TOYOTA MIRAI 2022 Owners Manual

1815-2. Driving procedures
Owners Manual_USA_M62084_en
5
Driving
 Performing the following oper-
ations allows the power
switch to be set to ACC with
the shift position held in N.
1 Operate the shift lever and
change the shift position to N
when the fuel cell system is
operating.
2 Return the shift lever to its
regular position ( ).
3 Operate the shift lever to N
and hold it there until the
buzzer sounds.
4 Press the power switch within
5 seconds after the buzzer
sounds.
The power swit ch will be set to
ACC with the shift position in N.*
Make sure to check that the buzzer
sounds and “Holding N Push P
Switch When Done” is displayed on
the multi-information display.
 To change to a shift position
other than N, press the P
position switch. The shift posi-
tion will be changed to P. 
Even if the fuel cell system is
not operating, by operating
the shift lever and the power
switch, the power switch may
be changed to ACC with the
shift position held in N. Make
sure that the fuel cell system
is operating before performing
the operation.
*: To keep this state, do not operate
the power switch . If the power
switch is operated repeatedly, the
power switch will turn off after the
shift position has automatically
changed to P.
■Driving mode
 P.313
■Snow mode
 P.314
■Br mode
Suitable for driving that requires
strong deceleration force, such
as down-hill driving, etc.
To select Br mode, shift the shift
lever down.
The Br mode indicator will illumi-
nate on the meter.
To return to normal driving mode,
depress the accelerator pedal or
select the D position again with the
shift lever.
NOTICE
■When exiting the vehicle
(driver’s seat only)
Check that the shift position indi-
cator shows P and that the park-
ing brake indicator is illuminated
before opening the door and exit-
ing the vehicle.
When the power switch is
changed to ACC with the
shift position held in N
Selecting the driving
mode

1825-2. Driving procedures
Owners Manual_USA_M62084_en
■Br mode
Depending on the condition of the
traction battery, Br mode may not be
available. In that case, a message is
displayed on the multi-information
display.
■Sounds when in Br mode
 P. 7 5
1 Right turn
2 Lane change to the right
(move the lever partway and
release it)
The right hand s ignals will flash 3
times.
3 Lane change to the left
(move the lever partway and
release it)
The left hand signals will flash 3
times.
4Left turn
■Turn signals can be operated
when
The power switch is in ON.
■If the indicator flashes faster
than usual
Check that a light bulb in the front or
rear turn signal lights has not
Tur n signal lever
Operating instructions

1835-2. Driving procedures
Owners Manual_USA_M62084_en
5
Driving
burned out.
■If the turn signals stop flashing
before a lane change has been
performed
Operate the lever again.
■Customization
Some functions can be customized.
(  P.498)
■Using the manual mode
The parking brake can be set
and released manually.
U.S.A.
Canada
1 Pull the switch to set the
parking brake
The parking brake indicator light
will turn on.
Parking brake
The parking brake can be
set or released automati-
cally or manually.
In automatic mode, the
parking brake can be set or
released automatically
according to the shift lever
operation. Also, even in
automatic mode, the park-
ing brake can be set or
released manually.
Operating instructions

1845-2. Driving procedures
Owners Manual_USA_M62084_enPull and hold the parking brake
switch if an emergency occurs and
it is necessary to operate the park-
ing brake while driving.
2
Push the switch to release
the parking brake
• Operate the parking brake switch
while depressing the brake pedal.
• Using the parking brake auto- matic release function, the park-
ing brake can be released by
depressing the accelerator pedal.
When using this function, slowly
depress the accelerator pedal.
Make sure that t he parking brake
indicator light turn off.
■Turns automatic mode on
While the vehicle is stopped,
pull and hold the parking brake
switch until a message is shown
on the multi-information display.
“EPB Shift Inte rlock Function
Activated”
When the automatic mode is
turned on, the parking brake
operates as follows.
 When the shift position is
shifted from P, the parking
brake will be released, and
the parking brake indicator
light will turn off. 
When the shift position is
shifted to P, the parking brake
will be set, and the parking
brake indicator light will turn
on.
Operate the shift lever and P
position switch with the vehicle
stopped and the brake pedal
depressed.
■Turns automatic mode off
While the vehicle is stopped,
press and hold the parking
brake switch until a message is
shown on the multi-information
display.
“EPB Shift Interlock Function
Deactivated”
Operate the shift lever and P
position switch with the vehicle
stopped and the brake pedal
depressed.
■Parking brake operation
●When the power switch is not in
ON, the parking brake cannot be
released using the parking brake
switch.
●When the power switch is not in
ON, automatic mode (automatic
brake setting and releasing) is not
available.

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

1875-2. Driving procedures
Owners Manual_USA_M62084_en
5
Driving
belt.
●The parking brake is engaged.
If any of the conditions above are
detected when the brake hold sys-
tem is enabled, the system will turn
off and the brake hold standby indi-
cator light will go of f. In addition, if
any of the conditions are detected
while the system is holding the
brake, a warning buzzer will sound
and a message will be shown on the
multi-information display. The park-
ing brake will then be set automati-
cally.
■Brake hold function
●If the brake pedal is left released
for a period of about 3 minutes
after the system has started hold-
ing the brake, the parking brake
will be set automatically. In this
case, a warning buzzer sounds
and a message is shown on the
multi-informat ion display.
●To turn the system off while the
system is holding the brake, firmly
depress the brake pedal and
press the button again.
●The brake hold function may not
hold the vehicle when the vehicle
is on a steep inclin e. In this situa-
tion, it may be necessary for the
driver to apply the brakes. A warn-
ing buzzer will sound and the
multi-informatio n display will
inform the driver of this situation. If
a warning message is shown on
the multi-information display, read
the message and follow the
instructions.
■When the parking brake is set
automatically while the system
is holding the brakes
Perform any of the following opera-
tions to release the parking brake.
●Depress the accelerator pedal.
(The parking brake will not be
released automatic ally if the seat
belt is not fastened.)
●Operate the parking brake switch
with the brake pedal depressed. Make sure that the parking brake
indicator light goes off. (
P.183)
■When an inspection at your
Toyota dealer is necessary
When the brake hold standby indi-
cator (green) does not illuminate
even when the brake hold switch is
pressed with the brake hold system
operating conditions met, the sys-
tem may be malf unctioning. Have
the vehicle inspected at your Toyota
dealer.
■If “Brake Hold Malfunction
Press Brake to Deactivate Visit
Your Dealer” or “Brake Hold
Malfunction Visit Your Dealer”
is displayed on the multi-infor-
mation display
The system may be malfunctioning.
Have the vehicle inspected by your
Toyota dealer.
■Warning messages and buzzers
Warning messages and buzzers are
used to indicate a system malfunc-
tion or to inform the driver of the
need for caution. If a warning mes-
sage is shown on the multi-informa-
tion display, read the message and
follow the instructions.
■If the brake hold operated indi-
cator flashes
 P.446
WARNING
■When the vehicle is on a
steep incline
When using the br ake hold sys-
tem on a steep inc line exercise
caution. The brake hold function
may not hold the vehicle in such a
situation.

1885-2. Driving procedures
Owners Manual_USA_M62084_en
*: If equipped
Turns the ASC on/off
When the ASC is on, the indicator
illuminates on the ASC switch.
■Operating conditions
When the driving mode select
switch is not in Eco drive mode.
■Temporary cancelation of the
ASC system functions
The ASC system may be temporar-
ily canceled depending on the driv-
ing conditions, such as when the
WARNING
■When stopped on a slippery
road
The system cannot stop the vehi-
cle when the gripping ability of the
tires has been exceeded. Do not
use the system when stopped on
a slippery road.
NOTICE
■When parking the vehicle
The brake hold s ystem is not
designed for use when parking
the vehicle for a long period of
time. Turning the power switch off
while the system i s holding the
brake may release the brake,
which would cause the vehicle to
move. When operating the power
switch, depress the brake pedal,
shift the shift position to P and set
the parking brake.
ASC (Active Sound
Control)*
The ASC is a system that
conveys the operating con-
ditions, such as accelera-
tion and deceleration of the
vehicle, with sounds to the
driver. The vehicle’s reac-
tion with regards to the
driver’s acceleration and
brake operations are con-
veyed with sound. The
respective tone changes for
normal mode and sport
mode. ( P.313)
Turning the ASC on/off

1895-2. Driving procedures
Owners Manual_USA_M62084_en
5
Driving
tires slip due to sudden accelera-
tion.
The tones may not sound if the driv-
ing mode is switched continuously
in short time periods.
When the H2O switch pressed
while the “READY” indicator is
on, the vehicle purges water.
When the switch is pressed
again, purging stops.
System purging and purging com-
plete messages are displayed in
the multi-information display.
■Water release function during
cold weather
In the following cases, the fuel cell
system automatic drainage may not
operate. It may not be possible to
start the fuel cell system due to the
fuel cell stack, hyd rogen pipes, etc.,
being frozen.
●When transporting or towing the
Water release (H2O
switch)
When the fuel cell system is
stopped, water is automati-
cally purged from the tail-
pipe.
To minimize water accumu-
lation at parking garages,
etc., purge can be done
manually before parking.
H2O switch

1905-2. Driving procedures
Owners Manual_USA_M62084_envehicle in frozen areas
●When the 12-volt battery terminals
are disconnected
and remain as
such in frozen areas
Operate the water release function
with the following p rocedure before-
hand to prevent water from freezing
in the system.
1 Turn the power switch to ON and
press the H
2O switch.
Check that the “A ctive Purge Mode
ON” message is displayed in the
multi-information display.
2 While depressing the brake,
press the power switch to start
the fuel cell system.
Check that the “READY” indicator
turns on.
3 Press the power switch to stop
the fuel cell system.
The water release is automatically
performed. (Longer than normal
water purge)
■Purging while parked
The water release function does not
completely prevent purging while
parked. The purge capacity while
parked changes depending on out-
side temperature and operating con-
ditions.
If the “READY” indicator continues
to remain on after water release has
been performed, w ater may be gen-
erated and purged when parked.