HONDA CLARITY FUEL CELL 2021 Owner's Manual (in English)

509
uuIf the 12-Volt Battery Is Dead u
Continued
Handling the Unexpected
4.Connect the other end of the second
jumper cable to the power system
mounting bolt as shown. Do not connect
this jumper cable to any other part of the
vehicle.
5. If your vehicle is connected to another
vehicle, start the assisting vehicle’s engine,
and increase its rpm slightly.
6. Attempt to start your vehicle’s power
system. If it starts up slowly, check that the
jumper cables have good metal-to-metal
contact.
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510
uuIf the 12-Volt Battery Is Dead u
Handling the Unexpected
Once your vehicle’s power system has sta rted, remove the jumper cables in the
following order.
1. Disconnect the jumper cable from your vehicle’s ground.
2. Disconnect the other end of the jumper cable from the booster battery -
terminal.
3. Disconnect the jumper cable from your vehicle’s 12-volt battery + terminal.
4. Disconnect the other end of the jumper cable from the booster battery +
terminal.
Have your vehicle inspected by a nearby service station or an authorized Honda
Clarity Fuel Cell dealer.
■What to Do After the Power System Starts
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511Continued
Handling the Unexpected
Overheating
How to Handle Overheating
If you notice any of the following signs, it is possible that the vehicle is overheating.
• The power system warning indicator has come on and the message Power
System Problem. Stop Driving When Safe has appeared in the driver
information interface.
• Steam is coming out from the motor room.
■First thing to do
1. Immediately park the vehicle in a safe place.
u Change the gear position to
(P and set the parking brake.
2. Turn off all accessories and turn on the hazard warning lights.
u No steam or spray present : Turn off the power system, then open the hood.
u Steam or spray is present : Turn off the power system and wait until it
subsides. Then open the hood.
1 How to Handle Overheating
3WARNING
Steam and spray from an overheated
power system can seriously scald you.
Do not open the hood if steam is coming
out.
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uuOverheating uHow to Handle Overheating
512
Handling the Unexpected
■Next thing to do
Inspect the coolant level, and check the
cooling system components for leaks.u If the coolant level in the reserve tank is
low, add coolant until it reaches the
MAX mark.
u If there is no coolan t in the reserve tank,
check that the radiator is cool. Cover the
expansion tank cap with a heavy cloth
and open the cap. If necessary, add
coolant up to the base of the filler neck,
and put the cap back on.
■Last thing to do
Turn the power system on, if the message Power System Problem. Stop Driving
When Safe disappears from the driver informatio n interface after you have started
the power system, resume driving.
If the message does not disappear, contact an authorized Honda Clarity Fuel Cell
dealer.
1 How to Handle Overheating
If the coolant is leaking, contact an authorized Honda
Clarity Fuel Cell dealer for repairs.
Continuing to drive with the Power System
Problem. Stop Driving When Safe message on the
driver information interf ace may damage the motor.
3WARNING
Removing the expansion tank cap while the
power system is hot can cause the coolant
to spray out, seri ously scalding you.
Always let the motor and radiator cool
down before removing the expansion tank
cap.
3CAUTION
Never pour water or other commercial
coolants into the inve rter coolant reserve
tank. Doing so will cause damage to the
motor.
MAX
Inverter Coolant
Reserve TankMIN
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513Continued
Handling the Unexpected
If Hydrogen Gas is Leaking
How to Handle Leaked Hydrogen Gas
When the hydrogen leak indicator comes on,
hydrogen gas is leaking.
When a hydrogen gas leak is detected, the
warning buzzer sounds, and warning
indicator comes on. Follow the message
displayed on the driver information interface
and contact an authorized Honda Clarity Fuel
Cell dealer.
2 Hydrogen Leak Indicator P. 92
Even when the warning indicator does not
come on, if you notice gas leaking noises or
any other malfunction, immediately stop the
vehicle in a safe, well-ventilated place, turn
the power system off, and immediately
contact an authorized Honda Clarity Fuel Cell
dealer.
■When Hydrogen Gas Leak or Other Malfunction is Detected1 How to Handle Leaked Hydrogen Gas
3WARNING
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, sto p in a safe, well-ventilated
place. Then turn th e power mode to OFF
and contact an author ized 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 catche s 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.
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uuIf Hydrogen Gas is Leaking uHow to Handle Leaked Hydrogen Gas
514
Handling the Unexpected
1How to Handle Leaked Hydrogen Gas
NOTICE
Hydrogen gas is colorless, odorless, very light, and
flammable. Also, its burni ng flame is difficult to
detect by sight.
If a vehicle fire occurs, le aked hydrogen gas may be
ignited. Stay far away from the vehicle call the local
fire department, and repor t that the vehicle has
hydrogen tanks.
To extinguish a vehicle fire, use a large amount of
water, a dry chemical fire extinguisher (Class A, B, or
C), or a carbon dioxide fi re extinguisher. With an
inadequate amounts of wate r, a fire cannot be put
out completely. Never attemp t to extinguish a vehicle
fire with a small amounts of water.
3WARNING
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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515
Handling the Unexpected
Indicator, Coming On/Blinking
If the 12-Volt Battery Charging System Indicator
Comes On
■Reasons for the indicator to come on
Comes on when the 12-volt battery is not being charged.
■What to do when th e indicator comes on
Turn off the climate control system, rear defogger, and other electrical
systems, and immediately contact an authorized Honda Clarity Fuel Cell
dealer for repairs.
1 If the 12-Volt Battery Chargi ng System Indicator Comes On
If you need to stop temporarily, do not turn off the
power system. Restarting the power system may
rapidly discharge the battery.
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516
uuIndicator, Coming On/Blinking uIf the Brake System Indicator (Red) Comes On or Blinks
Handling the Unexpected
If the Brake System Indicator (Red) Comes On or
Blinks
■Reasons for the indicator to come on
• The brake fluid is low.
• There is a malfunction in the brake system.
■What to do when the indicator comes on while driving
Depress the brake pedal lightly to check pedal pressure.
• If normal, check the brake fluid level the next time you stop.
• If abnormal, take immediate action . If necessary, downshift the
transmission to slow the vehicle using regenerative braking.
■Reason for the in dicator to blink
• There is a problem with the electric parking brake system.
■What to do when the indicator blinks
Avoid using the parking brake and ha ve your vehicle checked by an
authorized Honda Clarity Fu el Cell dealer immediately.
If the Electric Power Steeri ng (EPS) System Indicator
Comes On
■Reasons for the indicator to come on
• Comes on when there is a problem with the EPS system.
■What to do when the indicator comes on
Stop the vehicle in a safe place, tu rn off the power system, and turn on
the power system again.
If the indicator re-appears and stays on, immediately have your vehicle
inspected by an authorized Ho nda Clarity Fuel Cell dealer.
1If the Brake System Indicator (Red) Comes On or Blinks
Have your vehicle re paired immediately.
It is dangerous to drive with low brake fluid. If there
is no resistance from the brake pedal, stop
immediately in a safe plac e. If necessary, downshift
the gears.
If the brake system indicator and ABS indicator come
on simultaneously, the elec tronic brake distribution
system is not working. Th is can result in vehicle
instability under sudden braking.
Have your vehicle inspected by an authorized Honda
Clarity Fuel Cell dealer immediately.
If the brake system indicator (red) blinks at the same
time when the brake system indicator (amber) comes
on, the parking br ake may not work.
Avoid using the parking brak e and have your vehicle
checked by an authorized Honda Clarity Fuel Cell
dealer immediately. 2 If the Brake System Indicator (Red) Comes
On or Blinks at the Same Time When the
Brake System Indicator (Amber) Comes On
P. 517
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517
uuIndicator, Coming On/BlinkinguIf the Brake System Indicator (Red) Comes On or Blinks at the Same Time When the Brake System Indicator (Amber) Comes On
Handling the Unexpected
If the Brake System Indicator (Red) Comes On or
Blinks at the Same Time When the Brake System
Indicator (Amber) Comes On
■If the brake system indicator (red) comes on or blinks at the
same time when the brake syst em indicator (amber) comes on,
release the parking brake ma nually or automatically.
2Parking Brake P. 427
•If the brake system indicator (red) continuously illuminates or blinks at
the same time when the brake sy stem indicator (amber) comes on,
stop the vehicle in a safe place, and have it inspected by an authorized
Honda Clarity Fuel Cell dealer immediately.
u Prevents the vehicle from mo ving gear position to
(P.
• If only the Brake System Indicator (R ed) is turned off, avoid using the
parking brake, and have your vehi cle checked by an authorized
Honda Clarity Fuel Cell dealer immediately.
1If the Brake System Indicator (Red) Comes On or Blinks at the Same
Time When the Brake System Indicator (Amber) Comes On
If you apply the parking br ake, you may not be able
to release it.
If the brake system indicator (red) and the brake
system indicator (amber) come on at the same time,
the parking brake is working.
If the brake system indicator (red) blinks at the same
time the brake system indicator (amber) comes on,
the parking brake may not work because it is
checking the system.
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518
uuIndicator, Coming On/Blinking uIf the Low Tire Pressure/TPMS Indicator Comes On or Blinks
Handling the Unexpected
If the Low Tire Pressure/TPMS Indicator Comes On or
Blinks
■Reasons for the indicator to come on or blink
A tire pressure is significantly low. If there is a problem with the TPMS,
the indicator blinks for about one minute, and then stay on.
■What to do when the indicator comes on
Drive carefully and avoid abrupt cornering and hard braking.
Stop your vehicle in a safe place. Ch eck the tire pressure and adjust the
pressure to the specified level. The sp ecified tire pressure is on a label on
the driver side doorjamb. u Calibrate the TPMS after the tire pressure is adjusted.
■What to do when the indica tor blinks, then remains on
Have the tire inspected by an author ized Honda Clarity Fuel Cell dealer
as soon as possible.
1 If the Low Tire Pressure/TPMS Indicator Comes On or Blinks
NOTICE
Driving on an extremely unde rinflated tire can cause
it to overheat. An overheated tire can fail. Always
inflate your tires to the prescribed level.
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