2023 TOYOTA MIRAI stop start

1965-2. Driving procedures
Owners Manual_USA_M62064_en
*: If equipped
■Customization
Some functions can be customized.
(  P.519)
■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
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
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.320)
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

1975-2. Driving procedures
Owners Manual_USA_M62064_en
5
Driving
vehicle 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.

2135-4. Refueling
Owners Manual_USA_M62064_en
5
Driving
■Error operation prevention
function
When the fuel door is open, the fuel
cell system will not start. When the
“READY” indicator is on, the fuel
door will not open.
■If “Open Filler Door Detected
Stop in a Safe Place Close
Hydrogen Filler Door” is dis-
played on the multi-information
display
The fuel door is open. Stop the vehi-
cle in a safe place and close the fuel
door.
■If “Open Filler Door Detected
Close Hydrogen Filler Door
Restart Vehicle” is displayed on
the multi-information display
The fuel door is open and the fuel
cell system cannot be started. Shift
the shift position to P and, turn the
power switch off, then:
1 Check whether the cap has been
reinstalled.
2 Close the fuel door.
If the warning message on the multi-
information display turns off at this
time, there is no malfunction. How-
ever, if the display continues to
show, the sensor may be damaged.
Have the vehicle inspected by your
Toyota dealer.
It can be started 1 time at intervals
of repeating the st arting operations
5 times (With the brake pedal
depress, press the power switch
operations 9 times within the inter-
val of 2 seconds). Operate the vehi-
cle after checking to be sure that the
hydrogen fueling nozzle is not con-
nected to the vehicle.

2485-5. Using the driving support systems
Owners Manual_USA_M62064_en
When there are no vehicles ahead
The vehicle travels at the speed set by the driver.
Example of deceleration crui sing and follow-up cruising
When a preceding vehicle driving slower than the set speed
appears
When a vehicle is detected runni ng ahead of you, the system automatically
decelerates your vehicle. When a greater reduction in vehicle s peed is nec-
essary, the system applies the brakes (the stop lights will come on at this
time). The system will respond to changes in the speed of the vehicle
ahead in order to maintain the vehicle-to-vehicle distance set by the driver.
Approach warning warns you when the system cannot decelerate suffi-
ciently to prevent your vehicle from closing in on the vehicle ahead.
When the vehicle ahead of you st ops, your vehicle will also stop (vehicle is
stopped by system control). Afte r the vehicle ahead starts off, pressing the
“+RES” switch or depressing the accelerator pedal (start-off operation) will
resume follow-up cruising. If the start-off operation is not pe rformed, system
control continues to keep your vehicle stopped.
When the turn signal lever is ope rated and your vehicle moves to an over-
taking lane while driving at 50 mph (80 km/h) or more, the vehi cle will accel-
erate to help to overt ake a passing vehicle.
The system’s identification of what is an overtaking lane may be determined
solely based on the location of the steering wheel in the vehicle (left side
driver position versus right side driver position.) If the vehi cle is driven to a
region where the overtaking lane is on a different side from wh ere the vehi-
cle is normally driven, the vehicle may accelerate when the tur n signal lever
is operated in the opposite direction to the overtaking lane (e .g., if the driver
normally operates the vehicle in a region where the overtaking lane is to the
right but then drives to a region where the overtaking lane is to the left, the
vehicle may accelerate when the right turn signal is activated).
Example of acceleration
When there are no longer any preceding vehicles driving slower
than the set speed
The system accelerates until the set speed is reached. The system then
returns to constan t speed cruising.
1Press the cruise control main
switch to activate the cruise control.
Dynamic radar cruise control indi-
cator will come on and a message
will be displayed on
the multi-infor-
mation display. Press the switch
again to deactivate the cruise con-
trol.
Setting the vehicle speed
(vehicle-to-vehicle dis-
tance control mode)

2515-5. Using the driving support systems
Owners Manual_USA_M62064_en
5
Driving
After the vehicle ahead of you
starts off, press the “+RES”
switch.
Your vehicle will also resume
follow-up cruising if the acceler-
ator pedal is depressed after the
vehicle ahead of you starts off. “Push Cruise Control Switch
or Press Accelerator to
Resume” 1
Pressing the cancel switch
cancels the speed control.
The speed control is also canceled
when the brake pedal is depressed.
(When the vehicle has been
stopped by system control,
depressing the br ake pedal does
not cancel the setting.)
2 Pressing the “+RES” switch
resumes the cruise control
and returns vehicle speed to
the set speed.
When your vehicle is too close
to a vehicle ahead, and suffi-
cient automatic deceleration via
the cruise control is not possi-
ble, the display will flash and the
buzzer will sound to alert the
driver. An example of this would
be if another driver cuts in front
of you while you are following a
vehicle. Depress the brake
pedal to ensure an appropriate
vehicle-to-vehicle distance.
Distance optionsVehicle-to-vehicle dis- tance
LongApproximately 160 ft. (50 m)
MediumApproximately 130 ft. (40 m)
ShortApproximately 100 ft. (30 m)
Resuming follow-up
cruising when the vehicle
has been stopped by sys-
tem control (vehicle-to-
vehicle distance control
mode)
Canceling and resuming
the speed control
Approach warning (vehi-
cle-to-vehicle distance
control mode)

2535-5. Using the driving support systems
Owners Manual_USA_M62064_en
5
Driving
When constant speed control
mode is selected, your vehicle
will maintain a set speed without
controlling the vehicle-to-vehi-
cle distance. Select this mode
only when vehicle-to-vehicle dis-
tance control mode does not
function correctly due to a dirty
radar, etc.
1 With the cruise control off,
press and hold the cruise
control main switch for 1.5
seconds or more.
Immediately after the switch is
pressed, the dynamic radar cruise
control indicator will come on. After-
wards, it switches to the cruise con-
trol indicator.
Switching to constant speed control
mode is only possible when operat-
ing the switch wit h the cruise con-
trol off.
2 Accelerate or decelerate,
with accelerator pedal opera-
tion, to the desired vehicle
speed (at or above approxi-
mately 20 mph [30 km/h])
and press the “-SET” switch
to set the speed.
Cruise control “SET” indicator will come on.
The vehicle speed at the moment
the switch is released becomes the
set speed.
Adjusting the speed setting:

P.249
Canceling and resuming the speed
setting:  P. 2 5 1
■Dynamic radar cruise control
with full-speed range can be set
when
●The shift position is in D.
●The desired set speed can be set
when the vehicle speed is approx-
imately 20 mph (30 km/h) or more.
(However, when the vehicle speed
is set while driving at below
approximately 20 mph [30 km/h],
the set speed w ill be set to
approximately 20 mph [30 km/h].)
■Accelerating after setting the
vehicle speed
The vehicle can a ccelerate by oper-
ating the accelera tor pedal. After
accelerating, the set speed
resumes. However, during vehicle-
to-vehicle distance control mode,
the vehicle speed may decrease
below the set speed in order to
maintain the distance to the preced-
ing vehicle.
■When the vehicle stops while
follow-up cruising
●Pressing the “+RES” switch while
the vehicle ahead stops will
resume follow-up cruising if the
vehicle ahead starts off within
Selecting constant speed
control mode

2545-5. Using the driving support systems
Owners Manual_USA_M62064_enapproximately 3 seconds after the
switch is pressed.
●If the vehicle ahead starts off
within 3 seconds after your vehicle
stops, follow-up cruising will be
resumed.
■Automatic cancelation of vehi-
cle-to-vehicle d
istance control
mode
Vehicle-to-vehicle distance control
mode is automatically canceled in
the following situations.
●VSC is activated.
●TRAC is activated for a period of
time.
●When the VSC or TRAC system is
turned off.
●The sensor cannot detect cor-
rectly because i t is covered in
some way.
●When the brake control or output
restriction control of a driving sup-
port system operates. (For exam-
ple: Pre-Collision System, Drive-
Start Control)
●The parking brake is operated.
●The vehicle is stopped by system
control on a steep incline.
●The following are detected when
the vehicle has been stopped by
system control:
• The driver is not wearing a seat belt.
• The driver’s door is opened.
• The vehicle has been stopped for about 3 minutes.
●When the Br mode is selected.
If vehicle-to-vehicle distance control
mode is automatically canceled for
any reasons other than the above,
there may be a malfunction in the
system. Contact your Toyota dealer.
■Automatic cancelation of con-
stant speed control mode
Constant speed control mode is
automatically cance led in the follow-
ing situations:
●Actual vehicle speed is more than
approximately 10 mph (16 km/h)
below the set vehicle speed.
●Actual vehicle speed falls below
approximately 20 mph (30 km/h).
●VSC is activated.
●TRAC is activated for a period of
time.
●When the VSC or TRAC system is
turned off.
●When the brake control or output
restriction control of a driving sup-
port system operates. (For exam-
ple: Pre-Collision System, Drive-
Start Control)
●When the Br mode is selected.
If constant speed control mode is
automatically canceled for any rea-
sons other than the above, there
may be a malfunction in the system.
Contact your Toyota dealer.
■Situations in which the curve
speed reduction function may
not operate
In situations such as the following,
the curve speed reduction function
may not operate:
●When the vehicle is being driven
around a gentle curve
●When the accele rator pedal is
being depressed
●When the vehicle is being driven
around an extremely short curve
■Brake operation
A brake operation sound may be
heard and the brake pedal response
may change, but these are not mal-
functions.
■Warning messages and buzzers
for dynamic radar cruise con-
trol with full-speed range
Warning messages and buzzers are
used to indicate a system malfunc-
tion or to inform the driver of the
need for caution while driving. If a
warning message is shown on the
multi-information display, read the

2605-5. Using the driving support systems
Owners Manual_USA_M62064_en
bumper*2
*1: The area between the side of the vehicle and 1.6 ft. (0.5 m) from the side
of the vehicle cannot be detected.
*2: The greater the difference in speed between your vehicle and t he
detected vehicle is, the farthe r away the vehicle will be detec ted, causing
the outside r ear view mirror indicato r to illuminate or flash.
■The Blind Spot Monitor is oper-
ational when
The Blind Spot Monitor is opera-
tional when all of the following con-
ditions are met:
●The Blind Spot Monitor is on.
●The shift position is in a position
other than R.
●The vehicle speed is greater than
approximately 10 mph (16 km/h).
■The Blind Spot Monitor will
detect a vehicle when
The Blind Spot Mon itor will detect a
vehicle present in the detection area
in the followin g situations:
●A vehicle in an adjacent lane over-
takes your vehicle.
●You overtake a vehicle in an adja-
cent lane slowly.
●Another vehicle enters the detec-
tion area when it changes lanes.
■Conditions under which the
system will not detect a vehicle
The Blind Spot Monitor is not
designed to detect the following
types of vehicles and/or objects:
●Small motorcycles, bicycles,
pedestrians, etc.*
●Vehicles traveling in the opposite
direction
●Guardrails, walls, signs, parked
vehicles and similar stationary
objects
*
●Following vehicles that are in the
same lane*
●Vehicles traveling 2 lanes away from your vehicle
*
●Vehicles which are being over-
taken rapidly by your vehicle*
*
: Depending on the conditions, detection of a v ehicle and/or
object may occur.
■Conditions under which the
system may not function cor-
rectly
●The Blind Spot Monitor may not
detect vehicles corr ectly in the fol-
lowing situations:
• When the sensor is misaligned due to a strong impact to the sen-
sor or its surrounding area
• When mud, snow, ice, a sticker, etc., is covering the sensor or sur-
rounding area on the rear bumper
• When driving on a road surface that is wet with standing water
during bad weather, such as
heavy rain, snow, or fog
• When multiple vehicles are approaching with only a small gap
between each vehicle
• When the distance between your vehicle and a following vehicle is
short
• When there is a significant differ- ence in speed between your vehi-
cle and the vehicle that enters the
detection area
• When the difference in speed
between your vehicle and another
vehicle is changing
• When a vehicle enters a detection
area traveling at about the same
speed as your vehicle
• As your vehicle starts from a stop,
a vehicle remains in the detection
area
• When driving up and down con-