service HYUNDAI NEXO 2023 Owners Manual

F4
INTRODUCTION
Congratulations, and thank you for choosing HYUNDAI. We are pleased to welcome you to the growing number of
discerning people who drive a HYUNDAI vehicle. We are very proud of the advanced engineering and high-quality
construction of each HYUNDAI we build.
Your Owner's Manual will introduce you to the features and operation of your new HYUNDAI. To become familiar with
your new HYUNDAI, 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 con-
trols 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 recom-
mended that all service and maintenance on your car be performed by an authorized HYUNDAI dealer. HYUNDAI deal-
ers 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 impor-
tant operating, safety and maintenance information.
HYUNDAI AUTO CANADA
Copyright 2020 HYUNDAI Auto Canada Corp. 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 prior written permission of HYUNDAI
Auto Canada Corp.
All trademarks and tradenames owned in Canada by HYUNDAI Auto Canada Corp.Severe vehicle damage may result from the use of poor quality lubricants that do not meet HYUNDAI spec-
ifications. You must always use high quality lubricants that meet the specifications listed on Page 8-6 in the
Vehicle Specifications section of the Owner's Manual.
CAUTION

2-30
Safety system of your vehicle
Pre-tensioner seat belt (Driver and front passenger)
Your vehicle is equipped with driver's and front passenger's Pre-tensioner
Seat Belts (Retractor Pretensioner
and Emergency Fastening Device
System). The purpose of the pre-ten-
sioner is to make sure the seat beltsfit tightly against the occupant's body
in certain frontal or side collision(s).
The Emergency Fastening Device
System may be activated in certain
crashes where the frontal 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 orside collision(s), the pre-tensioner
will activate and pull the seat belt intotighter contact against the occu-
pant's body.
(1) Retractor Pretensioner
The purpose of the retractor pre-tensioner is to make sure that the shoulder belts fit in tightly againstthe occupant's upper body in cer-tain frontal or side collision(s).
(2) Emergency Fastening Device System
The purpose of the Emergency Fastening Device System is to
make sure that the pelvis belts fit
in tightly against the occupant’s
lower body in certain frontal colli-sion(s).
If the system senses excessive ten-
sion on the driver or passenger'sseat belt when the pre-tensioner sys-
tem activates, the load limiter inside
the retractor pre-tensioner willrelease some of the pressure on the
affected seat belt.
Always wear your seat belt and
sit properly in your seat.
Do not use the seat belt if it is
loose or twisted. A loose or
twisted seat belt will not pro-
tect you properly in an acci-dent.
Do not place anything near the
buckle. This may adversely
affect the buckle and cause it
to function improperly.
Always replace your pre-ten-
sioners after activation or anaccident.
NEVER inspect, service, repair
or replace the pre-tensioners
yourself. This must be done by
an authorized HYUNDAI dealer.
Do not hit the seat belt assem-
blies.
WARNING
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2-68
Safety system of your vehicle
Air bags may not inflate if the vehicle collides with objects such as utility
poles or trees, where the point of
impact is concentrated and the colli-
sion energy is absorbed by the vehi-
cle structure.
SRS Care
The SRS is virtually maintenance-
free and there are no parts you can
safely service by yourself. If the SRS
air bag warning light does not illumi-
nate when the POWER button is in
the ON position, or continuously
remains on, have your vehicle imme-
diately inspected by an authorized
HYUNDAI dealer.
Any work on the SRS system, such
as removing, installing, repairing, or
any work on the steering wheel, thefront passenger's panel, front seats
and roof rails must be performed by
an authorized HYUNDAI dealer.Improper handling of the SRS system
may result in serious personal injury.To reduce the risk of serious
injury or death, take the follow-ing precautions:
Do not attempt to modify or disconnect the SRS compo-
nents or wiring, including the
addition of any kind of badges
to the pad covers or modifica-
tions to the body structure.
Do not place objects over or
near the air bag modules on
the steering wheel, instrument
panel, or the front passen-
ger’s panel above the glove
box.
Clean the air bag pad covers
with a soft cloth moistened
with plain water. Solvents or
cleaners could adversely
affect the air bag covers and
proper deployment of the sys-tem.
Always have inflated air bags
replaced by an authorized
HYUNDAI dealer.
WARNING
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3-10
Immobilizer System
The immobilizer system protects
your vehicle from theft. If an improp-
erly coded key (or other device) is
used, the power system is disabled.
When the POWER button is placed
in the ON position, the immobilizersystem indicator should come on
briefly, then go off. If the indicator
starts to blink, the system does not
recognize the coding of the key.
Place the POWER button to the OFF
position, then place the POWER but-ton to the ON position again.
In some circumstances, the vehicle
may not recognize your smart key if
another smart key device is nearby
or a metal object such as a key chain
is causing interference with the
smart key.
If this occurs, your vehicle may not
start. Remove any metal objects or
additional keys near the smart key
before attempting to start the vehicleagain.If the system repeatedly does not
recognize the coding of the key, it is
recommended that you contact your
HYUNDAI dealer. Do not attempt to alter this system or
add other devices to it. Electrical
problems could result that may make
your vehicle inoperable.
The transponder in your key is an
important part of the immobilizer
system. It is designed to give
years of trouble-free service, how-
ever you should avoid exposure to
moisture, static electricity and
rough handling. Immobilizer sys-
tem malfunction could occur. Information
This device complies with Industry
Canada RSS-210 standard.
Operation is subject to the following
three conditions:
1. This device may not cause harmful interference.
2. This device must accept any inter- ference received, including interfer-
ence that may cause undesired
operation.
3. Changes or modifications not expressly approved by the party
responsible for compliance could
void the user's authority to operate
the device.
i
NOTICE
Convenient features of your vehicle
In order to prevent theft of your
vehicle, do not leave spare keys
anywhere in your vehicle. Your
immobilizer password is a cus-
tomer unique password andshould be kept confidential.
WARNING

3-65
Convenient features of your vehicle
Warning and Indicator lights
Information
Make sure that all warning lights are
OFF after starting the vehicle. If any
light is still ON, this indicates a situa-
tion that needs attention.
Ready Indicator
This indicator illuminates :
When the vehicle is ready to be driven.
- ON : Normal driving is possible.
- OFF : Nor mal driving is not possible,
or a problem has occurred.
- Blinking : Emergency driving. When the ready indicator goes OFF
or blinks, there is a problem with the
system. In this case, have your vehi-
cle inspected by an authorized
HYUNDAI dealer.
Service Warning Light
This warning light illuminates :
When the POWER button is in the ON position.
- It illuminates for approximately 3seconds and then goes off.
When there is a problem with relat- ed parts of the fuel cell electric
vehicle control system, such as
sensors, etc.
When the warning light illuminates
while driving, or does not go OFF
after starting the vehicle, have your
vehicle inspected by an authorized
HYUNDAI dealer.
Power Down Warning Light
This warning light illuminates :
When the vehicle power should be limited due to a malfunction with
fuel cell stack.
If the warning light continuously
remains on when the vehicle is in
"READY" state, or comes on dur-
ing driving, this indicates that there
may be a malfunction with the fuel
cell stack. If this occurs, we recom-
mend that you have the vehicle
inspected by an authorized
HYUNDAI dealer.
If the warning light turns on again
when restarting the vehicle after
parking your vehicle on an incline.
NOTICE
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3

3-156
Convenient features of your vehicle
System Maintenance
Cabin air filter
[A] : Outside air, [B] : Recirculated air
[C] : Climate control air filter, [D] : Blower
[E] : Evaporator core, [F] : Heater core The cabin air filter is installed behind
the glove box. It filters the dust or other
pollutants that enter the vehiclethrough the heating and air condition-ing system.
Have the The cabin air filter replaced
by an authorized HYUNDAI dealeraccording to the maintenance sched-
ule.If the vehicle is being driven in
severe conditions such as dusty or
rough roads and/or if transporting
pets or occupants smoke inside the
vehicle, then more frequent cabin airfilter inspections and changes arerequired.
If the air flow rate suddenly decreas-
es, the system should be checked at
an authorized HYUNDAI dealer.
Checking the amount of air con-
ditioner refrigerant and com-
pressor lubricant
When the amount of refrigerant is
low, the performance of the air con-
ditioning is reduced. Overfilling also
reduces the performance of the airconditioning system.
Therefore, if abnormal operation is
found, we recommend that the sys-
tem be inspected by an authorized
HYUNDAI dealer.
It is important that the correct type and amount of oil and refrig-
erant is used. Otherwise, damageto the compressor and abnormal
system operation may occur. To
prevent damage, the air condition-
ing system in your vehicle should
only be serviced by trained and
certified technicians.
NOTICEOIK047401L

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Convenient features of your vehicle
3
Air Conditioning refrigerant label
You can find out which air condition-
ing refrigerant is applied to your vehi-cle on the label located inside of thehood.Each symbols and specification on
the air conditioning refrigerant label
is represented as below:
1. Classification of refrigerant
2. Amount of refrigerant
3. Classification of compressor lubri-
cant
4. Caution
5. Flammable refrigerant
6. To require registered technician to service air conditioning system
7. Service manual
Vehicles equipped with R-1234yf
Since the refrigerant is
mildly flammable andoperated at high pres-
sure, the air condition-
ing system should only
be serviced by trained
and certified techni-
cians. It is important
that the correct type and amount
of oil and refrigerant are used.
All refrigerants should be
reclaimed with proper equipment.
Venting refrigerants directly to the atmosphere is harmful to individu-
als and environment. Failure toheed these warnings can lead toserious injuries.
WARNING
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■ Example

5-123
Driving your vehicle
5
Winter Precautions
Use high quality ethylene glycolcoolant
Your vehicle is delivered with high
quality ethylene glycol coolant in the
cooling system. It is the only type ofcoolant that should be used because
it helps prevent corrosion in the cool-
ing system, lubricates the water
pump and prevents freezing. Be sure
to replace or replenish your coolantin accordance with the maintenance
schedule in chapter 7. Before winter,
have your coolant tested to assure
that its freezing point is sufficient for
the temperatures anticipated during
the winter.
Change to "winter weight" oil ifnecessary
In some climates it is recommended
that a lower viscosity "winter weight"
oil be used during cold weather. See
chapter 8 for recommendations. If
you aren't sure what weight oil you
should use, consult an authorized
HYUNDAI dealer.
Check battery and cables
Winter puts additional burdens on
the battery system. Visually inspect
the battery and cables as described
in chapter 7. The level of charge in
your battery can be checked by an
authorized HYUNDAI dealer or a
service station.
Use approved window washeranti-freeze in system
To keep the water in the window
washer system from freezing, add an
approved window washer anti-freeze
solution in accordance with instruc-
tions on the container. Window wash-
er anti-freeze is available from an
authorized HYUNDAI dealer and
most auto parts outlets. Do not use
coolant or other types of anti-freeze
as these may damage the paint fin-ish.
Do not let your parking brake
freeze
Under some conditions your parking
brake can freeze in the engaged
position. This is most likely to happen
when there is an accumulation of
snow or ice around or near the rear
brakes or if the brakes are wet. If
there is a risk the parking brake may
freeze, apply it only temporarily while
you shift to P (Park) and block therear wheels so the car cannot roll.
Then release the parking brake.

What to do in an emergency
6
Hazard Warning Flasher .......................................6-2
In Case of an Emergency While Driving.............6-2If an accident occurs........................................................6-2
If a fire occurs ...................................................................6-3
Emergency venting of hydrogen gas...........................6-3
If a submersion in water occurs....................................6-3
If the vehicle stalls at a crossroad or crossing .........6-3
If you have a flat tire while driving..............................6-4
If the vehicle stalls while driving...................................6-4
If the Vehicle Will Not Start .................................6-4
If the 12 Volt Battery is Discharged ...................6-5 Before Jump Starting .......................................................6-5
Jump Starting......................................................................6-6
If the Vehicle Overheats .......................................6-9
Tire Pressure Monitoring System (TPMS).......6-11 Check Tire Pressure .......................................................6-11
Tire Pressure Monitoring System ...............................6-12
Low Tire Pressure Telltale ............................................6-13
Low Tire Pressure LCD Display with Position
Indicator.............................................................................6-13 TPMS Malfunction Indicator ........................................6-14
Changing a Tire with TPMS..........................................6-15 If You Have a Flat Tire
(With Tire Mobility Kit) .......................................6-17
Towing ...................................................................6-24
Towing Service .................................................................6-24
Removable Towing Hook ...............................................6-25
Emergency Towing..........................................................6-26

6-2
The hazard warning flasher serves
as a warning to other drivers to exer-
cise extreme caution when approach-
ing, overtaking, or passing your vehi-
cle.
It should be used whenever emer- gency repairs are being made or
when the vehicle is stopped near the
edge of a roadway. To turn the hazard warning flasher
on or off, press the hazard warning
flasher button. The button is located
in the center fascia panel. Both the
left and right turn signal lights will
flash simultaneously.
• The hazard warning flasher oper-
ates whether your vehicle is run- ning or not.
The turn signals do not work when the hazard flasher is on.
If an accident occurs
1. Stop the vehicle, shift gear to the P (Park) position, engage the
parking brake, and turn the vehicle
off.
The flow of hydrogen into the fuel cell stack will be shut off to prevent
the electricity from being generat-ed.
2. Evacuate to the safety place.
3. Call emergency services for help and let them know the vehicle is a
Fuel Cell Electric Vehicle.
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What to do in an emergency
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