2023 GENESIS G90 maintenance

5
Accessing Your Vehicle ..................................................................................... 5-6Using Smart Key ...........................................................................................................5-6
Smart Key Precautions ................................................................................................ 5-11
Replacing the Battery .................................................................................................5-13
Immobilizer System ................................................................................................... 5-14
Genesis Digital Key .......................................................................................... 5-16Digital Key (Smart Phone) .......................................................................................... 5-16
Digital Key (Card Key) ................................................................................................. 5-22
Personalized Profile and Vehicle Settings ............................................................... 5-25
Used Vehicle/Digital Key Maintenance .................................................................... 5-28
Limitations of the System .......................................................................................... 5-28
Fingerprint authentication system ................................................................ 5-29
Fingerprint Authentication System Settings ........................................................... 5-29
Fingerprint Authentication System Operation ........................................................5-30
Limitations of the System ...........................................................................................5-31
When purchasing a used vehicle ...............................................................................5-31
Door locks........................................................................................................ 5-32Operating Door Locks from Outside the Vehicle .................................................... 5-32
Power Door Latch ....................................................................................................... 5-37
Operating Door Locks from Inside the Vehicle ........................................................5-38
Easy Close ................................................................................................................... 5-41
Automatic Door Lock and Unlock Features ..............................................................5-43
Electronic Child Safety Lock ..................................................................................... 5-44
Theft-Alarm System ........................................................................................ 5-46
Advanced Rear Occupant Alert (ROA) .......................................................... 5-47
System Setting............................................................................................................ 5-47
System Operation ....................................................................................................... 5-47
System Precautions ................................................................................................... 5-48
Declaration of Conformity ........................................................................................ 5-49
Integrated memory system ............................................................................ 5-50Storing Memory Positions ........................................................................................ 5-51
Recalling Memory Positions ...................................................................................... 5-51
Seat Easy Access ........................................................................................................ 5-52
Resetting the System .................................................................................................5-53
Smart Posture Care System ........................................................................... 5-54
5. Convenience Features

5
Automatic Climate Control System ............................................................... 5-121Automatic Temperature Control Mode ....................................................................5-125
Manual Temperature Control Mode ........................................................................ 5-126
System Maintenance ............................................................................................... 5-138
Photo-catalyst Module ............................................................................................ 5-140
Windshield defrosting and defogging ......................................................... 5-142To Defog Inside Windshield ..................................................................................... 5-142
To Defrost Inside Windshield ................................................................................... 5-143
Defogging Logic ....................................................................................................... 5-143
Rear Window Defroster............................................................................................ 5-144
Climate Control Additional Features ............................................................ 5-145Auto Defogging System ........................................................................................... 5-145
Auto Dehumidify ...................................................................................................... 5-146
Recirculating Air When Washer Fluid is Used .........................................................5-147
Sunroof Inside Air Recirculation ...............................................................................5-147
Auto. Controls that Use Climate Control Settings (for driver’s seat) .....................5-147
Recirculation Mode Plus .......................................................................................... 5-148
Storage compartment ...................................................................................5-149Center Console Storage ........................................................................................... 5-149
Rear Console Storage .............................................................................................. 5-149
UV-C sterilizer system .............................................................................................. 5-150
Armrest Storage Box .................................................................................................5-152
Glove Box ...................................................................................................................5-152
Sunglass Holder ........................................................................................................5-153
Interior Features ............................................................................................. 5-154Cup Holder ................................................................................................................ 5-154
Sunvisor .....................................................................................................................5-155
Rear Mirror .................................................................................................................5-155
Power Outlet ............................................................................................................. 5-156
USB Charger .............................................................................................................. 5-157
Wireless Smart Phone Charging System ................................................................ 5-158
Clock .......................................................................................................................... 5-161
Coat Hook .................................................................................................................. 5-161
Floor Mat Anchor(s) ................................................................................................... 5-161
Rear Side Window Sunshades ................................................................................. 5-162
Rear Window Sunshade ........................................................................................... 5-164
Luggage Net Holder ................................................................................................. 5-165

5-28
Convenience Features
Used Vehicle/Digital Key
Maintenance
Purchasing used vehicle
If any of the digital key devices (smart
phone key, card key) are registered in
the vehicle, the ‘Digital key registered’
message appears once on the instrument
cluster when the Engine Start/Stop
button is in the ON position after
unlocking the doors. When purchasing
a used vehicle, be sure to check the
message and delete the smart phone key
and card key registered by the previous
user and inform the purchase of a used
vehicle through Genesis Customer Care.
If the card key comes with the vehicle,
check whether it operates properly.
Digital Key Maintenance
If you need to have your Digital Key
System repaired or replaced, the
registered smartphone key or card key
can be deleted.
Limitations of the System

[Genesis digital key may not operate if
any of the following occurs:
- The smart phone battery or the
vehicle battery is discharged
- NFC or Bluetooth is turned off in the
smart phone settings
- A credit card is near your smart
phone, or a metal or thick smart
phone case is used
- The card key is near other cards, or
used in a wallet or card holder
- There is electronic interference by
other vehicles, objects, etc.

[The vehicle may not be controlled
by the smart phone if any of the
following occurs:
- The basic necessary functions of the
smart phone are operating (general
call, urgent call, audio, etc.)
- Using a wireless earphone (general
call, urgent call, audio, etc.)

5-138
Convenience Features
System Maintenance
Cabin air filter
OHI048581L
A : Outside air,
B : Recirculated air,
C : Climate control air filter,
D : Blower,
E : Evaporator core,
F : Heater core
The cabin air filter is installed behind
the glove box. It filters the dust or other
pollutants that enter the vehicle through
the heating and air conditioning system.
We recommend that the cabin air filter
be replaced by an authorized retailer of
Genesis Branded products according to
the maintenance schedule. If the vehicle
is being driven in severe conditions such
as dusty or rough roads, more frequent
cabin air filter inspections and changes
are required.
If the air flow rate suddenly decreases,
have the system inspected at an
authorized retailer of Genesis Branded
products.
Checking the amount of air
conditioner refrigerant and
compressor lubricant
When the amount of refrigerant is low,
the performance of the air conditioning
is reduced. Overfilling also reduces the
performance of the air conditioning
system.
Therefore, if abnormal operation is
found, have the system inspected by an
authorized retailer of Genesis Branded
products.
NOTICE
It is important that the correct type and
amount of oil and refrigerant is used.
Otherwise, damage to the compressor
and abnormal system operation may
occur. To prevent damage, the air
conditioning system in your vehicle
should only be serviced by trained and
certified technicians.
NOTICE

[The refrigerant system should only
be serviced by trained and certified
technicians to insure proper and safe
operation.

[The refrigerant system should be
serviced in a well-ventilated place.

[The air conditioning evaporator
(cooling coil) shall never be repaired
or replaced with one removed from
a used or salvaged vehicle and new
replacement MAC evaporators shall
be certified (and labeled) as meeting
SAE Standard J2842.

6-39
06
All Wheel Drive (AWD) 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.
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 cornering or
turning.

[Do not make quick steering wheel
movements, such as sharp lane
changes or fast, sharp turns.

[The risk of a rollover is greatly
increased if you lose control 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.
WARNING
If the AWD () warning light stays on
the instrument cluster, your vehicle
may have a malfunction with the
AWD system. Whenever the AWD
(
) warning light illuminates, have
the vehicle inspected by an authorized
retailer of Genesis Branded products as
soon as possible.
NOTICE

[Do not drive in water if the water
level is higher than the bottom of the
vehicle.

[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 condition is returned.

[Shorten your scheduled
maintenance interval if you drive in
off-road conditions such as sand,
mud or water (see "Maintenance
Under Severe Usage Conditions"
section in chapter 9).

[Always wash your vehicle thoroughly
after off road use, especially the
bottom of the vehicle.

[Be sure to equip the vehicle with four
tires of the same size and type.

[Make sure that a full time AWD
vehicle is towed by a flat bed tow
truck.
$//:+((/'5,9(

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.

8-9
08
Tire Pressure Monitoring System
WARNING
Over-inflation or under-inflation can
reduce tire life, adversely affect vehicle
handling, and lead to sudden tire failure
that may cause loss of vehicle control
resulting in an accident.
Each tire, including the spare (if
provided), should be checked monthly
when cold and inflated to the inflation
pressure recommended by the vehicle
manufacturer on the vehicle placard
or tire inflation pressure label. (If your
vehicle has tires of a different size than
the size indicated on the vehicle placard
or tire inflation pressure label, you should
determine the proper tire inflation
pressure for those tires.)
As an added safety feature, your
vehicle has been equipped with a tire
pressure monitoring system (TPMS)
that illuminates a low tire pressure
telltale when one or more of your tires is
significantly under-inflated. Accordingly,
when the low tire pressure telltale
illuminates, you should stop and check
your tires as soon as possible, and inflate
them to the proper pressure. Driving on
a significantly under-inflated tire causes
the tire to overheat and can lead to tire
failure.
Under-inflation also reduces fuel
efficiency and tire tread life, and may
affect the vehicle’s handling and
stopping ability.
Please note that the TPMS is not a
substitute for proper tire maintenance,
and it is the driver’s responsibility to
maintain correct tire pressure, even if
under-inflation has not reached the level
to trigger illumination of the TPMS low
tire pressure telltale.
Your vehicle has also been equipped with
a TPMS malfunction indicator to indicate
when the system is not operating
properly. The TPMS malfunction
indicator is combined with the low
tire pressure telltale. When the system
detects a malfunction, the telltale will
flash for approximately one minute and
then remain continuously illuminated.
This sequence will continue upon
subsequent vehicle start-ups as long as
the malfunction exists.
When the malfunction indicator is
illuminated, the system may not be able
to detect or signal low tire pressure as
intended. TPMS malfunctions may occur
for a variety of reasons, including the
installation of replacement or alternate
tires or wheels on the vehicle that
prevent the TPMS from functioning
properly.
Always check the TPMS malfunction
telltale after replacing one or more tires
or wheels on your vehicle to ensure that
the replacement or alternate tires and
wheels allow the TPMS to continue to
function properly.
NOTICE
If any of the below happens, have
the system checked by an authorized
retailer of Genesis Branded products.
1. The Low Tire Pressure Telltale/ TPMS
Malfunction Indicator does not
illuminate for 3 seconds when the
Engine Start/Stop button is pressed
to the ON position or when the
engine is running.
2. The TPMS Malfunction Indicator
remains illuminated after blinking for
approximately 1 minute.
3. The Low Tire Pressure Position
Telltale remains illuminated.
008_RS4_HMA.indd 8-92022-04-18  3:48:07

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