2023 GENESIS G80 cooling

5-110
Convenience Features
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 solar roof 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] : Cabin air filter, [D] : Blower
[E] : Evaporator core, [F] : PTC & Inner condenser
The cabin air filter is installed behind the
front trunk. 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 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,
have the system inspected at an
authorized retailer of Genesis Branded
products.

5-111
05
Checking the amount of air
conditioner refrigerant and
compressor lubricant
When the amount of refrigerant is low,
the performance of the air conditioning
is reduced. Overfilling also reduces the
performance of the air conditixoning
system.
Therefore, if abnormal operation is
found, have the system inspected by an
authorized retailer of Genesis Branded
products.
NOTICE
It is important that the correct type and
amount of oil and refrigerant is used.
Otherwise, damage to the compressor
and abnormal system operation may
occur. To prevent damage, the air
conditioning system in your vehicle
should only be serviced by trained and
certified technicians.
NOTICE
The refrigerant system should only
be serviced by trained and certified
technicians to insure proper and safe
operation.
The refrigerant system should be
serviced in a well-ventilated place.
The air conditioning evaporator (cooling
coil) shall never be repaired or replaced
with one removed from a used or
salvaged vehicle and new replacement
MAC evaporators shall be certified
(and labeled) as meeting SAE Standard
J2842.
WARNING
Vehicles equipped with R-1234yf
refrigerant
Since the refrigerant is
mildly flammable and
operated at high pressure,
the air conditioning system
should only be serviced
by trained and certified
technicians. It is important
that the correct type and
amount of oil and refrigerant
are used.
All refrigerants should be reclaimed
with proper equipment.
Venting refrigerants directly to the
atmosphere is harmful to individuals
and environment. Failure to heed these
warnings can lead to serious injuries.

5-113
05
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 to the
position and fan
speed control 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,
outside rearview 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.
To Defog Inside Windshield
ORG3EV051124N
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, touch
the icon once to enable Fresh mode
(indicator light OFF).
If the
position is selected, the fan
speed is automatically increased.

9-8
Maintenance
Normal Maintenance Schedule The following maintenance services must be performed to ensure good vehicle performance.
Keep receipts for all vehicle services to protect your warranty. Where both mileage and time are shown, the frequency of
service is determined by whichever occurs first.
MAINTENANCE
INTERVALS
MAINTENANCE
ITEMMonths
4 8 12 16 20 24 28 32 36 40 44 48 52 56 60 64 68 72 76 80 84 88 92 96
Miles×1,000
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120
Km×1,000
8 16 24 32 40 48 56 64 75 80 88 96 104 112 120 128 136 144 152 160 168 176 184 192
Cooling system Inspect every 15,000 miles or 12 months
Rotate Tires
(Includes Tire Pressure and
Tread Wear Inspection)Rotate every 5,000 miles (8,000 km) or 12 months
Replace Climate Control Air
Filter (For Evaporator and
Blower Unit)RR
RRRRRR
Coolant *
1
StandardAt first, replace 120,000 miles (200,000 km) or 120 months.
After that, replace every 25,000 miles (40,000 km) or 24 month.
Low
ConductivityReplace every 35,000 miles (60,000 km) or 36 months *
2
12V auxiliary battery condition I I
IIIIII
Brake lines, hoses, and connections I I
IIIIII
I : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.*1 :
When replacing or adding coolant, visit an authorized retailer of Genesis Branded products.
*2 :
For your convenience, it can be replaced prior to it’s interval when you do maintenance of other items.

9-11
09
Cooling System
Check cooling system components, such
as radiator, coolant reservoir, hoses and
connections for leakage and damage.
Replace any damaged parts.
Coolant
The coolant should be changed at the
intervals specified in the maintenance
schedule.
Reduction Gear Fluid
The reduction gear fluid should be
inspected according to the intervals
specified in the maintenance schedule.
Brake Hoses and Lines
Visually check for proper installation,
chafing, cracks, deterioration and any
leakage. Replace any deteriorated or
damaged parts immediately.
Brake Fluid
Check the brake fluid level in the brake
fluid reservoir. The level should be
between the MIN and the MAX marks
on the side of the reservoir. Use only
hydraulic brake fluid conforming to DOT
4 specification.
Brake Discs, Pads, Calipers and
Rotors
Check the pads, the disc, and the rotor
for any excessive wear-out. Inspect
calipers for any fluid leakage.
Suspension Mounting Bolts
Check the suspension connections for
looseness or damage. Retighten to the
specified torque.
Steering Gear Box, Linkage &
Boots/Lower Arm Ball Joint
With the vehicle stopped and the vehicle
off, check for excessive free-play in the
steering wheel. Check the linkage for
bends or damage. Check the dust boots
and ball joints for deterioration, cracks,
or damage.
Replace any damaged parts.
Drive Shafts and Boots
Check the drive shafts, boots and clamps
for cracks, deterioration, or damage.
Replace any damaged parts and, if
necessary, repack the grease.
Air Conditioning Refrigerant
Check the air conditioning lines and
connections for leakage and damage.
EXPLANATION OF SCHEDULED MAINTENANCE ITEMS

9-12
Maintenance
„Standard coolant
ORG3EV091003
„Low conductivity coolant
ORG3EV091002
Check the condition and connections
of all cooling system hoses and
heater hoses. Replace any swollen or
deteriorated hoses.
The coolant level should be filled
between the MAX or F and the MIN
or L marks on the side of the coolant
reservoir when the parts in the motor
compartment is cool.
If the coolant is low, have the vehicle
inspected by an authorized retailer of
Genesis Branded products.
Use only designated coolant for electric
vehicles, adding other types of water or
antifreeze can damage the vehicle.
WARNING
Since specific coolant (Blue color, Low
conductivity) is applied for electric
vehicles, replenishment of other
antifreeze or water may cause problems
to the vehicle.
WARNING
The electric motor for the
cooling fan may continue to
operate or start up when the
vehicle is not running and can
cause serious injury.
Keep hands, clothing and tools
away from the rotating fan
blades of the cooling fan.
The electric motor for the cooling
fan is controlled by vehicle coolant
temperature, refrigerant pressure and
vehicle speed. As the vehicle coolant
temperature decreases, the electric
motor will automatically shut off. This is
a normal condition.
COOLANT

9-44
Maintenance
Motor compartment fuse panel
Type Fuse NameFuse Rating Circuit Protected
MINELDC225A ICCU (LDC)
B+5150AP/R Junction Block (Fuse(EWP 1, EWP 2, EOP
1, HEAD LAMP LH, HEAD LAMP RH, VCU 2)),
PCB Block (Fuse(IG1, IG2, IG3 1, ACC))
MDPS 1 125A MDPS Unit
MULTICOOLING FAN100A Cooling Fan Motor
REAR HEATED80A Rear Heated Relay
IEB 160A IEB Unit
IEB 260A IEB Unit
BLOWER50A Blower Relay
IEB 350A IEB Unit
E-SHIFTER40A E-Shifter Relay
VCU 130A VCU
WIPER30A Wiper Motor
SBHEAD LAMP LH30A Head Lamp LH
EOP 140A Electronic Traction Motor Oil Pump (Front)
HEAD LAMP RH30A Head Lamp RH
EOP 240A Electronic Traction Motor Oil Pump (Rear)
MICROOBC10A VCMS, ICCU
HORN15A PCB Block(Horn Relay)
INVERTER 110A Inverter (Front)
BMS15A BMU
HTD IND10A Front A/C Controller
EWP 220A Electronic Water Pump (BSA)
EWP 120A Electronic Water Pump (Radiator)
VCU 220A VCU

9-45
09
Motor compartment fuse panel
Fuse NameFuse Rating Circuit Protected
IG130A IG1 Relay
IG3 130A IG3 Relay
IG230A IG2 Relay
ACC30A ACC Relay
VCU 410A VCU
Module 110A Front Radar, Front Corner Radar LH/RH, Inverter (Front)
Sensor 510A VESS Unit
MDPS 210A MDPS Unit
IEB 410A IEB Unit
Active Hood10A Not Used
IG3 310AElectronic Traction Motor Oil Pump (Rear), Inverter (Rear),
SCU, ICU Junction Block (IPS Control Module), VCU, VCMS
IG3 610AICU Junction Block (ESU), Front A/C Controller, Rear A/C
Controller, Instrument Cluster, A/V & Navigation Head
Unit, Coolant Valve,
A/C Control Module, A/C PTC Heater, Incar Temperature
Sensor, Electronic A/C Compressor, Cooling Fan Motor,
Vehicle Charger Indicator
IG3 710A BMU, Electronic Traction Motor Oil Pump (Front), ICCU
EWP 315A Electronic Water Pump (PEM)
IG3 210A Inverter (Front)
IG3 410ACDM, VESS Unit, Electronic Water Pump (Radiator),
Electronic Water Pump (BSA), Coolant 3Way Valve (BSA)
Washer15A Washer Relay