2018 HONDA CLARITY FUEL CELL warning

Event Data Recorders
This vehicle is equipped with an event data recorder (EDR).
The main purpose of an EDR is to record, in certain crash or near
crash-like situations, such as an air bag deployment or hitting a
road obstacle, data that will assi st in understanding how a vehicle’s
systems performed. The EDR is designed to record data related
to vehicle dynamics and safety systems for a short period of
time, typically 30 seconds or le ss. The EDR in this vehicle is
designed to record such data as:
• How various systems in your vehicle were operating;
• Whether or not the driver and passenger safety belts were
buckled/fastened;
3WARNING
California Proposition 65 Warning
Operating, servicing and maintaining a
passenger vehicle or off-road vehicle can
expose you to chemicals including engine
exhaust, carbon monoxide, phthalates, and
lead, which are known to the State of
California to cause cancer and birth defects or
other reproductive harm. To minimize
exposure, avoid breathing exhaust, do not
idle the engine except as necessary, service
your vehicle in a well-ventilated area and
wear gloves or wash your hands frequently
when servicing your vehicle. For more
information go to
www.P65Warnings.ca.gov/
passenger-vehicle
.
• How far (if at all) the driver was depressing the accelerator
and/or brake pedal; and,
• How fast the vehicle was traveling.
These data can help provide a better understanding of the
circumstances in which crashes and injuries occur. NOTE: EDR data
are recorded by your vehicle only if a non-trivial crash situation
occurs; no data are recorded by the EDR under normal driving
conditions and no personal data (e.g., name, gender, age, and
crash location) are recorded. Howeve r, other parties, such as law
enforcement, could co mbine the EDR data with the type of
personally identifying data routinely acquired during a crash
investigation.
To read data recorded by an ED R, special equipment is required,
and access to the vehicle or the EDR is needed. In addition to the
vehicle manufacturer, other parties, such as law enforcement, that
have the special equipment, can re ad the information if they have
access to the vehicle or the EDR.
The data belongs to the vehicle ow ner and may not be accessed by
anyone else except as legally requ ired or with the permission of the
vehicle owner.
Service Diagnostic Recorders
This vehicle is equipped with serv ice-related devices that record
information about powertrain perform ance. The data can be used
to verify emissions law requirem ents and/or help technicians
diagnose and solve service problems. It may also be combined with
data from other sources for res earch purposes, but it remains
confidential. Some diagnostic and maintenance information is
uploaded to Honda upon vehicle start up.
18 CLARITY FUEL CELL PPO-31TRT6100.book 0 ページ ２０１７年１１月２１日　火曜日　午後３時３分

Fuel Cell Monitoring System
This vehicle is equipped with a monitoring system that compiles
data about your vehicle and driving conditions and transmits that
data to Honda at regular intervals as determined at the discretion
of Honda. This data includes information on but not limited to the
following:
● Vehicle location, distance driven, warning indicators and
messages, and vehicle speed
● Fuel cell system control and power generation
The system does not record audio or images.
Data collected is used for the sole purposes of technical diagnoses,
preventive maintenance, resear ch and vehicle development.
Neither Honda nor any third party receiving data will use the data
for any other purpose without first obtaining customer
authorization.
18 CLARITY FUEL CELL PPO-31TRT6100.book 2 ページ ２０１７年１１月２１日　火曜日　午後３時３分

A Few Words About Safety
Your safety, and the safety of others, is very important. And
operating this vehicle safely is an important responsibility.
To help you make informed decisions about safety, we have
provided operating procedures and other information on labels and
in this manual. This information al erts you to potential hazards that
could hurt you or others.
Of course, it is not practical or possible to warn you about all the
hazards associated with operating or maintaining your vehicle. You
must use your own good judgment. You will find this impo
rtant safety information in a variety of forms,
including:
● Safety Labels - on the vehicle.
● Safety Messages - preceded by a safety alert symbol
3 and
one of three signal words: DANGER, WARNING , or CAUTION .
These signal words mean:
● Safety Headings - such as Important Safety Precautions.
● Safety Section - such as Safe Driving.
● Instructions - how to use this vehi cle correctly and safely.
This entire book is filled with im portant safety information - please
read it carefully.
3 DANGERYou WILL be KILLED or SERIOUSLY HURT if
you don’t follow instructions.
3 WARNINGYou CAN be KILLED or SERIOUSLY HURT if
you don’t follow instructions.
3CAUTIONYou CAN be HURT if you don’t follow
instructions.
18 CLARITY FUEL CELL PPO-31TRT6100.book 3 ページ ２０１７年１１月２１日　火曜日　午後３時３分

6
Quick Reference Guide
Quick Reference Guide
Visual Index
❙Steering Wheel Adjustments (P 169)
❙ (Vehicle Stability Assist® (VSA ®)
System OFF) Button
(P 413)
❙Road Departure Mitigation (RDM)
Button
(P 386)
❙System Indicators (P 86)
❙Gauges (P 116)
❙Collision Mitigation Braking SystemTM
(CMBSTM) OFF Button (P 435)
❙Head-Up Display Buttons (P 127)
❙Driver Information Interface
(P 119)
❙Navigation System
() See the Navigation System Manual
❙Audio System (P 198)
❙Hazard Warning Button
❙Climate Control System (P 188)
❙Rear Window Defogger (P 166)
❙POWER Button (P 154)
❙Seat Heater Buttons (P 186)
18 CLARITY FUEL CELL PPO-31TRT6100.book 6 ページ ２０１７年１１月２１日　火曜日　午後３時３分

14
Quick Reference Guide
Fuel Cell Vehicle Precautions
Hydrogen-related Components
Fuel cell vehicles have hydrogen-related components such as hydrogen tanks, an FC stack,
and hydrogen pipelines.
Labels with handling warnings are attached to these components.
Hydrogen
Leak
Detection
System
FC StackHydrogen
Leak
Detection
System
Hydrogen Fuel
Receptacle Hydrogen Tanks
Hydrogen Pipelines
Hydrogen-retaining components
●Hydrogen tanks●Hydrogen pipelines●FC stack
Components with a warning label
●Hydrogen tanks●Compressed hydrogen pipeline●Hydrogen fill pipeline●FC stack●Hydrogen ventilation duct
Hydrogen Leak Detection System locations
●In the motor
compartment●Above the hydrogen fuel receptacle Hydrogen Ventilation Duct
a
Label
a Hydrogen Ventilation Duct
Fuel cells consume oxygen when generating
electricity. If the vehicle is left in standby
state in an enclosed area, the air may
become deprived of oxygen, resulting in
asphyxiation of any person(s) in the area.
Make sure the area is well ventilated before
turning the power system on. If the vehicle
is in a garage, keep the door open.
WARNING
Never leave the fuel cell vehicle in standby
state in an enclosed area that has limited
ventilation as there is a risk of oxygen
deprivation.
WARNING
Do not attempt to modify, install, or
disassemble the hydrogen-related
components.
The hydrogen-related components are
filled with hydrogen gas. Removing or
disassembling these components may cause
a hydrogen gas leak which can lead to a fire
or explosion.
If you notice anything unusual about your
vehicle, consult an authorized Honda
Clarity Fuel Cell dealer.
18 CLARITY FUEL CELL PPO-31TRT6100.book 14 ページ ２０１７年１１月２１日　火曜日　午後３時３分

15
Quick Reference Guide
High Voltage Components, High Voltage Cables and High Temperature
Components
Fuel cell vehicles have high voltage components (about 500 V maximum) such as the FC stack, FCVCU, High Voltage battery, power control
unit, high voltage cables (identified by their orange covers), el ectric motor, and high temperature parts such as the radiator. Labels with
handling warnings are attached to these components.
WARNING
This vehicle has high voltage circuits and
parts. Failure to observe the following
precautions can result in burns or electric
shock.
●Do not remove, disassemble, or replace
the high voltage parts, cables (orange) or
their connectors.
●Never touch the High Voltage battery
service plugs.
In an emergency or during maintenance or
repair, the service plugs are removed to cut
off the electric flow from the battery. These
plugs are in contact with the battery and
can cause severe electric shock if not
handled properly.
Only a qualified technician should handle
any electrical equipment. For inspection
and repair, consult an authorized Honda
Clarity Fuel Cell dealer.
12V DC/DC Converter
●A/C Compressor●A/C Heater
Radiator a Air Pump FC Stack b Air Pump Power Control Unit High Voltage Battery
●Electric Motor●Power Control Unit
Labela Radiator Cap b FCVCU and FC Stack
FCVCU b
18 CLARITY FUEL CELL PPO-31TRT6100.book 15 ページ ２０１７年１１月２１日　火曜日　午後３時３分

17
Quick Reference Guide
Hydrogen Leak Detection System
When the power mode is turned to ON, the hydrogen leak detection system is activated. If a
hydrogen gas leak is detected by the hydrogen detector, the hydrogen leak indicator will
come on.
2 Hydrogen Leak Indicator (P90)
Hydrogen Supply/High Voltage Shut-off System
If the FC system is on and the vehicle is involv ed in a crash, depending on the severity of the
impact, the shut-off system will cut off the supply of hydrogen and electricity. In this case, it
is not possible to restart the vehicle.
To restart the FC system, consult an authorized Honda Clarity Fuel Cell dealer.
WARNING
Do not block the hydrogen ventilation
ducts.
The hydrogen tanks, FC stack, and
hydrogen supply components have
ventilation ducts to allow any leaked
hydrogen to escape into the atmosphere. If
the opening of a duct is blocked with snow,
leaves, etc., and a hydrogen leak occurs, the
leaked gas can make its way into the motor
room, where it can ignite, resulting in a fire
or explosion.
Make sure the ducts are free of any
obstructions before activating the power
system.
Do not remove or disassemble a hydrogen
duct: Doing so can lead to a fire or
explosion if a hydrogen gas leak occurs.
Hydrogen
Ventilation Duct
(Above the both
front tires) Hydrogen
Ventilation Duct
(Inside the fuel
lid)
18 CLARITY FUEL CELL PPO-31TRT6100.book 17 ページ ２０１７年１１月２１日　火曜日　午後３時３分

18
Quick Reference Guide
Hydrogen Gas Leak
If a hydrogen gas leak is suspected, follow the recommended actions listed in the
instructions of this owner’s manual. 2 If Hydrogen Gas is Leaking (P511)
WARNING
Since hydrogen gas is highly flammable, a
hydrogen gas leak is extremely dangerous
as the leaked gas, which is dispersed into
the atmosphere, can ignite, resulting in a
fire in which you or someone else can be
serious injured or killed. Keep flammable
materials and liquids away from the vehicle
at all times, especially if a hydrogen gas
leak is detected.
In the case of a hydrogen gas leak, a buzzer
will sound and the hydrogen gas leak
indicator will come on. If you are driving
the vehicle, stop in a safe, well-ventilated
place. Then turn the power mode to OFF
and contact an authorized Honda Clarity
Fuel Cell dealer at once. You should also
display signs warning of the danger and be
aware of and keep away anything that
could ignite the gas.
The system is designed so that in the event
that the vehicle catches fire, the gas inside
the tanks will be released through the tank
valves, thereby ensuring that pressure (due
to heat from the fire) within the tanks does
not build up.
This gas is released toward the rear of the
vehicle in a downward direction. Do not
attempt to extinguish the fire from behind
the vehicle as the exiting gas may ignite
into a flame.
18 CLARITY FUEL CELL PPO-31TRT6100.book 18 ページ ２０１７年１１月２１日　火曜日　午後３時３分