fuel GENESIS G90 2020 Service Manual

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Engine Oil and Filter
The engine oil and filter should be
changed at the intervals specified in
the maintenance schedule. If the
vehicle is being driven in severe con-
ditions, more frequent oil and filter
changes are required.
Drive Belts
Inspect all drive belts for evidence of
cuts, cracks, excessive wear or oil
saturation and replace if necessary.
Drive belts should be checked peri-
odically for proper tension and
adjusted as necessary.
Fuel Filter
A clogged-up fuel filter may limit the
vehicle driving speed, damage the
emission system, and cause the
hard starting. When a considerable
amount of foreign substances are
accumulated in the fuel tank, the fuel
filter should be replaced.
Upon installing a new fuel filter, oper-
ate the engine for several minutes,
and check the connections for any
leakages. Fuel filters should be
installed by an authorized retailer of
Genesis Branded products.
Fuel Lines, Fuel Hoses and
Connections
Check the fuel lines, fuel hoses and
connections for leakage and dam-
age. Have an authorized retailer of
Genesis Branded products replace
any damaged or leaking parts imme-
diately.
Vapor Hose and Fuel Filler
Cap
The vapor hose and fuel filler cap
should be inspected at those inter-
vals specified in the maintenance
schedule. Make sure a new vapor
hose or fuel filler cap is correctly
replaced.
Air Cleaner Filter
A Genesis air cleaner filter is recom-
mended when the filter is replaced.
Spark Plugs
Make sure to install new spark plugs
of the correct heat range.
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Tire Care
For proper maintenance, safety, and
maximum fuel economy, you must
always maintain recommended tire
inflation pressures and stay within
the load limits and weight distribution
recommended for your vehicle.
All specifications (sizes and pres-
sures) can be found on a label
attached to the driver’s side center
pillar.
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Tire failure may cause loss of
vehicle control resulting in an
accident. To reduce risk of
SERIOUS INJURY or DEATH,
take the following precautions:
Inspect your tires monthly for
proper inflation as well as
wear and damage.
The recommended cold tire pressure for your vehicle can
be found in this manual and
on the tire label located on the
driver’s side center pillar.
Always use a tire pressure
gauge to measure tire pres-
sure. Tires with too much or
too little pressure wear
unevenly causing poor han-
dling.
Check the pressure of the spare every time you check
the pressure of the other tires
on your vehicle.
Replace tires that are worn, show uneven wear, or are
damaged. Worn tires can
cause loss of braking effec-
tiveness, steering) control, or
traction.
ALWAYS replace tires with the same size as each tire that
was originally supplied with
this vehicle. Using tires and
wheels other than the recom-
mended sizes could cause
unusual handling characteris-
tics, poor vehicle control, or
negatively affect your vehi-
cle's Anti-Lock Brake System
(ABS) resulting in a serious
accident.
WARNING
OHI088006L

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Maintenance
Recommended Cold Tire
Inflation Pressures
All tire pressures (including the
spare) should be checked when the
tires are cold. "Cold tires" means the
vehicle has not been driven for at
least three hours or driven less than
one mile (1.6 km).
Warm tires normally exceed recom-
mended cold tire pressures by 4 to 6
psi (28 to 41 kPa). Do not release air
from warm tires to adjust the pres-
sure or the tires will be under-inflat-
ed. For recommended inflation pres-
sure, refer to "Tire and Wheels" in
chapter 8. Under-inflation results in exces-
sive wear, poor handling and
reduced fuel economy. Wheel
deformation is also possible.
Keep your tire pressures at the
proper levels. If a tire frequently
needs refilling, have it checked by
an authorized retailer of Genesis
Branded products.
Over-inflation produces a harsh ride, excessive wear at the cen-
ter of the tire tread, and a greater
possibility of damage from road
hazards.
NOTICE
Recommended pressures must
be maintained for the best ride,
vehicle handling, and minimum
tire wear.
Over-inflation or under-inflation
can reduce tire life, adversely
affect vehicle handling, and
lead to sudden tire failure that
could result in loss of vehicle
control resulting in an accident.
Severe under-inflation can lead
to severe heat build-up, causing
blowouts, tread separation and
other tire failures that can result
in the loss of vehicle control
resulting in an accident. This
risk is much higher on hot days
and when driving for long peri-
ods at high speeds.
WARNING

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Cold Tire Pressure
The amount of air pressure in a tire,
measured in pounds per square inch
(psi) or kilopascals (kPa) before a tire
has built up heat from driving.
Curb Weight
This means the weight of a motor
vehicle with standard and optional
equipment including the maximum
capacity of fuel, oil and coolant, but
without passengers and cargo.
DOT Markings
A code molded into the sidewall of a
tire signifying that the tire is in com-
pliance with the U.S. Department of
Transportation motor vehicle safety
standards. The DOT code includes
the Tire Identification Number (TIN),
an alphanumeric designator which
can also identify the tire manufactur-
er, production plant, brand and date
of production.
GVWR
Gross Vehicle Weight Rating
GAWR FRT
Gross Axle Weight Rating for the
Front Axle.
GAWR RR
Gross Axle Weight Rating for the
Rear axle.
Intended Outboard Sidewall
The side of an asymmetrical tire, that
must always face outward when
mounted on a vehicle.
Kilopascal (kPa)
The metric unit for air pressure.
Light truck(LT) tire
A tire designated by its manufacturer
as primarily intended for use on light-
weight trucks or multipurpose pas-
senger vehicles.
Load ratings
The maximum load that a tire is rated
to carry for a given inflation pressure.
Load Index
An assigned number ranging from 1
to 279 that corresponds to the load
carrying capacity of a tire.
Maximum Inflation Pressure
The maximum air pressure to which
a cold tire may be inflated. The max-
imum air pressure is molded onto the
sidewall.
Maximum Load Rating
The load rating for a tire at the maxi-
mum permissible inflation pressure
for that tire.

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Engine compartment fuse panel
Fuse name Fuse rating Circuit protected
ALT 200A
Alternator, Multifuse (BATT) - B+7, COOLING FAN1, B+6,
B+5, B+4, B+3, B+1, (Fuse - WIPER1, FUEL PUMP,
POWER OUTLET1, 4WD, PRESAFETY SEAT BELT1, PRE-
SAFETY SEAT BELT2, P/DOOR DRV, P/DOOR PASS,
P/DOOR RR LH, P/DOOR RR RH, SEAT VENT DRV, SEAT
VENT PASS)
B+1 60AIGPM (Fuse - BRAKE SWITCH, MODULE14, MODULE15,
Leak Current Autocut Device) (Fuse - ROOM LAMP, MEMO-
RY1, MULTI MEDIA1, MULTI MEDIA2, MULTI MEDIA3)
B+3 60AIGPM (IPS2/IPS3, Fuse - MODULE3, E-SHIFTER1)
B+5 60AIGPM (Fuse - P/SEAT (RR LH) 2, P/SEAT (DRV) 2, P/WIN-
DOW (RH), SUNROOF, P/SEAT (PASS) 2, P/SEAT (RR LH) 1)
B+460AIGPM (IPS4/IPS8/IPS9/IPS10, Fuse - IBU1, IBU2, MOD-
ULE12)
B+6 60AMetal Core Block (PCB #1 Fuse - ECU3, IG2, MODULE1)
B+780AMetal Core Block (PCB #2 Fuse - ACC, B/UP LAMP, HORN)
B+2 60AIGPM (Fuse - P/SEAT (DRV) 1, P/SEAT (PASS) 1, P/WIN-
DOW LH, CURTAIN, POWER HANDLE)
B+8 80AMetal Core Block (PCB #1 Fuse - BLOWER FRT, POWER
OUTLET4, A/C2)
MDPS1125AMDPS Unit
POWER
OUTLET3 20AFront Power Outlet & Cigarette Lighter
POWER
OUTLET2 20AFront Power Outlet & Cigarette Lighter
VACUUM PUMP 40A[3.3 T-GDI] Vacuum Pump Relay
ESC1 40AESC Control Module, Multipurpose Check Connector
ESC2 40AESC Control Module, Multipurpose Check Connector
DEICER 20A Front Deicer Relay

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Maintenance
Fuse name Fuse rating Circuit protected
POWER
OUTLET140A Power Outlet Relay
FUEL PUMP20AFuel Pump Relay
WIPER1 30AWiper Motor
SEAT VENT DRV20A Driver CCS Module, Driver Seat Warmer Control Module
SEAT VENTPASS20A Passenger CCS Module, Passenger Seat Warmer Control
Module
4WD 30A 4WD ECM
PRESAFETYSEAT BELT1 30A Pre Active Seat Belt Unit
PRESAFETYSEAT BELT2 30APre Active Seat Belt Unit
P/DOOR DRV15ADriver Door Latch
P/DOOR PASS15APassenger Door Latch
P/DOOR RR LH15ARear Door Latch LH
P/DOOR RRRH15ARear Door Latch RH
IG230AIG2 Relay
ECU330AEngine Control Relay
MODULE110A4WD ECM, Active Air Flap, Smart Cruse Control Radar
WIPER210AWiper Relay
WASHER20AWasher Relay
SENSOR210A
[3.3 T-GDI] Oxygen Sensor #1/#2/#3/#4, RCV Control Solenoid Valve, Electronic Thermostat
[5.0 GDI] Oxygen Sensor #1/#2/#3/#4, Electronic Thermostat

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Fuse name Fuse rating Circuit protected
SENSOR110A
[3.3 T-GDI] Oil Controlvalve #1/#2/#3/#4 (Intake/Exhaust),
Purge Control Solenoid Valve, Oil Pressure
Solenoid Valve, Canister Close Valve
[5.0 GDI] Oil Controlvalve #1/#2/#3/#4 (Intake/ Exhaust), Purge Control Solenoid Valve, Canister Close
Valve
SENSOR310ARear Sub Junction Block (Fuel Pump Relay)
SENSOR410A[5.0 GDI] Camshaft Position Sensor #1/#2/#3/#4 (Intake/Exhaust)
IGN COIL15A[3.3 T-GDI] Ignition Coil #1/#2/#3/#4/#5/#6
[5.0 GDI] Ignition Coil #1/#2/#3/#4/#5/#6/#7/#8
ECU420AECM
ECU520AECM
A/C210AA/Con Comp Relay
POWER
OUTLET4 20APower Outlet #2 Relay
A/C110AA/C Control Module
BLOWER FRT40AFront Blower Relay
IG140AIG1 Relay
START30AEngine Room Junction Block (Start Relay)
ECU115AECM
TCU120ATCM
ESC310AESC Control Module

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Maintenance
Trunk fuse panel
Fuse name Fuse rating Circuit protected
REAR HEATED40A Rear Defogger Relay
POWERTRUNK30A Power Trunk Module
DOOR LOCK215A Passenger Door Module
RDM LH15A Rear Door Module LH
P/SEAT
(RR RH) 225A Rear IMS Control Module RH
AIR BAG15A Air Bag Relay
RDM RH15A Rear Door Module RH
S/HEATER (RR RH)20A Rear CCS Module RH,
Rear Seat Warmer Control Module RH
AMP25A AMP (Premium, Premium High)
P/SEAT
(RR RH) 130A Rear IMS Control Module RH,
Rear Electronic Power Seat Relay RH
P/SEAT
(RR RH) 315A Rear Seat Lumbar Support Module RH
P/SEAT
(RR LH) 315A Rear Seat Lumbar Support Module LH
ECS10A ECS Unit
FUEL LID10A Fuel Lid Open Relay, Fuel Filler Door & Trunk Lid Switch
DOOR LOCK110A Driver Door Module
TRUNK10A Trunk Lid Relay
S/HEATER (RR LH)20A Rear CCS Module LH,
Rear Seat Warmer Control Module LH
BLOWER RR20A Rear Blower Relay

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Maintenance
Trunk fuse panel
Fuse nameFuse rating Circuit protected
B+9100A
Rear Sub Junction Block (Fuse - REAR HEATED, POWER
TRUNK, DOOR LOCK2, RDM LH, P/SEAT (RR RH) 2, AIR
BAG, RDM RH, AMP, S/HEATER (RR RH), P/SEAT (RR
RH) 1, P/SEAT (RR RH) 3, P/SEAT (RR LH) 3, ECS, FUEL
LID, DOOR LOCK1, TRUNK, S/HEATER (RR LH), BLOW-
ER RR)
START80AMetal Core Block (PCB #2 Fuse - START, ECU1, TCU1,
IG1)
AMS10ABattery Sensor

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Underbody maintenance
Corrosive materials used for ice and
snow removal and dust control may
collect on the underbody. If these
materials are not removed, acceler-
ated rusting can occur on underbody
parts such as the fuel lines, frame,
floor pan and exhaust system, even
though they have been treated with
rust protection.
Thoroughly flush the vehicle under-
body and wheel openings with luke-
warm or cold water once a month,
after off-road driving and at the end
of each winter. Pay special attention
to these areas because it is difficult
to see all the mud and dirt. It will do
more harm than good to wet down
the road grime without removing it.
The lower edges of doors, rocker
panels, and frame members have
drain holes that should not be
allowed to clog with dirt; trapped
water in these areas can cause rust-
ing.
Aluminum wheel maintenance
The aluminum wheels are coated
with a clear protective finish.
Do not use abrasive cleaner, pol-
ishing compound, solvent, or wire
brushes on aluminum wheels.
Clean the wheel when it has cooled.
Use only a mild soap or neutral detergent, and rinse thoroughly
with water. Also, clean the wheels
after driving on salted roads.
Do not wash the wheels with high- speed car wash brushes.
Do not use cleaners containing acid or alkaline detergents.
After washing the vehicle, test
the brakes while driving slowly
to see if they have been affected
by water. If braking performance
is impaired, dry the brakes by
applying them lightly while
maintaining a slow forward
speed.
WARNING