width GENESIS G90 2021 Owner's Manual

5-75
05
Detecting Sensor
(Camera and Radar)
Front camera
The front camera function as a sen-
sor detecting the lane. If the sensor is
covered with snow, rain or foreign
substance, the system may tem-
porarily be canceled and not work
properly. Always keep the sensor
clean.
Refer to Lane Keeping Assist
System for cautions for the front
camera sensor.
Rear radar
The rear radars are located inside
the rear bumper for detecting the
side and rear areas. Always keep the
rear bumper clean for proper opera-
tion of the system.• The system may not work prop-
erly when the bumper has been
damaged, or if the rear bumper
has been replaced or repaired.
• The sensing range differs some-
what according to the width of
the road. When the road is nar-
row, the system may detect
other vehicles in the next lane.
• The system may turn off if inter-
fered by electromagnetic waves.
• Always keep the sensors clean.
• NEVER disassemble the sensor
component or apply any impact
on the sensor component.
• Be careful not to apply unneces-
sary force on the radar sensor or
sensor cover. If the sensor is
forcibly moved out of proper
alignment, the system may not
operate correctly. In this case, a
warning message may not be
displayed. Have the vehicle
inspected by an authorized
retailer of Genesis Branded
products.
• Do not apply foreign objects
such as a bumper sticker or a
bumper guard near the radar
sensor or apply paint to the sen-
sor area. Doing so may adverse-
ly affect the performance of the
sensor.
• NEVER install any accessories
or stickers on the front wind-
shield, or tint the front wind-
shield.
• Pay extreme caution to keep the
camera sensor dry.
• NEVER place any reflective
objects (i.e. white paper, mirror)
over the dashboard. Any light
reflection may prevent the sys-
tem from functioning properly.
NOTICE
OHI059074N
■Front camera
■Rear radar
OHI058067

5-136
• Vehicle speed is below 35 mph (56
km/h) and over 110 mph (177
km/h).
• The vehicle makes sharp lane
changes.
• The vehicle brakes suddenly.
• The lane is very wide or narrow.
• There are more than two lane
markers such as a construction
area.
• The vehicle is driven on a steep
incline.
• The steering wheel is turned sud-
denly.
• The system may not operate for 15
seconds after the engine is started
or the camera is initialized.Limitations of the System
The LKA system may operate pre-
maturely even if the vehicle does not
depart from the intended lane, OR,
the LKA system may not assist your
steering or warn you if the vehicle
leaves the intended lane under the
following circumstances:
When the lane and road condi-
tions are poor
• It is difficult to distinguish the lane
marking from the road surface or
the lane marking is faded or not
clearly marked.
• It is difficult to distinguish the color
of the lane marker from the road.
• There are markings on the road
surface that look like a lane marker
that is inadvertently being detected
by the camera.
• The lane marker is indistinct or
damaged.
• The lane marker is merged or
divided (e.g. tollgate).
• The lane number increases or
decreases or the lane marker are
crossing complicatedly.
• There are more than two lane
markers on the road in front of you.
• The lane marker is very thick or
thin.
• The lane (or road width) is very
wide or narrow.
• The lanes ahead are not visible
due to rain, snow, water on the
road, damaged or stained road
surface, or other factors.
• The shadow is on the lane marker
by a median strip, trees, guardrail,
noise barriers, etc. Driving your vehicle

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.
Tire Traction
Tire traction can be reduced if you
drive on worn tires, tires that are
improperly inflated or on slippery
road surfaces. Tires should be
replaced when tread wear indicators
appear. To reduce the possibility of
losing control, slow down whenever
there is rain, snow or ice on the road.
Tire Maintenance
In addition to proper inflation, correct
wheel alignment helps to decrease
tire wear. If you find a tire is worn
unevenly, have your dealer check the
wheel alignment.
When you have new tires installed,
make sure they are balanced. This
will increase vehicle ride comfort and
tire life. Additionally, a tire should
always be rebalanced if it is removed
from the wheel.
Tire Sidewall Labeling
This information identifies and
describes the fundamental charac-
teristics of the tire and also provides
the tire identification number (TIN)
for safety standard certification. The
TIN can be used to identify the tire in
case of a recall. 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

7-43
07
1. Manufacturer or brand name
Manufacturer or brand name is
shown.
2. Tire size designation
A tire’s sidewall is marked with a tire
size designation. You will need this
information when selecting replace-
ment tires for your car. The following
explains what the letters and num-
bers in the tire size designation
mean.
Example tire size designation:
(These numbers are provided as an
example only; your tire size designa-
tor could vary depending on your
vehicle.)
245/45 R19 98W
245 - Tire width in millimeters.
45 - Aspect ratio. The tire’s section
height as a percentage of its
width.
R - Tire construction code (Radial).
19 - Rim diameter in inches.
98 - Load Index, a numerical code
associated with the maximum
load the tire can carry.
W - Speed Rating Symbol. See the
speed rating chart in this section
for additional information.
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.
OHI078081
Speed
Rating
SymbolMaximum 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)

7-45
07
7. Uniform tire quality grading
Quality grades can be found where
applicable on the tire sidewall
between tread shoulder and maxi-
mum section width.
For example:
TREADWEAR 200
TRACTION AA
TEMPERATURE A
Tread wear
The tread wear grade is a compara-
tive rating based on the wear rate of
the tire when tested under controlled
conditions on a specified govern-
ment test course. For example, a tire
graded 150 would wear one-and-a-
half times (1½) as well on the gov-
ernment course as a tire graded 100.
The relative performance of tires
depends upon the actual conditions
of their use, however, and may
depart significantly from the norm
due to variations in driving habits,
service practices and differences in
road characteristics and climate.
These grades are molded on the
sidewalls of passenger vehicle tires.
The tires available as standard or
optional equipment on your vehicle
may vary with respect to grade.
Traction - AA, A, B & C
The traction grades, from highest to
lowest, are AA, A, B and C. Those
grades represent the tire's ability to
stop on wet pavement as measured
under controlled conditions on spec-
ified government test surfaces of
asphalt and concrete. A tire marked
C may have poor traction perform-
ance.
The traction grade assigned to
this tire is based on straight-
ahead braking traction tests,
and does not include accelera-
tion, cornering, hydroplaning,
or peak traction characteristics.
WARNING

7-46
Maintenance
Temperature - A, B & C
The temperature grades are A (the
highest), B and C representing the
tire’s resistance to the generation of
heat and its ability to dissipate heat
when tested under controlled condi-
tions on a specified indoor laboratory
test wheel.
Sustained high temperature can
cause the material of the tire to
degenerate and reduce tire life, and
excessive temperature can lead to
sudden tire failure. Grade C
responds to a level of performance
which all passenger car tires must
meet under the Federal Motor
Vehicle Safety Standard No. 109.
Grades B and A represent higher
levels of performance on the labora-
tory test wheel than the minimum
required by law.
Tire Terminology and
Definitions
Air Pressure
The amount of air inside the tire
pressing outward on the tire. Air
pressure is expressed in pounds per
square inch (psi) or kilopascal (kPa).
Accessory Weight
This means the combined weight of
optional accessories. Some exam-
ples of optional accessories are
automatic transmission, power
seats, and air conditioning.
Aspect Ratio
The relationship of a tire's height to
its width.
Belt
A rubber coated layer of cords that is
located between the plies and the
tread. Cords may be made from steel
or other reinforcing materials.
Bead
The tire bead contains steel wires
wrapped by steel cords that hold the
tire onto the rim.
Bias Ply Tire
A pneumatic tire in which the plies
are laid at alternate angles less than
90 degrees to the centerline of the
tread. The temperature grade for this
tire is established for a tire that
is properly inflated and not
overloaded. Excessive speed,
under-inflation, over-inflation,
or excessive loading, either
separately or in combination,
can cause heat build-up and
possible sudden tire failure.
This may cause loss of vehicle
control resulting in an accident.
WARNING

DIMENSIONS
8-2
Specifications, Consumer information and Reporting safety defects
Itemsin (mm)
Overall length204.9 (5,205)
Overall width75.4 (1,915)
Overall height58.9 (1,495)
Front tread245/45 R1964.6 (1,640)
Rear tread 275/40 R1964.5 (1,639)
Wheelbase124.4 (3,160)
Items 3.3 T-GDI5.0 GDI
Displacement
cu. in (cc)203.94 (3,342)307.43 (5,038)
Bore x Stroke
in. (mm)3.62x3.29 (92x84)3.77x3.42 (96x87)
Firing order1-2-3-4-5-61-2-7-8-4-5-6-3
No. of cylinders6, V-type8, V-type
ENGINE