2021 GENESIS G80 fuel

IntroductionF2
Your Genesis Branded Vehicle should not be modified in any way. Such
modifications may adversely affect the performance, safety or durability of your
Genesis Branded Vehicle and may, in addition, violate conditions of the limited
warranties covering the vehicle. Certain modifications may also be in violation
of regulations established by the U.S. Department of Transportation and other
federal or state agencies.
Your vehicle is equipped with electronic fuel injection and other electronic
components. It is possible for an improperly installed/adjusted two-way radio
or cellular telephone to adversely affect electronic systems. For this reason, we
recommend that you carefully follow the radio manufacturer’s instructions or
consult your authorized retailer of Genesis Branded products for precautionary
measures or special instructions if you choose to install one of these devices.
CAUTION: MODIFICATIONS TO YOUR GENESIS BRANDED VEHICLE
TWO-WAY RADIO OR CELLULAR TELEPHONE INSTALLATION

Introduction
1-2
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 2020 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.

01
1-5
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 96) 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

Introduction
1-6
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.

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02
„„Rear view
The actual shape may differ from the illustration.
ORG3010002L
EXTERIOR OVERVIEW (II)
1. Door .......................................................5-25
2. Fuel filler door .......................................5-73
3. Rear combination lamp .......................9-60
4. Reverse lamp .......................................9-60
5. Trunk .....................................................5-63
6. Trunk open/close button .....................5-63
7. High mounted stop lamp ....................9-60
8. Antenna ...............................................5-125
9. Rear view camera .................................7-111

Vehicle Information, Consumer Information and Reporting Safety Defects
2-12
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.
LubricantVolumeClassification
Engine oil
*1
Recommends 2.5L T-GDI
6.5 US qt. (6.2 ℓ)
SAE 0W-30, API SN PLUS/
SP or ILSAC GF-6
*43.5L T-GDI 7.4 US qt. (7.0 ℓ)
Automatic transmission fluid 9.7 US qt. (9.2 ℓ)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 coolant 2.5L T-GDI
10.1 US qt. (9.6 ℓ)
Mixture of antifreeze and
water (Phosphate-based
Ethylene glycol coolant for
aluminum radiator)
3.5L T-GDI
11.6 US qt. (11 ℓ)
Liquid-cooled
intercooler
coolant 2.5L T-GDI
4.1 US qt. (3.9 ℓ)
3.5L T-GDI 4 US qt. (3.8 ℓ)
Brake fluid
*2As required DOT-4
Front differential oil (AWD)
*30.71±0.026 US qt. (0.67±0.025 ℓ)HYPOID GEAR OIL API GL-5
SAE 75W/85
(SK HK SYN GEAR OIL
75W85 or equivalent)
Rear differential oil
*31.27±0.05 US qt.
(1.2±0.05 ℓ)
Transfer case oil (AWD) 1.11±0.022 US qt.
(1.05±0.021 ℓ) FUCHS ATF 134 MPT
Fuel 2.5L T-GDI
21.9 US gal. (65 ℓ)
Refer to “Fuel
requirements” in chapter 1.
3.5L T-GDI 19.3 US gal. (73 ℓ)
*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 : If the above recommended specification oil is not available, SAE 0W-30 grade synthetic
oil can be used. If mineral oil or semi-synthetic oil is used, it is a severe maintenance
condition in terms of engine oil change
RECOMMENDED LUBRICANTS AND CAPACITIES

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2-13
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 -20-10 010 20 30 4050
(°F) -10020 40 60 80 100120
Engine Oil
*10W-300W-30
*1 : For better fuel economy, it is recommended to use the engine oil of a viscosity grade
SAE 0W-30. However, if the engine oil is not available in your country, select the proper
engine oil using the engine oil viscosity chart.
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.

Instrument Cluster
4
Instrument Cluster ........................................................................\
....................4-4Instrument Cluster Control ........................................................................\
..................4-5
Instrument panel illumination ........................................................................\
...........4-5
Gauges and Meters ........................................................................\
..............................4-5
Speedometer ........................................................................\
.....................................4-5
Tachometer ........................................................................\
.......................................4-6
Engine coolant temperature gauge (for 12.3-inch 3D cluster) ...............................4-6
Fuel gauge
........................................................................\
..........................................4 -7
Outside temperature gauge ........................................................................\
.............4-8
Odometer ........................................................................\
..........................................4-9
Distance to empty ........................................................................\
............................4-9
Fuel economy (for 12.3-inch 3D cluster) ................................................................4-10
Transmission Shift Indicator ........................................................................\
..............4-10
Automatic transmission shift indicator ..................................................................4-10
Warning and Indicator Lights ........................................................................\
.............4-11
Seat belt warning light ........................................................................\
.....................4-11
Air bag warning light ........................................................................\
........................4-11
Parking brake & Brake fluid warning light ...............................................................4-11
Anti-lock Brake System (ABS) warning light ..........................................................4-12
Electronic Brake Force Distribution (EBD) system warning light .........................4-12
Electric Power Steering (EPS) warning light ..........................................................4-13
Charging system warning light ........................................................................\
.......4-13
Engine oil pressure warning light ........................................................................\
...4-14
Engine coolant temperature warning light (for 8-inch cluster) ............................4-14
Low fuel level warning light ........................................................................\
............4-14
Malfunction Indicator Lamp (MIL) ........................................................................\
..4-15
Master warning light ........................................................................\
........................4-15
Electronic Parking Brake (EPB) warning light ........................................................4-16
Low tire pressure warning light ........................................................................\
......4-16
Forward Safety warning light ........................................................................\
..........4-17
Lane Safety indicator light ........................................................................\
..............4-17
All Wheel Drive (AWD) warning light ......................................................................4-17
LED headlight warning light ........................................................................\
............4-18
Icy road warning light ........................................................................\
.....................4-18
Electronic Stability Control (ESC) indicator light ...................................................4-19
Electronic Stability Control (ESC) OFF indicator light ...........................................4-19
4. Instrument Cluster