2023 GENESIS G90 check engine

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.
004_RS4_HMA.indd 4-252022-04-06  3:02:33

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.)

5-54
Convenience Features
The Smart Posture Care system
automatically provides a healthy posture
(position) for the driver’s back, and sets
the steering wheel, side view mirrors,
head-up display positions according to
the driver’s body measurements.
Information
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operate normally, have the system checked
by an authorized retailer of Genesis
Branded products.
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1. Check that the gear is in P (Park) while
the Engine Start/Stop button is in the
ON position.
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5-55
05
Motor Driven Power Steering
(MDPS)
The system assists you with steering the
vehicle. If the vehicle is turned off or
if the power steering system becomes
inoperative, you may still steer the
vehicle, but it will require increased
steering effort.
Should you notice any change in the
effort required to steer during normal
vehicle operation, have the system
checked by an authorized retailer of
Genesis Branded products.
CAUTION
If Motor Driven Power Steering does not
operate normally, the warning light
and the message ‘Check motor driven
power steering’ will illuminate on the
instrument cluster. You may steer the
vehicle, but it will require increased
steering efforts. Take the vehicle to an
authorized retailer of Genesis Branded
products and have the system checked
as soon as possible.
Information
The following symptoms may occur during
normal vehicle operation:

[The steering effort may be high
immediately after pressing the Engine
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This happens as the system performs
the MDPS system diagnostics. When
the diagnostics are completed, the
steering wheel effort will return to its
normal condition.

[When the battery voltage is low, you
might have to put more steering effort.
However, it is a temporary condition so
that it will return to normal condition
after charging the battery.

[A click noise may be heard from the
MDPS relay after the Engine Start/Stop
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[Motor noise may be heard when the
vehicle is at a stop or at a low driving
speed.

[When you operate the steering wheel
in low temperatures, abnormal noise
may occur. If the temperature rises, the
noise will disappear. This is a normal
condition.

[When an error is detected from MDPS,
the steering effort assist function will
not be activated in order to prevent
fatal accidents. Instrument cluster
warning lights may be on or the
steering effort may be high. If these
symptoms occur, drive the vehicle to
a safe area as soon as it is safe to do
so. Have the system checked by an
authorized retailer of Genesis Branded
products as soon as possible.
STEERING WHEEL

5-60
Convenience Features
NOTICE
When using snow chains, be sure to
turn off the Rear Wheel Steering by
selecting ‘Snow Chains Installed’ from
the Settings menu in the infotainment
system to protect the vehicle.
After removing the snow chain,
deselect ‘Snow Chains Installed’ from
the Settings menu in the infotainment
system. If it is not deselected, Rear
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more details on setting the menu, refer
to “Winter Tire” section in Chapter 6.
CAUTION

[If there is a problem with the Rear
Wheel Steering system, a warning
light and warning message appears
on the instrument cluster and
Rear Wheel Steering system stops
working. If the warning light and
warning message are still displayed
even when the vehicle is stopped
and the engine is restarted, have the
vehicle checked by an authorized
retailer of Genesis Branded products.

[If the Rear Wheel Steering system
operation is stopped while the rear
wheels are not straight, the vehicle
may lean to one side while driving.
Information
With no warning light on the instrument
cluster, the following conditions are
normal:

[Immediately after starting the engine,
Rear Wheel Steering system performs
diagnostics and operates normally after
about 2 seconds.

[When turning the engine on or off,
Rear Wheel Steering system can
operate for about 2 seconds even
though the steering wheel is not steered
to check system condition.

[Motor noise may be heard when you
steer the vehicle while stopping or
driving at low speed.

[In driving conditions in which the rear
wheels are steered in the same direction
as the front wheels when (
) is on
the instrument cluster by pressing the
Lane Following Assist button on the
steering wheel or Highway Driving
Assist function is activated, keep the
rear wheels straight to improve Lane
Keeping Assist performance.

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5-86
Convenience Features
Opening the Hood
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1. Park the vehicle and set the parking
brake.
2. Pull the release lever to unlatch the
hood. The hood should pop open
slightly.
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3. Go to the front of the vehicle, raise the
hood slightly, push up the secondary
latch M inside of the hood center and
lift the hood N.
After the hood has been lifted halfway,
it will raise completely by itself.
Closing the Hood
1. Before closing the hood, check in and
around the engine compartment to
ensure the following:
- Any tools or other loose objects
are removed from the engine
compartment area or hood
opening area
- All glove, rags, or other
combustible material is removed
from the engine compartment
- All filler caps are tightly and
correctly installed
2. Lower the hood halfway (lifted
approximately 12 in. (30 cm) from the
closed position) and push down to
securely lock in place. Then double
check to be sure the hood is secure.
If the hood can be raised slightly, it is
not securely locked. Open it again and
close it with more force.
WARNING

[Before closing the hood, ensure
all obstructions are removed from
around the hood opening.

[Always double check to be sure that
the hood is firmly latched before
driving away. Check there is no
hood open warning light or message
displayed on the instrument cluster.
Driving with the hood opened may
cause a total loss of visibility, which
might result in an accident.

[Do not move the vehicle with the
hood in the raised position, as vision
is obstructed, which might result in
an accident, and the hood could fall
or be damaged.
HOOD

5-97
05
WARNING
Automotive fuel is highly flammable
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guidelines may result in SERIOUS
INJURY or DEATH:

[Read and follow all warnings posted
at the gas station.

[Before refueling, note the location
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available, at the gas station.

[Before touching the fuel nozzle, you
should eliminate the potential build-
up of static electricity by touching
a metal part of the vehicle, a safe
distance away from the fuel filler
neck, nozzle, or other gas source,
with your bare hand.

[Do not use mobile phones while
refueling. Electric current and/or
electronic interference from cellular
phones can potentially ignite fuel
vapors and cause a fire.

[Do not get back into a vehicle
once you have begun refueling.
You can generate a buildup of
static electricity by touching,
rubbing or sliding against any item
or fabric capable of producing
static electricity. Static electricity
discharge can ignite fuel vapors
causing a fire. If you must re-enter
the vehicle, you should once again
eliminate potentially dangerous
static electricity discharge by
touching a metal part of the vehicle,
away from the fuel filler neck, nozzle
or other fuel source, with your bare
hand.
[When using an approved portable
fuel container, be sure to place the
container on the ground prior to
refueling. Static electricity discharge
from the container can ignite fuel
vapors causing a fire.
Once refueling has begun, contact
between your bare hand and the
vehicle should be maintained until
the filling is complete.

[Use only approved portable plastic
fuel containers designed to carry and
store fuel.

[When refueling, always shift the
gear to the P (Park) position, set
the parking brake, and press the
Engine Start/Stop button to the
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electrical components related to the
engine can ignite fuel vapors causing
a fire.

[Do not use matches or a lighter and
do not smoke or leave a lit cigarette
in your vehicle while at a gas station,
especially during refueling.

[Do not over-fill or top-off your
vehicle tank, which can cause fuel
spillage.

[If a fire breaks out during refueling,
leave the vicinity of the vehicle, and
immediately contact the manager
of the gas station and then contact
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safety instructions they provide.

[If pressurized fuel sprays out, it can
cover your clothes or skin and thus
subject you to the risk of fire and
burns. Always remove the fuel cap
carefully and slowly. If the cap is
venting fuel or if you hear a hissing
sound, wait until the condition stops
before completely removing the cap.

[Always check that the fuel cap is
installed securely to prevent fuel
spillage in the event of an accident.

5-102
Convenience Features
Updating Software
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You can see the progress of the update
on the screen.
After the update is complete, you will
receive a notification on your phone
or the vehicle screen that the software
update is complete.
Information
The screen turns off automatically after 3
minutes to save the battery. If the screen
turns off automatically, you can check the
update progress by pressing the Engine
Start/Stop button.
Information

[After the update starts, you can exit the
vehicle.

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feature is only available for Active and
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users.

[The update details may vary, for details
you can visit the What’s New link.

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software update on mygenesis.com

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attempt to recovery itself automatically
(rollback). If you want to retry the
software update, even after a successful
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[If the update or recovery fails, contact
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[After the update is complete, it
may provide new functions or
improvements. For more information,
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