2021 HYUNDAI NEXO check engine

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Convenient features of your vehicle
Check headlamp FAN
(if equipped)
This warning message is displayed if
there is a problem with headlamp
fan. Have the vehicle inspected by an
authorized HYUNDAI dealer.
Lights Mode
This indicator displays which exterior
light is selected using the lighting
control.
Wiper
This indicator displays which wiper
speed is selected using the wiper
control.
Check Virtual Engine Sound
System
This message is displayed when
there is a problem with the Virtual
Engine Sound System (VESS).
In this case, have your vehicle inspect-
ed by an authorized HYUNDAI dealer.
Check High Beam Assist (HBA)
system (if equipped)
This warning message is displayed if
there is a problem with the High Beam
Assist (HBA) system. Have the vehi-
cle inspected by an authorized
HYUNDAI dealer.
For more details, refer to "High
Beam Assist (HBA) system" in
chapter 3.
Check Forward Collision
Avoidance Assist system
(if equipped)
This warning message is displayed if
there is a problem with the Forward
Collision-Avoidance Assist (FCA)
system. Have the vehicle inspected
by an authorized HYUNDAI dealer.
For more details, refer to "Forward
Collision-Avoidance Assist (FCA)
system" in chapter 5.
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Convenient features of your vehicle
Information
If there is heavy accumulation of snow
or ice on the windshield, defrost the
windshield for about 10 minutes, or
until the snow and/or ice is removed
before using the windshield wipers to
ensure proper operation.
If you do not remove the snow and/or
ice before using the wiper and washer,
it may damage the wiper and washer
system.
AUTO - Automatic Wiper Control
(if equipped)
A rain sensor located near the wind-
shield detects moisture accumula-
tion and controls the wiping cycle
automatically. This mode is designed
to operate the wiper at an appropri-
ate speed depending on the amount
of rainfall. The sensitivity can be var-
ied by turning the adjustment control
(B) located on the wiper stalk. If the
wiper switch is set in AUTO mode
when the ignition switch is in the ON
position, the wiper will operate once
to perform a self-check of the sys-
tem. Set the wiper control to the OFF
position when the windshield wipers
are not required.
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To avoid personal injury from
the windshield wipers, when the
engine is running and the wind-
shield wiper switch is placed in
the AUTO mode:
•Do not touch the upper end of
the windshield glass facing
the rain sensor.
Do not wipe the upper end of
the windshield glass with a
damp or wet cloth.
Do not put pressure on the
windshield glass.
WARNING

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Convenient features of your vehicle
3
Non-operational conditions of
Parking Distance Warning
(Reverse/Forward) system
The Parking Distance Warning
(Reverse/Forward) system may not
operate normally when any of the
following occur:
Moisture is frozen to the sensor.
Sensor is covered with foreign mat-
ter, such as snow or water, or the
sensor cover is blocked.
The Parking Distance Warning
(Reverse/Forward) system may
experience a malfunction when the
following occurs:
Driving on uneven road surfaces
such as unpaved roads, gravel,
bumps, or gradient.
Objects generating excessive noise
such as vehicle horns, loud motor-
cycle engines, or truck air brakes
can interfere with the sensor.
Heavy rain or water spray is present.
Wireless transmitters or mobile
phones are present near the sensor.
The sensor is covered with snow.
Distance
from object Warning indicator
Warning soundWhen driving
forwardWhen driving
rearward
24 ~ 39
(61 ~ 100)Front-Buzzer beeps
intermittently
24 ~ 47
(61 ~ 120)Rear-Buzzer beeps
intermittently
12 ~ 24
(31 ~ 60)FrontBuzzer beeps
frequently
Rear-Buzzer beeps
frequently
12
(30)FrontBuzzer sounds
continuously
Rear-Buzzer sounds
continuously
Types of warning sound and indicator
inches (cm)
Information
• The indicator may differ from the illustration depending on objects or sensors
status. If the indicator blinks, have your vehicle checked by an authorized
HYUNDAI dealer.
• If the audible warning does not sound or if the buzzer sounds intermittently
when shifting into R (Reverse) position, this may indicate a malfunction with
the Parking Distance Warning (Reverse/Forward) system. If this occurs, have
your vehicle checked by an authorized HYUNDAI dealer.
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7
Maintenance
B
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LU
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Checking the Brake Fluid
Level
Check the fluid level in the reservoir
periodically. The fluid level should be
between MAX and MIN marks on the
side of the reservoir.
Before removing the reservoir cap
and adding brake fluid, clean the
area around the reservoir cap thor-
oughly to prevent brake fluid contam-
ination. If the level is low, add the specified
brake fluid to the MAX level. The level
will fall with accumulated mileage.
This is a normal condition associated
with the wear of the brake linings. If
the fluid level is excessively low, have
the brake system checked by an
authorized HYUNDAI dealer.
Do not allow brake fluid to con-
tact the vehicle’s body paint, as
paint damage will result.
Brake fluid, which has been exposed to open air for an
extended time should NEVER be
used as its quality cannot be
guaranteed. It should be dis-
posed of properly.
Do not use the wrong kind of brake fluid. A few drops of min-
eral based oil, such as engine
oil, in your brake system can
damage brake system parts.
Information
Use only the specified brake fluid
(refer to "Recommended Lubricants
and Capacities" in chapter 8).
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NOTICE
If the brake system requires fre-
quent additions of fluid this
could indicate a leak in the
brake system. Have the vehicle
inspected by an authorized
HYUNDAI dealer.
WARNING
Do not allow brake fluid to come
in contact with your eyes. If
brake fluid comes in contact
with your eyes, flush your eyes
with clean water for at least 15
minutes and get immediate
medical attention.
WARNING
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H11
How to Stop the Vehicle
1. Hold down the brake pedal while
the vehicle is parked.
2. While depressing the brake pedal,
shift to P (Park).
3. While depressing the brake pedal,
engage the parking brake.
4. While depressing the brake pedal,
press the Power button and turn
off the vehicle.
5. Check if the " " indicator is
turned OFF on the instrument
cluster.
When the " " indicator is ON
and the gear is in a position other
than P (Park), the driver can acci-
dently depress the accelerator
pedal, causing the vehicle to move
unexpectedly.
Virtual Engine Sound System
The Virtual Engine Sound System
generates engine sound for pedestri-
ans to hear vehicle sound because
there is no sound while the FCEV
vehicle is operating.
• If the vehicle is in the ready ( )
mode and the gear is not in P
(Park),
When the gear is shifted to R
(Reverse), an additional warning
sound will be heard.
•The vehicle is much quieter
while driving than a conven-
tional gasoline-powered vehi-
cle. Be aware of your sur-
roundings and always drive
safely.
After you park the vehicle or
while you are waiting at a traf-
fic light, check whether there
are children or obstacles
around the vehicle.
Check if there is something
behind the vehicle when driv-
ing in reverse. Pedestrians
may not hear the sound of the
vehicle.
CAUTION