spare wheel GENESIS G90 2018 User Guide

7-38
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

7-39
07
Check Tire Inflation Pressure
Check your tires, including the spare
tire, once a month or more.
How to check
Use a good quality tire pressure
gauge to check tire pressure. You
can not tell if your tires are properly
inflated simply by looking at them.
Radial tires may look properly inflat-
ed when they are under-inflated.
Remove the valve cap from the tire
valve stem. Press the tire gauge firm-
ly onto the valve to get a pressure
measurement. If the cold tire inflation
pressure matches the recommended
pressure on the tire and loading
information label, no further adjust-
ment is necessary. If the pressure is
low, add air until you reach the rec-
ommended pressure. Make sure to
put the valve caps back on the valve
stems. Without the valve cap, dirt or
moisture could get into the valve
core and cause air leakage. If a valve
cap is missing, install a new one as
soon as possible.
If you overfill the tire, release air by
pushing on the metal stem in the
center of the tire valve. Recheck the
tire pressure with the tire gauge. Be
sure to put the valve caps back on
the valve stems. Without the valve
cap, dirt or moisture could get into
the valve core and cause air leakage.
If a valve cap is missing, install a new
one as soon as possible.
Tire Rotation
To equalize tread wear, Genesis
Branded Vehicle recommends that
the tires be rotated every 7,500 miles
(12,000 km) or sooner if irregular
wear develops.
During rotation, check the tires for
correct balance.
When rotating tires, check for uneven
wear and damage. Abnormal wear is
usually caused by incorrect tire pres-
sure, improper wheel alignment, out-
of-balance wheels, severe braking or
severe cornering. Look for bumps or
bulges in the tread or side of tire.
Replace the tire if you find either of
these conditions. Replace the tire if
fabric or cord is visible. After rotation,
be sure to bring the front and rear tire
pressures to specification and check
lug nut tightness (proper torque is
79~94 lbf·ft [11~13 kgf·m]).

7-40
Maintenance
Disc brake pads should be inspected
for wear whenever tires are rotated.
Information
The front tire size is different from the
rear tire size. So when you rotate tires,
check the tire and wheel size.
Wheel Alignment and Tire
Balance
The wheels on your vehicle were
aligned and balanced carefully at the
factory to give you the longest tire life
and best overall performance.
In most cases, you will not need to
have your wheels aligned again.
However, if you notice unusual tire
wear or your vehicle pulling one way
or the other, the alignment may need
to be reset.
If you notice your vehicle vibrating
when driving on a smooth road, your
wheels may need to be rebalanced.
Improper wheel weights can dam-
age your vehicle’s aluminum
wheels. Use only approved wheel
weights.
NOTICE
i
ODH073803
■
19inch tire
Do not use the compact spare
tire for tire rotation.
Do not mix bias ply and radial ply tires under any circum-
stances. This may cause
unusual handling characteris-
tics that may cause loss of
vehicle control resulting in an
accident.
WARNING

7-42
Maintenance
Compact spare tire replacement
A compact spare tire has a shorter
tread life than a regular size tire.
Replace it when you can see the
tread wear indicator bars on the tire.
The replacement compact spare tire
should be the same size and design
tire as the one provided with your
new vehicle and should be mounted
on the same compact spare tire
wheel. The compact spare tire is not
designed to be mounted on a regular
size wheel, and the compact spare
tire wheel is not designed for mount-
ing a regular size tire.
Wheel Replacement
When replacing the metal wheels for
any reason, make sure the new
wheels are equivalent to the original
factory units in diameter, rim width
and offset.
Information
A wheel in the different size may
adversely affect the wheel bearing,
braking, stopping, handling, ground
clearance, body-to-tire clearance,
snow-chain clearance, speedometer,
odometer, headlamp angle and
bumper height.
i
The original tire should be
repaired or replaced as soon as
possible to avoid failure of the
spare and loss of vehicle con-
trol resulting in an accident. The
compact spare tire is for emer-
gency use only. Do not operate
your vehicle over 50 mph (80
km/h) when using the compact
spare tire.
WARNING

7-44
Maintenance
Wheel size designation
Wheels are also marked with impor-
tant information that you need if you
ever have to replace one. The follow-
ing explains what the letters and
numbers in the wheel size designa-
tion mean.
Example wheel size designation:
8.5J X 19
8.5 - Rim width in inches.
J - Rim contour designation.
19 - Rim diameter in inches.
Tire speed ratings
The chart below lists many of the dif-
ferent speed ratings currently being
used for passenger car tires. The
speed rating is part of the tire size
designation on the sidewall of the
tire. This symbol corresponds to that
tire’s designed maximum safe oper-
ating speed.
3. Checking tire life (TIN : TireIdentification Number)
Any tires that are over six years old,
based on the manufacturing date,
(including the spare tire) should be
replaced by new ones. You can find
the manufacturing date on the tire
sidewall (possibly on the inside of the
wheel), displaying the DOT Code.
The DOT Code is a series of num-
bers on a tire consisting of numbers
and English letters. The manufactur-
ing date is designated by the last four
digits (characters) of the DOT code.
DOT : XXXX XXXX OOOO
The front part of the DOT means a
plant code number, tire size and
tread pattern and the last four num-
bers indicate week and year manu-
factured.
For example:
DOT XXXX XXXX 2717 represents
that the tire was produced in the 27th
week of 2017.
Speed
Rating
Symbol Maximum Speed
S 112 mph (180 km/h) T 118 mph (190 km/h)
H 130 mph (210 km/h) V 149 mph (240 km/h)
W 168 mph (270 km/h)
Y186 mph (300 km/h)

8-4
Specifications & Consumer information
* Normal load : Up to 3 persons
Information
• It is permissible to add 3 psi to the standard tire pressure specification if cold-er temperatures are expected soon. Tires typically loose 1 psi (7 kPa) for every
12°F temperature drop. If extreme temperature variations are expected,
recheck your tire pressure as necessary to keep them properly inflated.
• An air pressure generally decreases, as you drive up to a high-altitude area above sea level. Thus, if you plan to drive a high-altitude area, check the tire
pressures in advance. If necessary, inflate them to a proper level. (Air inflation
per altitude: +2.4psi/1mile )
When replacing tires, use the same size originally supplied with the
vehicle. Using tires of a different size can damage the related parts or
not work properly.
NOTICE
i
T T I
IR
R E
ES
S
A
A N
N D
D
W
W H
HE
EE
EL
LS
S
Item Tire size Wheel
size Inflation pressure kPa (psi)
Wheel lug
nut torque kgf·m
(lbf·ft, N·m)
Normal load * Maximum load
Front Rear Front Rear
Full size tire 245/45
R19 8.5Jx19 240
(35) -240
(35) -
11~13
(79~94,
107~127)
275/40
R19 9.5Jx19 - 240
(35) -240
(35)
Compact
spare tireT155/70 R194.0Tx19420
(60)420
(60)420
(60)420
(60)

Shift lever auto door lock........................................................................\
.............3-13
Shift lock system ........................................................................\
..........................5-15
Side air bags ........................................................................\
.................................2-61
Side view mirror........................................................................\
...........................3-37
Side view mirror defroster ........................................................................\
.........3-121
Smart blind spot detection system .......................................................................5\
-57
Smart cruise control system ........................................................................\
.........5-80
Smart high beam ........................................................................\
........................3-103
Smart key........................................................................\
........................................3-4Battery replacement ........................................................................\
..............3-8
Mechanical key ........................................................................\
.....................3-6
Smooth cornering ........................................................................\
.......................5-103
Snow tires ........................................................................\
...................................5-105
Spare tire Compact spare tire replacement ..................................................................7-42
Special driving conditions Driving at night ........................................................................\
.................5-103
Driving in flooded areas........................................................................\
....5-104
Driving in the rain ........................................................................\
.............5-103
Hazardous driving conditions ...................................................................5-102\
Highway driving........................................................................\
................5-104
Rocking the vehicle ........................................................................\
...........5-102
Smooth cornering ........................................................................\
..............5-103
Speed sensing door lock........................................................................\
...............3-13
Speedometer ........................................................................\
.................................3-61
Starting difficulties, see engine will not start.........................................................6-4
Steering wheel ........................................................................\
..............................3-17 Heated steering wheel ........................................................................\
.........3-18
Horn........................................................................\
.....................................3-19
Motor-driven power steering (MDPS) ........................................................3-17
Power steering ........................................................................\
.....................3-17
Tilt steering / Telescope steering.................................................................3-18
Steering wheel audio control........................................................................\
..........4-3
Storage compartment........................................................................\
..................3-142 Cellular phone holder ........................................................................\
........3-144
Center console storage ........................................................................\
......3-142
Glove box ........................................................................\
..........................3-143
Rear console storage ........................................................................\
.........3-142
Sunglass holder ........................................................................\
.................3-143
Wireless cellular phone charging system ..................................................3-144
I-15
I

Sunglass holder ........................................................................\
..........................3-143
Sunroof ........................................................................\
.........................................3-44
Sunroof inside air recirculation ........................................................................\
..3-140
Sunvisor ........................................................................\
......................................3-147
Tachometer ........................................................................\
...................................3-61
Theft-alarm system........................................................................\
.......................3-14
Tilt steering / Telescope steering........................................................................\
..3-18
Tire chains ........................................................................\
..................................5-106
Tire pressure monitoring system (TPMS) ............................................................6-10Changing a Tire with TPMS .......................................................................6\
-14
Low tire pressure LCD display with position indicator .............................6-12
Low tire pressure telltale ........................................................................\
.....6-12
TPMS malfunction indicator.......................................................................6\
-13
Tire rotation ........................................................................\
..................................7-39
Tire specification and pressure label ......................................................................8-\
8
Tires and wheels ........................................................................\
...........................7-37 Checking tire inflation pressure ..................................................................7-39
Compact spare tire replacement ..................................................................7-42
Low aspect ratio tires ........................................................................\
..........7-51
Recommended cold tire inflation pressures ................................................7-38
Tire care........................................................................\
...............................7-37
Tire maintenance ........................................................................\
.................7-43
Tire replacement ........................................................................\
..................7-41
Tire rotation ........................................................................\
.........................7-39
Tire sidewall labeling ........................................................................\
..........7-43
Tire traction ........................................................................\
.........................7-43
Wheel alignment and tire balance ...............................................................7-40
Wheel replacement ........................................................................\
..............7-42
Tires and wheels specification ........................................................................\
.......8-4
Towing ........................................................................\
..........................................6-24
Transmission shift indicator ........................................................................\
.........3-64
Trip computer ........................................................................\
...............................3-95 Accumulated Info display ........................................................................\
...3-97
Digital speedometer ........................................................................\
............3-97
Driving Info display ........................................................................\
............3-96
Fuel economy ........................................................................\
......................3-95
I-16
Index
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