2021 GENESIS G90 maintenance

7-64
Maintenance
Fuse name Fuse rating Circuit protected
MODULE210A4WD ECM, Active Air Flap, Smart Cruse Control Radar
MDPS210AMDPS Unit, Steering Angle Sensor
SENSOR510A[3.3 T-GDI] Engine Room Junction Block (Vacuum Pump-
Relay), Brake Vacuum Switch
HORN20AHorn Relay
ECU210AECM
TCU215ATCM, B/UP Lamp Relay, P/N Relay
B/UP
LAMP10AB/Up Lamp Relay
ACC40AACC Relay

7-66
Maintenance
Trunk fuse panel
Fuse name Fuse rating Circuit protected
REAR HEATED40A Rear Defogger Relay
POWER
TRUNK30A 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

7-68
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

7-70
Maintenance
Headlamp, Parking Lamp, Turn
Signal Lamp, Daytime Running
Light and Side Marker
Replacement
(1) Headlamp (Low)
(2) Headlamp (High/Low)
(3) Parking lamp
(4) Turn signal/Daytime running light/
Parking lamp
(5) Side marker
If the LED lamp does not operate,
have the system be checked by an
authorized retailer of Genesis
Branded products.
The LED lamps cannot be replaced
as a single unit because it is an inte-
grated unit. The LED lamps has to be
replaced with the unit.
A skilled technician should check or
repair the LED lamp, for it may dam-
age related parts of the vehicle.
Side Repeater Lamp
Replacement
If the side repeater lamp (LED) (1)
does not operate, have the system
be checked by an authorized retailer
of Genesis Branded products.
The LED lamps cannot be replaced
as a single unit because it is an inte-
grated unit. The LED lamps has to be
replaced with the unit.
A skilled technician should check or
repair the LED lamp, for it may dam-
age related parts of the vehicle.OHI079039N
OHI078040

7-72
Maintenance
License Plate Light
Replacement replacement
If the high mounted stop lamp (LED)
(1) does not operate, have the sys-
tem be checked by an authorized
retailer of Genesis Branded prod-
ucts.
The LED lamps cannot be replaced
as a single unit because it is an inte-
grated unit. The LED lamps has to be
replaced with the unit.
A skilled technician should check or
repair the LED lamp, for it may dam-
age related parts of the vehicle.
Interior Light Bulb
Replacement
OHI078044
■Front lamps
■Rear lamps
• Type B
• Type A
■Glove box lamp
OHI078066/OHI078068/OHI078069/OHI078046

7-74
Maintenance
Exterior Care
Exterior general caution
It is very important to follow the label
directions when using any chemical
cleaner or polish. Read all warning
and caution statements that appear
on the label.
High-pressure washing
• When using high-pressure wash-
ers, make sure to maintain suffi-
cient distance from the vehicle.
Insufficient clearance or excessive
pressure can lead to component
damage or water penetration.
• Do not spray the camera, sensors
or its surrounding area directly with
a high pressure washer. Shock
applied from high pressure water
may cause the device to not oper-
ate normally.
• Do not bring the nozzle tip close to
boots (rubber or plastic covers)or
connectors as they may be dam-
aged if they come into contact with
high pressure water.
• Do not use any high-pressure noz-
zles, which induce either one-direct
water stream or water swirling.
Finish maintenance
Washing
To help protect your vehicle’s finish
from rust and deterioration, wash it
thoroughly and frequently at least
once a month with lukewarm or cold
water.
If you use your vehicle for off-road
driving, you should wash it after each
off-road trip. Pay special attention to
the removal of any accumulation of
salt, dirt, mud, and other foreign
materials. Make sure the drain holes
in the lower edges of the doors and
rocker panels are kept clear and
clean.
Insects, tar, tree sap, bird droppings,
industrial pollution and similar
deposits can damage your vehicle’s
finish if not removed immediately.
Even prompt washing with plain
water may not completely remove all
these deposits. A mild soap, safe for
use on painted surfaces, should be
used.
After washing, rinse the vehicle thor-
oughly with lukewarm or cold water.
Do not allow soap to dry on the finish.
APPEARANCE CARE
After washing the vehicle, test
the brakes while driving slowly
to see if they have been affected
by water before getting on the
road. If braking performance is
impaired, dry the brakes by
applying them lightly while
maintaining a slow forward
speed.
WARNING

7-76
Maintenance
• Wiping dust or dirt off the body
with a dry cloth will scratch the
finish.
• Do not use steel wool, abrasive
cleaners, or strong detergents
containing highly alkaline or
caustic agents on chrome-plat-
ed or anodized aluminum parts.
This may result in damage to the
protective coating and cause
discoloration or paint deteriora-
tion.
Matte paint finish vehicle
(if equipped)
Do not use any polish protector
such as a detergent, an abrasive
and a polish. In case wax is
applied, remove the wax immedi-
ately using a silicon remover and
if any tar or tar contaminant is on
the surface use a tar remover to
clean. However, be careful not to
apply too much pressure on the
painted area.
Finish damage repair
Deep scratches or stone chips in the
painted surface must be repaired
promptly. Exposed metal will quickly
rust and may develop into a major
repair expense.
Matte paint finish vehicle
(if equipped)
In case of matte paint finish vehi-
cles, it is impossible to modify
only the damaged area and repair
of the whole part is necessary. If
the vehicle is damaged and paint-
ing is required, we recommend
that you have your vehicle main-
tained and repaired by an author-
ized retailer of Genesis Branded
products. Take extreme care, as it
is difficult to restore the quality
after the repair.
Bright-metal maintenance
• To remove road tar and insects,
use a tar remover, not a scraper or
other sharp object.
• To protect the surfaces of bright-
metal parts from corrosion, apply a
coating of wax or chrome preser-
vative and rub to a high luster.
• During winter weather or in coastal
areas, cover the bright metal parts
with a heavier coating of wax or
preservative. If necessary, coat the
parts with non-corrosive petroleum
jelly or other protective compound.
NOTICE
NOTICE
NOTICE

7-77
07
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