heating TOYOTA MIRAI 2022 Owners Manual

15Pictorial index
Owners Manual_USA_M62084_en
Precautions for winter seas on.............................................. P.320
To prevent freezing (windshield wiper de-icer)
*............ P.329, 338
Precautions for car wash (vehicles with rain-sensing windshield wip-
ers) ....................................................................................... P.382
Fuel door ...................................................... ....................... P.203
Refueling method ............................................... .................. P.203
Fuel type/hydrogen t anks’ fuel capacity ........................ ....... P.483
Tires.......................................................... ........................... P.403
Tire size/inflation pressure ................................... ........ P.403, 487
Winter tires/tire chains ....................................... .................. P.320
Checking/rotation/tire pressur e warning system ..................P.403
Coping with flat tires......................................... .................... P.455
Hood ........................................................... ......................... P.393
Opening ............................................................................... P.393
Fuel cell unit compartment cover ............................... .......... P.396
Coping with overheating ...................................................... P.476
Warning messages ............................................... ............... P.451
Headlights/daytime running lights
*.................................. P.191
Parking lights/dayt ime running lights
*............................. P.191
Turn signal lights ............................................. .................. P.182
Tail lights.................................................... ......................... P.191
Tail lights.................................................... ......................... P.191
Stop lights
License plate lights........................................... ................. P.191
Back-up lights
Changing the shift position to R ............................... ............ P.177
Side marker lights ............................................. ................. P.191
Light bulbs of the exterior lights for driving
(Replacing method: P.429)

892-1. Fuel cell vehicle
Owners Manual_USA_M62084_en
2
Fuel cell systemMaintaining the fuel cell system
indicator to Eco area on the
multi-information display can
extend your driving range.
( P.102)
Drive your vehicle smoothly.
Avoid abrupt acceleration and
deceleration.
Mild acceleration and decelera-
tion can help curb wasteful fuel
consumption.
If the brakes are operated gently
and in a timely manner, a
greater amount of electrical
energy can be regenerated
when slowing down.
Repeated acceleration and
deceleration, as well as long
waits at traffic lights, will lead to decreased fuel economy. Check
traffic reports before leaving and
avoid delays as much as possi-
ble. When driving in a con-
gested traffic situations, gently
release the brake pedal to allow
the vehicle to move forward
slightly while avoiding overuse
of the accelerator pedal. Doing
so can help control excessive
fuel consumption.
Similar to an electric vehicle, a
fuel cell vehicle uses the most
fuel in high output driving such
as driving on a steep uphill or at
high speeds. Moderate the vehi-
cle speed and maintain a steady
speed.
When using Eco drive mode, the
torque corresponding to the
accelerator pedal depression
amount can be generated more
smoothly than it is in normal
conditions. In addition, the oper-
ation of the air conditioning sys-
tem (heating/cooling) will be
minimized, improving the fuel
economy. (
P.313)
 Use the air conditioning only
when necessary. Doing so
Fuel cell vehicle driv-
ing tips
To maximize fuel economy
and range, pay attention to
the following:
Use of fuel cell system
Indicator
Accelerator pedal/brake
pedal operation
When braking
Delays
Driving with high power
output
Using Eco drive mode
Air conditioning

902-1. Fuel cell vehicle
Owners Manual_USA_M62084_en
can help reduce excessive
fuel consumption.
In summer: When the ambient
temperature is high, use the
recirculated air mode. Doing
so will help to reduce the bur-
den on the air conditioning
system and reduce fuel con-
sumption as well.
In winter: Avoid excess heat-
ing. Use the seat heater (if
equipped) or steering heater
(if equipped) to minimize the
need for cabin heating
(P.342).
 Using eco air conditioning
mode, this helps curb fuel
consumption even with the air
conditioning system turned
on. ( P.326, 334)
Make sure to check the tire infla-
tion pressure frequently.
Improper tire inflation pressure
can cause poor fuel economy.
Also, as snow tires can cause
large amounts of friction, their
use on dry roads can lead to
poor fuel economy. Use tires
that are appropriate for the sea-
son.
Carrying heavy luggage will lead
to reduced fuel economy. Install-
ing a large roof rack will also reduce fuel economy.
Checking tire inflation
pressure
Luggage

1735-2. Driving procedures
Owners Manual_USA_M62084_en
5
Driving
Shutdown Due to Freezing Stop in
a Safe Place See Owner’s Man-
ual” may be displayed in the multi-
information display.
The fuel cell system is frozen and
cannot be started. Contact your Toy-
ota dealer.
●The power output will be tempo-
rarily limited until the fuel cell sys-
tem reaches full operating
temperature.
●When the traction battery is
extremely cold (below approxi-
mately -22˚F [-3 0˚C]) under the
influence of outsi de temperature,
it may not be poss ible to start the
fuel cell system. In this case, try to
start the fuel ce ll system again
after the temperat ure of the trac-
tion battery increases due to the
outside temperature increase etc.
■If the fuel cell system does not
start
●The immobilizer system may not
have been deactivated. ( P. 6 9 )
Contact your Toyota dealer.
●If a message related to start-up is
shown on the multi-information
display, read the message and fol-
low the instructions.
●Check that the fuel door is closed.
When the fuel doo r is open, the
fuel cell system cannot be started.
Close the fuel door before starting
the system. ( P.205)
■Sounds and vibrations specific
to a fuel cell vehicle
 P. 7 5
■If the 12-volt battery is dis-
charged
The fuel cell system cannot be
started using the smart key system.
Refer to P.471to res tart the fuel cell
system.
■Electronic key battery depletion
 P. 1 1 8
■Conditions affecting operation
 P.132
■Notes for the entry function
 P.132
■If “Smart Key System Malfunc-
tion See Owner’s Manual” is
displayed on the multi-informa-
tion display
The system may be malfunctioning.
Have the vehicle inspected by your
Toyota dealer immediately.
■Steering lock function
●After turning the power switch off
and opening and closing the
doors, the steeri ng wheel will be
locked due to the steering lock
function. Operating the power
switch again automatically can-
cels the steering lock.
●When the steering lock cannot be
released, “Push Power Switch
while Turning Steering Wheel in
Either Direction” will be displayed
on the multi-information display.
Press the power switch shortly
and firmly while turning the steer-
ing wheel left and right.
●To prevent the steering lock motor
from overheating , the motor may
be suspended if the fuel cell sys-
tem is turned on and off repeat-
edly in a short period of time. In
this case, refrain from operating
the power switch. After about 10
seconds, the steering lock motor
will resume functioning.
■If the “READY” indicator does
not come on
In the event that the “READY” indi-
cator does not come on even after

1855-2. Driving procedures
Owners Manual_USA_M62084_en
5
Driving
■Parking brake automatic
release function
●When the shift position is shifted
from P, the parking brake will be
released in automatic mode.
●When all of the following condi-
tions are met in manual mode, the
parking brake can be released by
depressing the accelerator pedal.
• The driver’s door is closed
• The driver is wearing the seat belt
• The shift position is in D or R
■If “Parking Brake Temporarily
Unavailable” i s displayed on
the multi-information display
If the parking brake is operated
repeatedly over a short period of
time, the system may restrict opera-
tion to prevent overheating. If this
happens, refrain from operating the
parking brake. Nor mal operation will
return after about 1 minute.
■If “Parking Brake Unavailable”
is displayed on the multi-infor-
mation display
Operate the parking brake switch. If
the message does not disappear
after operating the switch several
times, the system may be malfunc-
tioning. Have the vehicle inspected
by your Toyota dealer.
■Parking brake operation sound
When the parking brake operates, a
motor sound (whirring sound) may
be heard. This does not indicate a
malfunction.
■Parking brake operation
●Depending on the power switch
mode, the parking brake indicator
light will turn on and stay on as
described below:
ON: Comes on until the parking
brake is released.
Not in ON: Stays on for approxi-
mately 15 seconds.
●When the power switch is turned
off with the parking brake set, the
parking brake indicator light will
stay on for about 15 seconds. This does not indicate a malfunction.
■When the parking brake switch
malfunctions
Automatic mode (automatic brake
setting and releas ing) will be turned
on automatically.
■Parking the vehicle
 P.161
■Parking brake engaged warning
buzzer
A buzzer will sound if the vehicle is
driven with the parking brake
engaged. “Parking Brake ON” is dis-
played on the multi-information dis-
play. (with the vehicle reached a
speed of 3 mph [5 km/h])
■If the parking brake indicator
flashes
 P.447
■Usage in winter time
 P.320
WARNING
■When parking the vehicle
Do not leave a child in the vehicle
alone. The parking brake may be
released unintentionally and there
is the danger of the vehicle mov-
ing that may lead to an accident
resulting in death o r serious injury.
NOTICE
■When parking the vehicle
Before you leave the vehicle, set
the parking brake, shift the shift
position to P and make sure that
the vehicle does not move.
■When the system malfunc-
tions
Stop the vehicle in a safe place
and check the warning messages.

1865-2. Driving procedures
Owners Manual_USA_M62084_en
Turns the brake hold system on
The brake hold standby indicator
(green) comes on. While the
system is holding the brake, the
brake hold operated indicator (yel-
low) comes on.
■Brake hold system operating
conditions
The brake hold system cannot be
turned on in the following condi-
tions:
●The driver’s door is not closed.
●The driver is not wearing the seat
NOTICE
■When the parking brake can-
not be released due to a mal-
function
Driving the vehicle with the park-
ing brake set will lead to brake
components overheating, which
may affect braking performance
and increase brake wear.
Have the vehicle inspected by
your Toyota dealer immediately if
this occurs.
Brake Hold
The brake hold system
keeps the brake applied
when the shift position is in
D or N with the system on
and the brake pedal has
been depressed to stop the
vehicle. The system
releases the brake when the
accelerator pedal is
depressed with the shift
position in D to allow
smooth start off.
Enabling the system

3135-5. Using the driving support systems
Owners Manual_USA_M62084_en
5
Driving
Multi-information display
Driving mode select switch
Driving mode change s if the switch
is pressed.
1 Normal mode
Provides an optimal balance of fuel
economy, quietness, and dynamic
performance. Suitable for normal
driving.
2Sport mode
Controls the transmission and fuel
cell system to provide quick, power-
ful acceleration. Making it suitable
for when agile dri ving response is
desired, such as when driving on
roads with many curves.
When the sport mod e is selected,
sport mode indicator comes on.
3 Eco drive mode
Helps the driver accelerate in an
eco friendly mann er and improve
fuel economy through moderate
throttle characteristics and by con-
trolling the operation of the air con-
ditioning system (heating/ cooling).
When the Eco drive mode is
selected, Eco drive mode indicator
comes on.
■Operation of the air condition-
ing system in Eco drive mode
Eco drive mode con trols the heat-
ing/ cooling operations and fan
speed of the air conditioning system
to enhance fuel efficiency. To
improve air conditioning perfor-
mance, perform the following opera-
tions:
●Turn off eco air conditioning mode
(  P.326)
●Adjust the fan speed ( P.326)
●Turn off Eco drive mode
■Automatic deactivation of sport
mode
If the power switch is turned off after
driving in sport mode, the drive
mode will be change d to normal
mode.
Driving mode select
switch
The driving modes can be
selected to suit driving con-
dition.
Selecting a drive mode

3185-5. Using the driving support systems
Owners Manual_USA_M62084_en
■Operating conditions of Active
Cornering Assist
The system operates when the fol-
lowing occurs.
●TRAC/VSC can operate
●The driver is at tempting to accel-
erate while turning
●The system detects that the vehi-
cle is drifting to the outer side
●The brake pedal is released
■Reduced effectiveness of the
EPS system
The effectiveness of the EPS sys-
tem is reduced to prevent the sys-
tem from overheating when there is
frequent steering input over an
extended period of time. The steer-
ing wheel may feel heavy as a
result. Should this occur, refrain
from excessive steering input or
stop the vehicle and turn the fuel
cell system off. The EPS system
should return to normal within 10
minutes.
■Secondary Collision Brake
operating conditions
The system operates when the SRS
airbag sensor detects a collision
while the vehicle is in motion. How-
ever, the system does not operate in
any of the following situations.
●When driving at a low speed
●Components are damaged
■Secondary Collision Brake
automatic cancelation
The system is automatically can-
celed in any of th e following situa-
tions.
●The vehicle speed has decreased
to a certain speed
●A certain amount o f time elapses
during operation
●The accelerator pedal is
depressed a large amount
WARNING
■The ABS does not operate
effectively when
●The limits of tire gripping perfor-
mance have been exceeded
(such as excessively worn tires
on a snow covered road).
●The vehicle hydroplanes while
driving at high speed on wet or
slick roads.
■Stopping distance when the
ABS is operating may exceed
that of normal conditions
The ABS is not designed to
shorten the vehicle’s stopping dis-
tance. Always maintain a safe dis-
tance from the veh icle in front of
you, especially in the following sit-
uations:
●When driving on dirt, gravel or
snow-covered roads
●When driving with tire chains
●When driving over bumps in the
road
●When driving over roads with
potholes or uneven surfaces
■TRAC/VSC may not operate
effectively when
Directional control and power may
not be achievable while driving on
slippery road surfaces, even if the
TRAC/VSC system is operating.
Drive the vehicle carefully in con-
ditions where stability and power
may be lost.
■Active Cornering Assist does
not operate effectively when
●Do not overly rely on Active
Cornering Assist. Active Corner-
ing Assist may not operate
effectively when accelerating
down slopes or driving on slip-
pery road surfaces.

3246-1. Using the air conditioning system and defogger
Owners Manual_USA_M62084_en
6-1.Using the air conditioning system and defogger
*: If equipped
Select the of the Toyota
Multi-Operation Touch, display
the Seat/Steering Climate
Screen and select .
The indicator on the ALL AUTO
control screen illuminates, and the
automatic air conditioning system,
seat heaters and v entilators, and
heated steering wheel operate in
automatic mode.
If any of the system is operated
manually, the indicator turns off.
However, all other functions con-
tinue to operate in automatic mode.
■Automatic air conditioning
system ( P.332)
The temperature can be adjusted independently for each
seat.
■Seat heaters (if equipped)
and ventilators (if
equipped) (
P.342)
Heating or ventilation is auto-
matically selected according to
the set temperature of the air
conditioning system, the out-
side temperature, etc.
■Heated steering wheel (if
equipped) ( P.342)
Heated steering wheel operates
automatically according to the
set temperature of the air condi-
tioning system, the outside tem-
perature, etc.
■Passenger detection functions
When a passenger is detected in
the front passenger seat, the seat
heater and ventila tor will operate
automatically.
■Seat heater (if equipped)/venti-
lator operation (if equipped)
When automatic mode is selected
using the seat heater/ventilator
switch, passenger d etection is not
performed.
■Rear seat heater operation
(vehicles with 3-ZONE climate
control)
The rear seat heaters are not con-
trolled by the ALL AUTO control.
ALL AUTO control*
The seat heaters, seat venti-
lators and heated steering
wheel (if equipped) are each
automatically controlled
according to the set tem-
perature of the air condi-
tioning system, the outside
and cabin temperature, etc.
ALL AUTO control allows a
comfortable condition to be
maintained without adjust-
ing each system.
Turning on ALL AUTO
control
Operation of each system

3276-1. Using the air conditioning system and defogger
Owners Manual_USA_M62084_en
6
Interior features
To return to the previous mode,
press the windshield defogger
switch again when the windshield is
defogged.
When the windshield defogger
switch is on, the indicator illumi-
nates on the windshield defogger
switch.
■Defogging the rear window
and outside rear view mir-
rors
Defoggers are used to defog the
rear window and to remove rain-
drops, dew and frost from the
outside rear view mirrors.
Press the rear window and out-
side rear view mirror defoggers
switch.
The defoggers will automatically
turn off after 15 minutes.
When the rear window and outside
rear view mirror defoggers switch is
on, the indicator illuminates on the
rear window and ou tside rear view
mirror defoggers switch.
■When the outside temperature
exceeds 75°F (24°C) and the air
conditioning system is on
●In order to reduce the air condi-
tioning power consumption, the air
conditioning system may switch to
recirculated air mode automati-
cally.
This may also reduce fuel con-
sumption.
●Recirculated air mode is selected
as a default mode when the power
switch is turned to ON.
●It is possible to switch to outside
air mode at any time by pressing
the outside/recirculated air mode
switch.
■Fogging up of the windows
●The windows will easily fog up
when the humidity in the vehicle is
high. Turning the cooling and
dehumidification function on will
dehumidify the air from the outlets
and defog the windshield effec-
tively.
●If you turn the cooling and dehu-
midification function off, the win-
dows may fog up more easily.
●The windows may fog up if the
recirculated air mode is used.
■When driving on dusty roads
Close all windows. If dust thrown up
by the vehicle is still drawn into the
vehicle after closing the windows, it
is recommended that the air intake
mode be set to outside air mode and
the fan speed to a ny setting except
off.
■Outside/recirculated air mode
●Setting to the recirculated air
mode temporarily is recom-
mended in preventing dirty air
from entering the vehicle interior
and helping to c ool the vehicle
when the outside air temperature
is high.
●Outside/recirculated air mode may
automatically switch depending on
the temperature setting or the
inside temperature.
■When the outside temperature
falls to nearly 32°F (0°C)
The dehumidification function may
not operate even when “A/C” switch
is pressed.
■Operation of the air condition-
ing system in Eco drive mode
●In Eco drive mode, the air condi-
tioning system is controlled as fol-
lows to prioritize fuel efficiency:
• Fuel cell system and compressor
operation controlled to restrict
heating/cooling capacity
• Fan speed restri cted when auto-
matic mode is selected