Toyota Mirai (2022 year). Manual in english — page 29
468
8-2. Steps to take in an emergency
1
Remove the cover inside the
trunk.
2
After removing the cover, pull
the lever to unlock the fuel
door and it will be ready to
open as usual.
■
When the electronic key does
not work properly
●
Make sure that the smart key sys-
tem has not been deactivated in
the customization setting. If it is
off, turn the function on.
●
Check if battery-saving mode is
set. If it is set, cancel the function.
(
If the fuel door cannot
be opened
If the fuel door opener
switch cannot be operated,
the following procedure can
be used to open the fuel
door.
Opening the fuel door
If the electronic key
does not operate prop-
erly
If communication between
the electronic key and vehi-
cle is interrupted (
or the electronic key cannot
be used because the battery
is depleted, the smart key
system and wireless remote
control cannot be used. In
such cases, the doors and
trunk can be opened and
the fuel cell system can be
started by following the pro-
cedure below.
NOTICE
■
In case of a smart key system
malfunction or other key-
related problems
Take your vehicle with all the elec-
tronic keys provided with your
vehicle to your Toyota dealer.
469
8-2. Steps to take in an emergency
8
Whe
n tr
ouble
a
rises
■
Locking and unlocking the
door
Use the mechanical key
(
P.120) in order to perform the
following operations:
1
Locks all the doors
2
Unlocks all the doors
■
Locking the door
1
With the door open, push
down the inside lock button.
2
Close the door.
■
Trunk
Turn the mechanical key clock-
wise to open. (
■
Key linked functions
1
Closes the windows (turn and
hold)
2
Opens the windows (turn and
hold)
These settings must be customized
at your Toyota dealer.
Locking and unlocking
the doors, unlocking the
trunk
WARNING
■
When using the mechanical
key and operating the power
windows
Operate the power window after
checking to make sure that there
is no possibility of any passenger
having any of their body parts
caught in the window.
Also, do not allow children to
operate the mechanical key. It is
possible for children and other
passengers to get caught in the
power window.
470
8-2. Steps to take in an emergency
1
With the P shift position
selected, firmly depress the
brake pedal.
2
Touch the Toyota emblem
side of the electronic key to
the power switch.
When the electronic key is
detected, a buzzer sounds and the
power switch will turn to ON.
When the smart key system is
deactivated in customization set-
ting, the power switch will turn to
ACC.
3
Firmly depress the brake
pedal and check that
is
shown on the multi-informa-
tion display.
4
Press the power switch.
In the event that the fuel cell
system still cannot be started,
contact your Toyota dealer.
■
Stopping the fuel cell system
Set the parking brake, shift the shift
position to P and press the power
switch as you normally do when
stopping the fuel cell system.
■
Electronic key battery
As the above procedure is a tempo-
rary measure, it is recommended
that the electronic key battery be
replaced immediately when the bat-
tery is depleted. (
■
Alarm (For Canada)
Using the mechanical key to lock
the doors will not set the alarm sys-
tem. If a door is unlocked using the
mechanical key when the alarm sys-
tem is set, the alarm may be trig-
gered. (
■
Changing power switch modes
Release the brake pedal and press
the power switch in step
3
above.
The fuel cell system does not start
and modes will be changed each
time the switch is pressed. (
Starting the fuel cell sys-
tem
471
8-2. Steps to take in an emergency
8
Whe
n tr
ouble
a
rises
If you have a set of jumper (or
booster) cables and a second
vehicle with a 12-volt battery,
you can jump start your vehicle
by following the steps below.
1
Confirm that the electronic
key is being carried.
When connecting the jumper (or
booster) cables, depending on the
situation, the alarm may activate
and doors locked. (
P.71)
2
Open the hood. Remove the
fuse box cover. (
Push the tabs in and lift the lid off.
3
Open the exclusive jump
starting terminal cover.
4
Connect a positive jumper cable clamp to on your vehicle and
connect the clamp on the other end of the positive cable to on
the second vehicle. Then, connect a negative cable clamp to
on the second vehicle and connect the clamp at the other end of
the negative cable to .
When connecting to an unpainted metallic point
, make the connection
If the 12-volt battery is
discharged
The following procedures
may be used to start the fuel
cell system if the 12-volt
battery is discharged.
You can also call your Toy-
ota dealer or a qualified
repair shop.
Restarting the fuel cell
system
472
8-2. Steps to take in an emergency
after checking the surrounding area. Also, do not make any connections
where parts nearby may interfere.
Exclusive jump starting terminal (your vehicle)
Positive (+) battery terminal (second vehicle)
Negative (-) battery terminal (second vehicle)
Solid, stationary, unpainted metallic point away from the exclusive
jump starting terminal and any moving parts as shown in the illus-
tration
5
Start the engine of the sec-
ond vehicle. Increase the
engine speed slightly and
maintain at that level for
approximately 5 minutes to
recharge the 12-volt battery
of your vehicle.
6
Open and close any of the
doors of your vehicle with the
power switch off.
7
Maintain the engine speed of
the second vehicle and start
the fuel cell system of your
vehicle by turning the power
switch to ON.
8
Make sure the “READY” indi-
cator comes on. If the indica-
tor does not come on, contact
your Toyota dealer.
9
Once the fuel cell system has
started, remove the jumper
cables in the exact reverse
order from which they were
connected.
10
Close the exclusive jump
starting terminal cover and
install the fuse box cover.
Once the fuel cell system starts,
have the vehicle inspected at
your Toyota dealer as soon as
possible.
473
8-2. Steps to take in an emergency
8
Whe
n tr
ouble
a
rises
■
Starting the fuel cell system
when the 12-volt battery is dis-
charged
The fuel cell system cannot be
started by push-starting.
■
To prevent 12-volt battery dis-
charge
●
Turn off the headlights and the
audio system while the fuel cell
system is off.
●
Turn off any unnecessary electri-
cal components when the vehicle
is running at a low speed for an
extended period, such as in heavy
traffic.
■
When the 12-volt battery is
removed or discharged
●
Information stored in the ECU is
cleared. When the 12-volt battery
is depleted, have the vehicle
inspected at your Toyota dealer.
●
Some systems may require initial-
ization. (
●
If the 12-volt battery discharges, it
may not be possible to shift the
shift position to other positions.
In this case, the vehicle cannot be
towed without lifting both rear
wheels because the rear wheels will
be locked.
■
When removing the 12-volt bat-
tery terminals
When the 12-volt battery terminals
are removed, the information stored
in the ECU is cleared. Before
removing the 12-volt battery termi-
nals, contact your Toyota dealer.
■
Charging the 12-volt battery
The electricity stored in the 12-volt
battery will discharge gradually even
when the vehicle is not in use, due
to natural discharge and the drain-
ing effects of certain electrical appli-
ances. If the vehicle is left for a long
time, the 12-volt battery may dis-
charge, and the fuel cell system
may be unable to start. (The 12-volt
battery recharges automatically
while the fuel cell system is operat-
ing.)
■
When recharging or replacing
the 12-volt battery
●
In some cases, it may not be pos-
sible to unlock the doors using the
smart key system when the 12-
volt battery is discharged. Use the
wireless remote control or the
mechanical key to lock or unlock
the doors.
●
The fuel cell system may not start
on the first attempt after the 12-
volt battery has recharged but will
start normally after the second
attempt. This is not a malfunction.
●
The power switch mode is memo-
rized by the vehicle. When the 12-
volt battery is reconnected, the
system will return to the mode it
was in before the 12-volt battery
was discharged. Before discon-
necting the 12-volt battery, turn
the power switch off.
If you are unsure what mode the
power switch was in before the
12-volt battery discharged, be
especially careful when recon-
necting the 12-volt battery.
●
When the 12-volt battery is recon-
nected, start the fuel cell system,
depress the brake pedal, and con-
firm that it is possible to shift into
each shift position.
●
If the battery is removed or the ter-
minals disconnected without oper-
ating the water release function
during cold weather, the vehicle
may not start due to the fuel cell
system being frozen. To prevent
this, operate the water release
function before removing the bat-
tery or disconnecting the termi-
nals. (
■
When replacing the 12-volt bat-
tery
●
Use a Central Degassing type 12-
volt battery (European Regula-
tions).
474
8-2. Steps to take in an emergency
●
Use a 12-volt battery with the
same case size as the previous
12-volt battery and an equivalent
20 hour rate capacity (20HR) or
greater.
• If the sizes differ, the 12-volt bat-
tery cannot be properly secured.
• If the 20 hour rate capacity is low,
even if the time period where the
vehicle is not used is a short time,
the 12-volt battery may discharge
and the fuel cell system may not
be able to start.
●
Use a 12-volt battery with a han-
dle. If a 12-volt battery without a
handle is used, removal is more
difficult.
●
After replacing, firmly attach the
following items to the exhaust hole
of the 12-volt battery.
• Use the exhaust hose that was
attached to the 12-volt battery
before replacing and confirm that
it is firmly connected to the hole
section of the vehicle.
• Use the exhaust hole plug
included with the 12-volt battery
replaced or the one installed on
the 12-volt battery prior to the
replacement. (Depending on the
12-volt battery to be replaced, the
exhaust hole may be plugged.)
Exhaust hole plug
Exhaust hole
Exhaust hose
For details, consult your Toyota
dealer.
WARNING
■
When removing the 12-volt
battery terminals
Always remove the negative (-)
terminal first. If the positive (+) ter-
minal contacts any metal in the
surrounding area when the posi-
tive (+) terminal is removed, a
spark may occur, leading to a fire
in addition to electrical shocks
and death or serious injury.
■
Avoiding 12-volt battery fires
or explosions
Observe the following precautions
to prevent accidentally igniting the
flammable gas that may be emit-
ted from the 12-volt battery:
●
Make sure each jumper cable is
connected to the correct termi-
nal and that it is not unintention-
ally in contact with any other
than the intended terminal.
●
Do not allow the other end of
the jumper cable connected to
the “+” terminal to come into
contact with any other parts or
metal surfaces in the area, such
as brackets or unpainted metal.
●
Do not allow the + and - clamps
of the jumper cables to come
into contact with each other.
●
Do not smoke, use matches,
cigarette lighters or allow open
flame near the 12-volt battery.
■
12-volt battery precautions
The 12-volt battery contains poi-
sonous and corrosive acidic elec-
trolyte, while related parts contain
lead and lead compounds.
Observe the following precautions
when handling the 12-volt battery:
475
8-2. Steps to take in an emergency
8
Whe
n tr
ouble
a
rises
WARNING
●
When working with the 12-volt
battery, always wear safety
glasses and take care not to
allow any battery fluids (acid) to
come into contact with skin,
clothing or the vehicle body.
●
Do not lean over the 12-volt bat-
tery.
●
In the event that battery fluid
comes into contact with the skin
or eyes, immediately wash the
affected area with water and
seek medical attention. Place a
wet sponge or cloth over the
affected area until medical
attention can be received.
●
Always wash your hands after
handling the 12-volt battery sup-
port, terminals, and other bat-
tery-related parts.
●
Do not allow children near the
12-volt battery.
■
After recharging the 12-volt
battery
Have the 12-volt battery
inspected at your Toyota dealer
as soon as possible.
If the 12-volt battery is deteriorat-
ing, continued use may cause the
12-volt battery to emit a malodor-
ous gas, which may be detrimen-
tal to the health of passengers.
■
When replacing the 12-volt
battery
●
When the vent plug and indica-
tor are close to the hold down
clamp, the battery fluid (sulfuric
acid) may leak.
●
For information regarding 12-
volt battery replacement, con-
tact your Toyota dealer.
●
After replacing, securely attach
the exhaust hose and exhaust
hole plug to the exhaust hole of
the replaced 12-volt battery. If
not properly installed, gases
(hydrogen) may leak into the
vehicle interior, and there is the
possible danger of the gas ignit-
ing and exploding.
NOTICE
■
When handling jumper cables
When connecting the jumper
cables, ensure that they do not
become entangled in the cooling
fan.
■
To prevent damaging the
vehicle
The exclusive jump starting termi-
nal is to be used when charging
the 12-volt battery from another
vehicle in an emergency. It cannot
be used to jump start another
vehicle.
476
8-2. Steps to take in an emergency
Label
Fuel cell stack coolant reservoir
Inverter coolant reservoir
If your vehicle overheats
The following may indicate that your vehicle is overheating.
The high coolant temperature warning light (
P.442) comes on
or flashes, or a loss of fuel cell system power is experienced.
(For example, the vehicle speed does not increase.)
The fuel cell system overheat warning light (
P.442) comes on
Steam comes out from under the hood.
Parts name for cooling components
477
8-2. Steps to take in an emergency
8
Whe
n tr
ouble
a
rises
If the high coolant tempera-
ture warning light comes on or
flashes
1
Stop the vehicle in a safe
place and turn off the air con-
ditioning system, and then
stop the fuel cell system.
2
If you see steam:
Carefully lift the hood after
the steam subsides.
If you do not see steam:
Carefully lift the hood.
3
After the fuel cell system has
cooled down sufficiently,
inspect the hoses and radia-
tor core (radiator) for any
leaks.
Electric cooling fan
Fuel cell stack coolant radia-
tor
If a large amount of coolant leaks,
immediately contact your Toyota
dealer.
4
The fuel cell stack coolant
level is satisfactory if it is
between the “MAX” and
“MIN” lines on the reservoir.
Fuel cell stack coolant reser-
voir
“MAX” line
“MIN” line
If the amount of fuel cell stack
coolant is low:
Immediately contact your Toyota
dealer.
NOTICE
■
Fuel cell stack coolant
The fuel cell stack coolant is
exclusive for fuel cell stack usage.
Damage may occur when water
or any other type of coolant is
used, so never use any other
fluid. If the fuel cell stack coolant
is low, immediately contact your
Toyota dealer.
Correction procedures
478
8-2. Steps to take in an emergency
If the amount of fuel cell stack
coolant is not low:
Have the vehicle inspected at
the nearest Toyota dealer.
Even if the fuel cell stack cool-
ant is low, do not refill it.
If the fuel cell system over-
heat warning light comes on
1
Stop the vehicle in a safe
place and turn off the air con-
ditioning system, and then
stop the fuel cell system.
2
If you see steam or coolant
leaks:
Carefully lift the hood after
the steam subsides.
If you do not see steam or
coolant leaks:
Carefully lift the hood.
3
After the fuel cell system has
cooled down, inspect the
hoses and radiator core (radi-
ator) for any leaks.
Electric cooling fan
Inverter coolant radiator
If a large amount of coolant leaks,
immediately contact your Toyota
dealer.
4
The inverter coolant level is
satisfactory if it is between
the “MAX” and “MIN” lines on
the reservoir.
Inverter coolant reservoir
“MAX” line
“MIN” line
5
Add inverter coolant if neces-
sary.
Water can be used in an emer-
gency if inverter coolant is unavail-
479
8-2. Steps to take in an emergency
8
Whe
n tr
ouble
a
rises
able.
6
Start the fuel cell system and
turn the air conditioning sys-
tem on to check that the radi-
ator cooling fan operate and
to check for coolant leaks
from the radiator or hoses.
The fan operate when the air condi-
tioning system is turned on immedi-
ately after a cold start. Confirm that
the fan is operating by checking the
fan sound and air flow. If it is diffi-
cult to check these, turn the air con-
ditioning system on and off
repeatedly.
(The fan may not operate in freez-
ing temperatures.)
7
If the fan is not operating:
Stop the fuel cell system
immediately and contact your
Toyota dealer.
If the fan is operating:
Have the vehicle inspected at
the nearest Toyota dealer.
WARNING
■
When inspecting under the
hood of your vehicle
Observe the following precau-
tions.
Failure to do so may result in seri-
ous injury such as burns.
●
If steam is seen coming from
under the hood, do not open the
hood until the steam has sub-
sided. The fuel cell unit com-
partment may be very hot.
●
Even if fuel cell system has
stopped, the cooling fan may
begin to move suddenly.
Do not touch or approach the
rotating parts of the fan. Doing
so may lead to fingers, clothes
or tools getting caught, resulting
in injury.
●
Do not loosen the coolant reser-
voir caps or radiator cap, while
the fuel cell system and radiator
are hot.
High temperature steam or
coolant could spray out.
NOTICE
■
When inverter coolant
Add coolant slowly after the fuel
cell system has cooled down suffi-
ciently. Adding inverter cool cool-
ant to a hot fuel cell system too
quickly can cause damage to the
fuel cell system.
■
To prevent damage to the
cooling system
Observe the following precau-
tions:
●
Avoid contaminating the coolant
with foreign matter (such as
sand or dust etc.).
●
Do not use any coolant additive
with inverter coolant.
●
For replacement of the fuel cell
stack coolant, contact your Toy-
ota dealer.
●
Do not use water or any other
coolant when refilling the fuel
cell stack coolant. Also, do not
use any additive agents for the
coolant.
480
8-2. Steps to take in an emergency
1
Set the parking brake and
stop the fuel cell system.
2
Remove the mud, snow or
sand from around the rear
wheels.
3
Place wood, stones or some
other material under the rear
wheels to help provide trac-
tion.
4
Restart the fuel cell system.
5
Shift the shift position to D or
R and release the parking
brake. Then, while exercising
caution, depress the acceler-
ator pedal.
■
When it is difficult to free the
vehicle
Press the
switch to turn off
TRAC.
“Traction Control Turned Off”
If the vehicle becomes
stuck
Carry out the following pro-
cedures if the tires spin or
the vehicle becomes stuck
in mud, dirt or snow:
Recovering procedure
WARNING
■
When attempting to free a
stuck vehicle
If you choose to push the vehicle
back and forth to free it, make
sure the surrounding area is clear
to avoid striking other vehicles,
objects or people. The vehicle
may also lunge forward or lunge
back suddenly as it becomes free.
Use extreme caution.
■
When shifting the shift posi-
tion
Be careful not to shift the shift
position with the accelerator pedal
depressed.
This may lead to unexpected
rapid acceleration of the vehicle
that may cause an accident
resulting in death or serious injury.
NOTICE
■
To avoid damaging the trans-
mission and other compo-
nents
●
Avoid spinning the rear wheels
and depressing the accelerator
pedal more than necessary.
●
If the vehicle remains stuck
even after these procedures are
performed, the vehicle may
require towing to be freed.
481
9
9
Vehicle
specifications
Vehicle specifications
9-1. Specifications
Maintenance data (fuel, fluid
level, etc.). . . . ..
Tire information . . ...
9-2. Customization
Customizable features
9-3. Initialization
Items to initialize . . .
482
9-1. Specifications
9-1.Specifications
*1
:Unladen vehicles
*2
:Vehicles without electronic sunshade
*3
:Vehicles with electronic sunshade
■
Vehicle identification num-
ber
The vehicle identification num-
ber (VIN) is the legal identifier
for your vehicle. This is the pri-
mary identification number for
your Toyota. It is used in regis-
tering the ownership of your
vehicle.
This number is stamped on the
top left of the instrument panel.
This number is also stamped
under the right-hand front seat.
Maintenance data (fuel, fluid level, etc.)
Dimensions and weight
Overall length
195.9 in. (4975 mm)
Overall width
74.2 in. (1885 mm)
Overall height
*1
57.9 in. (1470 mm)
*2
58.3 in. (1480 mm)
*3
Wheelbase
115.0 in. (2920 mm)
Tread
*1
Front
63.4 in. (1610 mm)
Rear
63.2 in. (1605 mm)
Vehicle capacity weight
(Occupants + luggage)
835 lb. (380 kg)
Seating capacity
Seating capacity
5 (Front 2, Rear 3)
Vehicle identification
483
9-1. Specifications
9
Vehicle
specifications
This number is also on the Certi-
fication Label.
*1
:H2 quality standard:
EN 17124 (European standard for EU27 countries)
ISO 14687 Grade D (European standard)
SAE J2719 (US standard)
*2
:This is the maximum possible fill amount. The actual fuel amount
achieved at hydrogen stations may be different due to station capacity or
station settings.
*3
:For models of JPD20L-CEDSSA
*5
and JPD20L-CEDHSA
*5
*4
:For models of JPD20L-CEDBSA
*5
*5
:The model code is indicated on the manufacturer’s plate or label.
(
Fuel
Fuel type
Compressed hydrogen gas
*1
Nominal working pressure
10150 psi (70 MPa, 714 kgf/cm
2
, 700
bar)
Hydrogen tanks’ fuel capacity (Refer-
ence)
37.5 gal. (142.2 L, 31.2 Imp.gal.)
(Approximately 12.6 lb. [5.7
kg.]
*2
)
*3
30.8 gal. (116.9 L, 25.7 Imp.gal.)
(Approximately 10.4 lb. [4.7
kg.]
*2
)
*4
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