ECU GENESIS G90 2023 Owners Manual

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01
Your new vehicle is designed to obtain maximum performance with UNLEADED FUEL,
as well as minimize exhaust emissions and spark plug fouling.
Your new vehicle is designed to use only unleaded fuel having an octane number
((R+M)/2) of 87 (Research Octane Number 91) or higher. For improved vehicle
performance, premium unleaded fuel with an octane number ((R+M)/2) of 91
(Research Octane Number 95) or higher is recommended. (Do not use methanol
blended fuels.)
NOTICE
To prevent damage to the engine and engine components, never add any fuel
system cleaning agents to the fuel tank other than what has been specified.
Consult an authorized retailer of Genesis Branded products for additional
information.
WARNING

[Do not “top off” after the nozzle automatically shuts off when refueling.

[Always check that the fuel cap is installed securely to prevent fuel spillage in the
event of an accident.
Gasoline containing alcohol and methanol
Gasohol, a mixture of gasoline and ethanol (also known as grain alcohol) are being
marketed along with or instead of leaded or unleaded gasoline. For example, “E15” is
a gasohol comprised of 15% ethanol and 85% gasoline. Do not use gasohol containing
more than 15% ethanol, and do not use gasoline or gasohol containing any methanol.
Either of these fuels may cause drivability problems and damage to the fuel system,
engine control system and emission control system.
Discontinue using gasohol of any kind if drivability problems occur. “E85” fuel is
an alternative fuel comprised of 85 percent ethanol and 15 percent gasoline, and is
manufactured exclusively for use in Flexible Fuel Vehicles. “E85” is not compatible
with your vehicle. Use of “E85” may result in poor engine performance and damage
to your vehicle’s engine and fuel system. Genesis Branded Vehicle recommends that
customers do not use fuel with an ethanol content exceeding 15 percent.
NOTICE
To prevent damage to your vehicle’s engine and fuel system:

[Never use gasohol which contains methanol.

[Never use gasohol containing more than 15% ethanol.

[Never use leaded fuel or leaded gasohol.

[Never use “E85” fuel.
Your New Vehicle Limited Warranty does not cover damage to the fuel system or any
performance problems caused by the use of “E85” fuel.
FUEL REQUIREMENTS

3-30
Safety System
Carrying long/narrow cargo
ORS031038
Additional cargo space is provided to
accommodate long/narrow cargo (skis,
poles, etc.) not able to fit properly in the
trunk when closed.
1. Pull the armrest down.
2. Pull the cover down while pushing the
release lever down.
NOTICE

[Be careful when loading cargo
through the rear passenger seats
to prevent damage to the vehicle
interior.

[When both the armrest and the
panel, which located between the
rear seatback and the trunk for long-
item storage, are folded down, put
back the panel first, before folding
back the arm rest. If not, the panel
knobs and the armrest knobs may
interfere with each other and get
damaged.
CAUTION

[Make sure the engine is off, the
vehicle is shifted to P (Park) and the
parking brake is applied whenever
loading or unloading cargo. The
vehicle may move if the shift lever
is inadvertently moved to another
position.

[When cargo is loaded through the
rear passenger seats, ensure the
cargo is properly secured to prevent
it from moving while driving.
WARNING
Cargo should always be secured to
prevent it from being thrown about the
vehicle in a collision and causing injury
to the vehicle occupants. Do not place
objects in the rear seats, since they
cannot be properly secured and may hit
the front seat occupants in a collision.

3-39
03
SEAT BELTS
This section describes how to use the
seat belts properly. It also describes
some of the things not to do when using
seat belts.
Seat Belt Safety Precautions
Always fasten your seat belt and make
sure all passengers have fastened their
seat belts before starting any trip. Air
bags are designed to supplement the
seat belt as an additional safety device,
but they are not a substitute. Most states
require all occupants of a vehicle to wear
seat belts.
WARNING
Seat belts must be used by ALL
passengers whenever the vehicle is
moving. Take the following precautions
when adjusting and wearing seat belts:

[Children under the age of 13 should
be properly restrained in the rear
seats.

[Never allow children to ride in the
front passenger seat, unless the
air bag is deactivated. If a child is
seated move the seat as far back as
possible. And the child must always
be restrained in the seat properly.

[NEVER allow an infant or child to be
carried on an occupant’s lap.

[NEVER ride with the seatback
reclined when the vehicle is moving.

[Do not allow children to share a seat
or seat belt.

[Do not wear the shoulder belt under
your arm or behind your back.
[Never wear a seat belt over fragile
objects. If there is a sudden stop or
impact, the seat belt can damage it.

[Do not use the seat belt if it is
twisted. A twisted seat belt will not
protect you properly in an accident.

[Do not use a seat belt if the webbing
or hardware is damaged.

[Do not latch the seat belt into the
buckles of other seats.

[NEVER unfasten the seat belt
while driving. This may cause loss
of vehicle control resulting in an
accident.

[Make sure there is nothing in the
buckle interfering with the seat
belt latch mechanism, because any
materials in the buckle can cause the
seat belt not to be fastened securely.

[No modifications or additions
should be made by the user which
will either prevent the seat belt
adjusting devices from operating to
remove slack, or prevent the seat
belt assembly from being adjusted to
remove slack.
WARNING
Damaged seat belts and seat belt
assemblies will not operate properly.
Always replace:

[Frayed, contaminated, or damaged
webbing.

[Damaged hardware.

[The entire seat belt assembly after it
has been worn in an accident, even
if damage to webbing or assembly is
not apparent.

3-43
03
ORS031128
To release your seat belt:
Press the release button M in the locking
buckle.
When it is released, the belt should
automatically draw back into the
retractor. If this does not happen, check
the belt to be sure it is not twisted, then
try again.
Rear center seat belt (if equipped)
ORS031048L
1. Take out the buckle N, which is stored
between the seat/seatback cushions.
2. Insert the metal plate M into the
buckle N, until it clicks.
You can make sure its secure
fastening by pulling the seatbelt
webbing. The buckle with ‘CENTER’
mark should be used for the 3-point
seatbelt.
3. Restore the buckle between the seat/
seatback cushion after unfastening
the seatbelt.
Pre-tensioner seat belt
ORS031103
Your vehicle is equipped with driver’s and
front passenger’s and rear passengers
Pre-tensioner Seat Belts (Retractor
Pre-tensioner). The purpose of the pre-
tensioner is to make sure the seat belts
fit tightly against the occupant’s body
in certain frontal or side collision(s).
The pre-tensioner seat belts may be
activated in crashes where the frontal
or side collision(s) is severe enough,
together with the air bags.
When the vehicle stops suddenly, or if
the occupant tries to lean forward too
quickly, the seat belt retractor will lock
into position.
In certain frontal collisions, the pre-
tensioner will activate and pull the seat
belt into tighter contact against the
occupant’s body.
If the system senses excessive tension
on the driver or passenger’s seat belt
when the pre-tensioner system activates,
the load limiter inside the retractor
pre-tensioner will release some of the
pressure on the affected seat belt.

3-47
03
Seat belt use and children
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All 50 states have child restraint laws
which require children to travel in
approved child restraint devices,
including booster seats. The age at
which seat belts can be used instead
of child restraints differs among states,
so you should be aware of the specific
requirements in your state, and where
you are travelling. Infant and child
restraints must be properly placed
and installed in a rear seat. For more
information refer to the “Child Restraint
Systems” section in this chapter.
WARNING
ALWAYS properly restrain infants and
small children in a Child Restraint
System appropriate for the child’s
height and weight.
To reduce the risk of serious injury or
death to a child and other passengers,
NEVER hold a child in your lap or arms
when the vehicle is moving. The violent
forces created during an accident will
tear the child from your arms and throw
the child against the interior of the
vehicle.
Small children are best protected
from injury in an accident when
properly restrained in the rear seat
by a child restraint system that meets
the requirements of the Federal Motor
Vehicle Safety Standards. Before buying
any child restraint system, make sure
that it has a label certifying that it meets
Federal Motor Vehicle Safety Standard
FMVSS 213. The restraint must be
appropriate for your child’s height and
weight. Check the label on the child
restraint for this information. Refer to the
“Child Restraint Systems” section in this
chapter.
Larger children
Children under age 13 who are too large
for a booster seat should always occupy
the rear seat and use the available lap/
shoulder belts. A seat belt should lie
across the upper thighs and be snug
across the shoulder and chest to
restrain the child safely. Check belt fit
periodically. A child’s squirming could
put the belt out of position. In the event
of an accident, children are afforded the
best safety restrained by a proper Child
Restraint System in the rear seats.
If a larger child over age 13 must be
seated in the front seat, the child must
be securely restrained by the available
lap/shoulder belt and the seat should be
placed in the rearmost position.
If the shoulder belt portion slightly
touches the child’s neck or face, try
placing the child closer to the center
of the vehicle. If the shoulder belt still
touches their face or neck, they need to
be returned to an appropriate booster
seat in the rear seat.
WARNING

[Always make sure larger children’s
seat belts are worn and properly
adjusted.

[NEVER allow the shoulder belt to
contact the child’s neck or face.

[Do not allow more than one child to
use a single seat belt.

3-52
Safety System
After selecting a proper child seat
for your child, check to make sure it
fits properly in your vehicle. Follow
the instructions provided by the
manufacturer when installing the child
seat. Note these general steps when
installing the seat to your vehicle:

[Properly secure the child restraint to
the vehicle. All child restraints must
be secured to the vehicle with the lap
part of a lap/shoulder belt or with the
LATCH system.

[Make sure the child restraint is
firmly secured. After installing a
child restraint to the vehicle, push
and pull the seat forward-and-back
and side-to-side to verify that it
is securely attached to the seat. A
child restraint secured with a seat
belt should be installed as firmly as
possible. However, some side-to-side
movement can be expected.

[Secure the child in the Child
Restraint System. Make sure the
child is properly strapped in the Child
Restraint System according to the
Child Restraint System manufacturer’s
instructions.
CAUTION
A Child Restraint System in a closed
vehicle can become very hot. To prevent
burns, check the seating surface and
buckles before placing your child in the
Child Restraint System.
Lower Anchors and Tether for
Children (LATCH System)
The LATCH system holds a child restraint
during driving and in an accident. This
system is designed to make installation
of the child restraint easier and reduce
the possibility of improperly installing
your child restraint. The LATCH system
uses anchors in the vehicle and
attachments on the child restraint. The
LATCH system eliminates the need to use
seat belts to secure the child restraint to
the rear seats.
Lower anchors are metal bars built into
the vehicle. There are two lower anchors
for each LATCH seating position that
will accommodate a child restraint with
lower attachments.
To use the LATCH system in your vehicle,
you must have a child restraint with
LATCH attachments.
The child seat manufacturer will provide
you with instructions on how to use the
child seat with its attachments for the
LATCH lower anchors.

3-53
03
ORS031052
LATCH anchors have been provided in
the left and right outboard rear seating
positions. Their locations are shown
in the illustration. There are no LATCH
anchors provided for the center rear
seating position.
WARNING
Do not attempt to install a child
restraint system using LATCH anchors in
the rear center seating position. There
are no LATCH anchors provided for this
seat. Using the outboard seat anchors
can damage the anchors which may
break or fail in a collision resulting in
serious injury or death.
ORS031053A : Lower Anchorage Position Indicator,
B : Lower Anchorage
The lower anchor position indicator
symbols are located on the left and right
rear seat backs to identify the position
of the lower anchors in your vehicle (see
arrows in illustration).
The LATCH anchors are located between
the seatback and the seat cushion of the
rear seat left and right outboard seating
positions.
Securing a child restraint with the
LATCH anchors system
To install a LATCH-compatible child
restraint in either of the rear outboard
seating positions:
1. Move the seat belt buckle away from
the lower anchors.
2. Move any other objects away from
the anchors that could prevent a
secure connection between the child
restraint and the lower anchors.
3. Place the child restraint on the vehicle
seat, then attach the seat to the lower
anchors according to the instructions
provided by the child restraint
manufacturer.
4. Follow the child restraint instructions
for properly adjusting and tightening
the lower attachments on the child
restraint to the lower anchors.

3-54
Safety System
WARNING
Take the following precautions when
using the LATCH system:

[Read and follow all installation
instructions provided with your child
restraint system.

[To prevent the child from reaching
and taking hold of unretracted
seat belts, buckle all unused rear
seat belts and retract the seat belt
webbing behind the child. Children
can be strangled if a shoulder belt
becomes wrapped around their neck
and the seat belt tightens.

[NEVER attach more than one
child restraint to a single anchor.
This could cause the anchor or
attachment to come loose or break.

[Always have the LATCH system
inspected by an authorized retailer
of Genesis Branded products after an
accident. An accident can damage
the LATCH system and may not
properly secure the child restraint.
NOTICE
The recommended weight for the
LATCH system is under 65 lb (30 kg).
How to determine an appropriate child
restraint weight:
Child weight + Child restraint weight <
65 lb (30kg)
Securing a child restraint seat with
“Tether Anchor” system
ORS032096N
First secure the child restraint with
the LATCH lower anchors or the seat
belt. If the child restraint manufacturer
recommends that the top tether strap
be attached, attach and tighten the
top tether strap to the top tether strap
anchor.
Child restraint hook holders are located
on the rear of the seatbacks.
WARNING
Take the following precautions when
installing the tether strap:

[Read and follow all installation
instructions provided with your child
restraint system.

[NEVER attach more than one child
restraint to a single tether anchor.
This could cause the anchor or
attachment to come loose or break.

[Do not attach the tether strap to
anything other than the correct
tether anchor. It may not work
properly if attached to something
else.

[Do not use the tether anchors for
adult seat belts or harnesses, or for
attaching other items or equipment
to the vehicle.

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03
ORS031051
To install the tether anchor:
1. Route the child restraint tether strap
over the child restraint seatback.
Route the tether strap under the
head restraint and between the head
restraint posts, or route the tether
strap over the top of the vehicle
seatback. Make sure the strap is not
twisted.
2. Connect the tether strap hook to the
tether anchor, then tighten the tether
strap according to the child seat
manufacturer’s instructions to firmly
secure the child restraint to the seat.
3. Check that the child restraint is
securely attached to the seat by
pushing and pulling the seat forward-
and-back and side-to-side.
Securing a child restraint with lap/
shoulder belt
When not using the LATCH system, all
child restraints must be secured to a
vehicle rear seat with the lap part of a
lap/shoulder belt.
WARNING
ALWAYS place a rear-facing child
restraint in the rear seat of the vehicle.
Placing a rear-facing child restraint in
the front seat can result in serious injury
or death if the child restraint is struck
by an inflating air bag.
ORS031051
Automatic locking mode
Since all passenger seat belts move
freely under normal conditions and
only lock under extreme or emergency
conditions (emergency locking mode),
you must manually pull the seat belt all
the way out to shift the retractor to the
“Automatic Locking” mode to secure a
child restraint.
The “Automatic Locking” mode will
help prevent the normal movement of
the child in the vehicle from causing
the seat belt to loosen and compromise
the child restraint system. To secure a
child restraint system, use the following
procedure.
To install a child restraint system on the
rear seats, do the following:
1. Place the child restraint system on a
rear seat and route the lap/ shoulder
belt around or through the child
restraint, following the restraint
manufacturer’s instructions. Be sure
the seat belt webbing is not twisted.
Information
When using the rear center seat belt, you
should also refer to the “Rear Seat Belt –
Passenger’s 3-point system” section in this
chapter.

3-62
Safety System
Curtain air bags
ORS031066
ORS031076
Curtain air bags are located along both
sides of the roof rails above the front and
rear doors.
They are designed to help protect the
heads of the front seat occupants and
the rear outboard seat occupants in
certain side impact collisions.
The curtain air bags are designed to
deploy during certain side impact
collisions, depending on the crash
severity.For vehicles equipped with a rollover
sensor the side and/or curtain air bags
and pre-tensioners on both sides of
the vehicle may deploy if a rollover or
possible rollover is detected.
The curtain air bags are not designed
to deploy in all side impact or rollover
situations.
WARNING
To reduce the risk of serious injury or
death from an inflating curtain air bag,
take the following precautions:

[All seat occupants must wear
seat belts at all times to help keep
occupants positioned properly.

[Properly secure Child Restraint
System as far away from the door as
possible.

[Do not place any objects over the air
bag. Also, do not attach any objects
around the area the air bag inflates
such as the door, side door glass,
front and rear pillar, roof side rail.

[Do not hang other objects except
clothes, especially hard or breakable
objects.
In an accident, it may cause vehicle
damage or personal injury.

[Do not allow passengers to lean their
heads or bodies onto doors, put their
arms on the doors, stretch their arms
out of the window, or place objects
between the doors and seats.

[Do not attempt to open or repair
the side curtain air bags yourself.
If necessary, have the air back be
inspected by an authorized retailer of
Genesis Branded products.