2023 GENESIS G90 recommended

1-2
Introduction
INTRODUCTION
Congratulations, and thank you for choosing this Genesis Branded Vehicle. We are
pleased to welcome you to the growing number of discerning people who drive the
Genesis Branded Vehicle. We are very proud of the advanced engineering and high-
quality construction of each Genesis Branded Vehicle we build.
Your Owner’s Manual will introduce you to the features and operation of your new
Genesis Branded Vehicle. To become familiar with your new Genesis Branded Vehicle,
so that you can fully enjoy it, read this Owner’s Manual carefully before driving your
new vehicle.
This manual contains important safety information and instructions intended to
familiarize you with your vehicle’s controls and safety features so you can safely
operate your vehicle.
This manual also contains information on maintenance designed to enhance safe
operation of the vehicle. It is recommended that all service and maintenance on your
car be performed by an authorized retailer of Genesis Branded products. Retailers of
Genesis Branded products are prepared to provide high-quality service, maintenance
and any other assistance that may be required.
This Owner’s Manual should be considered a permanent part of your vehicle, and
should be kept in the vehicle so you can refer to it at any time. The manual should stay
with the vehicle if you sell it to provide the next owner with important operating, safety
and maintenance information.
GENESIS CUSTOMER CARE
CAUTION
Severe engine and transmission damage may result from the use of poor quality
fuels and lubricants that do not meet Genesis Branded Vehicle specifications. You
must always use high quality fuels and lubricants that meet the specifications listed
on Page 2-12 in the Vehicle Specifications section of the Owner’s Manual.
Copyright 2022 Genesis Customer Care. All rights reserved. No part of this publication
may be reproduced, stored in any retrieval system or transmitted in any form or by any
means without the prior written permission of Genesis Customer Care.

1-5
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

1-6
Introduction
Using Fuel Additives (except Detergent Fuel Additives)
Using fuel additives such as:
-Silicone fuel additive
-Ferrocene (iron-based) fuel additive
-Other metallic-based fuel additives
may result in cylinder misfire, poor acceleration, engine stalling, damage to the
catalyst, or abnormal corrosion, and may cause damage to the engine resulting in a
reduction in the overall life of the powertrain.
-The Malfunction Indicator Lamp (MIL) may illuminate.
NOTICE
Damage to the fuel system or performance problem caused by the use of these fuels
or fuel additives may not be covered by your New Vehicle Limited Warranty.
Gasoline containing MMT
Some gasoline contains harmful manganese-based fuel additives such as MMT
(Methylcyclopentadienyl Manganese Tricarbonyl).
Genesis Branded Vehicle does not recommend the use of gasoline containing MMT.
This type of fuel can reduce vehicle performance and affect your emission control
system.
The malfunction indicator lamp on the cluster may come on.
Detergent Fuel Additives
Genesis Branded Vehicle recommends that you use good quality gasolines treated
with detergent additives such as TOP TIER Detergent Gasoline, which help prevent
deposit formation in the engine. These gasolines will help the engine run cleaner and
enhance performance of the Emission Control System. For more information on TOP
TIER Detergent Gasoline, please go to the website (www.toptiergas.com).
For customers who do not use TOP Tier Detergent Gasoline regularly, and have
problems starting or the engine does not run smoothly, detergent-based fuel additives
that you can purchase separately may be added to the gasoline. If TOP TIER Detergent
Gasoline is not available, one bottle of additive added to the fuel tank at every 8,000
miles or 12 months is recommended.
Additives are available from your authorized retailer of Genesis Branded products
along with information on how to use them. Do not mix other additives.
Operation in foreign countries
If you are going to drive your vehicle in another country, be sure to:

[Observe all regulations regarding registration and insurance.

[Determine that acceptable fuel is available.

2
2. Vehicle Information,
Consumer Information and
Reporting Safety Defects
Exterior Overview (I) ..........................................................................................2-2
Exterior Overview (II) .........................................................................................2-3
Interior overview ............................................................................................... 2-4
Instrument Panel Overview (I) ......................................................................... 2-6
Instrument Panel Overview (II) ......................................................................... 2-7
Engine Compartment ....................................................................................... 2-8
Dimensions ........................................................................................................ 2-9
Engine ................................................................................................................ 2-9
Bulb Wattage .................................................................................................... 2-10
Tires and Wheels ............................................................................................... 2-11
Air Conditioning System .................................................................................. 2-12
Vehicle Weight and Luggage Volume ............................................................ 2-12
Recommended Lubricants and Capacities .................................................... 2-13
Recommended SAE Viscosity Number .....................................................................2-14
Vehicle Identification Number (VIN) .............................................................. 2-15
Vehicle Certification Label .............................................................................. 2-15
Tire Specification and Pressure Label ............................................................ 2-15
Engine Number ................................................................................................ 2-16
Air Conditioner Compressor Label ................................................................. 2-16
Open Source Software Notice ........................................................................ 2-17
Consumer Information .................................................................................... 2-17
Reporting Safety Defects ................................................................................ 2-18

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

2-14
Vehicle Information, Consumer Information and Reporting Safety Defects
Recommended SAE Viscosity Number
CAUTION
Always be sure to clean the area around any filler cap, drain plug, or dipstick before
checking or draining any lubricant. This is especially important in dusty or sandy
areas and when the vehicle is used on unpaved roads. Cleaning the plug and dipstick
areas will prevent dirt and grit from entering the engine and other mechanisms that
could be damaged.
Engine oil viscosity (thickness) has an effect on fuel economy and cold weather
operating (engine start and engine oil flowability). Lower viscosity engine oils can
provide better fuel economy and cold weather performance, however, higher viscosity
engine oils are required for satisfactory lubrication in hot weather. Using oils of any
viscosity other than those recommended could result in engine damage.
When choosing an oil, consider the range of temperature your vehicle will be operated
in before the next oil change. Proceed to select the recommended oil viscosity from
the chart.
Temperature Range for SAE Viscosity Numbers
Temperature°C -30 -20 -10 0 10 20 30 40 50
(°F) -10 0 20 40 60 80 100 120
Engine Oil
0W-30 0W-30
An engine oil displaying this American Petroleum Institute(API)
Certification Mark conforms to the International Lubricant
Specification Advisory Committee (ILSAC). It is recommended
to only use engine oils that uphold this API Certification Mark.

2-15
02
VEHICLE IDENTIFICATION
180%(5
í9,1
î
ORS012020N
A : Frame number
The vehicle identification number (VIN)
is the number used in registering your
vehicle and in all legal matters pertaining
to its ownership, etc.
The number is punched on the floor
under the right front seat. To check the
number, open the cover.
ORS012023N
A : VIN label (if equipped)
The VIN is also on a plate attached to
the top of the left side dashboard. The
number on the plate can easily be seen
through the windshield from outside.
VEHICLE CERTIFICATION
LABEL
ORS011021
The vehicle certification label attached
on the driver’s (or front passenger’s)
side center pillar gives the vehicle
identification number (VIN).
TIRE SPECIFICATION AND
PRESSURE LABEL
ORS012024N
The tires supplied on your new
vehicle are chosen to provide the best
performance for normal driving.
The tire label located on the driver’s
side center pillar gives the tire pressures
recommended for your vehicle.

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.