2023 GENESIS G90 brake fluid

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 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
High beam indicator light ....................................................................................... 4-19
Low beam indicator light ........................................................................................4-20
Light ON indicator light ...........................................................................................4-20
High Beam Assist indicator light .............................................................................4-20
AUTO HOLD indicator light .....................................................................................4-20
LCD Display Messages ................................................................................................4-21
Vehicle is on ..............................................................................................................4-21
Shift to P ....................................................................................................................4-21
Vehicle is in N. Press START button and shift to P ..................................................4-21
Low key battery ........................................................................................................4-21
Press brake pedal to start engine ...........................................................................4-21
Key not in vehicle .....................................................................................................4-21
Key not detected .......................................................................................................4-21
Press START button again .......................................................................................4-21
Press START button with key ................................................................................... 4-22
Check BRAKE SWITCH fuse ................................................................................... 4-22
Shift to P or N to start engine .................................................................................. 4-22
Battery discharging due to external electrical devices ......................................... 4-22
Check rear wheel steering system .......................................................................... 4-22
Door, Hood, trunk open indicator ........................................................................... 4-23
Sunroof open indicator ............................................................................................ 4-23
Low tire pressure ..................................................................................................... 4-23
Lights ........................................................................................................................4-24
Wiper ........................................................................................................................ 4-24
Low washer fluid ...................................................................................................... 4-25
Low fuel .................................................................................................................... 4-25
Low engine oil .......................................................................................................... 4-25
Engine overheated ................................................................................................... 4-25
Check haptic steering wheel system ...................................................................... 4-25
Check headlight ....................................................................................................... 4-25
Check turn signal ..................................................................................................... 4-25
Check headlight LED ............................................................................................... 4-25
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4-11
04
Parking brake & Brake fluid
warning light
This warning light illuminates:
• When you set the Engine Start/Stop
button to the ON position.
-The parking brake & brake fluid
warning light illuminates for about 3
seconds and will then turn off once
the parking brake is released.
• Whenever the parking brake is
applied.
• Whenever the brake fluid level in the
reservoir is low.
-If the warning light illuminates
with the parking brake released, it
indicates the brake fluid level in the
reservoir is low.
If the brake fluid level in the reservoir is
low:
1. Drive carefully to the nearest safe
location and stop your vehicle.
2. With the engine stopped, check the
brake fluid level immediately and add
fluid as required (For more details,
refer to “Brake Fluid” section in
chapter 9). After adding brake fluid,
check all brake components for fluid
leaks. If a brake fluid leak is found, or
if the warning light remains on, or if
the brakes do not operate properly, do
not drive the vehicle. Have the vehicle
inspected by an authorized retailer of
Genesis Branded products.
Dual-diagonal braking system
Your vehicle is equipped with dual-
diagonal braking system. This means you
still have braking on two wheels even if
one of the dual systems should fail.
With only one of the dual systems
working, more than normal pedal travel
and greater pedal pressure is required to
stop the vehicle.
Also, the vehicle will not stop in as short
a distance with only a portion of the
brake system working.
If the brakes fail while you are driving,
shift to a lower gear for additional engine
braking and stop the vehicle as soon as it
is safe to do so.
WARNING
Parking Brake & Brake Fluid warning
light
Driving the vehicle with a warning light
ON is dangerous. If the Parking Brake
& Brake Fluid warning light illuminates
with the parking brake released, it
indicates that the brake fluid level is
low.
If this occurs, have the vehicle
inspected by an authorized retailer of
Genesis Branded products.
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4-12
Instrument Cluster, Armrest touchscreen, Infotainment system
Anti-lock Brake System (ABS)
warning light
This warning light illuminates:
• When you set the Engine Start/Stop
button to the ON position.
-The ABS warning light illuminates
for about 3 seconds and then goes
off.
• Whenever there is a malfunction with
the ABS.
Note that the hydraulic braking
system will still be operational even if
there is a malfunction with the ABS.
If this occurs, have the vehicle
inspected by an authorized retailer of
Genesis Branded products.
Electronic Brake Force
Distribution (EBD) system
warning light
When the ABS warning and
Parking Brake warning lights are on
simultaneously, it may indicate a
problem with the Electronic Brake Force
Distribution system.
If this occurs, have the vehicle inspected
by an authorized retailer of Genesis
Branded products.
WARNING
Electronic Brake Force Distribution
(EBD) system warning light
When both ABS and Parking Brake &
Brake Fluid warning lights are on, the
brake system will not work normally
and you may experience an unexpected
and dangerous situation during sudden
braking.
If this occurs, avoid high speed driving
and abrupt braking.
Have the vehicle inspected by an
authorized retailer of Genesis Branded
products as soon as possible.
NOTICE
Electronic Brake Force Distribution
(EBD) system warning light
When the ABS warning light is on
or both ABS and Parking Brake &
Brake Fluid warning lights are on, the
speedometer, odometer, or tripmeter
may not work. Also, the EPS warning
light may illuminate and the steering
effort may increase or decrease.
If this occurs, have the vehicle
inspected by an authorized retailer of
Genesis Branded products as soon as
possible.
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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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