2021 GENESIS G90 engine

7. Maintenance
Fuses ............................................7-52
Instrument Panel Fuse
Replacement..................................7-53
Engine Compartment Panel Fuse
Replacement ................................7-54
Fuse/Relay Panel Description........7-56
Light Bulbs ..................................7-69
Headlamp, Parking Lamp,
Turn Signal Lamp, Daytime Running
Light and Side Marker
Replacement ..................................7-70
Side Repeater Lamp Replacement..7-70
Rear Combination Light Bulb
Replacement ..................................7-71
High Mounted Stop Light
Replacement ..................................7-71
License Plate Light Replacement ..7-72
Interior Light Bulb Replacement....7-72
Appearance Care ........................7-74
Exterior Care....................................7-74
Interior Care....................................7-80
Emission Control System............7-84
Crankcase Emission Control
System ..........................................7-84
Evaporative Emission Control System
Including Onboard Refueling Vapor
Recovery (ORVR) ..........................7-84
Exhaust Emission Control System ..7-85
California Perchlorate Notice ....7-87
7

7-3
07
1. Engine coolant reservoir
2. Radiator cap
3. Brake fluid reservoir
4. Air cleaner
5. Engine oil dipstick6. Engine oil filler cap
7. Windshield washer fluid reservoir
8. Fuse box
9. Jumper terminal
ENGINE COMPARTMENT
OHI078001
The actual engine compartment in the vehicle may differ from the illustration.
■3.3 T-GDI

7-4
Maintenance
1. Engine coolant reservoir
2. Radiator cap
3. Brake fluid reservoir
4. Air cleaner
5. Engine oil dipstick6. Engine oil filler cap
7. Windshield washer fluid reservoir
8. Fuse box
9. Jumper terminal
OHI078003
The actual engine compartment in the vehicle may differ from the illustration.
■5.0 GDI

7-6
Maintenance
The following lists are vehicle checks
and inspections that should be per-
formed by the owner or an author-
ized retailer of Genesis Branded
products at the frequencies indicated
to help ensure safe, dependable
operation of your vehicle.
Any adverse conditions should be
brought to the attention of your deal-
er as soon as possible.
These Owner Maintenance vehicle
checks are generally not covered by
warranties and you may be charged
for labor, parts and lubricants used.
OWNER MAINTENANCE
Performing maintenance work
on a vehicle can be dangerous.
If you lack sufficient knowledge
and experience or the proper
tools and equipment to do the
work, have it done by an author-
ized retailer of Genesis Branded
products.
ALWAYS follow these precau-
tions for performing mainte-
nance work:
• Park your vehicle on level
ground. Shift the gear to P
(Park), apply the parking
brake, and press the Engine
Start/Stop button to the OFF
position.
• Block the tires (front and
back) to prevent the vehicle
from moving.
Remove loose clothing or jew-
elry that can become entan-
gled in moving parts.
• If you must run the engine
during maintenance, do so
out doors or in an area with
plenty of ventilation.
• Keep flames, sparks, or smok-
ing materials away from the
battery and fuel-related parts.
WARNING
Touching metal parts
Do not touch metal parts
(including strut bars) while the
engine is operating or hot.
Doing so could result in serious
personal injury. Turn the engine
off and wait until the metal parts
cool down to perform mainte-
nance work on the vehicle.
WARNING

7-7
07
Owner Maintenance Schedule
When you stop for fuel:
• Check the engine oil level.
• Check the coolant level in the
engine coolant reservoir.
• Check the windshield washer fluid
level.
• Check the tire for low or under-
inflated tires.
While operating your vehicle:
• Note any changes in the sound of
the exhaust or any smell of exhaust
fumes in the vehicle.
• Check for vibrations in the steering
wheel. Notice if there is any
increased steering effort or loose-
ness in the steering wheel, or
change in its straight-ahead posi-
tion.
• Notice if your vehicle constantly
turns slightly or "pulls" to one side
when traveling on smooth, level
road.
• When stopping, listen and check
for unusual sounds, pulling to one
side, increased brake pedal travel
or "hard-to-push" brake pedal.
• If any slipping or changes in the
operation of your transmission
occurs, check the transmission
fluid level.
• Check the automatic transmission
P (Park) function.
• Check the parking brake.
• Check for fluid leaks under your
vehicle (water dripping from the air
conditioning system during or after
use is normal).
At least monthly:
• Check coolant level in the engine
coolant reservoir.
• Check the operation of all exterior
lights, including the brake lights,
turn signals and hazard warning
flashers.
• Check the inflation pressures of all
tires including the spare for tires
that are worn, show uneven wear,
or are damaged.
• Check for loose wheel lug nuts. Be careful when checking your
engine coolant level when the
engine is hot. This may result in
coolant being blown out of the
opening and cause serious
burns and other injuries.
WARNING

7-8
Maintenance
At least twice a year:
(i.e., every Spring and Autumn)
• Check radiator, heater and air con-
ditioning hoses for leaks or dam-
age.
• Check windshield washer spray
and wiper operation. Clean wiper
blades with a clean cloth damp-
ened with washer fluid.
• Check headlamp alignment.
• Check muffler, exhaust pipes,
shields and clamps.
• Check the seat belts for wear and
function.
At least once a year:
• Clean body and door drain holes.
• Lubricate door hinges and hood
hinges.
• Lubricate door and hood locks and
latches.
• Lubricate door rubber weather
strips.
• Lubricate door checker.
• Check the air conditioning system.
• Inspect and lubricate automatic
transmission linkage and controls.
• Clean the battery and terminals.
• Check the brake fluid level.Follow Normal Maintenance Schedule
if the vehicle is usually operated where
none of the following conditions apply.
If any of the following conditions apply,
you must follow the Maintenance
Under Severe Usage Conditions.
• Repeated driving short distance of
less than 5 miles (8 km) in normal
temperature or less than 10miles
(16 km) in freezing temperature
• Extensive engine idling or low
speed driving for long distances
• Driving on rough, dusty, muddy,
unpaved, graveled or salt-spread
roads
• Driving in areas using salt or other
corrosive materials or in very cold
weather
• Driving in heavy dust conditions
• Driving in heavy traffic area
• Driving on uphill, downhill, or
mountain road repeatedly
• Towing a trailer or using a camper,
or roof rack
• Driving as a patrol car, taxi, other
commercial use of vehicle towing
• Frequently driving in stop-and-go
condition
For additional information or assis-
tance see an authorized retailer of
Genesis Branded products.
SCHEDULED MAINTENANCE
SERVICE

7-9
07
Normal Maintenance Schedule (5.0 GDI)The following maintenance services must be performed to ensure good emission control and performance.
Keep receipts for all vehicle emission services to protect your warranty. Where both mileage and time are shown,
the frequency of service is determined by whichever occurs first.I : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.
*1: The drive belt should be replaced when cracks occur or tension is reduced.
*2: If TOP TIER Detergent Gasoline is not available, one bottle of additive is recommended. Additives are available from your
authorized retailer of Genesis Branded products along with information on how to use them. Do not mix other additives.
Number of months or driving distance, whichever comes first
180112.5180
At first, inspect at 60,000 miles (96,000 km) or 72 months,
after that, inspect every 15,000 miles (24,000 km) or 24 months
R
Add every 7,500 miles (12,000 km) or 12 months
I
Replace every 97,500 miles (156,000 km) Rotate every 7,500 miles (12,000 km)
R
168105168RIR
15697.5156RIR
14490144RRR
13282.5132RIR
12075120RIR
10867.5108RIR
966096RRR
8452.584RIR
724572RIR
6037.560RIR
483048RRR
3622.536RIR
241524RIR
127.512RIR
MonthsMiles×1,000Km×1,000
Drive belts *
1
Engine oil and engine oil filterFuel additives *
2
Air cleaner filterSpark plugsRotate tiresClimate control air filter
(for evaporator and blower unit)
MAINTENANCE
INTERVALS
MAINTENANCE
ITEM

7-10
Maintenance
Normal Maintenance Schedule (5.0 GDI) (CONT.)I : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.
Number of months or driving distance, whichever comes first
180112.5180I
At first, replace at 120,000 miles (192,000 km) or 10 years
after that, replace every 30,000 miles (48,000 km) or 24 months
IIIIIIIIIII
168105168IIIIIIIIIIII
15697.5156IIIIIIIIIIII
14490144IIIIIIIIIIII
13282.5132IIIIIIIIIIII
12075120IIIIIIIIIIII
10867.5108IIIIIIIIIIII
966096IIIIIIIIIIII
8452.584IIIIIIIIIIII
724572IIIIIIIIIIII
6037.560IIIIIIIIIIII
483048IIIIIIIIIIII
3622.536IIIIIIIIIIII
241524IIIIIIIIIIII
127.512IIIIIIIIIIII
MonthsMiles×1,000Km×1,000
Vacuum hoseEngine coolantBattery conditionBrake lines, hoses and connectionsFront brake disc/pads, calipersRear brake disc/padsSteering gear rack, linkage and boots /
lower arm ball joint, upper arm ball jointDriveshaft and bootsSuspension mounting boltsAir conditioner refrigerantAir conditioner compressorPropeller shaftExhaust pipe and muffler
MAINTENANCE
INTERVALS
MAINTENANCE
ITEM