2020 TOYOTA MIRAI stop start

932. Fuel cell vehicle
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Fuel cell system
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There is an air intake vent beside
the rear left seat for the purpose
of cooling the traction battery. If
the air intake vent is blocked, it
could lead to a reduction in trac-
tion battery output.
■If a warning light comes on, a warning message is displayed, or the
12-volt battery connection is disconnected
The fuel cell system may not be able to restart.
If the “READY” indicator does not come on, even when the start procedure is
repeated, contact your Toyota dealer.
■ If “Hydrogen Leakage Detected Visit Your Dealer” is displayed on the
multi-information display
A small amount of hydrogen gas may be leaking. Have the vehicle inspected
immediately at the nearest Toyota dealer.
■ If “FC System Shutdown due to Hydrogen Leakage Stop Your Vehicle in
a Safe Place and Contact Your Dealer” is displayed on the multi -informa-
tion display
● Hydrogen gas may be leaking.
When hydrogen gas is leaking or some other malfunction is detected:
P. 98
● The air conditioning system will shut off automatically.
■ Running out of fuel
When the vehicle has run out of fuel and the fuel cell system c annot be
started, refuel the vehicle until the low fuel level warning li ght (P. 420) turns
off before trying to restart. It may not be able to restart if the refueled amount
is too low (less than about 2.7 lb. [1.2 kg]).
Traction battery air intake vent

942. Fuel cell vehicle
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Fuel cell stack
●Depending on the usage environment, the fuel cell power output may
decline over the life of the vehicle. However, this will have almost no effect
on driving performance.
● In the following situations, the fuel cell power output may dec line faster than
normal driving:
• Extended use in areas with high amounts of dust
• Extended use in areas with high levels of sulfur (such as volc anoes or hot
springs).
• Extended use in areas with high concentrations of the following substances:
-Organic solvents, such as paint and thinner
-Amine-related materials such as ammonia
-Chlorinated substances such as salt air and snow-melting agent
However, upon returning to normal environment, the fuel cell po wer output
will recover over time.
• Salt water gets into the air cleaner filter It is recommended to replace the air cleaner filter and clean t he surround-
ing components. Have the vehicle inspected at your Toyota deale r
• The number of times the fuel cell system is started and stoppe d is exces-
sively high
• Extended use in freezing temperatures
■ Hydrogen tanks
●The hydrogen tanks are the high-pressure storage containers that are filled
with compressed hydrogen gas. The vehicle can be refueled at hy drogen
stations.
● The hydrogen tanks have an expiration date. Vehicles with expir ed hydro-
gen tanks must not be driven or refueled until the hydrogen tanks are
replaced. The expiration date is written on the inside of the fuel door. Con-
sult your Toyota dealer.
● When disposing of the hydrogen tanks or the hydrogen tank valve s, consult
your Toyota dealer for details.

1203. Instrument cluster
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Fuel cell system indicator and ECO Score
The output power of the fuel cell system, regeneration level di splay,
and the ECO driving is scored and displayed.
Charge area
Shows that energy is being
recovered via the regenera-
tive brake.
Eco area
Shows that the vehicle is
being driven in an Eco-
friendly manner.
Power area
Shows that an Eco-friendly d riving range is being exceeded.
ECO Score
Displays the driving conditions in 5 stages, which are separate d
in the 3 patterns of ECO Start, ECO Cruise and ECO Stop. Also,
each time the vehicle is stopped , that number is displayed. (The
number for each take off is reset and not counted)
● By maintaining the indicator display in the ECO area or Charge
area, Eco-friendly dr iving is possible.
● Charge area indicates regeneration
* status. Regenerated energy
will be used to charge t he traction battery.
*: When used in this manual, “regeneration” refers to the conversion of
energy created by the movement of the vehicle into electrical e nergy.

1434-2. Opening, closing and locking the doors
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Operation of each component
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Smart key system
●Locks and unloc ks the doors (P. 132)
● Opens the trunk ( P. 1 3 8 )
● Starts and stops the fuel cell system (P. 1 8 6 )
■Antenna location
The following operations can be performed simply by carrying
the electronic key on your person, for example in your pocket.
The driver should always ca rry the electronic key.
Antennas outside the cabin
Antennas inside the cabin
Antenna inside the trunk
Antenna outside the trunk

1484-2. Opening, closing and locking the doors
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The lock sensor may not work properly if it comes into contact with ice,
snow, mud, etc. Clean the lock sensor and attempt to operate it again.
● A sudden approach to the effective range or door handle may prevent the
doors from being unlocked. In this case, return the door handle to the origi-
nal position and check that the doors unlock before pulling the door handle
again.
● If there is another electronic key in the detection area, it ma y take slightly
longer to unlock the doors after the door handle is gripped.
■ When the vehicle is not driven for extended periods
●To prevent theft of the vehicle, do not leave the electronic ke y within 6 ft. (2 m)
of the vehicle.
● The smart key system can be deactivated in advance. ( P. 486)
■ To operate the system properly
●Make sure to carry the electronic key when operating the system . Do not get
the electronic key too close to the vehicle when operating the system from the
outside of the vehicle.
Depending on the position and holding condition of the electronic key, the key
may not be detected correctly and the system may not operate pr operly. (The
alarm may go off accidentally, or the door lock prevention func tion may not
operate.)
● Do not leave the electronic key inside the trunk.
The key confinement prevention function may not operate, depend ing on
the location of the key (close to the emergency tire puncture repair kit, the
inside edge of the trunk), conditions (inside a metal bag, clos e to metallic
objects) and the radio waves in the surrounding area. ( P. 140)
■ If the smart key system does not operate properly
●Locking and unlocking the doors and opening the trunk:
Use the mechanical key. ( P. 449)
● Starting the fuel cell system: P. 450
■ Customization
Settings (e. g. smart key system) can be changed.
(Customizable features: P. 486)
■ If the smart key system has been d eactivated in a customized setting
● Locking and unlocking the doors and opening the trunk:
Use the wireless remote control or mechanical key. ( P. 132, 138, 449)
● Starting the fuel cell system and changing power switch modes: P. 450
● Stopping the fuel cell system: P. 1 8 7

1684-5. Opening and closing the windows
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When the window cannot be opened or closed
When the jam protection function or catch protection function o perates
unusually and the door window cannot be opened or closed, perfo rm the fol-
lowing operations with the power window switch of that door.
● Stop the vehicle. With the power switch in ON mode, within 4 se conds of the
jam protection function or catch protection function activating , continuously
operate the power window switch in the one-touch closing direct ion or one-
touch opening direction so that the door window can be opened a nd closed.
● If the door window cannot be opened and closed even when perfor ming the
above operations, perform the following procedure for function initialization.
Turn the power switch to ON mode.
Pull and hold the power window switch in the one-touch closing direction
and completely close the door window.
Release the power window switch for a moment, resume pulling the
switch in the one-touch closing direction, and hold it there for approxi-
mately 6 seconds or more.
Press and hold the power window switch in the one-touch opening direc-
tion. After the door window is completely opened, continue hold ing the
switch for an additional 1 second or more.
Release the power window switch for a moment, resume pushing th e
switch in the one-touch opening direction, and hold it there fo r approxi-
mately 4 seconds or more.
Pull and hold the power window switch in the one-touch closing direction
again. After the door window is completely closed, continue holding the
switch for a further 1 second or more.
If you release the switch while the window is moving, start aga in from the
beginning. If the window reverses and cannot be fully closed or opened, have
the vehicle inspected by your Toyota dealer.
■ Door lock linked window operation
●The power windows can be opened using the mechanical key.
* (P. 450)
● The power windows can be opened using the wireless remote control.
*
(P. 132)
*: These settings must be customized at your Toyota dealer.
■ Power windows open warning buzzer
The buzzer sounds and a message is shown on the multi-informati on display
in the instrument cluster when the power switch is turned off and the driver’s
door is opened with the power windows open.
■ Customization
Settings (e.g. key linked operation) can be changed.
(Customizable features: P. 488)
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1725-1. Before driving
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Driving the vehicle
P. 1 8 6
With the brake pedal depressed , shift the shift position to D.
(  P. 193)
Check that the shift position indicator shows D.
Release the parking brake. ( P. 2 0 0 )
Gradually release the brake pedal and gently depress the accele ra-
tor pedal to accelerate the vehicle.
With the shift position in D , depress the brake pedal.
If necessary, set the parking brake.
If the vehicle is to be stopped for an extended period of time, shift the shift
position to P. ( P. 194)
With the shift position in D , depress the brake pedal.
Set the parking brake. ( P. 2 0 0 )
Shift the shift position to P. ( P. 194)
Check that the shift position indicator shows P.
Press the power switch to s top the fuel cell system.
Lock the door, making sure that you have the key on your person.
If parking on a hill, block the wheels as needed.
Firmly set the parking brake and then shift the shift position to D.
Gently depress the accelerator pedal.
Release the parking brake.
The following procedures should be observed to ensure safe
driving:
Starting the fuel cell system
Driving
Stopping
Parking the vehicle
Starting off on a steep uphill
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1755-1. Before driving
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Driving
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WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■When starting the vehicle
Always keep your foot on the brake pedal while stopped with the “READY”
indicator is illuminated. This prevents the vehicle from creepi ng.
■ When driving the vehicle
● Do not drive if you are unfamiliar with the location of the brake and accel-
erator pedals to avoid depressing the wrong pedal.
• Accidentally depressing the accelerator pedal instead of the b rake
pedal will result in sudden acceleration that may lead to an ac cident.
• When backing up, you may twist your body around, leading to di fficulty
in operating the pedals. Make sure to operate the pedals proper ly.
• Make sure to keep a correct driving posture even when moving t he
vehicle only slightly. This allows you to depress the brake and accelera-
tor pedals properly.
• Depress the brake pedal using your right foot. Depressing the brake
pedal using your left foot may delay response in an emergency, result-
ing in an accident.
● The driver should pay extra attention to pedestrians when the fuel cell sys-
tem is on. As there are no engine sounds, pedestrians may misju dge the
vehicle’s movement.
● During normal driving, do not turn off the fuel cell system. Tu rning the fuel
cell system off while driving will not cause loss of steering o r braking con-
trol, however, power assist to the steering will be lost. This will make it
more difficult to steer smoothly, so you should pull over and stop the vehi-
cle as soon as it is safe to do so.
In the event of an emergency, such as if it becomes impossible to stop the
vehicle in the normal way: P. 409
● Do not adjust the positions of the steering wheel, the seat, or the inside or
outside rear view mirrors while driving.
Doing so may result in a loss of vehicle control.
● Always check that all passengers’ arms, heads or other parts of their body
are not outside the vehicle.