brake GENESIS G80 2021 Repair Manual

Driving Your Vehicle
6-44
In the Auto Stop mode, if the engine
hood is opened, ISG system will be
deactivated.
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When the system is deactivated, the ISG
off button indicator will illuminate and
a message ‘Auto Stop error. Shift to P or
N to start engine manually’ appears on
the cluster LCD display with a warning
sound.
If this occurs, depress the brake pedal
and restart the engine manually.
Auto start
When the engine stops automatically by
ISG, the engine will restart if one of the
following is done.
-Release the brake pedal.
-When Auto Hold is activated, take
your foot off the brake pedal and then
depress the accelerator pedal.
-While depressing the brake pedal,
shift the gear from N (Neutral) or D
(Drive) to R (Reverse) or P (Park).
-While depressing the brake pedal,
shift the gear from N (Neutral) to D
(Drive).
The Auto Stop (
) indicator goes off on
the instrument cluster, when the engine
is restarted.
LCD display messages
The messages are displayed on the
instrument cluster to help use ISG
system.
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Auto stop error. Shift to P or N to start
engine manually
When the system is deactivated, the ISG
off button indicator will illuminate and
a message will appear on the cluster
LCD display with a warning sound in the
following situations.
- When the engine hood is opened.
-When ISG system is not working
normally.
If this occurs, depress the brake pedal
and restart the engine manually. For your
safety, restart the vehicle in the P (Park)
position.

06
6-45
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Press brake pedal before driving on
When the gear is shifted from N(neutral)
or D(Drive) to R(Reverse) without the
brake pedal depressed, a message will
appear on the cluster LCD display. To
activate auto start, depress the brake
pedal.
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AUTO STOP elapsed time
AUTO STOP display shows the elapsed
time of engine stop by the Idle Stop and
Go system.
You may check AUTO STOP elapsed time
in the Utility view on the instrument
cluster.
Refer to “View Modes” section in
chapter 4.
ISG System Off
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Press the ISG OFF button to turn off ISG
system. The ISG OFF button indicator will
illuminate. To use the system, press the
ISG OFF button again.

06
6-47
When certain conditions are met, the
engine is automatically decoupled from
the transmission while gear remains in D
(Drive). When Coasting is operating, the
engine stays at idling speed to reduce
fuel consumption and increase coasting
distance.
Coasting Setting
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• The Coasting function must be turned
ON from the Settings menu in the
infotainment system screen. Select:
-Setup → Vehicle Settings → Drive
Mode → Coasting
For detailed information, refer to the
separately supplied manual.
• When Coasting is turned ON and
the conditions are met, the function
operates with a ‘Coasting’ message
illuminated on the instrument cluster.
Coasting Operating Conditions
The Coasting function will operate when
the accelerator pedal is depressed and
released under the following conditions.
• ECO is selected for driving mode
• ECO or Smart is selected for
Powertrain in the CUSTOM menu from
the infotainment system screen. If
Smart is selected, driver acceleration
should be mild
• The gear is in D (Drive)
• The Smart Cruise Control button is
OFF
• The accelerator or brake pedal is not
depressed
• The vehicle’s speed is within 30~100
mph (50~160 km/h) range
• The road gradient is within -5~+5%
range
Information
• If the front radar for smart cruise
control system cannot operate
normally, the inter-vehicle distance
and relative speed condition are
automatically ignored.
• The Coasting function works after the
engine is turned on, the transmission is
warmed up, and the engine sensor self-
diagnosis is completed.
• Depending on the driving situation,
Coasting operation may be temporarily
delayed even if the above conditions are
met.
COASTING (IF EQUIPPED)

Driving Your Vehicle
6-48
Coasting Release Conditions
The Coasting function will be
automatically released when the
following conditions are met.
• Comfort or Sport is selected for
driving mode
• The driver uses the paddle shifter
• Smart Cruise Control is activated (Set
speed appears on the cluster)
• The vehicle’s speed exceeds 30~100
mph (50~160 km/h) range
• The road gradient is under -5% or over
+5%
• If the distance between the vehicle
ahead is too close or the relative
speed changes momentarily in Smart
mode
• 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 condition. Change
the drive mode to Comfort or Sport or
deselect Coasting from the infotainment
system screen.
NOTICE
• If the accelerator pedal is pressed
quickly for accelerating with the
Coasting function in operation,
acceleration may occur after the
engagement of the clutch inside the
transmission. In turn, the driver may
continue to feel acceleration even
after the system is turned off.
• Driving with the Coasting function
off may be required in some cases
since the engine brake is not applied
while the Coasting function is
operating.
• Operating the infotainment system
screen to activate or deactivate
the Coasting function while driving
may be dangerous as the driver’s
attention is dispersed.

06
6-53
Driving in the Rain
Rain and wet roads can make driving
dangerous. Here are a few things to
consider when driving in the rain or on
slick pavement:
• Slow down and allow extra following
distance. A heavy rainfall makes
it harder to see and increases the
distance needed to stop your vehicle.
• Turn OFF your Cruise Control. (if
equipped)
• Replace your windshield wiper blades
when they show signs of streaking or
missing areas on the windshield.
• Be sure your tires have enough tread.
If your tires do not have enough depth
of tire tread, making a quick stop on
wet pavement can cause a skid and
possibly lead to an accident. See “Tire
Tread” section in chapter 9.
• Turn on your headlamps to make it
easier for others to see you.
• Driving too fast through large puddles
can affect your brakes. If you must go
through puddles, try to drive through
them slowly.
• If you believe your brakes may be wet,
apply them lightly while driving until
normal braking operation returns.
Hydroplaning
If the road is wet enough and you are
going fast enough, your vehicle may
have little or no contact with the road
surface and actually ride on the water.
The best advice is SLOW DOWN when
the road is wet.
The risk of hydroplaning increases as
the depth of tire tread decreases, refer
to “Tire Tread” section in chapter 9.
Driving in Flooded Areas
Avoid driving through flooded areas
unless you are sure the water is no
higher than the bottom of the wheel hub.
Drive through any water slowly. Allow
adequate stopping distance because
brake performance may be reduced.
After driving through water, dry the
brakes by gently applying them several
times while the vehicle is moving slowly.
Highway Driving
Tires
Adjust the tire inflation, as specified.
Under-inflation may overheat or damage
the tires.
Do not install worn-out or damaged tires,
which may reduce traction or fail the
braking operation.
Information
Never over-inflate your tires above the
maximum inflation pressure, as specified
on your tires.
Fuel, engine coolant and engine oil
Driving at higher speeds on the highway
consumes more fuel and is less efficient
than driving at a slower, more moderate
speed. Maintain a moderate speed in
order to conserve fuel when driving on
the highway.
Be sure to check both the engine coolant
level and the engine oil before driving.
Drive belt
A loose or damaged drive belt may
overheat the engine.

Driving Your Vehicle
6-54
The severe weather conditions of winter quickly wear out tires and cause other
problems. To minimize winter driving problems, you should take the following
suggestions:
Snow or Icy Conditions
You need to keep sufficient distance between your vehicle and the vehicle in front of
you.
Apply the brakes gently. Speeding, rapid acceleration, sudden brake applications, and
sharp turns are potentially very hazardous practices. During deceleration, use engine
braking to the fullest extent. Sudden brake applications on snowy or icy roads may
cause the vehicle to skid.
To drive your vehicle in deep snow, it may be necessary to use snow tires or to install
tire chains on your tires.
Always carry emergency equipment. Some of the items you may want to carry include
tire chains, tow straps or chains, a flashlight, emergency flares, sand, a shovel, jumper
cables, a window scraper, gloves, ground cloth, coveralls, a blanket, etc.
Snow tires
WARNING
Snow tires should be equivalent in size and type to the vehicle’s standard tires.
Otherwise, the safety and handling of your vehicle may be adversely affected.
We recommend that you use snow tires when road temperature is below 45°F (7°C).
Refer to the below chart, and mount the recommended snow tire for your vehicle.
Standard tireRecommended snow tire
Tire size Wheel size Tire sizeWheel size
245/50R18 8.0J X 18245/50R18
8.0J X 18
245/45R19 8.5J X 19
245/40R20 8.5J X 20
245/45R19 8.5J X 19245/45R19
8.5J X 19
245/40R20 8.5J X 20
275/40R19 9.5J X 19275/40R19
9.5J X 19
275/35R20 9.5J X 20
245/40R20 8.5J X 20245/40R20 8.5J X 20
275/35R20 9.5J X 20275/35R20 9.5J X 20
If you mount snow tires on your vehicle, make sure to use the same Inflation pressure
as the original tires. Mount snow tires on all four wheels to balance your vehicle’s
handling in all weather conditions. The traction provided by snow tires on dry roads
may not be as high as your vehicle’s original equipment tires. Check with the tire dealer
for maximum speed recommendations.
WINTER DRIVING

Driving Your Vehicle
6-56
Chain Installation
When installing AutoSock® (fabric
snow chain), follow the manufacturer's
instructions and mount them as tightly
as possible. Drive slowly (less than 20
mph (30 km/h)) with AutoSock® installed.
If you hear the fabric snow chains
contacting the body or chassis, stop and
tighten them. If they still make contact,
slow down until the noise stops. Remove
the AutoSock® as soon as you begin
driving on cleared roads.
When mounting AutoSock®, park the
vehicle on level ground away from traffic.
Turn on the vehicle Hazard Warning
Flasher and place a triangular emergency
warning device behind the vehicle (if
available).
Always place the vehicle in P (Park),
apply the parking brake and turn off the
engine before installing tire chains.
NOTICE
When using AutoSock® (fabric snow
chain):
• Wrong size fabric snow chains or
improperly installed fabric snow
chains can damage your vehicle's
brake lines, suspension, body and
wheels.
• If you hear noise caused by fabric
snow chains contacting the body,
retighten the fabric snow chains to
prevent contact with the vehicle
body.
• To prevent body damage, retighten
the fabric snow chains after driving
0.3~0.6 miles (0.5~1.0 km).
Winter Precautions
Use high quality ethylene glycol coolant
Your vehicle is delivered with high
quality ethylene glycol coolant in the
cooling system. It is the only type of
coolant that should be used because it
helps prevent corrosion in the cooling
system, lubricates the water pump and
prevents freezing. Be sure to replace or
replenish your coolant in accordance
with the maintenance schedule in
chapter 9. Before winter, have your
coolant tested to assure that its freezing
point is sufficient for the temperatures
anticipated during the winter.
Check battery and cables
Winter temperatures affect battery
performance. Inspect the battery and
cables, as specified in chapter 9. The
battery charging level can be checked by
an authorized retailer of Genesis Branded
products or in a service station.
Change to “winter weight” oil if
necessary
In some regions during winter, it is
recommended to use the “winter
weight” oil with lower viscosity. In
addition, replace the engine oil and filter
if it is close to the next maintenance
interval. Fresh engine oil ensures
optimum engine operation during the
winter months. For further information,
refer to chapter 2. When you are not sure
about a type of winter weight oil, consult
an authorized retailer of Genesis Branded
products.

06
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Check spark plugs and ignition system
Inspect the spark plugs, as specified in
chapter 8. If necessary, replace them.
Also check all ignition wirings and
components for any cracks, wear-out,
and damage.
To prevent locks from freezing
To prevent the locks from being frozen,
spray approved de-icing fluid or glycerin
into key holes. When a lock opening is
already covered with ice, spray approved
de-icing fluid over the ice to remove it.
When an internal part of a lock freezes,
try to thaw it with a heated key. Carefully
use the heated key to avoid an injury.
Use approved window washer anti-
freeze solution in system
To prevent the window washer from
being frozen, add authorized window
washer anti-freeze solution, as specified
on the window washer container.
Window washer anti-freeze solution is
available from an authorized retailer of
Genesis Branded products, and most
vehicle accessory outlets. Do not use
engine coolant or other types of anti-
freeze solution, to prevent any damage
to the vehicle paint.Do not let your parking brake freeze
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. When there is the risk that your
parking brake may freeze, temporarily
apply it with the gear in P (Park). Also,
block the rear wheels in advance, so the
vehicle may not roll. Then, release the
parking brake.
Do not let ice and snow accumulate
underneath
Under some conditions, snow and ice
can build up under the fenders and
interfere with the steering. When driving
in such conditions during the severe
winter, you should check underneath
the vehicle on a regular basis, to ensure
that the front wheels and the steering
components is unblocked.
Carry emergency equipment
In accordance with weather conditions,
you should carry appropriate emergency
equipment, while driving. Some of the
items you may want to carry include tire
chains, tow straps or chains, flashlight,
emergency flares, sand, shovel, jumper
cables, window scraper, gloves, ground
cloth, coveralls, blanket, etc.
Do not place objects or materials in the
engine compartment
Putting objects or materials in the engine
compartment may cause an engine
failure or combustion, because they may
block the engine cooling. Such damage
will not be covered by the manufacturer’s
warranty.

Driver Assistance system
7-8
System Operation
Basic function
System warning and control
The basic function for Forward Collision-
Avoidance Assist is to warn and control
the vehicle depending on the collision
level: ‘Collision Warning’, ‘Emergency
Braking’ and ‘Stopping vehicle and
ending brake control’.
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Collision Warning
• To warn the driver of a collision, the
‘Collision Warning’ warning message
will appear on the cluster, an audible
warning will sound and the steering
wheel will vibrate.
• If a vehicle is detected in front, the
system will operate when your vehicle
speed is between approximately
6~124 mph (10~200 km/h).
• If a pedestrian or cyclist is detected
in front, the system will operate
when your vehicle speed is between
approximately 6~53 mph (10~85
km/h).
• If ‘Active Assist’ is selected, braking
may be assisted.
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Emergency Braking
• To warn the driver that emergency
braking will be assisted, the
‘Emergency Braking’ warning
message will appear on the cluster,
an audible warning will sound and the
steering wheel will vibrate.
• If a vehicle is detected in front, the
system will operate when your vehicle
speed is between approximately
6~53 mph (10~85 km/h).
• If a vehicle is detected in front, the
system will operate when your vehicle
speed is between approximately
6~62 mph (10~100 km/h) (if equipped
with front corner radar).
• If a pedestrian or cyclist is detected
in front, the system will operate
when your vehicle speed is between
approximately 6~40 mph (10~65
km/h).
• In emergency braking situation,
braking is assisted with strong braking
power by the system to help prevent
collision with the vehicle, pedestrian
or cyclist ahead.

07
7-9
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Stopping vehicle and ending brake control
• When the vehicle is stopped due
to emergency braking, the ‘Drive
carefully’ warning message will
appear on the cluster.
For your safety, the driver should
depress the brake pedal immediately
and check the surroundings.
• Brake control will end after the vehicle
is stopped by emergency braking for
approximately 2 seconds.
Junction Turning function
(if equipped)
System warning and control
Junction Turning function will warn
and control the vehicle depending on
the collision level: ‘Collision Warning’,
‘Emergency Braking’ and ‘Stopping
vehicle and ending brake control’
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Collision Warning
• To warn the driver of a collision, the
‘Collision Warning’ warning message
will appear on the cluster, an audible
warning will sound and the steering
wheel will vibrate.
• The system will operate when
your vehicle speed is between
approximately 6~19 mph (10~30 km/h)
and the oncoming vehicle speed is
between approximately 19~44 mph
(30~70 km/h).
• If ‘Active Assist’ is selected, braking
may be assisted.