2018 GENESIS G80 heater

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7
Maintenance
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The high-pressure cooling system
has a reservoir filled with year-round
antifreeze coolant. The reservoir is
filled at the factory.
Check the antifreeze protection and
coolant level at least once a year, at
the beginning of the winter season
and before traveling to a colder cli-
mate.Checking the engine coolant
level
Never remove the
radiator cap, drain
plug and heater hose
connector cap while
the engine and radia-
tor are hot. Hot coolant and
steam may blow out under pres-
sure, causing serious injury.
(Continued)
WARNING
(Continued)
Turn the engine off and wait
until the engine cools down.
Use extreme care when remov-
ing the radiator cap. Wrap a
thick towel around it, and turn it
counterclockwise slowly to the
first stop. Step back while the
pressure is released from the
cooling system. When you are
sure all the pressure has been
released, press down on the
cap, using a thick towel, and
continue turning counterclock-
wise to remove it.
ODH073005

7-28
Maintenance
The electric motor for the cooling fan
is controlled by engine coolant tem-
perature, refrigerant pressure and
vehicle speed. As the engine coolant
temperature decreases, the electric
motor will automatically shut off. This
is a normal condition. If your vehicle
is equipped with GDI, the electric
motor for the cooling fan may begin
to operate at any time and continue
to operate until you disconnect the
negative battery cable.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 F and the L marks on
the side of the coolant reservoir
when the engine is cool.
If the coolant level is low, add enough
distilled (deionized) water to bring
the level to the F mark, but do not
overfill. If frequent additions are
required, we recommend that you
see an authorized retailer of Genesis
Branded products for a cooling sys-
tem inspection.
Recommended engine coolant
When adding coolant, use only
deionized water, distilled water or
soft water for your vehicle and
never mix hard water in the coolant
filled at the factory.
An improper coolant mixture can
result in severe malfunction or
engine damage.
The engine in your vehicle has alu-
minum engine parts and must be
protected by an ethylene-glycol-
based coolant to prevent corrosion
and freezing.
Do not use alcohol or methanol
coolant or mix them with the spec-
ified coolant.
Do not use a solution that contains
more than 60% antifreeze or less
than 35% antifreeze, which would
reduce the effectiveness of the
solution. The electric motor for
the cooling fan may
continue to operate
or start up when the
engine is not running
and can cause serious injury.
Keep hands, clothing and tools
away from the rotating fan
blades of the cooling fan.WARNING
ODH073004

7-66
Maintenance
Fuse NameFuse ratingCircuit Protected
P/DOOR DRV15A Driver Door Latch
MODULE 910A BCM
INTERIOR LAMP10A Front Vanity Lamp LH/RH, Room Lamp, Room Lamp LH/RH, Overhead Console Lamp
B/ALARM HORN10A Burglar Alarm Horn
HEATED
STEERING15A BCM
POWER OUTLET 120A Front Power Outlet & Cigarette Lighter
MODULE 410A
Blind Spot Detection Radar LH/RH, Crash Pad Switch, ECS Unit, Front Parking Assist Sensor (Center)
LH/RH, Console Switch, Tire Pressure Monitoring Module, Console Switch LH/RH,
Steering Tilt & Telescopic Module, Rear Parking Asssist Sensor LH/RH,
Rear Parking Assist Sensor (Center) LH/RH, Electric Parking Brake Module, Lane Keeping Assist Module,
Front Parking Asssist Sensor LH/RH
POWER OUTLET 320A Metal Core Block (PCB #1 - Power Outlet Relay)
P/WDW LH30A Driver Power Window Module, Rear Power Window Module LH
MODULE 110A Electronic Parking Brake Switch, Hazard Switch, Rain Sensor, Data Link Connector,
Driver/Passenger Door Module, Rear Door Module LH/RH
MODULE 510A
Head Lamp LH/RH, A/V Navigation Head Unit, Module, A/C Control Module, Electro Chromic Mirror,
I-BOX, Driver/Passenger CCS Module, Driver/Passenger Seat Warmer Control Module, AMP,
Rear CCS Module LH/RH, Rear Seat Warmer Control Module LH/RH, Driver IMS Control Module,
Driver Power Seat Switch
P/DOOR PASS15A Passenger Door Latch
S/HEATER PASS20A Passenger CCS Module, Passenger Seat Warmer Control Module
MODULE 1010A Driver/Passenger Power side view Mirror

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7
Maintenance
Engine compartment fuse panel
Fuse NameFuse ratingCircuit Protected
ALT200AAlternator, Multifuse (BATT) - B+2/ B+5/ MDPS 1,
Fuse - P/SEAT DRV 2/ P/SEAT RR/ SEAT LUMBAR/ ESC 1/ ESC 2
B+160A IGPM (Fuse - BRAKE SWITCH, E-SHIFTER 1 Leak Current Autocut Device (Fuse - INTERIOR LAMP/
MULTI MEDIA 1/ MEMORY 3), IPS 1)
B+360A IGPM (Fuse - SMART KEY 1/ SMART KEY 2/ MODULE 1/ B/A HORN, IPS 2/IPS 3/IPS 5/IPS 7)
B+460A IGPM (Fuse - DOOR LAMP/ MODULE 9/ MODULE 10, IPS 4/ IPS6/ IPS)
B+660A Metal Core Block (PCB #1 Fuse - ECU 3/ IG2/ MODULE 1)
B+780A Metal Core Block (PCB #2 Fuse - HORN/ ACC/ EPB 1/ EPB 2/ B/UP LAMP)
B+260A IGPM (Fuse - P/HANDLE/ P/WDW LH/ P/SEAT DRV 1/ P/SEAT PASS 1/ S/HEATER PASS/ POWER
OUTLET 3/ SUNROOF/ P/DOOR DRV/ P/DOOR PASS)
B+580A Metal Core Block (PCB #1 Fuse - BLOWER/ DEICER/ H/LAMP WASHER/ H/LAMP HI SOL)
MDPS 1125A MDPS Unit
C/FAN80A Cooling Fan Controller
P/SEAT
RR30A Not Used
ESC 240A ESC Module, Multipurpose Check Connector
ESC 140A ESC Module, Multipurpose Check Connector
P/SEAT DRV 225A Driver IMS Control Module, Driver Power Seat Switch, Driver Power Seat Relay Box
VACUUM
PUMP40A Vacuum Pump Relay
WIPER 130A Wiper Motor

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Maintenance
Fuse NameFuse ratingCircuit Protected
S/HEATER
DRV25A Driver CCS Module, Driver Seat Warmer Control Module
4WD30A 4WD ECM
PRESAFETY
SEAT BELT 130A Pre-Active Seat Belt Module
PRESAFETY
SEAT BELT 230A Pre-Active Seat Belt Module
IG230A IG2 Relay
ECU 330A Engine Control Relay
MODULE 110A 4WD ECM, Smart Cruise Control Radar, Active Air Flap
WIPER 210A Metal Core Block (PCB #2 - Wiper Relay)
WASHER20A Washer Relay
SENSOR 210A G6DN : Oxygen Sensor #1/#2/#3/#4, Variable Intake Solenoid Valve #1/#2
G8BE : Oxygen Sensor #1/#2/#3/#4, Electronic Thermostat
G6DP : Oxygen Sensor #1/#2/#3/#4, RCV Control Solenoid Valve
SENSOR 110A Oil Control Valve #1/#2/#3/#4, Canister Close Valve, Purge Control Solenoid Valve
SENSOR 310A Electronic Thermostat, Rear Junction Block (Fuel Pump Relay)
SENSOR 410A G8BE : Camshaft Position Sensor #1/#2/#3/#4
IGN COIL15A G6DN : Ignition Coil #1/#2/#3/#4/#5/#6
G8BE : Ignition Coil #1/#2/#3/#4/#5/#6/#7/#8
G6DP : Ignition Coil #1/#2/#3/#4/#5/#6
ECU 420A ECM
H/LAMP
HI SOL10A H/LAMP HI SOL Relay

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7
Maintenance
Fuse NameFuse ratingCircuit Protected
P/TRUNK30A Power Trunk Lid Control Module
P/DOOR 15A Rear Door Latch RH RR RH
DOOR LOCK 215A Passenger Door Module
P/DOOR RR LH15A Rear Door Latch LH
AIR BAG15A Air Bag Relay
SPARE 110A Spare Fuse
P/SEAT PASS 225A Passenger Power Seat Relay Box
F/LID10A Fuel Lid Open Relay, Crash Pad Switch
ECS15A ECS Unit
DOOR LOCK 110A Driver Door Module
SPARE 615A Spare Fuse
TRUNK10A Trunk Lid Relay, Power Trunk Module Buzzer
S/HEATER
RR RH20A Rear Seat Warmer Control Module RH
FOG LAMP
RR10A Not Used
AMP25A AMP
S/HEATER
RR LH20A Rear Seat Warmer Control Module LH
P/WDW RH30A Passenger Power Window Module, Rear Power Window Module RH
F/PUMP20A Fuel Pump Relay
RR HTD40A Rear Defogger Relay
Trunk fuse panel

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7
Maintenance
Fuse NameFuse ratingCircuit Protected
B+9100A
Rear Junction Block (Fuse - RR HTD/ P/TRUNK/ ECS/ F/LID/
P/DOOR RR RH/ DR LOCK 2/ P/DOOR RR LH/ AMP/
P/SEAT PASS 2/ DR LOCK 1/ TRUNK/ S/HEATER RR RH/
S/HEATER RR LH/ P/WDW RH/ F/PUMP/ AIR BAG)
B+880AMetal Core Block (PCB #2 Fuse - TCU/ ECU 1/ START/ IG 1)
AMS10ABattery Sensor
Trunk fuse panel