engine coolant GENESIS G90 2023 Owners Manual

2-8
Vehicle Information, Consumer Information and Reporting Safety Defects
ENGINE COMPARTMENT
The actual engine compartment in the vehicle may differ from the illustration.
ORS092001N
1. Windshield washer fluid reservoir ....... 9-22
2. Jumper terminal ..................................... 8-5
3. Fuse box ................................................ 9-47
4. Engine coolant reservoir .......................9-18
5. Air cleaner ............................................. 9-23
6. Liquid-cooled intercooler coolant
reservoir .................................................9-187. Brake fluid reservoir .............................. 9-21
8. Engine oil dipstick ................................. 9-16
9. Engine oil filler cap ................................ 9-16
10. Cabin air filter ....................................... 9-24

2-13
02
To help achieve proper engine and powertrain performance and durability, use only
lubricants of the proper quality. The correct lubricants also help promote engine
efficiency that results in improved fuel economy.
These lubricants and fluids are recommended for use in your vehicle.
Lubricant Volume Classification
Engine oil *1
Recommends
86TW
bSAE 0W-30, API SN PLUS/SP or
ILSAC GF-6 *4
Automatic transmission fluid86TW
bGS ATF SP-IV-RR, Genesis/
HYUNDAI genuine ATF SP-IV-
RR or other brands meeting the
above specification approved by
Genesis Customer Care
Engine coolant3.5L T-GDI86TW
b
Mixture of antifreeze and water
(Phosphate-based Ethylene
glycol coolant for aluminum
radiator) 3.5L T-GDI 48 V
MHEV86TW
b
Liquid-cooled
intercooler
coolant3.5L T-GDI86TW
b
3.5L T-GDI 48 V
MHEV86TW
b
Brake fluid
*2As required DOT-4
Front differential oil (AWD)
*30.71±0.026 US qt.
s
bHYPOID GEAR OIL API GL-5 SAE
75W/85 (SK HK SYN GEAR OIL
75W85 FM PLUS or equivalent)
Rear differential oil *31.27±0.05 US qt.
s
bHYPOID GEAR OIL API GL-5 SAE
75W/85 (SK HK SYN GEAR OIL
75W85 FM PLUS or equivalent)
Transfer case
oil (AWD)Gear/Clutch0.44±0.22 US qt.
s
b
SHELL TF0870B
Actuator0.29±0.11 US qt.
s
b
Fuel86JDO
bRefer to “Fuel requirements”
section in chapter 1.
*1 : Refer to the recommended SAE viscosity numbers on the next page.
*2 : To maintain the best braking performance and ABS/ESC performance, we recommend
that you use fluid that conform to specifications.
*3 : If the front/rear differential is submerged, visit an authorized retailer of Genesis Branded
products to replace the differential oil.
*4 : Requires <API SN PLUS (or above) Full synthetic> grade engine oil. If a lower grade
engine oil (mineral oil including Semi-synthetic) is used, then the engine oil and engine
oil filter must be replaced as indicated severe maintenance condition.
RECOMMENDED LUBRICANTS AND CAPACITIES

4
Instrument Cluster ............................................................................................ 4-4Instrument Cluster Control ..........................................................................................4-5
Instrument panel illumination ...................................................................................4-5
Gauges and Meters ......................................................................................................4-5
Speedometer .............................................................................................................4-5
Tachometer ............................................................................................................... 4-6
Engine coolant temperature gauge ......................................................................... 4-6
Fuel gauge .................................................................................................................. 4-7
Outside temperature gauge ..................................................................................... 4-8
Odometer .................................................................................................................. 4-8
Distance to empty .................................................................................................... 4-9
Fuel economy ........................................................................................................... 4-9
Transmission Shift Indicator ...................................................................................... 4-10
Automatic transmission shift indicator .................................................................. 4-10
Warning and Indicator Lights .................................................................................... 4-10
Seat belt warning light ............................................................................................ 4-10
Air bag warning light ............................................................................................... 4-10
Parking brake & Brake fluid warning light ............................................................... 4-11
Anti-lock Brake System (ABS) warning light .......................................................... 4-12
Electronic Brake Force Distribution (EBD) system warning light ......................... 4-12
Electric Power Steering (EPS) warning light .......................................................... 4-13
Charging system warning light ............................................................................... 4-13
Engine oil pressure warning light ........................................................................... 4-13
Low fuel level warning light .................................................................................... 4-14
Malfunction Indicator Lamp (MIL) .......................................................................... 4-14
Master warning light ................................................................................................ 4-15
Electronic Parking Brake (EPB) warning light ........................................................ 4-15
Low tire pressure warning light .............................................................................. 4-16
Forward Safety warning light .................................................................................. 4-16
Lane Safety indicator light ...................................................................................... 4-16
All Wheel Drive (AWD) warning light .......................................................................4-17
LED headlight warning light .....................................................................................4-17
Icy road warning light ...............................................................................................4-17
Electronic Stability Control (ESC) indicator light ................................................... 4-18
Electronic Stability Control (ESC) OFF indicator light ........................................... 4-18
Immobilizer indicator light ...................................................................................... 4-18
AUTO STOP indicator light ...................................................................................... 4-19
Turn signal indicator light ........................................................................................ 4-19
4. Instrument Cluster, Armrest
touchscreen, Infotainment
system
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4-4
Instrument Cluster, Armrest touchscreen, Infotainment system
Information
Press the mode button () on the steering wheel to select between instrument cluster
type A or type B.
The actual cluster in the vehicle may differ from the illustration.
For more information, refer to “Gauges and meters” section in this chapter.
ORS042002N/ORS042001NORS042002N/ORS042001N
1. Speedometer
2. Tachometer
3. Fuel gauge
4. Engine coolant temperature gauge5. Warning and indicator lights
6. LCD display
7. Widget
INSTRUMENT CLUSTER
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4-6
Instrument Cluster, Armrest touchscreen, Infotainment system
Tachometer
ORS041006ORS041006
ORS042007NORS042007N
The tachometer indicates the
approximate number of engine
revolutions per minute (RPM).
Use the tachometer to select the correct
shift points and to prevent lugging and/
or over-revving the engine.
NOTICE
Do not operate the engine within the
tachometer's RED ZONE. This may
cause severe engine damage.
Engine coolant temperature gauge
ORS042008NORS042008N
ORS042009NORS042009N
This gauge indicates the temperature
of the engine coolant when the Engine
Start/Stop button is in the ON position.
NOTICE
If the gauge pointer moves beyond the
normal range area toward the “H (Hot)”
position, it indicates overheating that
may damage the engine.
Do not continue driving with an
overheated engine. If your vehicle
overheats, refer to “If the Engine
Overheats” section in chapter 8.
WARNING
Never remove the engine coolant
reservoir cap when the engine is hot.
The engine coolant is under pressure
and could cause severe burn. Wait until
the engine is cool before adding coolant
to the reservoir.
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4-25
04
Low washer fluid
This message is displayed if the washer
fluid level in the reservoir is nearly empty.
Have the washer fluid reservoir refilled.
Low fuel
This message is displayed if the fuel tank
is almost out of fuel.
When this message is displayed, the low
fuel level warning light in the cluster will
come on.
It is recommended to look for the nearest
fueling station and refuel as soon as
possible.
Low engine oil (if equipped)
This warning message is displayed when
the engine oil level should be checked.
If this warning message is displayed,
check the engine oil level as soon as
possible and add engine oil as required.
Slowly pour the recommended oil little
by little into a funnel.
Use only the specified engine oil. (Refer
to "Recommended Lubricants and
Capacities“ section in chapter 2.)
Do not overfill the engine oil. Make sure
the oil level is not above F (Full) mark on
the dipstick.
Information
After adding engine oil, if you travel
approximately 31~62 miles (50~100 km)
after the engine warms up, the warning
message should disappear.
Engine overheated
This message is displayed when the
engine coolant temperature is above
248°F (120°C). This means that the
engine is overheated and may be
damaged.
If your vehicle is overheated, refer to
“Overheating” section in chapter 8.
Check haptic steering wheel system
This message is displayed if there is a
problem with the haptic steering wheel
system. Have the vehicle inspected by an
authorized retailer of Genesis Branded
products.
Check headlight (if equipped)
This message is displayed if the
headlights are not operating properly. A
lamp may need to be replaced.
Make sure to replace the burned out
bulb with a new one of the same wattage
rating.
Check turn signal (if equipped)
This message is displayed if the turn
signal lamps are not operating properly.
A lamp may need to be replaced.
Make sure to replace the burned out
bulb with a new one of the same wattage
rating.
Check headlight LED (if equipped)
This message is displayed if there is a
problem with the LED headlight. Have
the vehicle inspected by an authorized
retailer of Genesis Branded products.
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6-68
Driving Your Vehicle
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 Smart Cruise Control

[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 headlights 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.

6-73
06
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.Check spark plugs and ignition system
Inspect the spark plugs, as specified in
chapter 9. 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.

8-7
08
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 engine
coolant cap and/or liquid-
cooled intercooler 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
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9
9. Maintenance
Engine Compartment ....................................................................................... 9-3
Maintenance Services ...................................................................................... 9-4
Owner’s Responsibility ............................................................................................... 9-4
Owner Maintenance Precautions ............................................................................... 9-4
Owner Maintenance ......................................................................................... 9-5Owner Maintenance Schedule ................................................................................... 9-6
Scheduled Maintenance Services ....................................................................9-7Normal Maintenance Schedule .................................................................................. 9-8
Maintenance Under Severe Usage Conditions ......................................................... 9-11
Explanation of Scheduled Maintenance Items .............................................. 9-13
Engine Oil ......................................................................................................... 9-15
Checking the Engine Oil Level ................................................................................... 9-15
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 ....................................................................................................... 9-23
Filter Replacement ..................................................................................................... 9-23
Cabin Air Filter ................................................................................................. 9-24Filter Inspection..........................................................................................................9-24
Filter Replacement .....................................................................................................9-24
Wiper Blades ................................................................................................... 9-26Blade Inspection ........................................................................................................9-26
Blade Replacement ....................................................................................................9-26
Battery ............................................................................................................. 9-28Battery Usage Recommendations ............................................................................9-29
Battery Replacement ................................................................................................ 9-30
Battery Recharging .................................................................................................... 9-31
Reset Items ................................................................................................................. 9-32