spark plugs replace GENESIS G90 2017 Owner's Manual

5-108
Driving your vehicle
Check spark plugs and ignitionsystem
Inspect your spark plugs as
described in chapter 7 and replace
them if necessary. Also check all
ignition wiring and components to be
sure they are not cracked, worn or
damaged in any way.
Use approved window washeranti-freeze in system
To keep the water in the window
washer system from freezing, add an
approved window washer anti-freeze
solution in accordance with instruc-
tions on the container. Window wash-
er anti-freeze is available from an
authorized Dealer of Genesis Brand
Products and most auto parts out-
lets. Do not use engine coolant or
other types of anti-freeze as these
may damage the paint finish.
Do not let your parking brakefreeze
Under some conditions your parking
brake can freeze in the engaged
position. This is most likely to happen
when there is an accumulation of
snow or ice around or near the rear
brakes or if the brakes are wet. If
there is a risk the parking brake may
freeze, apply it only temporarily while
you put the gear selector lever in P
and block the rear wheels so the car
cannot roll. Then release the parking
brake.
Do not let ice and snow accu-mulate underneath
Under some conditions, snow and
ice can build up under the fenders
and interfere with the steering. When
driving in severe winter conditions
where this may happen, you should
periodically check underneath the
car to be sure the movement of the
front wheels and the steering compo-
nents is not obstructed.
Don't place foreign objects ormaterials in the engine com-partment
Placement of foreign object or mate-
rials which prevent cooling of the
engine, in the engine compartment,
may cause a failure or combustion.
The manufacturer is not responsible
for the damage caused by such
placement.
To keep locks from freezing
To keep the locks from freezing,
squirt an approved de-icer fluid or
glycerine into the key opening. If a
lock is covered with ice, squirt it with
an approved de-icing fluid to remove
the ice. If the lock is frozen internally,
you may be able to thaw it out by
using a heated key. Handle the heat-
ed key with care to avoid injury.

7-12
Maintenance
Normal Maintenance Schedule (CONT.)
45,000 miles (72,000 km) or 36 months
❑Rotate tires
❑ Inspect air cleaner filter
❑ Inspect vacuum hose
❑ Inspect air conditioning refrigerant
❑ Inspect brake hoses and lines
❑ Inspect drive shafts and boots
❑ Inspect exhaust pipe and muffler
❑ Inspect front brake disc/pads, calipers
❑ Inspect propeller shaft
❑ Inspect rear brake disc/pads
❑ Inspect steering gear box, linkage & boots/lower arm ball joint, upper arm ball joint
❑ Inspect suspension mounting bolts
❑ Replace climate control air filter (for evaporator and blower unit)
❑ Replace engine oil and filter (45,000 miles (72,000 km) or 72 months)\
❑ Replace spark plugs (3.3 T-GDI)
❑ Add fuel additives *
1(45,000 miles (72,000 km) or 72 months)
*1: If TOP TIER Detergent Gasoline is not available, one bottle of additive is recommended.
Additives are available from your authorized Dealer of Genesis Brand Products along with
information on how to use them. Do not mix other additives.
*
6: Engine oil (3.3 T-GDI) : Replace every 6,000 miles (10,000 km) or 6 months.
❈ Inspect : Inspect and if necessary, adjust, correct, clean or replace.
52,500 miles (84,000 km) or 42 months
❑Rotate tires
❑ Inspect air cleaner filter
❑ Inspect vacuum hose
❑ Replace engine oil and filter (5.0 GDI) *
6(52,500 miles (84,000 km) or 84 months)
❑ Add fuel additives *1(52,500 miles (84,000 km) or 84 months)

7-16
Maintenance
Normal Maintenance Schedule (CONT.)
90,000 miles (144,000 km) or 72 months
❑Rotate tires
❑ Inspect vacuum hose
❑ Inspect air conditioning refrigerant
❑ Inspect brake hoses and lines
❑ Inspect drive shafts and boots
❑ Inspect exhaust pipe and muffler
❑ Inspect front brake disc/pads, calipers
❑ Inspect propeller shaft
❑ Inspect rear brake disc/pads
❑ Inspect steering gear box, linkage & boots/lower arm ball joint, upper arm ball joint
❑ Inspect suspension mounting bolts
❑ Inspect brake fluid
❑ Inspect fuel filter *
2
❑Inspect fuel lines, fuel hoses and connections
❑ Inspect fuel tank air filter *2
❑Inspect parking brake
❑ Inspect vapor hose and fuel filler cap, fuel tank
❑ Inspect drive belts (First, 60,000 miles (96,000 km) or 72 months
after that, every 15,000 miles (24,000 km) or 24 months)*
4
❑ Replace climate control air filter (for evaporator and blower unit)
❑ Replace air cleaner filter
❑ Replace engine oil and filter (5.0 GDI) *
6
(90,000 miles (144,000 km) or 144 months)
❑ Replace spark plugs (3.3 T-GDI)
❑ Add fuel additives *
1(90,000 miles (144,000 km) or 144 months)
*1: If TOP TIER Detergent Gasoline is not available, one bottle of additive is recommended.
Additives are available from your authorized Dealer of Genesis Brand Products along with
information on how to use them. Do not mix other additives.
*
2: Fuel filter & Fuel tank air filter are considered to be maintenance free\
but periodic inspection is recommended for this maintenance schedule depends on fuel quality. If there are some
important safety matters like fuel flow restriction, surging, loss of power, hard starting prob-
lem etc, replace the fuel filter immediately regardless of maintenance schedule\
and consult
an authorized Dealer of Genesis Brand Products for details.
*
4: The drive belt should be replaced when cracks occur or tension is reduced excessively.
*6: Engine oil (3.3 T-GDI) : Replace every 6,000 miles (10,000 km) or 6 months.
❈ Inspect : Inspect and if necessary, adjust, correct, clean or replace.

7-17
07
Normal Maintenance Schedule (CONT.)
97,500 miles (156,000 km) or 78 months
❑Rotate tires
❑ Inspect air cleaner filter
❑ Inspect vacuum hose
❑ Replace engine oil and filter (5.0 GDI) *
6
(97,500 miles (156,000 km) or 156 months)
❑ Add fuel additives *1(97,500 miles (156,000 km) or 156 months)
105,000 miles (168,000 km) or 84 months
❑ Rotate tires
❑ Inspect air cleaner filter
❑ Inspect vacuum hose
❑ Inspect air conditioning refrigerant
❑ Inspect brake hoses and lines
❑ Inspect drive shafts and boots
❑ Inspect exhaust pipe and muffler
❑ Inspect front brake disc/pads, calipers
❑ Inspect propeller shaft
❑ Inspect rear brake disc/pads
❑ Inspect steering gear box, linkage & boots/lower arm ball joint, upper arm ball joint
❑ Inspect suspension mounting bolts
❑ Inspect drive belts (First, 60,000 miles (96,000 km) or 72 months
after that, every 15,000 miles (24,000 km) or 24 months) *
4
❑ Replace climate control air filter (for evaporator and blower unit)
❑ Replace spark plugs (5.0 GDI)
❑ Replace engine oil and filter (5.0 GDI) *
6
(105,000 miles (168,000 km) or 168 months)
❑ Add fuel additives *1(105,000 miles (168,000 km) or 168 months)
*1: If TOP TIER Detergent Gasoline is not available, one bottle of additive is recommended.
Additives are available from your authorized Dealer of Genesis Brand Products along with
information on how to use them. Do not mix other additives.
*
4: The drive belt should be replaced when cracks occur or tension is reduced excessively.
*6: Engine oil (3.3 T-GDI) : Replace every 6,000 miles (10,000 km) or 6 months.
❈ Inspect : Inspect and if necessary, adjust, correct, clean or replace.

7-20
Maintenance
Normal Maintenance Schedule (CONT.)
142,500 miles (228,000 km) or 114 months
❑Rotate tires
❑ Inspect air cleaner filter
❑ Inspect vacuum hose
❑ Replace engine oil and filter (5.0 GDI) *
6
(142,500 miles (228,000 km) or 228 months)
❑ Add fuel additives *1(142,500 miles (228,000 km) or 228 months)
135,000 miles (216,000 km) or 108 months
❑ Rotate tires
❑ Inspect air cleaner filter
❑ Inspect vacuum hose
❑ Inspect air conditioning refrigerant
❑ Inspect brake hoses and lines
❑ Inspect drive shafts and boots
❑ Inspect exhaust pipe and muffler
❑ Inspect front brake disc/pads, calipers
❑ Inspect propeller shaft
❑ Inspect rear brake disc/pads
❑ Inspect steering gear box, linkage & boots/lower arm ball joint, upper arm ball joint
❑ Inspect suspension mounting bolts
❑ Inspect drive belts (First, 60,000 miles (96,000 km) or 72 months
after that, every 15,000 miles (24,000 km) or 24 months)*
4
❑ Replace climate control air filter (for evaporator and blower unit)
❑ Replace engine oil and filter (5.0 GDI) *6
(135,000 miles (216,000 km) or 216 months)
❑ Replace spark plugs (3.3 T-GDI)
❑ Add fuel additives *
1(135,000 miles (216,000 km) or 216 months)
*1: If TOP TIER Detergent Gasoline is not available, one bottle of additive is recommended.
Additives are available from your authorized Dealer of Genesis Brand Products along with
information on how to use them. Do not mix other additives.
*
4: The drive belt should be replaced when cracks occur or tension is reduced excessively.
*6: Engine oil (3.3 T-GDI) : Replace every 6,000 miles (10,000 km) or 6 months.
❈ Inspect : Inspect and if necessary, adjust, correct, clean or replace.

7-23
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 neces\
sary
Maintenance Under Severe Usage Conditions
Maintenance itemMaintenanceoperationMaintenance IntervalsDriving con- dition
Engine oil and filter
(Lambda 3.3 T-GDI)REvery 3,000 miles
(5,000 km) or 6 months
A, B, C, D, E, F, G, H, I, J, K
Engine oil and filter
(Tau 5.0 GDI)REvery 3,750 miles
(6,000 km) or 6 months
Air cleaner filterIMore frequentlyC, E
Spark plugsRMore frequentlyA, B, H, I, K
Automatic transmission
fluidREvery 60,000 miles (96,000 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 bootsIEvery 7,500 miles
(12,000 km) or 6 monthsC, D, E, F, G, H, I, J
Front differential oil (AWD)/
Rear differential oilREvery 75,000 miles (120,000 km)C, G, H, I, J
Climate control air filter (for
evaporator and blower unit)RMore frequentlyC, E
Propeller shaftIEvery 7,500 miles
(12,000 km) or 6 monthsC, E

7-25
07
Engine Oil and Filter
The engine oil and filter should be
changed at the intervals specified in
the maintenance schedule. If the car
is being driven in severe conditions,
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 Dealer of
Genesis Brand Products.
Fuel Lines, Fuel Hoses and
Connections
Check the fuel lines, fuel hoses and
connections for leakage and dam-
age. Have an authorized Dealer of
Genesis Brand Products replace any
damaged or leaking parts immedi-
ately.
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 genuine Genesis Brand air cleaner
filter is recommended when the filter
is replaced.
Spark Plugs
Make sure to install new spark plugs
of the correct heat range.
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