2021 GENESIS G80 engine coolant

04
4-31
ORG3040012L
Tire pressure
The tire pressure of each tire is displayed.
For more details, refer to “Tire Pressure
Monitoring System (TPMS)” section in
chapter 8.
OJX1049061L
Engine temperature (for 8-inch cluster)
Engine coolant temperature gauge
display shows the temperature of the
engine coolant when the engine is
running.
ÃFor 12.3-inch 3D instrument cluster,
you can check the engine temperature
in the bottom right side of the cluster. Select contents
You can select the items to be displayed
in Utility view.
OJX1049026L
1. Press and hold the OK switch on the
steering wheel.
ORG3040046N
2. Use the , (UP, DOWN) switch
to change items, and press the OK
switch to select or deselect the item.
3. After selecting the items to be
displayed in the Utility view, press the
(MODE) button to exit the ‘Select
Contents’ display.
WARNING
To avoid driver distractions, do not
adjust the setting while driving the
vehicle which may lead to an accident.

Driving Your Vehicle
6-50
Limitations of ECO mode
If the following conditions occur while
ECO mode is operating, the system
operation is limited even though there is
no change in the ECO indicator.
• When coolant temperature is low:
The system will be limited until engine
performance becomes normal.
• 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 according
to the shift location.
SPORT mode
SPORT mode provides sporty but firm riding.
In SPORT mode, the fuel
efficiency may decrease.
• When SPORT mode is selected, the
SPORT indicator will illuminate on the
instrument cluster.
• Whenever the engine is restarted,
the drive mode will revert back to
COMFORT mode. If SPORT mode is
desired, re-select SPORT mode.
• When SPORT mode is activated:
-The engine rpm will tend to remain
raised over a certain length of time
even after releasing the accelerator
-Upshifts are delayed when
accelerating
CUSTOM mode
In CUSTOM mode, the driver can select separate modes for
each items in the infotainment
system screen.
- Powertrain: ECO/Comfort/Sport/
Smart
-Steering wheel: Comfort/Sport
-Suspension (if equipped with ECS):
Comfort/Sport
-AWD system (if equipped with AWD
system): ECO/Comfort/Sport
For detailed information, refer to the
separately supplied manual.
• When CUSTOM mode is selected, the
CUSTOM indicator will illuminate on
the instrument cluster.
• Whenever the engine is restarted,
the drive mode will revert back to
COMFORT mode. If CUSTOM mode is
desired, re-select CUSTOM mode.

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
6-56
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
6-57
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.

08
8 -7
If your temperature gauge indicates
overheating, you experience a loss of
power, or hear loud pinging or knocking,
the engine may be overheating. If this
happens, you should:
1. Pull off the road and stop as soon as it
is safe to do so.
2. Shift the gear to P (Park) and set the
parking brake. If the air conditioning is
ON, turn it OFF.
3. If engine coolant is running out under
the vehicle or steam is coming out
from the hood, stop the engine. Do
not open the hood until the coolant
has stopped running or the steaming
has stopped. If there is no visible
loss of engine coolant and no steam,
leave the engine running and check
to be sure the engine cooling fan is
operating. If the fan is not running,
turn the engine off.
WARNING
While the engine is running, keep hands, clothing and tools
away from the moving parts
such as the cooling fan and
drive belt to prevent serious
injury.
4. Check for coolant leaking from the
radiator, hoses or under the vehicle. (If
the air conditioning had been in use, it
is normal for cold water to be draining
from it when you stop.)
5. If engine coolant is leaking out, stop
the engine immediately and call the
nearest authorized retailer of Genesis
Branded products for assistance.
WARNING
Never remove the radiator cap, coolant cap or the drain plug
while the engine and radiator
are hot.Hot coolant and steam may blow out
under pressure, causing serious injury.
Turn the engine off and wait until the
engine cools down. Use extreme care
when removing the radiant cap or
coolant cap. Wrap a thick towel around
it, and turn it counterclockwise slowly
to the first stop. Step back while the
pressure is released from the cooling
system. When you are sure all the
pressure has been released, press down
on the cap, using a thick towel, and
continue turning counterclockwise to
remove it.
6. If you cannot find the cause of the
overheating, wait until the engine
temperature has returned to normal.
Then, if coolant has been lost,
carefully add coolant to the reservoir
to bring the fluid level in the reservoir
up to the halfway mark.
7. Proceed with caution, keeping alert
for further signs of overheating. If
overheating happens again, call an
authorized retailer of Genesis Branded
products for assistance.
CAUTION
• Serious loss of coolant indicates a
leak in the cooling system and should
be checked as soon as possible by
an authorized retailer of Genesis
Branded products.
• When the engine overheats from
low engine coolant, suddenly
adding engine coolant may cause
cracks in the engine. To prevent
damage, add engine coolant slowly
in small quantities. It may require
several refilling cycles to properly
fill the engine cooling system. If
necessary, an authorized retailer of
Genesis Branded products should be
consulted to perform this task.
IF THE ENGINE OVERHEATS

Maintenance
9
9. Maintenance
Engine Compartment ........................................................................\
...............9-3
Maintenance Services
........................................................................\
..............9-5Owner’s Responsibility ........................................................................\
........................9-5
Owner Maintenance Precautions ........................................................................\
........9-5
Owner Maintenance ........................................................................\
.................9-6Owner Maintenance Schedule ........................................................................\
............9 -7
Scheduled Maintenance Services ...................................................................9-8Normal Maintenance Schedule ........................................................................\
..........9-9
Maintenance Under Severe Usage Conditions ........................................................9-12
Explanation of Scheduled Maintenance Items ..............................................9-14
Engine Oil
........................................................................\
.................................9-16Checking the Engine Oil Level ........................................................................\
...........9-16
Checking the Engine oil and Filter ........................................................................\
.....9-17
Engine Coolant/LIQUID-Cooled Intercooler Coolant ...................................9-18Checking the Coolant Level ........................................................................\
............... 9-18
Changing Coolant ........................................................................\
.............................9-20
Brake Fluid ........................................................................\
................................9-21Checking the Brake Fluid Level ........................................................................\
.........9-21
Washer Fluid ........................................................................\
............................9-22Checking the Washer Fluid Level ........................................................................\
......9-22
Air Cleaner ........................................................................\
...............................9-23Filter Replacement ........................................................................\
.............................9-23
Cabin Air Filter ........................................................................\
.........................9-24Filter Inspection ........................................................................\
.................................. 9-24
Filter Replacement ........................................................................\
.............................9-24
Wiper Blades ........................................................................\
...........................9-25Blade Inspection ........................................................................\
................................9-25
Blade Replacement ........................................................................\
............................9-25
Battery ........................................................................\
......................................9-27
Battery Usage Recommendations ........................................................................\
....9-28
Battery Recharging ........................................................................\
............................9-28
Reset Items ........................................................................\
.........................................9-29

9-3
09
„„2.5L T-GDI
The actual engine compartment in the vehicle may differ from the illustration.
ORG3090001
1. Windshield washer fluid reservoir
2. Negative (-) jumper terminal
3. Fuse box and positive (+) jumper
terminal
4. Radiator cap
5. Engine coolant reservoir
6. Air cleaner
7. Liquid-cooled intercooler coolant
reservoir
8. Brake fluid reservoir
9. Engine oil dipstick
10. Engine oil filler cap
ENGINE COMPARTMENT