recirculation mode may result in
excessively dry, dehumidified air in the
cabin.
WARNING
• Continued use of the climate control
system operation in Recirculation
mode for a prolonged period of
time may cause drowsiness to the
occupants in the cabin. This may lead
to loss of vehicle control which may
lead to an accident.
• Continued use of the climate control
system operation in Recirculation
mode with the A/C OFF may allow
humidity to increase inside the
cabin. This may cause condensation
to accumulate on the windshield and
obscure visibility.
• Do not sleep in your vehicle or
remain parked in your vehicle with
the windows up and either the
heater or the air conditioning ON for
prolonged periods of time. Doing so
may increase the levels of carbon
dioxide in the cabin which may lead
to serious injury or death.

Convenient Features
5-136
Air conditioning system operation tips
• If the vehicle has been parked in
direct sunlight during hot weather,
open the windows for a short time
to let the hot air inside the vehicle
escape.
• After sufficient cooling has been
achieved, switch back from the
recirculated air to the fresh outside air
position.
• To help reduce moisture inside of
the windows on rainy or humid
days, decrease the humidity inside
the vehicle by operating the air
conditioning system with the windows
and sunroof closed.
• Use the air conditioning system
every month only for a few minutes
to ensure maximum system
performance.
• If you operate air conditioner
excessively, the difference between
the temperature of the outside air and
that of the windshield could cause
the outer surface of the windshield
to fog up, causing loss of visibility. In
this case, set the mode selection knob
or button to the
position and fan
speed control to the lower speed.
System Maintenance
Cabin air filter
OIK047401L[A] : Outside air, [B] : Recirculated air
[C] : Cabin air filter, [D] : Blower
[E] : Evaporator core, [F] : Heater core
The cabin air filter is installed behind
the glove box. It filters the dust or other
pollutants that enter the vehicle through
the heating and air conditioning system.
Have the cabin air filter replaced by an
authorized HYUNDAI dealer according to
the maintenance schedule. If the vehicle
is being driven in severe conditions such
as dusty or rough roads, more frequent
cabin air filter inspections and changes
are required.
If the air flow rate suddenly decreases,
the system should be checked at an
authorized HYUNDAI dealer.

05
5-141
Auto Defogging System (Only
for Automatic Climate Control
System, if equipped)
ODN8059215
Auto defogging helps reduce the
possibility of fogging up the inside of the
windshield by automatically sensing the
moisture on inside the windshield.
The auto defogging system operates
when the heater or air conditioning is on.
0024003800370032
When the Auto Defogging
System operates, the
indicator will illuminate.
If a high amount of humidity is detected
in the vehicle, the Auto Defogging
System will be enabled.
The following steps will be performed
automatically:
Step 1) The A/C button will turn ON.
Step 2)

The air in
take control will change
to Fresh mode under low outside
temperature.
Step 3)

The mode will be changed t
o
defrost to direct airflow to the
windshield.
Step 4)

The f
an speed will be increased.
To cancel or reset the Auto Defogging
System
Press the front windshield defroster
button for 3 seconds when the ignition
switch is in the ON position.
When the Auto Defogging System is
canceled, defrost button indicator will
blink 3 times.
When the Auto Defogging System is
reset, defrost button indicator will blink 6
times without a signal.
Information
• When the air c onditioning is turned
on by Auto defogging system, if you
try to turn off the air conditioning,
the indicator will blink 3 times and
the air conditioning will not be
turned off.
•

T
o maintain the effectiveness and
efficiency of the Auto Defogging
System, do not select Recirculation
mode while the system is operating.
•

When the A
uto Defogging System is
operating, the fan speed adjustment
knob, the temperature adjustment
knob, and the air intake control
button are all disabled.
NOTICE
Do not remove the sensor cover located
on the upper end of the driver side
windshield glass.
Damage to system parts could occur
and may not be covered by your vehicle
warranty.

05
5-143
climATe conTrol ADDiTionAl feATUreS
Sunroof Inside Air Recirculation
(if equipped)
When the sunroof is opened, outside
(fresh) air will be automatically selected.
At this time, if you press the air intake
control button, recirculated air position
will be selected but will change back
to outside (fresh) air after 3 minutes.
When the sunroof is closed, the air
intake position will return to the original
position that was selected.
Automatic Ventilation
The system automatically selects the
fresh mode when the climate control
system operates Floor-Level or Bi-Level
for more than 5 minutes and the outdoor
temperature is under 59°F (15°C).

6-4
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.
While Driving

06
6-19
WARNING
To reduce the risk of SERIOUS INJURY
or DEATH:
• ALWAYS wear your seatbelt. In a
collision, an unbelted occupant
is significantly more likely to be
seriously injured or killed than a
properly belted occupant.
• Avoid high speeds when cornering or
turning.
• Do not make quick steering wheel
movements, such as sharp lane
changes or fast, sharp turns.
• The risk of rollover is greatly
increased if you lose control of your
vehicle at highway speeds.
• Loss of control often occurs if two or
more wheels drop off the roadway
and the driver over steers to reenter
the roadway.
• In the event your vehicle leaves
the roadway, do not steer sharply.
Instead, slow down before pulling
back into the travel lanes.
• HYUNDAI recommends you follow all
posted speed limits.
Information
Kickdown Mechanism (if equipped)
If you depress the accelerator pedal
equipped with Kickdown device beyond
the pressure point, it maximizes the engine
power. You may feel when the Kickdown
equipment starts to work and hear the
sound of Kickdown operation. It is normal
operation, not a failure.
Paddle Shifter
(Manual Shift Mode)
(if equipped)
ODN8069009
The paddle shifter is available when the
gear is in the D (Drive) position.
Pull the [+] or [-] paddle shifter once to
shift up or down one gear and the system
changes from automatic shift mode to
manual shift mode.
To change back to the automatic shift
mode from manual shift mode, do one of
the following:
• Gently depress the accelerator pedal
for more than 5 seconds.
• Drive the vehicle under 6 mph (10
km/h).
• Pull and hold the right side paddle
shifter.
Information
If the [+] and [-] paddle shifters are pulled
at the same time, gear shift may not occur.

06
6-23
Information
• A clicking sound may be heard while
operating or releasing the EPB. These
conditions are normal and indicate that
the EPB is functioning properly.
• When leaving your keys with a parking
attendant or assistant, make sure to
inform him/her how to operate the
EPB.
OIK057079N
AUTO HOLD turning Off!
Press brake pedal
When the conversion from Auto Hold to
EPB is not working properly a warning
will sound and a message will appear.
OIK057077N
Parking brake automatically engaged
If the EPB is applied while Auto Hold is
activated, a warning will sound and a
message will appear.
EPB malfunction indicator
ODN8069014
This warning light illuminates if the
ignition switch is set to the ON position
and goes off in approximately 3 seconds
if the system is operating normally.
If the EPB malfunction indicator
remains on, comes on while driving, or
does not come on when the ignition
switch is changed to the ON position,
this indicates that the EPB may have
malfunctioned.
If this occurs, have the system checked
by an authorized HYUNDAI dealer.
The EPB malfunction indicator may
illuminate when the ESC indicator comes
on to indicate that the ESC is not working
properly, but it does not indicate a
malfunction of the EPB.
NOTICE
• If the EPB warning light is still on,
have the system checked by an
authorized HYUNDAI dealer.
• If the parking brake warning light
does not illuminate or blinks even
though the EPB switch was pulled
up, the EPB may not be applied.
• If the parking brake warning light
blinks when the EPB warning light is
on, press the switch, and then pull it
up. Repeat this one more time. If the
EPB warning does not go off, have
the system checked by an authorized
HYUNDAI dealer.

06
6-25
ODN8069016
2. When you stop the vehicle completely by depressing the brake
pedal, the Auto Hold maintains the
brake pressure to hold the vehicle
stationary. The indicator changes from
white to green.
3.

The v
ehicle will remain stationary
even if you release the brake pedal.
4.
If EPB is applied, A

uto Hold will be
released.
To release :
• If you press the accelerator pedal
with the gear in D (Drive), R (Reverse)
or Manual shift mode, the Auto Hold
will be released automatically and the
vehicle will start to move. The AUTO
HOLD indicator changes from green
to white.
• If the vehicle is restarted using the
cruise control toggle switch (RES+
or SET-) while Auto Hold and cruise
control is operating, the Auto Hold will
be released regardless of accelerator
pedal operation. The AUTO HOLD
indicator changes from green to
white.
WARNING
When the AUTO HOLD is automatically
released by depressing the accelerator
pedal, always take a look around your
vehicle.
Slowly depress the accelerator pedal
for a smooth start.
To cancel :
ODN8069017
1. Depress the brake pedal.
2.

Pr
ess the [AUTO HOLD] switch.
The AUTO HOLD indicator will turn off.
Information
• The Auto Hold does not operate when:
-The driver's door

is opened
-The engine hood is opened
-The gear

is in P (Park)
-The EPB is applied
• For

your safety, the Auto Hold
automatically switches to EPB when:
- The driver's door

is opened with the
gear in D (Drive) or N (Neutral)
- The trunk is opened with the gear

in
R (Reverse)
- The engine hood is opened with the
gear

in D (Drive) or N (Neutral)
-The vehicle stops for

more than 10
minutes
- The vehicle stands on a steep slope
-The vehicle moves several times
••CLUSTER

6-28
Using ABS
To obtain the maximum benefit from
your ABS in an emergency situation,
do not attempt to modulate your brake
pressure and do not try to pump your
brakes. Depress your brake pedal as hard
as possible.
When you apply your brakes under
conditions which may lock the wheels,
you may hear sounds from the brakes,
or feel a corresponding sensation in the
brake pedal. This is normal and it means
your ABS is active.
ABS does not reduce the time or distance
it takes to stop the vehicle.
Always maintain a safe distance from the
vehicle in front of you.
ABS will not prevent a skid that results
from sudden changes in direction, such
as trying to take a corner too fast or
making a sudden lane change. Always
drive at a safe speed for the road and
weather conditions.
ABS cannot prevent a loss of stability.
Always steer moderately when braking
hard. Severe or sharp steering wheel
movement can still cause your vehicle to
veer into oncoming traffic or off the road.
On loose or uneven road surfaces,
operation of the anti-lock brake system
may result in a longer stopping distance
than for vehicles equipped with a
conventional brake system.
The ABS warning light (
) will stay on
for several seconds after the ignition
switch is in the ON position. During
that time, the ABS will go through self-
diagnosis and the light will go off if
everything is normal. If the light stays on,
you may have a problem with your ABS.
Contact an authorized HYUNDAI dealer
as soon as possible.
WARNING
If the ABS warning light () is on and
stays on, you may have a problem with
the ABS. Your power brakes will work
normally. To reduce the risk of serious
injury or death, contact your HYUNDAI
dealer as soon as possible.
CAUTION
When you drive on a road having poor
traction, such as an icy road, and apply
your brakes continuously, the ABS will
be active continuously and the ABS
warning light (
) may illuminate. Pull
your car over to a safe place and turn
the engine off.
Restart the engine. If the ABS warning
light is off, then your ABS system is
normal.
Otherwise, you may have a problem
with your ABS system. Contact an
authorized HYUNDAI dealer as soon as
possible.
Information
When you jump start your vehicle because
of a drained battery, the ABS warning
light (
) may turn on at the same
time. This happens because of the low
battery voltage. It does not mean your
ABS is malfunctioning. Have the battery
recharged before driving the vehicle.
While Driving

6-38
CUSTOM mode
In CUSTOM mode, the driver
can select separate modes
and combine them on the
infotainment system screen.
- E

ngine/Transmission: NORMAL/
SPORT
- S

teering wheel: NORMAL/SPORT
For more infomation, refer to the
separately supplied manual with your
vehicle.
• When CUSTOM mode is selected
by using the DRIVE MODE button,
the CUSTOM mode indicator will
illuminate.
SPORT mode
SPORT mode manages the
driving dynamics by
automatically adjusting the
steering effort, the engine
and transmission control
logic for enhanced driver
performance.
• When SPORT mode is selected by
using the DRIVE MODE button, the
SPORT indicator will illuminate.
• Whenever the engine is restarted,
the Drive Mode will revert back to
NORMAL mode. If SPORT mode is
desired, re-select SPORT mode from
the DRIVE MODE button.
• When SPORT mode is activated:
- The engine rpm will t

end to remain
raised over a certain length of time
even after releasing the accelerator
- Upshifts ar

e delayed when
accelerating
Information
In SPORT mode, the fuel efficiency may
decrease.
SMART mode
00360030002400350037
SMART mode selects the
proper driving mode among
NORMAL and SPORT by
judging the driver’s driving
habits (i.e. Economic or
Aggressive (Sportive)) from
the brake pedal depression
or the steering wheel
operation.
• Toggle the DRIVE MODE button to
select SMART mode. When SMART
mode is selected, the indicator
illuminates on the instrument cluster.
• SMART mode automatically controls
the vehicle driving, such as gear
shifting patterns and engine torque,
in accordance with the driver’s driving
habits.
Information
When you dynamically drive the vehicle
in SMART mode by abruptly decelerating
or sharply turning the driving mode
changes to SPORT mode. However, it may
adversely affect fuel economy.
While Driving