2023 HYUNDAI TUCSON heating

Seats & Safety System
3-20
• When pressing the switch for more
than 1.5 seconds with the seat warmer
operating, the seat warmer will turn
OFF.
• The seat warmer defaults to the OFF
position whenever the ignition switch
is ON.
• Auto Comfort Control (for driver’s
seat) (if equipped)
-The seat warmer automatically
controls the seat temperature
depending on the ambient
temperature and the set climate
control temperature when the
engine is running. If the seat
warmer switch is pushed, the seat
warmer will have to be controlled
manually.
To use this function, it must be
activated from the Settings menu in
the AV/AVN system screen.
-The seat warmer defaults to the
OFF position whenever the ignition
switch is ON. However, if the Auto
Comfort Control function is ON, the
driver’s seat warmer will turn on
and off depending on the ambient
temperature and the set climate
control temperature.
For more details, refer to the separately
supplied Infotainment manual with
your vehicle.
Information
With the seat warmer switch in the ON
position, the heating system in the seat
turns off or on automatically depending on
the seat temperature.
Air ventilation seat (if equipped)
„„ Type A
ONX4030027
„„ Type B
ONX4E030067
The air ventilation seats are provided
to cool the front seats by blowing air
through small vent holes on the surface
of the seat cushions and seatbacks.
When the operation of the air ventilation
seat is not needed, keep the switches in
the OFF position.
While the engine is running, push the
switch to cool the driver's seat or the
front passenger's seat (if equipped).

Instrument cluster
4-6
Engine coolant temperature gauge
„„4.2-inch„„10.25-inch
ONX4040007OTM040010This gauge indicates the temperature
of the engine coolant when the ignition
switch is in the ON position.
NOTICE
If the gauge pointer moves beyond the
normal range area toward the H (or
HOT) position, it indicates overheating
that may damage the engine.
Do not continue driving with an
overheated engine. If your vehicle
overheats, refer to “If the Engine
Overheats” section in chapter 8.
WARNING
Never remove the engine coolant
reservoir cap when the engine is hot.
The engine coolant is under pressure
and could cause a severe burn or injury.
Wait until the engine is cool before
adding coolant to the reservoir.
Fuel gauge
„„4.2-inch„„10.25-inch
ONX4040008 OTM040012This gauge indicates the approximate
amount of fuel remaining in the fuel tank.
Information
• The fuel tank capacity is given in
chapter 2.
• The fuel gauge is supplemented by
a low fuel warning light, which will
illuminate when the fuel tank is nearly
empty.
• On inclines or curves, the fuel gauge
pointer may fluctuate or the low fuel
warning light may come on earlier than
usual due to the movement of fuel in
the tank.
WARNING
Running out of fuel can expose vehicle
occupants to danger.
You must stop and obtain additional
fuel as soon as possible after the
warning light comes on or when the
gauge indicator comes close to the “E
(Empty) or 0” level.
NOTICE
Avoid driving with an extremely low
fuel level. Running out of fuel could
cause the engine to misfire damaging
the catalytic converter.

04
4-27
Engine overheated / Engine has
overheated
This message is displayed when the
engine coolant temperature is above
248°F (120°C). This means that the
engine is overheated and may be
damaged.
If your vehicle is overheated, refer to
“Overheating” section in chapter 8.
Check headlight
This warning message is displayed if the
headlamps are not operating properly.
In addition, if a specific lamp(turn signal
lamp etc.) is not operating properly, the
warning message according to a specific
lamp (turn signal lamp etc.) is displayed.
A corresponding bulb may need to be
replaced.
Make sure to replace the burned out
bulb with a new one of the same wattage
rating.
Check turn signal
This message is displayed if the turn
signal lamps are not operating properly.
A lamp may need to be replaced.
Make sure to replace the burned out
bulb with a new one of the same wattage
rating.
Check headlamp LED
This message is displayed if there is a
problem with the LED headlamp. We
recommend that you have the vehicle
inspected by an authorized HYUNDAI
dealer.

Lighting ........................................................................\
.....................................5-79Exterior lights........................................................................\
...................................... 5-79
High Beam Assist (HBA) ........................................................................\
........5-83System settings ........................................................................\
..................................5-83
System operation ........................................................................\
..............................5-84
System malfunction and limitations ........................................................................\
5-84
Interior lights ........................................................................\
...........................5-86Interior Lamp AUTO OFF ........................................................................\
...................5-86
Front lamps ........................................................................\
........................................5-86
Rear lamps ........................................................................\
.........................................5-87
Vanity mirror lamp ........................................................................\
.............................5-87
Glove box lamp ........................................................................\
...................................5-87
Luggage compartment lamp ........................................................................\
...........5-88
Welcome system ........................................................................\
..............................5-88
Wipers and washers ........................................................................\
................5-90Windshield wipers ........................................................................\
.............................5-90
Front windshield washers ........................................................................\
..................5-92
Rear window wiper and washer ........................................................................\
........5-93
Manual climate control system ......................................................................5-94Heating and air conditioning ........................................................................\
.............5-95
System operation ........................................................................\
..............................5-99
System maintenance ........................................................................\
........................5-101
Automatic climate control system ................................................................5-103Automatic heating and air conditioning .................................................................5-104
Manual heating and air conditioning ......................................................................5-105
Multi Air Mode ........................................................................\
...................................5-111
System operation ........................................................................\
..............................5-112
System maintenance ........................................................................\
........................5-114
Windshield defrosting and defogging ...........................................................5-116Manual climate control system ........................................................................\
........5-116
Automatic climate control system ........................................................................\
...5-117
Auto Defogging System on Models with Automatic Temperature Control ...........5-118
Rear window defroster ........................................................................\
.....................5-119
5

05
5-71
Automatic reverse
ONX4E050030
During power opening and closing if the
power liftgate is blocked by an object or
part of the body, the power liftgate will
detect the resistance.
• If the resistance is detected while
opening the liftgate, it will stop and
move in the opposite direction.
• If the resistance is detected while
closing the liftgate, it will stop and
move in the opposite direction.
However, if the resistance is weak such
as from an object that is thin or soft, or
the liftgate is near the latched position,
the automatic stop and reversal may not
detect the resistance. If the automatic
reversal feature operates continuously
more than twice during opening or
closing operation, the power liftgate may
stop at that position. At this time, close
the liftgate manually and operate the
liftgate automatically again.
WARNING
Never intentionally place any object
or part of your body in the path of
the power liftgate to make sure the
automatic reverse function operates.
NOTICE
Do not put heavy objects on the power
liftgate before you operate the power
liftgate. Additional weight may damage
the operation of the system.
Non-operating conditions of the
power liftgate
• The power liftgate does not open
when the vehicle is in motion.
The chime will sound if you drive
over 2mph (3km/h) with the
liftgate opened. Stop your vehicle
immediately at a safe place and check
if your liftgate is opened.
• Operating the power liftgate more
than 5 times continuously could
cause damage to the operating motor.
If this occurs, the power liftgate
system enters into thermal protection
mode to prevent the motor from
overheating. In thermal protection
mode, the power liftgate will not
operate. If any of the power liftgate
buttons are pressed to try to open the
liftgate, the chime will sound 3 times
but the liftgate will not operate.
Allow the power liftgate system
to cool for about 1 minute before
operating the system again.
• The power liftgate can be operated
when the engine is not running.
However the power liftgate operation
consumes large amounts of vehicle
electric power. To prevent the battery
from being discharged, do not
operate it excessively e.g.: more than
approximately 10 times repeatedly.
• To prevent the battery from being
discharged, do not leave the power
liftgate in the open position for a long
lime.
• When jacking up the vehicle to
change a tire or repair the vehicle, do
not operate the power liftgate. This
could cause the power liftgate to
operate improperly.
• In cold and wet climates, the power
liftgate may not work properly due to
freezing conditions.

05
5-95
Mode selection
The actual shape of air conditioner may differ from the illustration.
ONX4050102
The mode selection button controls the direction of the air flow through the ventilation
system.
Heating and air conditioning
1. Start the engine.
2. Set the mode to the desired position.
To improve the effectiveness of
heating and cooling, select:
-Heating:
-Cooling:
3. Set the temperature control to the
desired position.
4. Set the air intake control to the
outside (fresh) air position.
5. Set the fan speed control to the
desired speed.
6. If air conditioning is desired, turn the
air conditioning system on.

05
5-97
„„Front
ONX4050104
„„Rear
ONX4050105
Instrument panel vents
The instrument panel vent air flow can
be directed up/down or left/right using
the vent adjustment lever. The air flow
can also be CLOSED using the vent
adjustment lever.
Temperature control
ONX4E050106The temperature will increase by turning
the knob to the right. The temperature
will decrease by turning the knob to the
left.
Air intake control
This is used to select outside (fresh) air
position or recirculated air position. To
change the air intake control position,
press 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.

Convenient features
5-98
Information
Using the system in the fresh air position is
recommended.
Prolonged operation of the heater in the
recirculated air position (without air
conditioning selected) can cause fogging of
the windshield and side windows and the
air within the passenger compartment will
become stale.
In addition, prolonged use of the air
conditioning with the recirculated air
position selected will result in excessively
dry air in the passenger compartment.
WARNING
• Continued climate control system
operation in the recirculated air
position may allow humidity to
increase inside the vehicle which
may fog the glass and obscure
visibility.
• Do not sleep in a vehicle with the air
conditioning or heating system on. It
may cause serious harm or death due
to a drop in the oxygen level and/or
body temperature.
• Continued climate control system
operation in the recirculated air
position can cause drowsiness
or sleepiness, and loss of vehicle
control. Set the air intake control
to the outside (fresh) air position as
much as possible while driving.
Fan speed control
ONX4050107NTurn the knob to the right to increase
the fan speed and airflow. Turn the knob
to the left to decrease fan speed and
airflow.
Setting the fan speed control knob to the
“0” position turns off the fan.
NOTICE
Operating the fan speed when the
ignition switch is in the ON position
could cause the battery to discharge.
Operate the fan speed when the engine
is running.
Air conditioning (A/C) (if equipped)
ONX4050108Press the A/C button to turn the air
conditioning system on (indicator light
will illuminate). Press the button again to
turn the air conditioning system off.