2019 HONDA CLARITY FUEL CELL fuel pressure

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.
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26
Quick Reference Guide
Instrument Panel (P 85)
Lights On Indicator
System Indicators
12-Volt Battery
Charging System
IndicatorAnti-lock Brake
System (
ABS)
Indicator
Vehicle Stability
Assist®
(VSA®) System
Indicator
VSA ® OFF Indicator Electric Power
Steering (EPS)
System Indicator
Lights Indicators
High Beam Indicator
Seat Belt Reminder
Indicator
System Indicators
System Message
Indicator
Parking Brake and
Brake System
Indicator (Red) Supplemental
Restraint System
Indicator
Gauges (P 116)/Driver Information Interface (P 119)/
Head-Up Display
(P 127)/System Indicators (P 86)
Low Tire Pressure/
TPMS Indicator Turn Signal and
Hazard Warning
Indicators
Speedometer
Automatic Brake Hold
System Indicator Parking Brake and
Brake System
Indicator (Amber)
SPORT
Mode Indicator
Collision Mitigation
Brake System
TM
(CMBSTM) Indicator
Road Departure
Mitigation (RDM)
Indicator
Immobilizer System Indicator/
Security System Alarm Indicator
Automatic Brake Hold
Indicator
Head-Up Display
READY Indicator
POWER SYSTEM
Indicator
Gear Position
Indicator
Fuel Gauge
Driver Information
Interface
High Voltage Battery
Charge Level Gauge
POWER/CHARGE
Gauge
Low Fuel Indicator
Hydrogen Leak
Indicator Adaptive Cruise
Control (ACC) with
Low Speed Follow
(LSF) Indicator
Lane Keeping Assist
System (LKAS)
Indicator
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35
Quick Reference Guide
VSA® On and Off (P 413)
● The Vehicle Stability Assist ® (VSA® ) system
helps stabilize the vehicle during
cornering and helps maintain traction
while accelerating on loose or slippery
road surfaces.
● VSA ® comes on automatically every time
you turn on the power system.
● To partially disable or fully restore VSA ®
function, press and ho ld the button until
you hear a beep.
CMBSTM On and Off
(P 435)
● When a possible collision is likely
unavoidable, the CMBS
TM can help you to
reduce the vehicle speed and the severity
of the collision.
● To turn the CMBS
TM on or off, press and
hold the button until you hear a beep.
Tire Pressure Monitoring
System (TPMS)
(P 415)
● Detects a change in tire conditions and
overall dimensions due to decrease in tire
pressures.
● The TPMS is turned on automatically
every time you turn on the power system.
● A calibration procedure must be
performed when certain conditions arise.
Refueling (P 444)
aSet the power mode
to OFF.
bPress the hydrogen
fuel lid release
button on the
driver’s door to open
the fuel lid.
cRemove the dust cap
inside the hydrogen
fuel lid.
dStart refueling.
Fuel requirement: Compressed hydrogen gas
Hydrogen supply pressure: 70 MP a (10,153 psig) (at 59°F [15°C])
Hydrogen filling amount
*1: Approximately 11 lbs (5 kg) (at 70 MPa)
Hydrogen tanks capacity: 37.3 US gal (141.3 L) (at 70 MPa [10,153 psig])
*1:
A measured value when refueled at a hydrogen station with 70 MPa (10,153
psig) of supply pressure complaint with the SAE (J2601) fueling protocol.
Hydrogen Filling Station: To completely fi ll the hydrogen tank, you need to use a
hydrogen filling station that has an H70 di spenser, which is capable of supplying
pressures of up to 10,153 psig (70 MPa).
Refueling the vehicle is only possible if the pressure inside the hydrogen tank of
the vehicle does not exceed the supp ly pressure of the filling station.
If you use an H35 dispenser, you will be able to fill only half of the tank.
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94
uuIndicators u
Instrument Panel
IndicatorNameOn/BlinkingExplanationMessage
Low Tire
Pressure/TPMS
Indicator
●Comes on for a few seconds when
you set the power mode to ON.
●May come on briefly if the power
mode is set to ON and the vehicle
is not moved within 45 seconds, to
indicate the calibration process is
not yet complete.
●Comes on and stays on when:
-One or more tires’ pressures are
determined to be significantly
low.
- The system has not been
calibrated.
●Comes on while driving - Stop in a safe
place, check tire pressures, and inflate the
tire(s) if necessary.
●Stays on after the tires are inflated to
the recommended pressures - The
system needs to be calibrated.
2 TPMS Calibration P. 415
●Blinks for about one minute, and
then stays on if th ere is a problem
with the TPMS.●Blinks and remains on - Have your
vehicle checked by an authorized Honda
Clarity Fuel Cell dealer.
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363
Driving
This chapter discusses driving and refueling.
Before DrivingDriving Preparation .......................... 364
Maximum Load Limit........................ 367
Towing a Trailer Towing Your Vehicle ........................ 369
When Driving Turning on the Power ...................... 370
Precautions While Driving................. 373
Transmission .................................... 374
Shifting ............................................ 375
SPORT Mode.................................... 381
Acoustic Vehicle Al erting System ...... 382
Front Sensor Camera ....................... 383
Road Departure Mitigation (RDM) System ... 385
Adaptive Cruise Control (ACC) with Low Speed Follow (LSF) ......................... 389
Lane Keeping Assist System (LKAS) .. 405
Vehicle Stability Assist ® (VSA ®), aka
Electronic Stability Control (ESC),
System ....................................... 412
Agile Handling Assist ....................... 414Tire Pressure Monitoring System (TPMS) .. 415Tire Pressure Monitoring System (TPMS) -
Required Federal Explanation ......... 417
High Voltage Battery ........................ 419
FC System in Extreme Cold-weather
Conditions ..................................... 420
LaneWatch
TM................................... 422 Braking
Brake System ................................... 424
Anti-lock Brake System (ABS) ........... 430
Brake Assist System ......................... 431
Collision Mitigation Braking System
TM
(CMBSTM) ....................................... 432
Parking Your Vehicle When Stopped ................................ 440
Multi-View Rear Camera .................. 442
Refueling Fuel Information .............................. 444
How to Refuel ................................. 445
Fuel Economy .................................... 447
Improving Fuel Economy .................. 447
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412
uuWhen Driving uVehicle Stability Assist ® (VSA ®), aka Electronic Stability Control (ESC), System
Driving
Vehicle Stability Assist ® (VSA ®), aka Electronic
Stability Control (ESC), System
VSA ® helps to stabilize the vehicle during cornering if the vehicle turns more or less
than what was intended. It also assists in maintaining traction on slippery surfaces.
It does so by regulating motor output and selectively applying the brakes.
When VSA® activates, you may notice that the
motor do not respond to the accelerator. You
may also notice some noise from the hydraulic
system. You will also see the indicator blink.
■VSA® Operation
1 Vehicle Stability Assist ® (VSA ®), aka Electronic Stability Control
(ESC), System
The VSA ® may not function properl y if tire type and
size are mixed. Make sure to use the same size and
type of tire, and the air pressures as specified.
When the VSA ® system indicator comes on and stays
on while driving, there ma y be a problem with the
system. While this may not interfere with normal
driving, have your vehicle checked by an authorized
Honda Clarity Fuel Ce ll dealer immediately.
VSA ® cannot enhance stability in all driving situations
and does not control the entire braking system. You
still need to drive and corner at speeds appropriate
for the conditions and always leave a sufficient
margin of safety.
The main function of the VSA ® system is generally
known as Electronic Stab ility Control (ESC). The
system also includes a traction control function.
VSA® System
Indicator
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uuWhen Driving uTire Pressure Monitoring System (TPMS)
416
Driving
You can calibrate the system from the
customized feature on the audio/information
screen.
1. Set the power mode to ON.
2. Select .
3. Select Settings .
4. Select Vehicle .
5. Select TPMS Calibration .
6. Select Cancel or Calibrate.
u When the calibration is complete, the
display returns to the customization
menu screen.
• If the Calibration Failed To Start.
message appears, repeat steps 4-6.
• The calibration pr ocess finishes
automatically.1 TPMS Calibration
•The calibration process requires approximately 30
minutes of cumulative dr iving at speeds between
30-65 mph (48-105 km/h).
•During this period, if the power system is turned on
and the vehicle is not moved within 45 seconds,
you may notice the low tire pressure/TPMS
indicator comes on briefl y. This is normal and
indicates that the calibr ation process is not yet
complete.
If tire chains are installed, remove them before
calibrating the TPMS.
If the low tire pressure/TPMS indicator comes on even
when the properly inflated specified regular tires are
installed, have your vehicl e checked by an authorized
Honda Clarity Fuel Cell dealer.
We recommend that the tires be replaced with the
same brand, model, and size as the originals. Ask an
authorized Honda Clarity Fuel Cell dealer for details.
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417
uuWhen Driving uTire Pressure Monitoring System (TPMS) - Required Federal Explanation
Continued
Driving
Tire Pressure Monitoring System (TPMS) - Required
Federal Explanation
Each tire, including the spare (if provided), should be checked
monthly when cold and inflated to the inflation pressure
recommended by the vehicle manufa cturer on the vehicle placard
or tire inflation pressure label.
(If your vehicle has tires of a diff erent size than the size indicated
on the vehicle placard or tire inflation pressure label, you should
determine the proper tire inflat ion pressure for those tires.)
As an added safety feature, your vehicle has been equipped with
a tire pressure monitoring system (TPMS) that illuminates a low
tire pressure telltale
when one or more of your tires is significantly under-inflated.
Accordingly, when the low tire pressure telltale illuminates, you
should stop and check your tires as soon as possible, and inflate
them to the proper pressure.
Driving on a significantly under-inf lated tire causes the tire to
overheat and can lead to tire fail ure. Under-inflation also reduces
fuel efficiency and tire tread life, and may affect the vehicle’s
handling and stopping ability.
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