TOYOTA MIRAI 2018 Owners Manual (in English)

3918-2. Steps to take in an emergency
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When trouble arises
■Emergency tire puncture repair kit
●The sealant stored in the emergency tire puncture repair kit can be used
only once to temporarily repair a single tire. If the sealant h as been used
and needs to be replaced, purchase a new bottle at your Toyota dealer.
The compressor is reusable.
●The sealant can be used when the outside temperature is from -4 0F
(-40 C) to 140 F (60 C).
●The repair kit is exclusively de signed for size and type of tires originally
installed on your vehicle. Do not use it for tires that a diffe rent size than
the original ones, or for any other purposes.
●The sealant has a limited lifespan. The expiry date is shown on the bot-
tle. The sealant should be replaced before the expiry date. Pur chase a
new bottle at your Toyota dealer for replacement.
●If the sealant gets on yo ur clothes, it may stain.
●If the sealant adheres to a wheel or the surface of the vehicle body, the
stain may not be removable if it is not cleaned at once. Immedi ately wipe
away the sealant with a wet cloth.
●During operation of the repair kit, a loud operation noise is produced.
This does not indicate a malfunction.
●Do not use to che ck or to adjust the tire pressure.

3928-2. Steps to take in an emergency
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If the tire is i
nflated to more than the specified air pressure
Disconnect the hose from the valve.
Disconnect the hose from the valv e, remove the air release cap from
the hose and then reconnect the hose.
Turn the compressor switch on and wait for several seconds, then turn
it off. Check that the air pressu re indicator shows the specified air pres-
sure. ( P. 421)
If the air pressure is under the designated pressure, turn the compres-
sor switch on again and repeat the inflation procedure until th e speci-
fied air pressure is reached.
■After a tire is repaired with the emergency tire puncture repai r kit
●The tire pressure warning valve and transmitter should be replaced.
●Even if the tire inflation pressure is at the recommended level, the tire
pressure warning light may come on/flash.
■Note for checking the emergency tire puncture repair kit
Check the sealant expiry date occasionally.
The expiry date is shown on the bottle. Do not use sealant whos e expiry
date has already passed. Otherwise, repairs conducted using the emer-
gency tire puncture repair kit may not be performed properly. Install the air release cap to the end of
the hose and push the protrusion on
the air release cap into the tire valve
to let some air out.
WARNING
■Caution while driving
●Store the repair kit in the trunk.
Otherwise, the repair kit may fl
y out and break in events such as sud-
den braking, and may cause an accident.
●The repair kit is exclusiv ely only for your vehicle.
Do not use repair kit on other vehicles, which could lead to an accident
causing death or serious injury.
●Do not use repair kit for tires that are different size than th e original
ones, or for any other purpose. If the tires have not been comp letely
repaired, it could le ad to an accident causing death or serious injury.

3938-2. Steps to take in an emergency
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When trouble arises
WARNING
■Precautions for use of the sealant
●Ingesting the sealant is hazardous to your health. If you ingest sealant,
consume as much water as possibl e, and then immediately consult a
doctor.
●If sealant gets in eyes or adheres to skin, immediately wash it off with
water. If discomfort persi sts, consult a doctor.
■When fixing the flat tire
●Stop your vehicle in a safe and flat area.
●Do not touch the wheels or the area around the brakes immediate ly
after the vehicle has been driven.
After the vehicle has been driven, the wheels and the area arou nd the
brakes may be extremely hot. Touching these areas with hands, f eet or
other body parts may result in burns.
●Connect the valve and hose securely with the tire installed on the vehi-
cle.
●If the hose is not properly connected to the valve, air leakage may
occur or sealant may be sprayed out.
●Follow the operation procedure to repair the tire. If the proce dures are
not followed, the sealant may spray out.
●If the hose comes off the valve while inflating the tire, there is a risk
that the hose will mo ve abruptly due to air pressure.
●After inflation of the tire has completed, the sealant may spla tter when
the hose is disconnec ted or some air is let out of the tire.
●Keep back from the tire while it is being repaired, as there is a chance
of it bursting while the repair operation is being performed. I f you
notice any cracks or deformation of the tire, turn off the comp ressor
switch and stop the repair operation immediately.
●The repair kit may overheat if operated for a long period of ti me. Do not
operate the repair kit continuous ly for more than 40 minutes.
●Parts of the repair kit become hot during operation. Be careful handling
the repair kit during and after operation. Do not touch the met al part
connecting the bottle and the compressor. I t will be extremely hot.
●Do not attach the vehicle speed warning sticker to an area other than
the one indicated. If the sticker is attached to an area where an SRS
airbag is located, such as the pad of the steering wheel, it ma y prevent
the SRS airbag from operating properly.

3948-2. Steps to take in an emergency
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WARNING
■Driving to spread the liquid sealant evenly
Observe the following precautions to reduce the risk of accidents.
Failure to do so may result in a loss of vehicle control and ca use death
or serious injury.
●Drive the vehicle carefully at a low speed. Be especially caref ul when
turning and cornering.
●If the vehicle does not drive straight or you feel a pull throu gh the
steering wheel, stop the vehi cle and check the following:
• Tire condition. The tire may have separated f rom the wheel.
• Tire inflation pressure. If tire inflation pressure is 19 psi (130 kPa,
1.3 kgf/cm
2 or bar) or less, this may i ndicate severe tire damage.

3958-2. Steps to take in an emergency
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When trouble arises
NOTICE
■When performing an emergency repair
●A tire should only be repaired with the emergency tire puncture repair
kit if the damage is caused by a sharp object such as nail or s crew
passing through the tire tread.
Do not remove the sharp object from the tire. Removing the obje ct may
widen the opening and disenable e mergency repair with the repair kit.
●The repair kit is not waterproof. Make sure that the repair kit is not
exposed to water, such as when it is being used in the rain.
●Do not put the repair kit direct ly onto dusty ground such as sa nd at the
side of the road. If the repair kit vacuums up dust etc., a mal function
may occur.
■Handling the emergency tire puncture repair kit
●The repair kit power source should be 12 V DC suitable for vehi cle
use. Do not connect the repa ir kit to any other source.
●If organic substances such as benzene or gasoline splatters on the
repair kit, the repair kit may deteriorate. Take care not to al low organic
substances to contact it.
●Place the repair kit in a stor age to prevent it from being exposed to dirt
or water.
●Store the repair kit in the assigned place out of reach of chil dren.
●Do not disassemble or modify the repair kit. Do not subject par ts such
as the air pressure indicator to impacts. This may cause a malf unction.
■To avoid damage to the tire pressure warning valves and transmi t-
ters
When a tire is repaired with liqui d sealants, the tire pressure warning
valve and transmitter may not operate properly. If a liquid sea lant is
used, contact your Toyota dealer as soon as possible. After use of liquid
sealant, make sure to replace the tire pressure warning valve a nd trans-
mitter when repairing or replacing the tire. ( P. 333)

3968-2. Steps to take in an emergency
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If the fuel cell system will not start
One of the following may be the cause of the problem:
● The electronic key may not be functioning properly. (P. 398)
● There may not be sufficient f uel in the vehicle’s tank.
Refuel the vehicle.
● The fuel door may be open. ( P. 2 0 1 )
● There may be a mal function in the immobilizer system.
(  P. 72)
● There may be a malfunction i n the shift control system.
* ( P. 378)
● The fuel cell system may be malf unctioning due to an electrical
problem such as electronic key battery depletion or a blown fus e.
However, depending on the type of malfunction, an interim mea-
sure is available to star t the fuel cell system. (P. 177, 397)
● The electronic key may be in battery-saving mode. ( P. 133)
*: It may not be possible to shift the shift position from P to a nother position.
One of the following may be the cause of the problem:
● The 12-volt battery may be discharged. ( P. 401)
● The 12-volt battery terminal conn ections may be loose or corroded.
(  P. 328)
Reasons for the fuel cell system not starting vary depending on
the situation. Check the followi ng and perform the appropriate
procedure:
The fuel cell system will not start even though the correct sta rt-
ing procedure is being followed. ( P. 172)
The interior lights and headlights are dim, or the horn does no t
sound or sounds at a low volume.

3978-2. Steps to take in an emergency
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When trouble arises
One of the following may be the cause of the problem:
● The 12-volt battery may be discharged. ( P. 401)
● One or both of the 12-volt battery terminals may be disconnecte d.
Contact your Toyota dealer if the problem cannot be repaired, o r if repair
procedures are unknown.
When the fuel cell system does not start, the following steps c an be
used as an interim measure to start the fuel cell system if the power
switch is functioning normally.
Do not use this starting procedure except in case of emergency.
Set the parking brake.
Turn the power switch to ACCESSORY mode.
Press and hold the power switch for about 15 seconds while
depressing the brake pedal firmly.
Even if the fuel cell system can be started using the above steps, the
system may be malfunctioning. Hav e the vehicle inspected by your
Toyota dealer.
The interior lights and headlights do not turn on, or the horn
does not sound.
Emergency start function

3988-2. Steps to take in an emergency
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If the electronic key does not operate
properly
■Doors
Use the mechanical key
(  P. 117) in order to perform
the following operations
(driver’s door only):
Locks all doors
Unlocks the door
Turning the key rearward
unlocks the driver’s door. Turn-
ing the key once again unlocks
the other doors.
■
Tr u n k
Turn the mechanical key clock-
wise to open.
If communication between the electronic key and vehicle is
interrupted ( P. 134) or the electronic key cannot be used
because the battery is depleted, the smart key system and wire-
less remote control cannot be used. In such cases, the doors
can be opened and the fuel cell system can be started by follow -
ing the procedure below.
Locking and unlocking the doors

3998-2. Steps to take in an emergency
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When trouble arises
■Key linked functions
Depress the brake pedal.
Touch the power switch with the
Toyota emblem side of the elec-
tronic key facing away from the
switch.
When the electronic key is
detected, a buzzer sounds and the
power switch will turn to ON mode.
When the smart key system is
deactivated in customization set-
ting, the power switch will turn to
ACCESSORY mode.
Firmly depress the brake pedal
and check that message is dis-
played on the multi-information
display.
Press the power switch.
In the event that the fuel cell system still cannot be started, contact
your Toyota dealer.
Closes the windows* (turn and hold)
Opens the windows
* (turn and hold)
*: These settings must be customized at your Toyota dealer. ( P. 437)
Starting the fuel cell system

4008-2. Steps to take in an emergency
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■Stopping the fuel cell system
Shift the shift position to P and press the power switch as you normally do
when stopping the fuel cell system.
■ Replacing the key battery
As the above procedure is a temporary measure, it is recommende d that the
electronic key battery be replaced immediately when the battery is depleted.
( P. 353)
■ Alarm
Using the mechanical key to lock the doors will not set the ala rm system.
If a door is unlocked using the mechanical key when the alarm system is set,
the alarm may be triggered. ( P. 75)
■ When the electronic key does not work properly
●Make sure that the smart key system has not been deactivated in the cus-
tomization setting. If it is off, turn the function on.
(Customizable features P. 436)
● Check if battery-saving mode is set. If it is set, cancel the f unction.
( P. 133)
■ Changing power switch modes
Release the brake pedal and press the power switch in step abo ve.
The fuel cell system does not start and modes will be changed each time the
switch is pressed. ( P. 174)
WARNING
■When using the mechanical key and operating the power windows
Operate the power window after checking to make sure that there is no pos-
sibility of any passenger having any of their body parts caught in the win-
dow.
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 .