start stop button HYUNDAI NEXO 2021 User Guide

5-32
Driving your vehicle
When operating
When the ESC is in opera-
tion, the ESC indicator light
blinks:

conditions which may lock the
wheels, you may hear sounds from
the brakes, or feel a corresponding
sensation in the brake pedal. This is
normal and it means your ESC is
active.

cle may not respond to the acceler-
ator as it does under routine condi-
tions.

use when the ESC activates, the
Smart Cruise Control automatically
disengages. The Smart Cruise
Control can be reengaged when the
road conditions allow.See "Smart
cruise control with stop & go sys-
tem" later in this chapter.
ESC OFF condition
To cancel ESC operation :

Press the ESC OFF button briefly.
The ESC OFF indicator light and
message "Traction Control disabled"
will illuminate. In this state, the trac-
tion control function of ESC is dis-
abled, but the brake control function
of ESC still operates.
Press and hold the ESC OFF button
continuously for more than 3 sec-
onds. The ESC OFF indicator light
and message "Traction & Stability
Control disabled" illuminates and a
warning chime sounds. In this state,
both the traction control function of
ESC and the brake control function
of ESC are disabled.
If the POWER button is placed to the
OFF position when ESC is off, ESC
remains off. Upon restarting the vehi-
cle, the ESC will automatically turn
on again.
OFE058142N
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5-36
Driving your vehicle
Hill-Start Assist Control (HAC)
The Hill-Start Assist Control (HAC)
helps prevent the vehicle from rolling
backwards when starting a vehicle
from a stop on a hill. The system
operates the brakes automatically for
approximately 5 seconds and releas-
es the brake after 5 seconds or when
the accelerator pedal is depressed.
Information
• The HAC does not operate when the
gear is in P (Park) or N (Neutral).
• The HAC activates even when the
ESC (Electronic Stability Control) is
off. However, it does not activate,
when the ESC does not operate nor-
mally.
Good Braking Practices
Wet brakes can be dangerous! The
brakes may get wet if the vehicle is
driven through standing water or if it
is washed. Your vehicle will not stop
as quickly if the brakes are wet. Wet
brakes may cause the vehicle to pull
to one side.To dry the brakes, apply the brakes
lightly until the braking action returns
to normal. If the braking action does
not return to normal, stop as soon as
it is safe to do so and call an author-
ized HYUNDAI dealer for assistance.
DO NOT drive with your foot resting
on the brake pedal. Even light, but
constant pedal pressure can result in
the brakes overheating, brake wear,
and possibly even brake failure.
If a tire goes flat while you are driv-
ing, apply the brakes gently and
keep the vehicle pointed straight
ahead while you slow down. When
you are moving slowly enough for it
to be safe to do so, pull off the road
and stop in a safe location.
Keep your foot firmly on the brake
pedal when the vehicle is stopped to
prevent the vehicle from rolling for-
ward.
i
Whenever leaving the vehicle or
parking, always come to a com-
plete stop and continue to
depress the brake pedal. Shift
to the P (Park) position, then
apply the parking brake, and
place the POWER button in the
OFF position.
Vehicles parked with the park-
ing brake not applied or not
fully engaged may roll inadver-
tently and may cause injury to
the driver and others. ALWAYS
apply the parking brake before
exiting the vehicle.
WARNING
Always be ready to depress the
accelerator pedal when starting
off on a incline. The HAC acti-
vates only for approximately 5
seconds.
WARNING

5-80
Driving your vehicle
LKA System Operation
With the POWER button in the ON
position, press the LKA button locat-
ed on the instrument panel on the
lower left hand side of the driver.
The indicator ( ) in the cluster
display will initially illuminate white.
When the indicator(white) activat-
ed in the previous ignition cycle,
the system turns on without any
control.
If you press the LKA button again,
the indicator on the cluster display
will go off.
User Settings mode and if you
continue to drive with your
hands off the steering wheel
after the "Keep hands on steer-
ing wheel" warning message
appears, the system will stop
controlling the steering wheel.
However, if the driver has their
hands on the steering wheel
again, the system will start con-
trolling the steering wheel.
The steering wheel is not con-
tinuously controlled so if the
vehicle speed is at a higher
speed when leaving a lane the
vehicle may not be able to be
controlled by the system. The
driver must always follow the
speed limit when using the
system.
If you attach objects to the
steering wheel, the system
may not assist steering or the
hands off alarm may not work
properly. When you tow a trail-
er, make sure that you turn off
the LKA system.
When you tow a trailer, make
sure that you turn off the LKA
system.
The system detects lane lines
and controls the steering
wheel by a camera, therefore,
if the lane lines are hard to
detect, the system may not
work properly.
Please refer to "Limitations of
the system".
Do not remove or damage the
related parts of LKA system.
You may not hear a warning
sound of LKA system because
of excessive audio sound.
If any other warning sound
such as seat belt warning
chime is already generated,
the Lane Keeping Assist
(LKA) system warning may
not sound.
Do not place objects on the
dashboard that reflects light
such as mirrors, white paper,
etc. The system may malfunc-
tion if the sunlight is reflected.
Always have your hands on the
steering wheel while the LKA
system is activated. Also, when
Active LKA is selected from the
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6-3
What to do in an emergency
If a fire occurs
1. Stop the vehicle, shift gear to the
P(Park) position, engage the park-
ing 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. 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 extin-
guished with the fire extinguisher,
evacuate from the vehicle, call the
fire department, and let them know
the vehicle is a Fuel Cell Electric
Vehicle. Do not come close to the
vehicle until the fire is totally extin-
guished.
Emergency venting of hydro-
gen gas
If the temperature near the safety
valve located at the rear under vehi-
cle is over 230°F (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. The discharge of
hydrogen gas from the vehicle is
flammable and could cause a fire.
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.
Contact an authorized HYUNDAI
dealer immediately.
If the vehicle stalls at a cross-
road or crossing
If the vehicle stalls at a crossroad or
crossing, set the gear in the N
(Neutral) position and then push the
vehicle to a safe place.
6
Do not use water to extinguish a
fire when the vehicle power is
turned on. Serious electric
shock may result.
WARNING

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