2020 HONDA CLARITY FUEL CELL Owner's Manual (in English)

415
uuWhen Driving uAgile Handling Assist
Driving
Agile Handling Assist
Lightly brakes each of the front and rear wheels, as needed, when you turn the
steering wheel, and helps support the vehi cle’s stability and performance during
cornering.1 Agile Handling Assist
The agile handling assist ca nnot enhance stability in
all driving situations. You still need to drive and
corner at speeds appropriate for the conditions and
always leave a sufficient margin of safety.
When the VSA ® system indicator comes on and stays
on while driving, the agil e handling assist does not
activate.
You may hear a sound coming from the motor
compartment while the agile handling assist is
activated. This is normal.
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uuWhen Driving uTire Pressure Monitoring System (TPMS)
Driving
Tire Pressure Monitoring System (TPMS)
Instead of directly measuring the pressu re in each tire, the TPMS on this vehicle
monitors and compares the rolling radius and rotational characteristics of each
wheel and tire while you are driving to determine if one or more tires are
significantly under-inflated.
This will cause the low tire pressure/TPMS
indicator to come on and a message to appear
on the driver information interface.
You must start TPMS calibration every time you:
• Adjust the pressure in one or more tires.
• Rotate the tires.
• Replace one or more tires.
Before calibrating the TPMS:
• Set the cold tire pressu re in all four tires.
2Checking Tires P. 468
Make sure:
•The vehicle is at a complete stop.
• The gear position is in
(P.
• The power mode is in ON.
1Tire Pressure Monitoring System (TPMS)
The system does not monitor the tires when driving
at low speed.
Conditions such as low ambient temperature and
altitude change directly a ffect tire pressure and can
trigger the low tire pressure/TPMS indicator to come on.
Tire pressure checked and inflated in:
•Warm weather can beco me under-inflated in
colder weather.
•Cold weather can become over-inflated in warmer
weather.
The low tire pressure/TPMS indicator will not come
on as a result of over inflation.
The TPMS may not function pr operly if tire type and
size are mixed. Make sure to use the same size and
type of tire. 2 Checking and Maintaining Tires P. 468
The low tire pressure/TPMS indicator may come on
with a delay or may not come on at all when:
•You rapidly accelerate, decelerate, or turn the
steering wheel.
•You drive on snowy or slippery roads.
•Tire chains are used.
The low tire pressure/TPMS indicator may come on
under the following conditions:
•There is a heavier and uneve n load on the tires than
the condition at calibration.
•Tire chains are used.
Low Tire Pressure/TPMS
Indicator
■TPMS Calibration
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417
uuWhen Driving uTire Pressure Monitoring System (TPMS)
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 process finishes
automatically.1TPMS 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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418
uuWhen Driving uTire Pressure Monitoring System (TPMS) - Required Federal Explanation
Driving
Tire Pressure Monitoring System (TPMS) - Required
Federal Explanation
Each tire, including the spare (i f provided), should be checked
monthly when cold and inflated to the inflation pressure
recommended by the vehicle manufacturer on the vehicle placard
or tire inflation pressure label.
(If your vehicle has tires of a different size than the size indicated
on the vehicle placard or tire infl ation 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 tire s is significantly under-inflated.
Accordingly, when the low tire pr essure 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-in flated tire causes the tire to
overheat and can lead to tire fail ure. Under-inflation also reduces
fuel efficiency and tire tread li fe, and may affect the vehicle’s
handling and stopping ability.
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uuWhen Driving uTire Pressure Monitoring System (TPMS) - Required Federal Explanation
Driving
Please note that the TPMS is not a substitute for proper tire
maintenance, and it is the driver ’s responsibility to maintain
correct tire pressure, even if un der-inflation has not reached the
level to trigger illumination of th e TPMS low tire pressure telltale.
Your vehicle has also been equi pped with a TPMS malfunction
indicator to indicate when the system is not operating properly.
The TPMS malfunction indicator is combined with the low tire
pressure telltale. When the syst em detects a malfunction, the
telltale will flash fo r approximately one minute and then remain
continuously illumina ted. This sequence will continue upon
subsequent vehicle start-ups as long as the malfunction exists.
When the malfunction indicator is illuminated, the system may
not be able to detect or signal low tire pressure as intended.
TPMS malfunctions may occur for a variety of reasons, including
the installation of replacement or alternate tires or wheels on the
vehicle that prevent the TPMS from functioning properly.
Always check the TPMS malfunction telltale after replacing one or
more tires or wheels on your vehicle to ensure that the
replacement or alternate tires and wheels allow the TPMS to
continue to function properly.
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uuWhen Driving uHigh Voltage Battery
Driving
High Voltage Battery
Because electricity generated by the fuel cells and through regenerative braking
recharges the High Voltage battery, the batte ry does not need to be recharged from
an outside source; however, th e High Voltage battery gradually discharges when the
vehicle is not in use. If allowed to discharge too much, the battery may become
damaged.
If your vehicle is parked for an extended pe riod of time, during storage for example,
periodically recharge the battery to maintain sufficient charge levels. At least once
every three months, turn on the power sy stem, and keep it on for more than 30
minutes to allow the battery to recharge.
Excessive heat can also damage the battery . On hot, sunny days, try to avoid parking
your vehicle under direct sunlight.
If the High Voltage battery becomes full y discharged or damaged and you are
unable to start the FC system as a result , consult an authorized Honda Clarity Fuel
Cell dealer.
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uuWhen Driving uFC System in Extreme Cold-weather Conditions
Continued
Driving
FC System in Extreme Cold-weather Conditions
The FC system may behave differently on co ld days. It may operate a special process
to improve start-up performance and dura bility. Operation noises, purge process
while parked, etc., differ from usual. However, this is not a malfunction.
On cold days, the power output may be temporarily limited if the vehicle is driven at
high vehicle speeds or accelerated sudden ly before the FC system warm-up is
completed. Operate the vehicle looking out for the surrounding traffic until the FC
system reaches full operating temperature.
If the exhaust pipe is blocked, the power system may stop. In especially cold
weather, freezing prevention process wh ile parked may not be able to be
performed. Also, the process cannot be carr y out if the 12-volt battery terminals are
disconnected; consequently, the FC stack (fuel cell body) may deteriorate.
On cold days, the hydrogen gas may be consumed faster than usual.
On cold days, when the power system operates starting/stopping processes or
freezing prevention process while parked, wa ter vapor in the exhaust may appear as
a white mist emitted from the exhaust pipe. This is not a malfunction.
1 FC System in Extreme Cold-weather Conditions
3CAUTION
When the power system operates stopping
process or freezing prevention process
while parked in cold weather, a puddle of
discharged water may form on the ground
and become frozen. Be careful not to slip
on it.
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uuWhen Driving uFC System in Extreme Cold-weather Conditions
422
Driving
On cold days, you may get sprayed with ex haust water if standing behind the vehicle
when:
• The FC system is idling until the READY indicator comes on at power system
start-up.
• The FC system is in the shutdown proces s after it was stopped before warm-up is
completed.
High Voltage battery is warmed up using the air inside the vehicle. If the air
conditioner is not used or a window is open, it may take time to complete warm-up.
As a result, the power output may be limited or the READY indicator may take
longer than usual to turn on.
When the power system is turned on in ex tremely cold temperatures (–4°F [–20°C]),
its standby operation noise may become l ouder than in normal low temperatures.1FC System in Extreme Cold-weather Conditions
It may take a longer time to start in very cold
conditions or may not start at all until temperatures
rise.
If the temperature of the fuel cell or the High Voltage
battery drops below –4°F (– 20°C), the fuel cells will
not operate and, as a result, the vehicle will not start.
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