2020 Hyundai Ioniq Hybrid fuel

F4
FOREWORD
Thank you for choosing HYUNDAI. We are pleased to welcome you to the growing number of discerning people who
drive HYUNDAIs. The advanced engineering and high-quality construction of each HYUNDAI we build is something of
which we're very proud.
Your Owner's Manual will introduce you to the features and operation of your new HYUNDAI. It is suggested that you read
it carefully because the information it contains can contribute greatly to the satisfaction you receive from your new vehi-
cle.
The manufacturer also recommends that service and maintenance on your vehicle be performed by an authorised
HYUNDAI dealer.
HYUNDAI MOTOR COMPANY
Note :Because future owners will also need the information included in this manual, if you sell this HYUNDAI, please
leave the manual in the vehicle for their use. Thank you.
Copyright 2019 HYUNDAI Motor Company. 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 HYUNDAI
Motor Company.Severe engine and transmission damage may result from the use of poor quality fuels and lubricants that
do not meet HYUNDAI specifications. You must always use high quality fuels and lubricants that meet the
specifications listed on Page 8-6 in the Vehicle Specifications section of this Owner's Manual.
CAUTION

F7
Introduction
NOTICE indicates a situation
which, if not avoided, could result
in vehicle damage.
Unleaded
Your new vehicle is designed to use
only unleaded fuel having an Octane
Rating of RON (Research Octane
Number) 91 or higher. (Do not use
methanol blended fuels)
Your new vehicle is designed to
obtain maximum performance with
UNLEADED FUEL, as well as min-
imise exhaust emissions and spark
plug fouling.NEVER USE LEADED FUEL.
The use of leaded fuel is detrimen-
tal to the catalytic converter and
will damage the engine control
system’s oxygen sensor and
affect emission control.
Never add any fuel system clean-
ing agents to the fuel tank other
than what has been specified (We
recommend that you consult an
authorised HYUNDAI dealer for
details.)
NOTICE
NOTICE
Do not "top off" after the noz-
zle automatically shuts off
when refuelling.
Always check that the fuel cap
is installed securely to pre-
vent fuel spillage in the event
of an accident.
WARNING
CAUTION indicates a hazardous
situation which, if not avoided,
could result in minor or moder-
ate injury.
CAUTION
F FU
UE
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EQ
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S

F8
Introduction
Petrol containing ethanol
Ethanol [E-10], a mixture of petrol
and ethanol (also known as grain
alcohol), is marketed along with or
instead of leaded or unleaded petrol.
Do not use petrol containing more
than 10% ethanol, and do not use
petrol or ethanol containing any
methanol. Either of these fuels may
cause drivability problems and dam-
age to the fuel system, engine con-
trol system and emission control sys-
tem.
Discontinue using ethanol of any
kind if driveability problems occur.
Vehicle damage or driveability prob-
lems may not be covered by the
manufacturer’s warranty if they result
from the use of:
1. Petrol containing more than 10%
ethanol.
2. Petrol or ethanol containing
methanol.
3. Leaded fuel or leaded ethanol.Never use fuel which contains
methanol. Discontinue use of any
gasohol product which impairs
drivability.
Other fuels
Using fuel additives such as:
- Silicone fuel additive
- MMT (Magnanese, Mn) fuel additive
- Ferrocene (iron-based) fuel additive
- Other metallic-based fuel additives
may result in cylinder misfire, poor
acceleration, engine stalling, dam-
age to the catalyst, or abnormal cor-
rosion, and may cause damage to
the engine resulting in a reduction in
the overall life of the powertrain.
Damage to the fuel system or per-
formance problem caused by the
use of these fuels may not be cov-
ered by your New Vehicle Limited
Warranty.
NOTICE
NOTICE

Use of MTBE
HYUNDAI recommends avoiding
fuels containing MTBE (Methyl
Tertiary Butyl Ether) over 15.0% vol.
(Oxygen Content 2.7% weight) in
your vehicle.
Fuel containing MTBE over 15.0%
vol. (Oxygen Content 2.7% weight)
may reduce vehicle performance and
produce vapour lock or hard starting.
Your New Vehicle Limited
Warranty may not cover damage
to the fuel system and any per-
formance problems that are
caused by the use of fuels con-
taining methanol or fuels contain-
ing MTBE (Methyl Tertiary Butyl
Ether) over 15.0% vol. (Oxygen
Content 2.7% weight.)
Do not use methanol
Fuels containing methanol (wood
alcohol) should not be used in your
vehicle.This type of fuel can reduce
vehicle performance and damage
components of the fuel system, engine
control system and emission control
system.
Fuel Additives
HYUNDAI recommends that you use
unleaded petrol which has an
Octane Rating of RON (Research
Octane Number) 91 or higher.
For customers who do not use good
quality petrols, and have problems
starting or the engine does not run
smoothly, one bottle of additive added
to the fuel tank is recommended
according to the maintenance sched-
ule (refer to chapter 7, “Normal
Maintenance Schedule”).
Additives are available from your
authorised HYUNDAI dealer along
with information on how to use them.
Do not mix other additives.
NOTICE
F9
Introduction

1-3
Your vehicle at a glance
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10. Doors ................................................3-12
11. Fuel filler door...................................3-40
12. Rear combination lamp ....................7-66
13. Tailgate .............................................3-38
14. High mounted stop lamp ..................7-70
15. Rear window defroster ..................3-151
16. Reverse/Forward Parking distance
warning system ..............................3-130
Reverse Parking distance warning
system ............................................3-127
17. Rear view monitor ..........................3-125
18. Antenna ..............................................4-2
OAE018002
■Rear view
The actual shape may differ from the illustration.

1-4
Your vehicle at a glance
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1. Door lock/unlock button ....................3-14
2. Outside rearview mirror folding
switch ................................................3-27
3. Outside rearview mirror control
switch ................................................3-26
4. Power window switches ....................3-28
5. Central door lock switch ....................3-15
6. Power window lock switch ................3-31
7. Headlamp levelling device ..............3-115
8. Instrument panel illumination
control switch ......................................3-48
9. Blind-Spot Collision Warning (BCW)
system ..................................................5-71
10. Lane keeping assist (LKA) system....5-99
11. ESC OFF button ..............................5-46
12. Fuel filler door opener ....................3-40
13. 12V battery reset switch ....................6-5
14. Bonnet release lever........................3-37
15. Steering wheel ................................3-21
16. Seat ..................................................2-4
17. Driver position memory system ......3-19
OAEPH019009RThe actual shape may differ from the illustration.

1-9
Your vehicle at a glance
1
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VE
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RV
VI
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(
(I
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11. Doors ................................................3-12
12. Fuel filler door...................................3-42
13. Rear combination lamp ....................7-66
14. Tailgate .............................................3-38
15. High mounted stop lamp ..................7-70
16. Rear window defroster ...................3-151
17. Reverse/Forward Parking Distance
Warning system ..............................3-130
Reverse Parking Distance Warning
system ............................................3-127
18. Rear view monitor ..........................3-125
19. Antenna ..............................................4-2
OAEPH018002
■Rear view
The actual shape may differ from the illustration.

1-10
Your vehicle at a glance
I IN
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RI
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R
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OV
VE
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RV
VI
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LU
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G-
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IN
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BR
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ID
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EH
HI
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CL
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1. Door lock/unlock button ....................3-14
2. Driver position memory system ........3-19
3. Outside rearview mirror folding
switch ................................................3-27
4. Outside rearview mirror control
switch ................................................3-26
5. Central door lock switch ....................3-15
6. Power window lock switch ................3-38
7. Power window switches ....................3-31
8. Headlamp levelling device ..............3-115
9. Instrument panel illumination
control switch ......................................3-48
10. Blind-Spot Collision Warning (BCW)
system................................................5-71
11. VESS (Virtual Engine Sound System)
button ..................................................H30
12. Lane Keeping Assist (LKA) system ..5-99
13. ESC OFF button ..............................5-46
14. Fuel filler door opener ....................3-42
15. AUTO/LOCK mode selection button
16. Scheduled charging deactivation
button ................................................H6
17. Bonnet release lever........................3-37
18. Fuse box ..........................................7-47
19. Steering wheel ................................3-21
20. Seat ..................................................2-4
OAEPH019010RThe actual shape may differ from the illustration.