Page 437 of 528
4378-2. Steps to take in an emergency
MIRAI_OM_USA_OM62073U
8
When trouble arises
Remove the rubber stopper
from the compressor.
Connect the power plug to the
power outlet socket. (P. 331)
Connect the bottle to the com-
pressor.
Make sure that the bottle is
securely connected.
6
7
8
Page 438 of 528
4388-2. Steps to take in an emergency
MIRAI_OM_USA_OM62073U
Attach the 2 stickers as shown.
Remove any dirt and moisture
from the wheel before attaching
the sticker.
Check the specified tire inflation
pressure.
Tire inflation pressure is specified
on the label as shown. (P. 4 7 1 )
Start the fuel cell system. ( P. 186)
To inject the sealant and inflate
the tire, turn the compressor
switch on.
9
10
11
12
Page 439 of 528

4398-2. Steps to take in an emergency
MIRAI_OM_USA_OM62073U
8
When trouble arises
Inflate the tire until the specifiedair pressure is reached.
The sealant will be injected
and the pressure will spike to
44 psi (300 kPa, 3.1 kgf/cm
2
or bar) or 58 psi (400 kPa,
4.1 kgf/cm2 or bar), and then
gradually decrease.
The air pressure gauge will
display the actual tire infla-
tion pressure about 1 minute
(15 minutes at low tempera-
ture) after the switch is
turned on.
Inject to specified air pres-
sure.
• Turn the compressor switch off and then check the tire
inflation pressure. Being
careful not to over inflate,
check and repeat the infla-
tion procedure until the
specified tire inflation pres-
sure is reached.
• If the tire inflation pressure is still lower than the specified point
after inflation for 10 minutes ( 40 minutes at low temperature) with
the switch on, the tire is too damaged to be repaired. Turn the
compressor switch off and c ontact your Toyota dealer.
• If the tire inflation pressure exceeds the specified air press ure, let
out some air to adjust the tire inflation pressure. ( P. 471)
13
Page 440 of 528
4408-2. Steps to take in an emergency
MIRAI_OM_USA_OM62073U
With the compressor switch off, disconnect the hose from the valve
on the tire and then pull out the power plug from the power out let
socket.
Some sealant may leak when the hose is removed.
Install the valve cap onto the valve of the emergency repaired tire.
Attach the air release cap to the
end of the hose.
If the air release cap is not
attached, the sealant may leak
and the vehicle may get dirty.
Temporarily store the bottle in t he trunk while it is connected to the
compressor.
To spread the liquid sealant evenly within the tire, immediatel y drive
safely for about 3 miles (5 km) below 50 mph (80 km/h).
After driving for about 3 miles
(5 km), stop your vehicle in a
safe place on a hard, flat sur-
face and remove the air release
cap from the hose before
reconnecting the repair kit.
14
15
16
17
18
19
Page 441 of 528

4418-2. Steps to take in an emergency
MIRAI_OM_USA_OM62073U
8
When trouble arises
Turn the compressor switch on
and wait for several seconds,
and then turn it off. Check the
tire inflation pressure.If the tire inflation pressure is
under 19 psi (130 kPa,
1.3 kgf/cm
2 or bar): The
puncture cannot be repaired.
Contact your Toyota dealer.
If the tire inflation pressure is 19 psi (130 kPa, 1.3 kgf/cm
2 or bar)
or higher, but less than the specified air pressure: Proceed to
step .
If the tire inflation pressure is the specified air pressure: P roceed
to step .
Turn the compressor switch on to inflate the tire until the spe cified
air pressure is reached. Drive for about 3 miles (5 km) and the n
perform step .
Attach the air release cap to the
end of the hose.
If the air release cap is not
attached, the sealant may leak
and the vehicle may get dirty.
Store the bottle in the trunk while it is connected to the comp ressor.
Taking precautions to avoid sudden braking, sudden acceleration
and sharp turns, drive carefully at under 50 mph (80 km/h) to t he
nearest Toyota dealer tire repair or replacement.
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21
22
21
19
22
23
24
Page 442 of 528

4428-2. Steps to take in an emergency
MIRAI_OM_USA_OM62073U
■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 0F
(-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.
Page 443 of 528

4438-2. Steps to take in an emergency
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8
When trouble arises
■If the tire is inflated 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. 471)
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 exclusively 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.
1
2
3
4
Page 444 of 528

4448-2. Steps to take in an emergency
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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.