2021 GENESIS G80 cooling

Convenient Features
5-96
Automatic Temperature Control
Mode
The Automatic Climate Control System
is controlled by setting the desired
temperature.
1. Press the AUTO button.
The mode selection, fan speed,
air intake and air-conditioning will
be controlled automatically by the
temperature setting you select.
OJX1059246
2. When the climate control system is
being automatically controlled, fan
speed can be selected (Low/Medium/
High).
-HIGH: Use when quick heating or
cooling is preferred with higher fan
speed capability.
-MEDIUM: Use when medium fan
speed is preferred for cooling or
heating with moderate fan speed
capability.
-LOW: Use when low fan speed is
preferred for cooling or heating with
lower fan speed capability.
3. Turn the temperature control knob
to the desired temperature. If the
temperature is set to the lowest
setting (Lo), the air conditioning
system will operate continuously.
After the interior has cooled
sufficiently, adjust the knob to
a higher temperature set point
whenever possible.
To turn the automatic operation off,
select any function of the following:
- Mode selection button
-Front windshield defroster button
(Press the button one more time
to deselect the front windshield
defroster function. The ‘AUTO’
sign will illuminate on the climate
information screen once again.)
-Fan speed control icon or knob
-A/C (air conditioning) icon
The selected function will be controlled
manually while other functions operate
automatically.
For your convenience and to improve the
efficiency of the climate control, use the
AUTO button and set the temperature to
72 °F (22 °C).
To change the temperature unit from °C
to °F or °F to °C:
Press the AUTO button for 3 seconds
while pressing the OFF button.

05
5-97
Information
ORG3050065
Never place anything near the ambient
light/solar sensor to ensure better control
of the heating and cooling system.
Manual Temperature Control
Mode
The heating and cooling system can be
controlled manually by pushing buttons
other than the AUTO button. In this case,
the system works sequentially according
to the order of buttons selected.
When pressing any button except the
AUTO button while using automatic
operation, the functions not selected will
be controlled automatically.
1. Start the vehicle.
2. Set the mode to the desired position.
To improve the effectiveness of
heating and cooling, select the mode
according to the following:
-Heating:
-Cooling:
3. Set the temperature control to the
desired position.
4. Set the air intake control to Fresh or
Recirculation mode.
5. Set the fan speed control to the
desired speed.
6. If air conditioning is desired, turn the
air conditioning system on.
7. Press the AUTO button to revert
back to full automatic control of the
system.
The climate control system settings
will be maintained, even when the
vehicle is turned OFF. However, the
climate control system settings will be
initialized when the battery has been
discharged, or when the cables have
been disconnected.
In this case, adjust the climate control
system settings again.
When starting the vehicle in cold
weather the more efficient way to heat
the passenger compartment is to do the
following.
- Turn off or lower the blower, right
after starting the engine.
• Allow the engine to warm up during
this time since the air flow from the
heater is still cold.
-After a few minutes of engine warm
up, turn on or set the fan to a higher
level and adjust the temperature
setting to hot.

05
5-105
System Operation
Cooling / Ventilation
1. Select the Face Level mode.
2. Set the air intake control to fresh or
recirculation mode.
3. Set the temperature control to the
desired position.
4. Set the fan speed control to the
desired speed.
Heating
1. Select the Floor Level mode.
2. Set the air intake control to fresh or
recirculation mode.
3. Set the temperature control to the
desired position.
4. Set the fan speed control to the
desired speed.
5. If desired, turn the air conditioning ON
with the temperature control knob set
to heat in order to dehumidify the air
before it enters into the cabin.
If the windshield fogs up, select the Front
Defrost
mode.
Operation Tips
• To keep dust or unpleasant fumes
from entering the vehicle through the
ventilation system, temporarily set the
air intake control to the recirculation
mode. Return the control to the to
Fresh mode when the unpleasant air
outside has diminished. This will help
keep the driver alert and comfortable.
• To help prevent the inside of the
windshield from fogging, set the air
intake control to fresh mode and the
fan speed to the desired position, turn
on the air conditioning system, and
adjust the temperature control to the
desired temperature.
Air conditioning
Your Genesis Branded Vehicle vehicle
air conditioning system is filled with
R-1234yf refrigerant.
1. Start the vehicle.
2. Press the air conditioning button.
3. Set the mode to the Face Level mode.
4. Set the air intake control to
Recirculation mode temporarily to
allow the cabin to cool quickly. When
the desired temperature in the cabin
is reached, change the air intake
control back to Fresh mode.
5. Adjust the fan speed control and
temperature control to maintain
maximum comfort.
When maximum cooling is desired, set
the temperature control to the lowest
position, then set the fan speed control
to the highest setting.
NOTICE
When using the air conditioning system,
monitor the engine temperature gauge
closely while driving up hills or in heavy
traffic when outside temperatures are
high. Air conditioning system operation
when climbing a steep grade or in
high outside ambient temperatures
can cause engine overheating.
Continue to use the fan, but turn the air
conditioning system off if the engine
temperature gauge indicates engine
overheating.

Convenient Features
5-106
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
recirculation mode to fresh mode.
• 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 to the
position and fan speed control to the
lowest speed.
System Maintenance
Cabin air filter
OHI048581L
[A] : Outside air, [B] : Recirculated air
[C] : Climate control 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.
We recommend that the cabin air filter
be replaced by an authorized retailer of
Genesis Branded products 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,
we recommend that the system be
inspected at an authorized retailer of
Genesis Branded products.

Convenient Features
5-108
WINDSHIELD DEFROSTING AND DEFOGGING
WARNING
Windshield heating
Do not use the
position during cooling operation in extremely humid
weather. 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 could cause
an accident resulting in serious injury
or death. In this case, set the mode
selection button to the
position and fan speed control knob to a lower
speed.
• For maximum defrost performance,
set the temperature control to the
highest temperature setting and
the fan speed control to the highest
setting.
• If warm air to the floor is desired while
defrosting or defogging, set the mode
to the floor-defrost position.
• Before driving, clear all snow and ice
from the windshield, rear window,
side view mirrors, and all side
windows.
• Clear all snow and ice from the
hood and air inlet in the cowl grill
to improve heater and defroster
efficiency and to reduce the
probability of fogging up the inside of
the windshield.
NOTICE
If the engine temperature is still cold
after starting, then a brief engine warm
up period may be required for the
vented air flow to become warm or hot.
To Defog Inside Windshield
ORG3050117
1. Select the desired fan speed.
2. Select the desired temperature.
3. Press the defroster button ().
4. Fresh mode will be selected
automatically.
Check to make sure the air intake control
is in Fresh mode. If the air intake control
indicator light is illuminated, press the
button once to enable Fresh mode
(indicator light OFF).
If the
position is selected, the fan speed is automatically increased.

Driving Your Vehicle
6-46
Forced to Restart Engine
The engine is automatically restarted in
the following situations.
• The engine has stopped for about 5
minutes
• The air conditioning is ON with the
fan speed set to higher positon than
7 step
• The front defroster is ON
• The battery is weak
• The cooling and heating performance
of the climate control system is
unsatisfactory
• The vehicle is shifted to P (Park) when
Auto Hold is activated
• The door is opened or the seatbelt
is unfastened when Auto Hold is
activated
• The EPB switch is pressed when Auto
Hold is activated
The Auto Stop (
) indicator blinks in
green for 5 seconds on the instrument
cluster when the engine is restarted.
WARNING
When the engine is in Idle Stop mode,
the engine may restart without the
driver taking any action. Before leaving
the vehicle or working on the engine
compartment, turn off the engine by
pressing the ENGINE START/STOP
button to the OFF position.
ISG Malfunction
ISG system may not operate when there
is a malfunction with the ISG sensors or
ISG system.
The following will occur, when there is a
malfunction with the ISG system:
• The Auto Stop () indicator will blink
in yellow on the instrument cluster.
• The light on the ISG OFF button will
illuminate.
Contact an authorized retailer of Genesis
Branded products.
NOTICE
ORG3060023L[A] : Battery sensor
When a battery is disconnected then
reconnected or replaced, the ISG
system cannot operate until after 4
hours due to required battery sensor
calibration that has to occur.
After calibration, turn the engine on and
off 2 or 3 times.

Driving Your Vehicle
6-56
Chain Installation
When installing AutoSock® (fabric
snow chain), follow the manufacturer's
instructions and mount them as tightly
as possible. Drive slowly (less than 20
mph (30 km/h)) with AutoSock® installed.
If you hear the fabric snow chains
contacting the body or chassis, stop and
tighten them. If they still make contact,
slow down until the noise stops. Remove
the AutoSock® as soon as you begin
driving on cleared roads.
When mounting AutoSock®, park the
vehicle on level ground away from traffic.
Turn on the vehicle Hazard Warning
Flasher and place a triangular emergency
warning device behind the vehicle (if
available).
Always place the vehicle in P (Park),
apply the parking brake and turn off the
engine before installing tire chains.
NOTICE
When using AutoSock® (fabric snow
chain):
• Wrong size fabric snow chains or
improperly installed fabric snow
chains can damage your vehicle's
brake lines, suspension, body and
wheels.
• If you hear noise caused by fabric
snow chains contacting the body,
retighten the fabric snow chains to
prevent contact with the vehicle
body.
• To prevent body damage, retighten
the fabric snow chains after driving
0.3~0.6 miles (0.5~1.0 km).
Winter Precautions
Use high quality ethylene glycol coolant
Your vehicle is delivered with high
quality ethylene glycol coolant in the
cooling system. It is the only type of
coolant that should be used because it
helps prevent corrosion in the cooling
system, lubricates the water pump and
prevents freezing. Be sure to replace or
replenish your coolant in accordance
with the maintenance schedule in
chapter 9. Before winter, have your
coolant tested to assure that its freezing
point is sufficient for the temperatures
anticipated during the winter.
Check battery and cables
Winter temperatures affect battery
performance. Inspect the battery and
cables, as specified in chapter 9. The
battery charging level can be checked by
an authorized retailer of Genesis Branded
products or in a service station.
Change to “winter weight” oil if
necessary
In some regions during winter, it is
recommended to use the “winter
weight” oil with lower viscosity. In
addition, replace the engine oil and filter
if it is close to the next maintenance
interval. Fresh engine oil ensures
optimum engine operation during the
winter months. For further information,
refer to chapter 2. When you are not sure
about a type of winter weight oil, consult
an authorized retailer of Genesis Branded
products.

06
6-57
Check spark plugs and ignition system
Inspect the spark plugs, as specified in
chapter 8. If necessary, replace them.
Also check all ignition wirings and
components for any cracks, wear-out,
and damage.
To prevent locks from freezing
To prevent the locks from being frozen,
spray approved de-icing fluid or glycerin
into key holes. When a lock opening is
already covered with ice, spray approved
de-icing fluid over the ice to remove it.
When an internal part of a lock freezes,
try to thaw it with a heated key. Carefully
use the heated key to avoid an injury.
Use approved window washer anti-
freeze solution in system
To prevent the window washer from
being frozen, add authorized window
washer anti-freeze solution, as specified
on the window washer container.
Window washer anti-freeze solution is
available from an authorized retailer of
Genesis Branded products, and most
vehicle accessory outlets. Do not use
engine coolant or other types of anti-
freeze solution, to prevent any damage
to the vehicle paint.Do not let your parking brake freeze
Under some conditions your parking
brake can freeze in the engaged position.
This is most likely to happen when there
is an accumulation of snow or ice around
or near the rear brakes or if the brakes
are wet. When there is the risk that your
parking brake may freeze, temporarily
apply it with the gear in P (Park). Also,
block the rear wheels in advance, so the
vehicle may not roll. Then, release the
parking brake.
Do not let ice and snow accumulate
underneath
Under some conditions, snow and ice
can build up under the fenders and
interfere with the steering. When driving
in such conditions during the severe
winter, you should check underneath
the vehicle on a regular basis, to ensure
that the front wheels and the steering
components is unblocked.
Carry emergency equipment
In accordance with weather conditions,
you should carry appropriate emergency
equipment, while driving. Some of the
items you may want to carry include tire
chains, tow straps or chains, flashlight,
emergency flares, sand, shovel, jumper
cables, window scraper, gloves, ground
cloth, coveralls, blanket, etc.
Do not place objects or materials in the
engine compartment
Putting objects or materials in the engine
compartment may cause an engine
failure or combustion, because they may
block the engine cooling. Such damage
will not be covered by the manufacturer’s
warranty.