Page 358 of 528

3587-1. Maintenance and care
MIRAI_OM_USA_OM62073U
NOTICE
■Cleaning detergents
● Do not use the following types of detergent, as they may discol or the vehi-
cle interior or cause streaks or damage to painted surfaces:
• Non-seat portions: Organic substances such as benzene or gasol ine,
alkaline or acidic solutions, dye, and bleach
• Seats: Alkaline or acidic solutions, such as thinner, benzene, and alco-
hol
● Do not use a polish wax or polish cleaner. The instrument panel’s or other
interior part’s painted surface may be damaged.
■ Preventing damage to leather surfaces
Observe the following precautions to avoid damage to and deterioration of
leather surfaces:
● Remove any dust or dirt from leather surfaces immediately.
● Do not expose the vehicle to direct sunlight for extended perio ds of time.
Park the vehicle in the shade, especially during summer.
● Do not place items made of vinyl, plastic, or containing wax on the uphol-
stery, as they may stick to the leather surface if the vehicle interior heats
up significantly.
■ Water on the floor
Do not wash the vehicle floor with water.
Vehicle systems such as the audio system may be damaged if wate r comes
into contact with electrical components such as the audio syste m above or
under the floor of the vehicle. Water may also cause the body to rust.
■ When cleaning the inside of the windshield
Do not allow glass cleaner to contact the lens. Also, do not to uch the lens.
( P. 219)
■ Cleaning the inside of the rear window
● Do not use glass cleaner to clean the rear window, as this may cause
damage to the rear window defogger heater wires or antenna. Use a cloth
dampened with lukewarm water to gently wipe the window clean. Wipe the
window in strokes running parallel to the heater wires or antenna.
● Be careful not to scratch or damage the heater wires or antenna .
Page 382 of 528

3827-3. Do-it-yourself maintenance
MIRAI_OM_USA_OM62073U■
Situations in which the tire pressure warning system may not op
er-
ate properly
●In the following cases, the tire pressure warning system may no t operate
properly.
• If non-genuine Toyota wheels are used.
• A tire has been replaced with a tire that is not an OE (Original Equip-
ment) tire.
• A tire has been replac ed with a tire that is not of the specif ied size.
• Tire chains, etc., are equipped.
• An auxiliary-supported ru n-flat tire is equipped.
• If a window tint that affects the radio wave signals is instal led.
• If there is a lot of snow or ice on the vehicle, particularly around the
wheels or wheel housings.
• If the tire inflation pressure is extremely higher than the sp ecified
level.
• If wheels without the tire pressure warning valves and transmi tters
are used.
• If the ID code on the tire pressure warning valves and transmi tters is
not registered in the tire pressure warning computer.
●Performance may be affected in the following situations.
• Near a TV tower, electric power plant, gas station, radio stat ion, large
display, airport or other facilit y that generates strong radio waves or
electrical noise
• When carrying a portable radio, cellular phone, cordless phone or
other wireless communication device
●When the vehicle is parked, the time taken for the warning to s tart or go
off could be extended.
●When tire inflation pressure declines rapidly for example when a tire has
burst, the warning may not function.
Page 410 of 528

4108-1. Essential information
MIRAI_OM_USA_OM62073U
If the vehicle is trapped in rising water
●Remove the seat belt first.
● If the door can be opened, open the door and exit the vehicle.
● If the door can not be opened, open the window using the power
window switch and exit the vehicle through the window.
● If the window can not be opened using the power window switch,
remain calm, wait until the water level inside the vehicle rise s to the
point that the water pressure i nside of the vehicle equals the water
pressure outside of the vehicl e, and then open the door and exi t the
vehicle.
In the event the vehicle is submerged in water, remain calm and
perform the following.
WARNING
■ Using an emergency hammer* for emergency escape
The rear window of this vehicle can be shattered by an emergenc y ham-
mer
* used for emergency escape, however, since the windshield, front side
windows and rear side windows are laminated glass they can not be shat-
tered by an emergency hammer
*.
*: Contact your Toyota dealer or aftermarket accessory manufacturer for fur-
ther information about an emergency hammer.
■ Escaping the vehicle from the window
There are cases where escaping the vehicle from the window is n ot possi-
ble due to seating position, passenger body type, etc.
When using an emergency hammer, consider your seat location and the
size of the window opening to ensure that the opening is accessible and
large enough to escape.
Page 450 of 528
4508-2. Steps to take in an emergency
MIRAI_OM_USA_OM62073U
■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. 487)
Starting the fuel cell system
1
2
3
4
Page 451 of 528

4518-2. Steps to take in an emergency
MIRAI_OM_USA_OM62073U
8
When trouble arises
■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. 400)
■ 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. 82)
■ 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. 486)
● Check if battery-saving mode is set. If it is set, cancel the f unction.
( P. 145)
■ 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. 188)
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 .
3
Page 478 of 528

4789-1. Specifications
MIRAI_OM_USA_OM62073U
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation pres-
sure
Tire pressure when the vehicle has been
parked for three hours or more, or has not
been driven more than 1 mile or 1.5 km under
that condition
Maximum inflation
pressureThe maximum cold inflated pressure to which
a tire may be inflated, shown on the sidewall
of the tire
Recommended infla-
tion pressureCold tire inflation pressure recommended by a
manufacturer
Accessory weight
The combined weight (in excess of those stan-
dard items which may be replaced) of trans-
mission, power steering, power brakes, power
windows, power seats, radio and heater, to the
extent that these items are available as fac-
tory-installed equipment (whether installed or
not)
Curb weight
The weight of a motor vehicle with standard
equipment, including the maximum capacity of
fuel, oil and coolant, and if so equipped, air
conditioning and additional weight optional
engine
Maximum loaded vehi-
cle weight
The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight
Normal occupant
weight150 lb. (68 kg) times the number of occupants
specified in the second column of Table 1
*
that follows
Occupant distributionDistribution of occupants in a vehicle as speci-
fied in the third column of Table 1
* below
Page 487 of 528
4879-2. Customization
MIRAI_OM_USA_OM62073U
9
Vehicle specifications
■Wireless remote control (P. 1 3 2 138)
■Power windows ( P. 167)
■Driving position memory ( P. 153)
FunctionDefault
settingCustomized setting
Wireless remote controlOnOff———O
Unlocking operation
Driver’s door
unlocked in
first step, all doors
unlocked in
second step
All doors
unlocked in first step
O——O
Trunk unlocking operationPress and
hold (short)
One short press
———OPush twice
Press and
hold (long)
Off
Panic functionOnOff———O
FunctionDefault settingCustomized setting
Mechanical key linked
operationOffOn———O
Wireless remote control
linked open operationOffOn———O
Open window reminder
buzzerOnOff———O
FunctionDefault settingCustomized setting
Driver’s seat movement
when exiting the vehicleFullOffO——OPartial
Selection the door linking
driving position memory with
door unlock operation
Driver’s doorAll doors———O
Page 494 of 528
4949-3. Items to initialize
MIRAI_OM_USA_OM62073U
Items to initialize
The following items must be initialized for normal system opera-
tion after such cases as the 12-volt battery being reconnected,
or maintenance being pe rformed on the vehicle:
ItemWhen to initializeReference
Power windowWhen functioning abnormallyP. 168
Ion filterAfter changing the ion filterP. 490
Parking Support Brake func-
tion (for static objects)After reconnecting or chang-
ing the 12-volt batteryP. 283