2021 GENESIS G90 check engine

3-144
Convenient features of your vehicle
Rear Side Window Sunshade
[1] : Right side, [2] Left side
For each of the rear doors, you can
fold or unfold the rear side window
sunshade by using the power win-
dow switch on each rear door. Both
rear sunshades can also be operat-
ed from the switches on the driver’s
door.
To unfold:
1. Close the window by pulling up the
switch.
2. To unfold the sunshade, pull up the
switch once more.
To f o l d :
1. If you want to open the shaded
window, push down the switch one
time to store the sunshade.
2. Push down the switch one more
time to open the window.
Information
If the upward or downward move-
ment of the sunshade is blocked by an
object or part of the body, the sun-
shade will detect the resistance and
will stop movement and move down-
ward or upward.
To reset the rear side window
sunshades
If the sunshade is not operating nor-
mally, it must be reset as follows:
1. Start the engine.
2. Continue pulling up on the power
window switch for at least 10 sec-
onds.
If the rear side window sunshade
does not work properly after follow-
ing the above procedure, it is recom-
mended that the system be checked
by an authorized retailer of Genesis
Branded products.
Do not apply excessive external
force on the rear side window sun-
shade while operating. It may
cause a malfunction.
NOTICE
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OHI048462
■Driver’s window switch
OHI048461
■Rear window switch

5-3
05
Carbon monoxide (CO) gas is toxic. Breathing CO can cause uncon-
sciousness and death.
Engine exhaust contains carbon monoxide which cannot be seen or
smelled.
Do not inhale engine exhaust.
If at any time you smell engine exhaust inside the vehicle, open the win-
dows immediately. Exposure to CO can cause unconsciousness and death
by asphyxiation.
Be sure the exhaust system does not leak.
The exhaust system should be checked whenever the vehicle is raised to
change the oil or for any other purpose. If you hear a change in the sound
of the exhaust or if you drive over something that strikes the underneath
side of the vehicle, have the exhaust system checked as soon as possible
by an authorized retailer of Genesis Branded products.
Do not run the engine in an enclosed area.
Letting the engine idle in your garage, even with the garage door open, is
a hazardous practice. Run the engine only long enough to start the engine
and to move the vehicle out of the garage.
Avoid idling the engine for prolonged periods with people inside the
vehicle.
If it is necessary to idle the engine for a prolonged period with people inside
the vehicle, be sure to do so only in an open area with the air intake set at
"Fresh" and fan control set to high so fresh air is drawn into the interior.
Keep the air intakes clear.
To assure proper operation of the ventilation system, keep the ventilation
air intakes located in front of the windshield clear of snow, ice, leaves, or
other obstructions.
If you must drive with the trunk open:
Close all windows.
Open instrument panel air vents.
Set the air intake control at "Fresh", the air flow control at "Floor" or "Face",
and the fan control set to high.
WARNING

5-4
Driving your vehicle
Before Entering the Vehicle
• Be sure all windows, outside mir-
ror(s), and outside lights are clean
and unobstructed.
• Remove frost, snow, or ice.
• Visually check the tires for uneven
wear and damage.
• Check under the vehicle for any
sign of leaks.
• Be sure there are no obstacles
behind you if you intend to back up.
Before Starting
• Make sure the hood, the trunk, and
the doors are securely closed and
locked.
• Adjust the position of the seat and
steering wheel.
• Adjust the inside and outer side
view mirrors.
• Verify all the lights work.
• Fasten your seatbelt. Check that all
passengers have fastened their
seatbelts.
• Check the gauges and indicators in
the instrument panel and the mes-
sages on the instrument display
when the ignition switch is in the
ON position.
• Check that any items you are car-
rying are stored properly or fas-
tened down securely.
BEFORE DRIVING
CALIFORNIA PROPOSITION 65
WARNING
Engine exhaust and a wide vari-
ety of automobile components
including components found in
the interior furnishings in a vehi-
cle, contain or emit harmful
chemicals known to the State of
California to cause cancer and
birth defects and reproductive
harm. In addition, certain fluids
contained in vehicles and certain
products of components contain
or emit chemicals known to the
State of California to cause can-
cer and birth defects or other
reproductive harm.
WARNING

5-7
05
Engine Stop/Start Button
Positions
OFF
To turn off the engine, press the
Engine Start/Stop button with the
vehicle shifted to P (Park).
Note if the Engine Start/Stop button
is pressed with the vehicle shifted to
D (Drive) or R (Reverse), the vehicle
will automatically shift to P (Park).
If the Engine Start/Stop button is
pressed with the vehicle shifted to N
(Neutral), the Engine Start/Stop but-
ton will go to the ACC position.
ACC
Press the Engine Start/Stop button
when the button is in the OFF posi-
tion without depressing the brake
pedal.
Some of the electrical accessories
are usable. The steering wheel
unlocks.
Information
If you leave the Engine Start/Stop but-
ton in the ACC position for more than
one hour, the battery power will turn
off automatically to prevent the bat-
tery from discharging.
ON
Press the Engine Start/Stop button
while it is in the ACC position without
depressing the brake pedal.
The warning lights can be checked
before the engine is started.
Information
Do not leave the Engine Start/Stop
button in the ON position when the
engine is not running to prevent the
battery from discharging.
START
To start the engine, depress the
brake pedal and press the Engine
Start/Stop button with the vehicle
shifted to the P (Park) or the N
(Neutral) position.
For your safety, start the engine with
the vehicle shifted to the P (Park)
position.
Information
If you press the Engine Start/Stop but-
ton without depressing the brake
pedal, the engine does not start and
the Engine Start/Stop button changes
as follows:
OFF
→ACC →ON →OFF
However, the engine may start if you
depress the brake pedal within 0.5 sec-
ond after pressing the Engine Start/
Stop button from the OFF position.
i
i
i• NEVER reach through the
steering wheel for the Engine
Start/Stop button or any other
control while the vehicle is in
motion. The presence of your
hand or arm in this area may
cause a loss of vehicle control
resulting in an accident.

5-8
Driving your vehicle
Starting the Engine
Information
• The engine will start by pressing the
Engine Start/Stop button, only when
the smart key is in the vehicle.
Even if the smart key is in the vehi-
cle, if it is far away from the driver,
the engine may not start.
• When the Engine Start/Stop button
is in the ACC, ON and START posi-
tion, if any door is open, the system
checks for the smart key. If the
smart key is not in the vehicle, the
warning "Key not in vehicle" will
come on and if all doors are closed,
the chime will also sound for about 5
seconds. Keep the smart key in the
vehicle.
1. Always carry the smart key with
you.
2. Make sure the parking brake is
applied.
3. Make sure the vehicle is shifted to
P (Park) by pressing the P button.
4. Depress the brake pedal.
5. Press the Engine Start/Stop but-
ton.
Information
• Do not wait for the engine to warm
up while the vehicle remains station-
ary. Start driving at moderate
engine speeds. (Steep accelerating
and decelerating should be avoid-
ed.)
• Always start the vehicle with your
foot on the brake pedal. Do not
depress the accelerator while start-
ing the vehicle. Do not race the
engine while warming it up.
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i
• Always wear appropriate shoes
when operating your vehicle.
Unsuitable shoes, such as
high heels, ski boots, sandals,
flip-flops, etc., may interfere
with your ability to use the
brake and accelerator pedals.
• Do not start the vehicle with the
accelerator pedal depressed.
The vehicle can move which
can lead to an accident.
• Wait until the engine rpm is
normal. The vehicle may sud-
denly move if the brake pedal
is released when the rpm is
high.
WARNING

5-11
05
Transmission ranges
The indicator in the instrument clus-
ter displays the gear position when
the Engine Start/Stop button is in the
ON position.
P (Park)
Always come to a complete stop
before shifting into P (Park).
To shift the gear from R (Reverse), N
(Neutral), D (Drive) or Manual mode
to P (Park), press the P button.
If you turn off the engine in D (Drive),
R (Reverse) or Manual shift mode the
shifting automatically changes to P
(Park).
When you park the vehicle, press the
P button while depressing the brake
pedal and then apply the parking
brake. To reduce the risk of serious
injury or death:
• ALWAYS check the surround-
ing areas near your vehicle for
people, especially children,
before shifting a vehicle into
D (Drive) or R (Reverse).
• Before leaving the driver's
seat, always make sure the
vehicle is shifted to the P
(Park) position, then apply the
parking brake, and place the
Engine Start/Stop button in
the OFF position. Unexpected
and sudden vehicle move-
ment can occur if these pre-
cautions are not followed.
• When using the paddle shifter
(manual shift mode), do not
use engine braking (shifting
from a high gear to lower
gear) rapidly on slippery
roads. The vehicle may slip
causing an accident.
WARNING
• Shifting into P (Park) while the
vehicle is in motion may cause
you to lose control of the vehi-
cle.
• After the vehicle has stopped,
always make sure the vehicle
is in P (Park), apply the parking
brake, and turn the engine off.
• When parking on an incline,
shift the gear to P (Park) and
apply the parking brake to pre-
vent the vehicle from rolling
downhill.
WARNING
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5-16
Driving your vehicle
LCD Display Messages
Shifter system malfunction
The message appears on the cluster
LCD display when the transmission
or the shift lever does not properly
operate in the P (Park) position.
Immediately have the vehicle inspect-
ed by an authorized retailer of
Genesis Branded products.
Check shift lever
The message appears on the cluster
LCD display when there is a mal-
function with one of the key transmis-
sion shifter components.
Immediately have the vehicle inspect-
ed by an authorized retailer of Genesis
Branded products.
Shifting conditions not met
The message appears on the cluster
LCD display when engine rpm is too
high, or when driving speed is too
fast to shift the gear.
Decrease the vehicle speed or slow
down before shifting the gear.
Press brake pedal to change
gear
The message appears on the cluster
LCD display when the brake pedal is
not depressed while shifting the
gear.
Depress the brake pedal and then
shift the gear.
OHI048134L
OHI058019L
OHI058222L
OHI048133L

5-19
05
Good Driving Practices
• Never shift from P (Park) or N
(Neutral) to any other position with
the accelerator pedal depressed.
• Never shift into P (Park) when the
vehicle is in motion.
Be sure the vehicle is completely
stopped before you attempt to shift
into R (Reverse) or D (Drive).
• Do not move the shift lever to N
(Neutral) when driving. If the shift
lever is moved to N (Neutral) while
driving, the vehicle loses the ability
to provide engine braking. Doing
so may increase the risk of an acci-
dent.
• Driving uphill or downhill, always
shift to D (Drive) when driving for-
ward or to R (Reverse) when driv-
ing backwards, and check the gear
position indicated on the cluster
before driving. If you drive in the
opposite direction of the selected
gear, the engine will turn off and a
serious accident might be occurred
due to the degraded brake per-
formance.
• Do not drive with your foot resting
on the brake pedal. Even light, but
consistent pedal pressure can
result in the brakes overheating,
brake wear and possibly even
brake failure.
• Depressing both accelerator and
brake pedals at the same time can
trigger logic for engine power
reduction to assure vehicle decel-
eration. Vehicle acceleration will
resume after the brake pedal is
released.• When driving in Manual shift mode
with the paddle shifter, slow down
before shifting to a lower gear.
Otherwise, the lower gear may not
be engaged if the engine rpms are
outside of the allowable range.
• Always apply the parking brake
when leaving the vehicle. Do not
depend on placing the transmis-
sion in P (Park) to keep the vehicle
from moving.
• Exercise extreme caution when
driving on a slippery surface. Be
especially careful when braking,
accelerating or shifting gears. On a
slippery surface, an abrupt change
in vehicle speed can cause the
drive wheels to lose traction and
may cause loss of vehicle control
resulting in an accident.
• Optimum vehicle performance and
economy is obtained by smoothly
depressing and releasing the
accelerator.