wheel GENESIS G90 2020 Service Manual

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Driving with wheel and tire sizes dif-
ferent than original-equipment may
cause the ESC system to malfunc-
tion. Before replacing tires, make
sure all four tires and wheels are the
same as the original size. Never
drive the vehicle with different sized
tires and wheels installed.
Hill-Start Assist Control (HAC)
The Hill-Start Assist Control (HAC)
helps prevent the vehicle from rolling
backwards when starting a vehicle
from a stop on a hill. The system
operates the brakes automatically for
approximately 2 seconds and releas-
es the brake after 2 seconds or when
the accelerator pedal is depressed.
The HAC does not operate when
the gear is shifted to P (Park) or
N (Neutral).
The HAC activates even though the ESC (Electronic Stability
Control) is off but does not acti-
vate when the ESC has malfunc-
tioned.
NOTICE
If the ESC indicator light ( ) or
MDPS warning light ( ) stays
on or blinks, your vehicle may
have a malfunction with the
VSM system. When the warning
light illuminates, have your vehi-
cle checked by an authorized
retailer of Genesis Branded
products as soon as possible.
WARNING
Always be ready to depress the
accelerator pedal when starting
off on a incline. The HAC acti-
vates only for approximately 2
seconds.
WARNING

Using All Wheel Drive (AWD)
The All Wheel Drive (AWD) system
delivers engine power to front and
rear wheels for maximum traction.
AWD is useful when extra traction is
required, such as when driving on,
muddy, wet, or snow-covered roads.
If the system determines there is a
need for four wheel drive, the
engine's driving power is distributed
to all four wheels automatically.
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If the AWD warning light ( )
stays on the instrument cluster,
your vehicle may have a mal-
function with the AWD system.
When the AWD warning light
( ) illuminates have your
vehicle checked by an author-
ized retailer of Genesis Branded
products as soon as possible.
WARNING
To reduce the risk of SERIOUS
INJURY or DEATH:
Do not drive in conditions that
exceed the vehicles intended
design such as challenging
off-road conditions.
Avoid high speeds when cor- nering or turning.
Do not make quick steering wheel movements, such as
sharp lane changes or fast,
sharp turns.
The risk of a rollover is great- ly increased if you lose con-
trol of your vehicle at highway
speeds.
Loss of control often occurs if two or more wheels drop off
the roadway and the driver
over steers to reenter the
roadway.
In the event your vehicle leaves the roadway, do not
steer sharply. Instead, slow
down before pulling back into
the travel lanes.
Always drive safely and use caution when driving an AWD
vehicle.
WARNING

Information
• Do not drive in water if the level ishigher than the bottom of the vehi-
cle.
• Check your brake condition once you are out of mud or water.
Depress the brake pedal several
times as you move slowly until you
feel normal braking return.
• Shorten your scheduled mainte- nance interval if you drive in off-
road conditions such as sand, mud
or water (see "Maintenance Under
Severe Usage Conditions" in chap-
ter 7).
• Make sure that an AWD vehicle is towed by flatbed tow truck.
For safe AWD operation
Before driving
Make sure all passengers arewearing seat belts.
Sit upright and adjust the steering wheel to a position comfortable for
you to drive.
Driving on snow-covered or icy
roads
Start off slowly by applying theaccelerator pedal gently.
Use of snow tires is recommended. For more information on Snow
Tires refer to "Winter Driving" in
this chapter.
Keep sufficient distance between your vehicle and the vehicle in front
of you.
When approaching a stop sign or stop light, release the accelerator
pedal to provide engine braking
during deceleration.
Avoid speeding, rapid acceleration, sudden brake applications, and
sharp turns to prevent skids.
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Driving your vehicle

Driving in sand or mud
Maintain slow and constant speed.
Keep sufficient distance betweenyour vehicle and the vehicle in front
of you.
Reduce vehicle speed and always check the road condition.
Avoid speeding, rapid acceleration, sudden brake applications, and
sharp turns to prevent getting
stuck.
When the vehicle is stuck in snow,
sand or mud, avoid running the
engine continuously at high rpm,
doing so may damage the tires,
transmission, differential or AWD
system.
Information
• When using Snow Tires, mount them on all four wheels.
• When using AutoSock
®(fabric snow
chain), install them on all four tires.
However, if you are in a situation to
use only two AutoSock
®, install
them on the rear tires. In this case,
drive a short distance to prevent
damage to the AWD system.
For more information on Snow Tires
and Tire Chains, refer to "Winter
Driving" in this chapter.
Driving up or down hills
Driving uphill - Before starting off, check if it ispossible to drive uphill.
- Drive as straight as possible.
Driving downhill - Do not change gear while drivingdownhill. Select gear before driv-
ing downhill.
- Drive slowly and select Manual Shift Mode to provide engine
braking while driving downhill.
- Drive straight as possible.
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NOTICE
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Exercise extreme caution driv-
ing up or down steep hills. The
vehicle may flip depending on
the grade, terrain and water/
mud conditions.
WARNING

Emergency Precautions
Tires
When replacing the tires, be sure to
equip all four tires with the same
size, type, tread, brand and load-car-
rying capacity.
In an emergency situation, a com-
pact spare tire may be used. But, do
not use the compact spare tire con-
tinuously. Repair or replace the origi-
nal tire as soon as possible to avoid
failure of the differential or AWD sys-
tem.
Tire size mismatch. Check all tire
sizes.
If your vehicle is equipped with differ-
ent tires (size, type, etc.) on the front
and rear, the message will appear. To
use the AWD system, equip the vehi-
cle with the same tires on the front
and rear.
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Driving your vehicleDo not use tire and wheel with
different size and type from the
one originally installed on your
vehicle. It can affect the safety
and performance of your vehi-
cle, which could lead to steering
failure or rollover causing seri-
ous injury.
WARNING
OHI058226L
Never start or run the engine
while an AWD vehicle is raised
on a jack. The vehicle can slip or
roll off of a jack causing serious
injury or death to you or those
nearby.
WARNING
OHI059029N

Towing
AWD vehicles must be towed with all
wheels off the ground, either on a
flatbed tow truck or using doilies.
For more details, refer to "Towing"
in chapter 6.
Vehicle inspection
If the vehicle needs to be operatedon a vehicle lift do not attempt to
stop any of the four wheels for turn-
ing. This could damage the sys-
tem.
Never engage the parking brake while running the engine on a car
lift. This may damage the AWD
system.
Dynamometer testing
An AWD vehicle must be tested on a
special four wheel chassis dynamome-
ter.
An AWD vehicle should not be tested
on a 2WD roll tester. If a 2WD roll
tester must be used, perform the fol-
lowing procedure:
1. Check the tire pressures recom- mended for your vehicle.
2. Place the rear wheels on the roll tester for a speedometer test as
shown in the illustration.
3. Release the parking brake.
4. Place the front wheels on the tem- porary free roller as shown in the
illustration.
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OHI058031Roll Tester (Speedometer)
Temporary Free Roller
Keep away from the front of the
vehicle while the vehicle is in
gear on the dynamometer. The
vehicle can jump forward and
cause serious injury or death.
WARNING

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Driving your vehicle
Electronic Control Suspension
(ECS)
The Electronic Control Suspension
(ECS) controls the vehicle suspen-
sion automatically to maximize driv-
ing comfort by taking into account
the driving conditions such as speed,
surface of the road, cornering, stop-
ping requirements and acceleration.
ECS (Electronic ControlSuspension) malfunction indi-cator
Check Electronic Suspension
If the ECS warning message comes
on, you may have a problem with the
ECS system. Have the system be
checked by an authorized retailer of
Genesis Branded products.
Dynamic Stability Damping
Control (DSDC)
The Dynamic Stability Damping
Control (DSDC) provides comfort rid-
ing and driving stability by meticu-
lously optimizing the suspension
power during sharp curving or abrupt
obstacle avoidance.
Operating conditions
The DSDC is activated, when driv-
ing speed exceeds 30 mph (50
km/h).
The DSDC does not operate, when the Electronic Stability Control
(ESC) is deactivated.
The Dynamic Stability Damping
Control (DSDC) does not operate,
when there is a malfunction with
the Electronic Stability Control
(ESC).
The Dynamic Stability Damping
Control (DSDC) operation is limit-
ed in following situations:
- There are wide variations in tire pressures.
- The vehicle is driven on a steep slope.
- The vehicle is driven on a rough, rugged surface.
NOTICE
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NEVER install any tires/wheels
in different sizes or of different
models on your vehicle. It may
cause a malfunction of the
Dynamic Stability Damping
Control (DSDC).
WARNING
OHI048132L

5-46
Driving your vehicle
ECO mode
When ECO mode isselected by pressing the
DRIVE MODE button, the
ECO indicator will illumi-
nate on the instrument
cluster.
If the vehicle is set to ECO mode, when the engine is turned OFF
and restarted the drive mode set-
ting will remain in ECO mode.
Information
Fuel efficiency depends on the driver's
driving habit and road condition.
When ECO mode is activated:
The acceleration response may beslightly reduced if the accelerator
pedal is depressed moderately.
The air conditioner performance may be limited.
The shift pattern of the automatic transmission may change.
The engine noise may be louder at some automatic transmission
shifts as down-shift requires press-
ing down more on the accelerator.
The above situations are normal
conditions when ECO mode is acti-
vated to help improve fuel efficiency.
Limitation of ECO mode operation:
If the following conditions occur while
ECO mode is operating, the system
operation is limited even though
there is no change in the ECO indi-
cator.
When the coolant temperature is low:
The system will be limited until
engine performance becomes nor-
mal.
When driving up a hill: The system will be limited to gain
power when driving uphill because
engine torque is restricted.
When driving the vehicle in manual shift mode using the paddle shifter.
The system will be limited accord-
ing to the shift location.
CUSTOM mode
When CUSTOM mode isselected by pressing the
DRIVE MODE button, the
CUSTOM mode indicator
will illuminate on the
instrument cluster.
In CUSTOM mode, the driver can select separate modes and combine
them in the AVN system screen.
- Engine/Transmission: ECO/COMFORT/SPORT/SMART
- Steering wheel: COMFORT/ SPORT
- Suspension: COMFORT/SPORT
- AWD system: ECO/COMFORT/ SPORT
For detailed information, scan the
QR code in a separately supplied
simple manual.
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When SMART is selected for CUS-
TOM mode
SMART mode automatically controls
the vehicle driving, such as gear
shifting patterns, engine torque, rid-
ing quality (if equipped with the elec-
tronic suspension system), and
power distribution (if equipped with
the All-Wheel Drive (AWD) system),
in accordance with the driver's driv-
ing habits.
Information
• When you mildly drive the vehicle
in SMART mode, the driving mode
changes to ECO mode to improve
fuel efficiency. However, the actual
fuel efficiency may differ in accor-
dance with your driving situations
(i.e. upward/downward slope, vehi-
cle deceleration/acceleration).
• When you dynamically drive the vehicle in SMART mode by abrupt-
ly decelerating or sharply turning
the driving mode changes to SPORT
mode. However, it may adversely
affect fuel economy.
Various driving situations, which you may encounter in SMART
mode
- The driving mode automaticallychanges to ECO mode after a
certain period of time, when you
gently depress the accelerator
pedal (Your driving is categorized
to be economic.).
- The driving mode automatically changes from SMART ECO
mode to SMART COMFORT
mode after a certain period of
time, when you sharply or repeti-
tively depress the accelerator
pedal. - The driving mode automatically
changes to SMART COMFORT
mode with the same driving pat-
terns, when the vehicle starts to
drive on an upward slope of a
certain angle. The driving mode
automatically returns to SMART
ECO mode, when the vehicle
enters a leveled road.
- The driving mode automatically changes to SMART SPORT,
when you abruptly accelerate the
vehicle or repetitively operate the
steering wheel (Your driving is
categorized to be sporty.). In this
mode, your vehicle drives in a
lower gear for abrupt accelerat-
ing/decelerating and increases
the engine brake performance.
- You may still sense the engine braking performance, even when
you release the accelerator pedal
in SMART SPORT mode. It is
because your vehicle remains in
lower gear over a certain period
of time for next acceleration.
Thus, it is a normal driving situa-
tion, not indicating any malfunc-
tion.
- The driving mode automatically changes to SMART SPORT
mode only in harsh driving situa-
tions. In most of the normal driv-
ing situations, the driving mode
sets to be either in SMART ECO
mode or in SMART COMFORT
mode.
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Coasting Release Conditions
The Coasting function will be auto-
matically released when the follow-
ing conditions are met.
The driving mode is COMFORT orSPORT mode.
SMART is selected for Engine/ Transmission in CUSTOM mode
from the AVN system screen and
driver acceleration is SMART
COMFORT or SMART SPORT
The Smart Cruise Control button is ON (the cruise indicator is ON)
The vehicle's speed exceeds 35–100 mph (55–160 km/h) range
The road gradient is under -5% or over +5%
In SMART mode, if the distance between the vehicle ahead is too
close of the relative speed
changes momentarily
If lane change is predicated in SMART mode (e.g. the turn signal
is turned ON or a LKA warning
appears due to steering wheel
control, etc.)
Information
It is recommended to turn off the
Coasting function if you are driving
under frequently stop-and-go condi-
tion. Change the Drive Mode to COM-
FORT or SPORT mode or deselect
Coasting from the AVN system screen.
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Driving your vehicle