2018 GENESIS G90 cooling

7-20
Maintenance
Valve Clearance
(Lambda engine)
Inspect for excessive valve noise
and/or engine vibration and adjust if
necessary. Have an authorized retail-
er of Genesis Branded products per-
form the operation.
Cooling System
Check cooling system components,
such as radiator, coolant reservoir,
hoses and connections for leakage
and damage. Replace any damaged
parts.
Engine Coolant
The coolant should be changed at
the intervals specified in the mainte-
nance schedule.
Automatic Transmission Fluid
Automatic transmission fluid should
not be checked under normal usage
conditions. But in severe conditions,
the fluid should be changed at an
authorized retailer of Genesis
Branded products in accordance to
the scheduled maintenance at the
beginning of this chapter.
Information
Automatic transmission fluid color is
basically red.
As the vehicle is driven, the automatic
transmission fluid will begin to look
darker. This is a normal condition and
you should not judge the need to
replace the fluid based upon the
changed color.
The use of a non-specified fluid
could result in transmission mal-
function and failure.
Use only the specified automatic
transmission fluid (refer to
"Recommended Lubricants and
Capacities" in chapter 8).
NOTICE
i

7-24
Maintenance
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
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.
E E N
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GI
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C
C O
O O
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LA
A N
N T
T
OHI076010
■Lambda 3.3 T-GDI
OHI076012
■ Tau 5.0 GDI

7-25
07
Recommended engine coolant
When adding coolant, use onlydeionized 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
with phosphate 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.
For mixing percentage, refer to the
following table:
Information
If in doubt about the mix ratio, a 50%
water and 50% antifreeze mix is the
easiest to mix together as it will be the
same quantity of each. It is suitable to
use for most temperature ranges of
-31°F and higher.
i
Ambient
Temperature Mixture Percentage
(volume)
Antifreeze Water
5°F (-15°C) 35 65
-13°F (-25°C) 40 60
-31°F (-35°C) 50 50
-49°F (-45°C) 60 40
OHI076013
■ Lambda 3.3 T-GDI
OHI076015
■ Tau 5.0 GDI
Never remove the
radiator cap or the
drain plug while the
engine and radiator
are hot. Hot coolant
and steam may blow out under
pressure, causing serious injury.
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.
(Continued)
WARNING

7-26
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.
Changing Engine Coolant
Have coolant changed by an author-
ized retailer of Genesis Branded
products according to the
Maintenance Schedule at the begin-
ning of this chapter.
To prevent damage to engine
parts, put a thick towel around the
radiator cap before refilling the
coolant to prevent the coolant
from overflowing into engine
parts, such as the generator.
NOTICE
The electric motor for
the cooling fan may
continue to operate
or start up when the
engine is not running
and can cause seri-
ous injury. Keep
hands, clothing and tools away
from the rotating fan blades of
the cooling fan.
WARNINGDo not use engine coolant or
antifreeze in the washer fluid
reservoir.
Engine coolant can severely
obscure visibility when sprayed
on the windshield and may
cause loss of vehicle control
resulting in an accident.
Engine coolant may also cause
damage to paint and body trim.
WARNING
(Continued)
When you are sure all the pres-
sure has been released, press
down on the cap, using a thick
towel, and continue turning
counterclockwise to remove it.

7-59
07
Instrument panel fuse panel
Fuse name Fuse rating Circuit protected
MODULE5 10AStop Lamp Switch, Driver/Passenger Door Module
MODULE7 10A
Electro Chromic Mirror, A/V & Navigation Head Unit, AMP,
A/C Control Module, Front A/C Controller, Air Quality
Sensor, Rear Seat Warmer Control Module LH/RH Head
Lamp LH/RH Driver/Passenger CCS Module
Rear CCS Module LH/RH, Driver/Passenger IMS Control
Module, Rear IMS Control Module LH/RH, Rear Seat
Console Switch
IBU3 10AIBU Control Module
E-SHIFTER2 10AElectronic ATM Shift Lever
MEMORY1 10A
Security Indicator, A/C Control Module, Front A/C Controller,
Instrument Cluster, Driver/Passenger IMS Control Module,
Rear IMS Control Module LH/RH, Head-Up Display, Analog
Clock
Driver/Passenger Seat Control Switch, Power Trunk Module,
Rear Seat Control Switch LH/RHM Driver/Passenger Smart
Key, Outside Handle Rear Smart Key Outside Handle
LH/RH
RR LH2P/SEAT25ARear IMS Control Module LH
DRIVER
P/SEAT225ADriver IMS Control Module
P/WINDOW RH30APassenger Power Window Module
Rear Power Window Module RH
MODULE 610A
Crash Pad Switch, Blind Spot Detection Radar LH/RH ECS
Unit, Electric Parking Brake Module, Lane Keeping Assist
Module, Front Console Switch, Steering Tilt & Telescopic
Module
MODULE 10 10ACooling Fan Controller (BLDC), Rear Seat Console Switch,
Around View Unit, Parking Guide Unit
MODULE3 10AGATEWAY (B+ (MCU)), Data Link Connector, Hazard
Switch
SUNROOF 25ASunroof Motor
PASSENGER P/SEAT2 25APassenger IMS Control Module

7-63
07
Engine compartment fuse panel
Fuse name Fuse rating Circuit protected
ALT 200AAlternator, Multifuse (BATT) - F12/F13/F14/ F15, Fuse -
F24/F25/F28/F29/F30/F31/F33/F34/F35/ F36/ F37/F38/F39
B+1 60AIGPM (IPS1, Fuse - F36, Leak Current Autocut Device
(Fuse - F5/F18/F19/F26/F27/F42/F49/F51/ F52))
B+3 60AIGPM (IPS2/IPS3, Fuse - F13/F41)
B+5 60AIGPM (Fuse - F7/F8/F9/F14/F15/F16/F46)
B+460AIGPM (IPS4/IPS5/IPS6/IPS7, Fuse - F37/F38/F39)
B+6 60AMetal Core Block (PCB #1 Fuse - F40/F41/ F42)
B+780AMetal Core Block (PCB #2 Fuse - F65/F68/F69/ F70/F71)
B+2 60AIGPM (Fuse - F21/F22/F23/F29/F30)
C/FAN2 70ACooling Fan Relay
B+8 80AMetal Core Block (PCB #1 Fuse - F51/F53/ F55)
MDPS 125AMDPS Unit
POWER
OUTLET3 20A[5:5 Seat] Rear Power Outlet #1
[W/O 5:5 Seat] Front Power Outlet & Cigarette Lighter
POWER
OUTLET2 20A[5:5 Seat] Rear Power Outlet #2
[W/O 5:5 Seat] Front Power Outlet & Cigarette Lighter
VACUUM PUMP 40A[Lambda 3.3 T-GDI] RLY. 3 (Vacuum Pump Relay)
ESC1 40AESC Control Module, Multipurpose Check Connector
ESC2 40AESC Control Module, Multipurpose Check Connector
DEICER 20A Front Deicer Relay

7-65
07
Fuse name Fuse rating Circuit protected
SENSOR110A
[Lambda 3.3 T-GDI] Oil Controlvalve #1/#2/#3/#4(Intake/Exhaust), Purge Control
Solenoid Valve, Oil Pressure Solenoid
Valve, Canister Close Valve
[Tau 5.0 GDI] Oil Controlvalve #1/#2/#3/#4 (Intake/ Exhaust), Purge Control Solenoid Valve,
Canister Close Valve
SENSOR310A[Lambda 3.3 T-GDI] Electronic Thermostat, Rear Sub Junction Block (Fuel Pump Relay)
[Tau 5.0 GDI] Rear Sub Junction Block (Fuel Pump Relay)
SENSOR410A
[Lambda 3.3 T-GDI] E/R Junction Block (RLY. 1 - Cooling Fan Relay)
[Tau 5.0 GDI] E/R Junction Block (RLY. 1 - Cooling Fan Relay), Camshaft Position Sensor #1/#2/#3/#4
(Intake/ Exhaust)
IGN COIL15A[Lambda 3.3 T-GDI] Ignition Coil #1/#2/#3/#4/#5/#6
[Tau 5.0 GDI] Ignition Coil #1/#2/#3/#4/#5/#6/#7/#8
ECU420AECM
H/LAMPHI SOL10AHead Lamp (HI SOL) Relay
H/LAMP
WASHER25AHead Lamp Washer Relay
A/CON110AA/C Control Module
FRT
BLOWER40AFront Blower Relay
IGN140AIG1 Relay
START30AE/R Junction Block (RLY. 2 - Start Relay)
ECU115AECM
TCU120ATCM
ESC310AESC Control Module

Changing a Tire with TPMS ........................................................................\
........6-14
Checking tire inflation pressure ........................................................................\
...7-39
Child restraint system (CRS) ........................................................................\
.......2-45Booster seats........................................................................\
........................2-48
Children always in the rear ........................................................................\
.2-45
Forward-facing child restraint system ........................................................2-48
Installing a child restraint system (CRS) ....................................................2-48
Lower Anchors and tether for children .......................................................2-49
Rearward-facing child restraint system..................................\
.....................2-47
Securing a child restraint system seat with "Tether Anchor" system .........3-52
Securing a child restraint system with a lap/shoulder belt .........................3-53
Securing a child restraint with the the LATCH anchors system.................2-51
Selecting a child restraint system (CRS) ....................................................2-46
Child-protector rear door lock........................................................................\
......3-13
Clean air ........................................................................\
.....................................3-140
Climate control air filter........................................................................\
...............7-30
Clock ........................................................................\
..........................................3-149
Clothes hanger ........................................................................\
............................3-150
Combined instrument, see instrument cluster ......................................................3-60
Compact spare tire replacement ........................................................................\
...7-42
Consumer information........................................................................\
..................8-10
Coolant ........................................................................\
.........................................7-24
Cooling fluid, see engine coolant........................................................................\
.7-24
Crankcase emission control system .....................................................................7-8\
3
Cruise control system ........................................................................\
...................5-80
Cup holder ........................................................................\
..................................3-146
Curtain air bags ........................................................................\
............................2-62
Dashboard illumination, see instrument panel illumination ................................3-61
Dashboard, see instrument cluster .......................................................................3\
-60
Daytime running light (DRL) ........................................................................\
....3-107
Defogging (Windshield) ........................................................................\
.............3-137
Defroster ........................................................................\
.....................................3-121 Rear window defroster ........................................................................\
......3-121
Side view mirror defroster ........................................................................\
3-121
Defrosting (Windshield) ........................................................................\
.............3-137
Dimensions ........................................................................\
.....................................8-2
DIS navigation system ........................................................................\
...................4-4
Display illumination, see instrument panel illumination .....................................3-61
I-5
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