fuel HYUNDAI NEXO 2020 Manual PDF

H17
Close fuel door before turning
vehicle On
This warning message is displayed
when you turn on the vehicle with
the fuel filler door open. Close the
fuel filler door and turn on the vehicle
again.
Hydrogen tank overfilled due
to hydrogen station error
This warning message is displayed
when the hydrogen tank is over-refu-
eled with the hydrogen due to a prob-
lem of the fueling station.
Turn off the vehicle and then turn on
the vehicle. If the message is dis-
played again, have the vehicle
checked by an authorized HYUNDAI
dealer.Small hydrogen leak possible
This warning message is displayed
when the minor hydrogen leakage is
detected in the vehicle. In this case,
have the vehicle checked by an
authorized HYUNDAI dealer.
If the vehicle has to be stopped due
to the leakage, hydrogen gas leak
warning light (red) will illuminate and
'Hydrogen leak detected. Stop safely
immediately.' message is displayed.
Power limited due to low
hydrogen tank temperature
This warning message is displayed
to protect the battery and fuel cell
system when the temperature of the
hydrogen tanks is low.
If this message is still displayed after
the ambient temperature has
increased enough, have the vehicle
checked by an authorized HYUNDAI
dealer.Hydrogen tank temperature
out of range! Stop safely
immediately
This warning message is displayed
to protect the hydrogen tank system
when the temperature of the hydro-
gen tank is too high or too low.
Turn off the vehicle and stop to let
the temperature of the hydrogen tank
go down.▲ ▲
▲ ▲ ▲
▲
▲ ▲ ▲
▲
If this message is still displayed
after the vehicle is turned off
and stopped for a sufficient
time, we recommend you to
stop driving and have your vehi-
cle immediately inspected by an
authorized HYUNDAI dealer.
WARNING

H18
F FE
EA
AT
TU
UR
RE
ES
S
O
OF
F
F
FC
CE
EV
V
(
(C
CO
ON
NT
T.
.)
)
Hydrogen leak detected. Stop
safely immediately
This warning message is displayed
and the hydrogen gas leak warning
light (red) illuminates when the
hydrogen leakage is detected in the
vehicle. In this case, we recommend
you to stop driving and stop the vehi-
cle immediately at a safe area. Then
turn off the vehicle and have your
vehicle inspected by an authorized
HYUNDAI dealer.
Check hydrogen leak sensor
This warning message is displayed
and the light showing the malfunction
of the hydrogen leakage detection
sensor illuminates when there is a
malfunction with the hydrogen leak-
age detection sensor. In this case,
have the vehicle checked by an
authorized HYUNDAI dealer.
Refueling…
This warning message is displayed
while refueling the vehicle. Do not
turn on the vehicle and wait until the
refueling is complete.Check fuel door sensor
This warning message is displayed
when there is a malfunction with the
sensor located below the fueling inlet
which is used for communicating
with the fueling station. Check and
remove if there is any foreign sub-
stance around the fueling inlet.
If this message is still displayed after
the foreign substance is removed,
have the vehicle checked by an
authorized HYUNDAI dealer.
Open fuel door after turning
vehicle Off
This warning message is displayed
when you try to open the fuel filler
door while the vehicle is turned on.
Turn of the vehicle and open the fuel
filler door. If the message is still dis-
played after a while, have the vehicle
checked by an authorized HYUNDAI
dealer.Replace hydrogen tank.
Maximum number of refill
cycles exceeded
This warning message is displayed
when the number of times refueling
the vehicle exceeds the predefined
number (4,995 times). The fuel cell
system stops operation for safety
even if the vehicle is refueled enough
and when there is no problem with
the vehicle. In this case, have the
hydrogen storage system replaced
by an authorized HYUNDAI dealer.
Power limited due to fuel cell
system error
This warning message is displayed
when there is a malfunction with the
fuel cell system and the power sup-
ply to the fuel cell system is limited.
If the warning light stays on when in
"Ready ( )" state or while driving
the vehicle, this indicates that the
fuel cell system may have failure. In
this case, have the vehicle checked
by an authorized HYUNDAI dealer.
▲ ▲ ▲
▲
▲ ▲ ▲
▲
▲ ▲ ▲
▲ ▲
▲

H19
Check fuel cell system! Stop
safely immediately
This warning message is displayed
when any serious malfunction of the
fuel cell system is detected.
In this case, immediately park the
vehicle at a safe area and turn off the
vehicle. Then turn the vehicle on
again.
If the message is displayed again,
have the vehicle checked by an
authorized HYUNDAI dealer.
Unable to start vehicle! Check
high voltage system
This warning message is displayed
when there is a malfunction with the
high voltage system.
If the vehicle will not turn on, have
the vehicle checked by an authorized
HYUNDAI dealer.Unable to start vehicle.
Hydrogen too low
This warning message is displayed
when the fuel is empty and the vehi-
cle is not turned on. The vehicle will
not turn on and we recommend that
you have your vehicle inspected by
an authorized HYUNDAI dealer.
Check FCEV System! Stop and
turn vehicle Off
This warning message is displayed
when there is a temporary malfunc-
tion with the FCEV system. Stop the
vehicle at a safe area and turn off the
vehicle. Then turn on the vehicle
after a while. If the message is dis-
played again, have the vehicle
checked by an authorized HYUNDAI
dealer.Check 12V battery. Stop safely
and engage parking brake
This warning message is displayed
when the voltage of the auxiliary bat-
tery is low. Stop the vehicle at a safe
area and turn off the vehicle. Then
turn on the vehicle after a while. If the
message is displayed again, have
the vehicle checked by an authorized
HYUNDAI dealer.
Low fuel
This warning message is displayed
when you need to refuel the vehicle.
Refuel the vehicle immediately at a
nearby fueling station.
▲ ▲ ▲
▲
▲ ▲ ▲
▲
▲ ▲ ▲
▲

H21
FCEV mode
Entering FCEV Mode
If you select the "FCEV" menu in the AVN home screen
or the "FCEV" in the menu, you can enter the FCEV
mode.
For details on FCEV Mode, refer to the navigation manu-
al that is provided separately.
FCEV Mode Menu Screen
1. Reachable Range: It shows the reachable range on the
map.
2. Fuel cell monitoring: It shows the battery information
and the power transmission flow between the compo-
nents.
3. ECO Driving: It shows the fuel efficiency information
and environmental contribution.
4. Management : It shows the status of hydrogen tank
(warning alert) and 'FCEV Route' setting.
OFEQ018017NOFEQ018019N
OFEQ018018N

H22
F FE
EA
AT
TU
UR
RE
ES
S
O
OF
F
F
FC
CE
EV
V
(
(C
CO
ON
NT
T.
.)
)
Reachable Range
You can check the reachable range on the screen
Fuel cell monitoring
You can check the FCEV's Start-up status, battery infor-
mation and power transmission flow between the compo-
nents.
OFEQ018020NOFEQ018021L

H23
Hydrogen fuel economy
1. Fuel Efficiency Graph: It shows fuel efficiency informa-
tion of the last 45 minutes.
2. Average Fuel Efficiency (MPGe): It shows the average
fuel efficiency.
3. Initialization: It initializes the fuel efficiency graph infor-
mation.
ECO contribution
You can check the amount of purified air and CO2 reduc-
tion rate.
- Air purification
It shows the amount of air that adult(s) breathe(s) per
day is purified
- CO2 reduction
It shows that the same amount of CO2 exhausted by an
equal class gasoline vehicle is reduced.
OFEQ018022LOFEQ018023N

H24
F FE
EA
AT
TU
UR
RE
ES
S
O
OF
F
F
FC
CE
EV
V
(
(C
CO
ON
NT
T.
.)
)
Management
1. Hydrogen Tank : It shows the temperature, pressure
and status of the hydrogen tank while driving.
2. Warning [Destination unreachable warning]
You can set to have the warning pop up when the vehi-
cle cannot reach the destination with the current
remaining hydrogen fuel.
3. FCEV Route [Display FCEV Route Bar on Map]
You can set to indicate the FCEV route and reachable
range on the map screen.
OFEQ018024N
OFEQ018025N
OFEQ018026N

H26
F FE
EA
AT
TU
UR
RE
ES
S
O
OF
F
F
FC
CE
EV
V
(
(C
CO
ON
NT
T.
.)
)
If you do not start the vehicle imme-
diately after pressing the 12V Battery
Reset switch, the power of 12V bat-
tery is automatically disconnected
after few seconds to save the 12V
battery from additional discharge. If
the 12V battery is disconnected prior
to starting the vehicle, press the 12V
Battery Reset switch again and then
immediately start the vehicle as
explained.
Repeated use of the 12V Battery
Reset switch without a sufficient ON
cycle (30 Min+) may cause over dis-
charge of the 12V battery, which will
prevent the vehicle from starting. If
the 12V battery is over discharged to
a point that the reset does not work,
try to jump-start the vehicle.Information
After starting the vehicle ( indica-
tor on), the 12V battery is being
charged whether the accelerator pedal
is depressed or not.
❈ ❈
For more details regarding the
jump start, refer to the 'Jump star-
ing' in Owner's manual Chapter 6.
Emergency while driving
If an accident occurs
1. Stop the vehicle, put the gear into
the P (Park) position, set the park-
ing brake, and turn the vehicle off
to prevent the hydrogen and cur-
rent from leaking.
The flow of hydrogen into the fuel
cell stack will be shut off to prevent
the current from being generated.
2. Evacuate to the safety place.
3. Call emergency services for help
and let them know the vehicle is a
Fuel Cell Electric Vehicle.
i

H27
If a fire occurs
1. Stop the vehicle, put the gear into
the P(Park) position, set the park-
ing brake, and turn the vehicle off
to prevent the hydrogen and cur-
rent from leaking.
The flow of hydrogen into the fuel
cell stack will be shut off to prevent
the current from being generated.
2. If the fire is small, which can be
extinguished with fire extinguisher,
use carbon dioxide extinguisher.
You can also extinguish the fire
with water when the vehicle power
is turned off.If the fire is too big to be extinguished
with the fire extinguisher, evacuate
from the vehicle, call the fire depart-
ment, and let them know the vehicle
is a Fuel Cell Electric Vehicle. Do not
come close to the vehicle until the
fire is totally extinguished.
Emergency venting of hydrogen
gas
If the temperature near the safety
valve located at the rear under vehi-
cle is over 110°C caused by a fire or
other reasons, the safety valve will
open to vent hydrogen gas. Venting
the hydrogen gas makes a loud
noise because the venting speed is
very fast. Stay well away from the
vehicle. This jet stream of hydrogen
gas could ignite.
If a submersion in water occurs
If your vehicle was flooded and has
soaked carpeting or water on the
flooring, you should not try to start
the vehicle by pressing the POWER
button.
Call an authorized HYUNDAI dealer. Do not use water to extinguish a
fire when the vehicle power is
turned on. Serious electric
shock may result.
WARNING

H29
Hydrogen station
You can search the hydrogen fueling
station and set the station as the
destination in the AVN screen. Select
'Menu-Nearby POI' in the map
screen and select 'Fuel stations' to
see the list of stations. Set the near-
est station as the destination. Check
the station operation status and
opening hours before visiting the sta-
tion.
Fully refueling the vehicle may be
impossible depending on the station
condition and the reachable range
may change accordingly.
Also, the refueling time may vary
depending on the hydrogen fueling
pressure and ambient temperature.
The reachable range may change
according to the driving environment
(weather, traffic, etc.) and driving
method (sudden acceleration, heat-
ing and air conditioning, etc.).
* Refueling the hydrogen gas must
be done by the person who has
completed the certification course
and training related to the high-
pressure gas. Self-refueling is pro-
hibited.