2021 GENESIS G90 air filter

7-17
07
The following items must be serviced more frequently on cars normally used
under severe driving conditions. Refer to the chart below for the appropriate
maintenance intervals.
R : Replace
I : Inspect and, after inspection, clean, adjust, repair or replace if necessary
Maintenance Under Severe Usage Conditions (3.3 Turbo-GDI)
Maintenance itemMaintenance
operationMaintenance IntervalsDriving
condition
Engine oil and filterREvery 3,000 miles
(5,000 km) or 6 monthsA, B, C, D, E,
F, G, H, I, J, K
Air cleaner filterIMore frequentlyC, E
Spark plugs RMore frequentlyA, B, F, H, I, K
Automatic transmission
fluidREvery 60,000 miles
(100,000 km) A, C, D, E, F,
G, H, I
Front brake disc/
pads, calipersIMore frequentlyC, D, G, H
Rear brake disc/padsIMore frequentlyC, D, G, H
Parking brakeIMore frequentlyC, D, G, H
Steering gear box,
linkage & boots/
Lower arm ball joint,
upper arm ball joint
IMore frequentlyC, D, E, F, G,
H, I
Drive shafts and bootsIMore frequentlyC, D, E, F, G,
H, I, J
Front (AWD)/
Rear differential oilREvery 72,000 miles
(120,000 km)C, E, G, H, I, J
Climate control air filter
(for evaporator and
blower unit)
RMore frequentlyC, E, G
Propeller shaftIMore frequentlyC, D, E, F,
G, H, I, J

7-19
07
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.
EXPLANATION OF SCHEDULED MAINTENANCE ITEMS

7-29
07
Filter Replacement
Do not attempt to wash or to rinse it,
as water will damage the filter.
If soiled, the air cleaner filter must be
replaced.
Visit an authorized retailer of
Genesis Branded products to
replace the air cleaner filter.
Replace the filter according to the
Maintenance Schedule
Information
If the vehicle is operated in extremely
dusty or sandy areas, replace the air
cleaner filter more often than the
usual recommended intervals (refer to
"Maintenance Under Severe Usage
Conditions" in this chapter).• Do not drive with the air cleaner
filter removed. This will result in
excessive engine wear.
• When removing the air cleaner
filter, be careful that dust or dirt
does not enter the air intake, or
damage may result.
• Use Genuine Genesis Part, use
of non-Genuine Genesis Part
could damage the engine.
NOTICE
i
AIR CLEANER
OHI078018

7-30
Maintenance
Filter Inspection
The cabin air filter should be
replaced according to the
Maintenance Schedule. If the vehicle
is operated in severely air-polluted
cities or on dusty rough roads for a
long period, it should be inspected
more frequently and replaced soon-
er. Replace the cabin air filter by fol-
lowing the procedure below and be
careful to avoid damaging other com-
ponents.
1. With the glove box open, remove
the stoppers on both sides to
allow the glove box to hang freely
on the hinges.
2. Remove the support rod (1).3. Press and hold the lock on the left
side of the cover.
4. Pull out the cover.
5. Replace the cabin air filter.
6. Reassemble in the reverse order
of disassembly.
Install a new cabin air filter in the
correct direction with the arrow
symbol (
↓) facing downwards to
prevent noise and reduced effec-
tiveness.
NOTICE
CABIN AIR FILTER
OHI078051
OHI078052
OHI078050
OHI078055

7-84
Maintenance
The emission control system of your
vehicle is covered by a written limited
warranty. Please see the warranty
information contained in the Owner’s
Handbook & Warranty Information
booklet in your vehicle.
Your vehicle is equipped with an
emission control system to meet all
applicable emission regulations.
There are three emission control
systems, as follows.
(1) Crankcase emission control sys-
tem
(2) Evaporative emission control sys-
tem
(3) Exhaust emission control system
In order to ensure the proper function
of the emission control systems, it is
recommended that you have your
vehicle inspected and maintained by
an authorized retailer of Genesis
Branded products in accordance
with the maintenance schedule in
this manual.
For the Inspection and Maintenance
Test (
with Electronic Stability Control
system)
• To prevent the vehicle from mis-
firing during dynamometer test-
ing, turn the Electronic Stability
Control system off by pressing
the ESC switch (ESC OFF light
illuminated).
• After dynamometer testing is
completed, turn the ESC system
back on by pressing the ESC
switch again.
1. Crankcase Emission Control
System
The positive crankcase ventilation
system is employed to prevent air
pollution caused by blow-by gases
being emitted from the crankcase.
This system supplies fresh filtered air
to the crankcase through the air
intake hose. Inside the crankcase,
the fresh air mixes with blow-by
gases, which then pass through the
PCV valve into the induction system.
2. Evaporative Emission Control
System Including Onboard
Refueling Vapor Recovery
(ORVR)
The Evaporative Emission Control
System is designed to prevent fuel
vapors from escaping into the atmos-
phere. The ORVR system is
designed to allow the vapors from
the fuel tank to be loaded into a can-
ister while refueling at the gas sta-
tion, preventing the escape of fuel
vapors into the atmosphere.
Canister
Fuel vapors generated inside the fuel
tank are absorbed and stored in the
onboard canister. When the engine is
running, the fuel vapors absorbed in
the canister are drawn into the surge
tank through the purge control sole-
noid valve.
NOTICE
EMISSION CONTROL SYSTEM