1484-2. Opening, closing and locking the doors
MIRAI_OM_USA_OM62073U●
The lock sensor may not work properly if it comes into contact with ice,
snow, mud, etc. Clean the lock sensor and attempt to operate it again.
● A sudden approach to the effective range or door handle may prevent the
doors from being unlocked. In this case, return the door handle to the origi-
nal position and check that the doors unlock before pulling the door handle
again.
● If there is another electronic key in the detection area, it ma y take slightly
longer to unlock the doors after the door handle is gripped.
■ When the vehicle is not driven for extended periods
●To prevent theft of the vehicle, do not leave the electronic ke y within 6 ft. (2 m)
of the vehicle.
● The smart key system can be deactivated in advance. ( P. 486)
■ To operate the system properly
●Make sure to carry the electronic key when operating the system . Do not get
the electronic key too close to the vehicle when operating the system from the
outside of the vehicle.
Depending on the position and holding condition of the electronic key, the key
may not be detected correctly and the system may not operate pr operly. (The
alarm may go off accidentally, or the door lock prevention func tion may not
operate.)
● Do not leave the electronic key inside the trunk.
The key confinement prevention function may not operate, depend ing on
the location of the key (close to the emergency tire puncture repair kit, the
inside edge of the trunk), conditions (inside a metal bag, clos e to metallic
objects) and the radio waves in the surrounding area. ( P. 140)
■ If the smart key system does not operate properly
●Locking and unlocking the doors and opening the trunk:
Use the mechanical key. ( P. 449)
● Starting the fuel cell system: P. 450
■ Customization
Settings (e. g. smart key system) can be changed.
(Customizable features: P. 486)
■ If the smart key system has been d eactivated in a customized setting
● Locking and unlocking the doors and opening the trunk:
Use the wireless remote control or mechanical key. ( P. 132, 138, 449)
● Starting the fuel cell system and changing power switch modes: P. 450
● Stopping the fuel cell system: P. 1 8 7
1755-1. Before driving
5
Driving
MIRAI_OM_USA_OM62073U
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■When starting the vehicle
Always keep your foot on the brake pedal while stopped with the “READY”
indicator is illuminated. This prevents the vehicle from creepi ng.
■ When driving the vehicle
● Do not drive if you are unfamiliar with the location of the brake and accel-
erator pedals to avoid depressing the wrong pedal.
• Accidentally depressing the accelerator pedal instead of the b rake
pedal will result in sudden acceleration that may lead to an ac cident.
• When backing up, you may twist your body around, leading to di fficulty
in operating the pedals. Make sure to operate the pedals proper ly.
• Make sure to keep a correct driving posture even when moving t he
vehicle only slightly. This allows you to depress the brake and accelera-
tor pedals properly.
• Depress the brake pedal using your right foot. Depressing the brake
pedal using your left foot may delay response in an emergency, result-
ing in an accident.
● The driver should pay extra attention to pedestrians when the fuel cell sys-
tem is on. As there are no engine sounds, pedestrians may misju dge the
vehicle’s movement.
● During normal driving, do not turn off the fuel cell system. Tu rning the fuel
cell system off while driving will not cause loss of steering o r braking con-
trol, however, power assist to the steering will be lost. This will make it
more difficult to steer smoothly, so you should pull over and stop the vehi-
cle as soon as it is safe to do so.
In the event of an emergency, such as if it becomes impossible to stop the
vehicle in the normal way: P. 409
● Do not adjust the positions of the steering wheel, the seat, or the inside or
outside rear view mirrors while driving.
Doing so may result in a loss of vehicle control.
● Always check that all passengers’ arms, heads or other parts of their body
are not outside the vehicle.
1885-2. Driving procedures
MIRAI_OM_USA_OM62073U
Modes can be changed by pressing the power switch with brake pedal
released. (The mode changes each time the switch is pressed.)
Off
The emergency flashers can be
used.
ACCESSORY mode
Some electrical components such
as the audio system can be used.
“Accessory” will be displayed on
the main display.
ON mode
All electrical components can be
used.
“Ignition On” will be displayed on
the main display.
■ Auto power off function
If the vehicle is left in ACCESSORY mode for more than 20 minut es or ON
mode (the fuel cell system is not operating) for more than an h our with the
shift position in P, the power switch will automatically turn o ff. However, this
function cannot entirely prevent 12-volt battery discharge. Do not leave the
vehicle with the power switch in ACCESSORY or ON mode for long periods
of time when the fuel cell system is not operating.
■ Sounds and vibrations speci fic to a fuel cell vehicle
P. 88
■ Electronic key battery depletion
P. 130
Changing power switch modes
1925-2. Driving procedures
MIRAI_OM_USA_OM62073U
WARNING
■When starting the fuel cell system
Always start the fuel cell system while sitting in the driver’s seat. Do not
depress the accelerator pedal while starting the fuel cell syst em under any
circumstances.
Doing so may cause an accident resulting in death or serious in jury.
■ Stopping the fuel cell system in an emergency
If you want to stop the fuel cell system in an emergency while driving the
vehicle, press and hold the power switch for more than 2 second s, or press
it briefly 3 times or more in succession. ( P. 409)
However, do not touch the power switch while driving except in an emer-
gency. Turning the fuel cell system off while driving will not cause loss of
steering or braking control, however, power assist to the steer ing will be
lost. This will make it more difficult to steer smoothly, so yo u should pull over
and stop the vehicle as soon as it is safe to do so.
NOTICE
■ To prevent 12-volt b attery discharge
Do not leave the power switch in ACCESSORY or ON mode for long peri-
ods if the fuel cell system is off.
■ When starting the fuel cell system
If the fuel cell system becomes difficult to start, have your vehicle checked
by your Toyota dealer immediately.
■ Symptoms indicating a malfunction with the power switch
If the power switch seems to be operating somewhat differently than usual,
such as the switch sticking slightly, there may be a malfunctio n. Contact
your Toyota dealer immediately.
2295-5. Using the driving support systems
5
Driving
MIRAI_OM_USA_OM62073U
WARNING
■When to disable the pre-collision system
In the following situations, disable the system, as it may not operate prop-
erly, possibly leading to an accident resulting in death or ser ious injury:
● When the vehicle is being towed
● When your vehicle is towing another vehicle
● When transporting the vehicle via truck, boat, train or similar means of
transportation
● When the vehicle is raised on a lift with the fuel cell system on and the tires
are allowed to rotate freely
● When inspecting the vehicle using a drum tester such as a chass is dyna-
mometer or speedometer tester, or when using an on vehicle whee l bal-
ancer
● When a strong impact is applied to the front bumper or front gr ille, due to
an accident or other reasons
● If the vehicle cannot be driven in a stable manner, such as when the vehi-
cle has been in an accident or is malfunctioning
● When the vehicle is driven in a sporty manner or off-road
● When the tires are not properly inflated
● When the tires are very worn
● When tires of a size other than specified are installed
● When tire chains are installed
● When a compact spare tire or an emergency tire puncture repair kit is used
● If equipment (snow plow, etc.) that may obstruct the radar sens or or front
camera is temporarily installed to the vehicle
2395-5. Using the driving support systems
5
Driving
MIRAI_OM_USA_OM62073U
WARNING
●When the tires have been excessively worn, or when the tire inf lation pres-
sure is low.
● When tires of a size other than specified are installed.
● Vehicle is driven in traffic lanes other than that highways and freeways.
● During emergency towing
■ Preventing LDA system malfunctio ns and operations performed by
mistake
● Do not modify the headlights or place stickers, etc. on the sur face of the
lights.
● Do not modify the suspension etc. If the suspension etc. needs to be
replaced, contact your Toyota dealer.
● Do not install or place anything on the hood or grille. Also, d o not install a
grille guard (bull bars, kangaroo bar, etc.).
● If your windshield needs repairs, contact your Toyota dealer.
■ Conditions in which functions may not operate properly
In the following situations, the functions may not operate prop erly and the
vehicle may depart from its lane. Drive safely by always paying careful
attention to your surroundings and operate the steering wheel t o correct the
path of the vehicle without relying solely on the functions.
● Vehicle is being driven around a sharp curve.
●Objects or patterns that could be mis-
taken for white (yellow) lines are pres-
ent on the side of the road (guardrails,
reflective poles, etc.).
2555-5. Using the driving support systems
5
Driving
MIRAI_OM_USA_OM62073U
WARNING
●Assisting the driver to judge proper following distance
The dynamic radar cruise control determines whether the followi ng dis-
tance between the driver’s own vehicle and a designated vehicle traveling
ahead is within a set range. It is not capable of making any ot her type of
judgement.Therefore, it is absolutely necessary for the driver to remain
vigilant and to determine whether or not there is a possibility of danger in
any given situation.
● Assisting the driver to operate the vehicle
The dynamic radar cruise control does not include functions whi ch will
prevent or avoid collisions with vehicles ahead of your vehicle . Therefore,
if there is ever any possibility of danger, the driver must tak e immediate
and direct control of the vehicle and act appropriately in orde r to ensure
the safety of all involved.
■ Situations unsuitable for dynamic radar cruise control
Do not use dynamic radar cruise control in any of the following situations.
Doing so may result in inappropriate speed control and could ca use an acci-
dent resulting in death or serious injury.
● Roads where there are pedestrians, cyclists, etc.
● In heavy traffic
● On roads with sharp bends
● On winding roads
● On slippery roads, such as those covered with rain, ice or snow
● On steep downhills, or where there are sudden changes between s harp up
and down gradients
Vehicle speed may exceed the set speed when driving down a stee p hill.
● At entrances to freeways and highways
● When weather conditions are bad enough that they may prevent the sen-
sors from detecting correctly (fog, snow, sandstorm, heavy rain, etc.)
● When there is rain, snow, etc. on the front surface of the rada r or front
camera
● In traffic conditions that require frequent repeated acceleration and decel-
eration
● During emergency towing
● When an approach warning buzzer is heard often
2785-5. Using the driving support systems
MIRAI_OM_USA_OM62073U■
Operation starting conditions
When the PKSB OFF indicator is not illuminated or flashing
(
P. 283, 419) and all of the fo llowing conditions are met, the
system operates.
Fuel cell system output restriction control
● The Parking Support Brake functi on (for static objects) is ON
(enabled).
● The vehicle speed is 10 mph (15 km/h) or less.
● There is a static obstacle in th e traveling direction of the vehicle
(6 to 13 ft. [2 to 4 m] ahead).
● The system determined that a stronger-than-normal brake opera-
tion was necessary to avoid a collision.
Brake control
● Fuel cell system output restrict ion control is being performed.
● The system determined that a n emergency brake operation was
necessary to av oid a collision.
■Operation ending conditions
In any of the following conditi ons, the system stops operating.
Fuel cell system output restriction control
● The Parking Support Brake function (for static objects) has been
turned OFF (disabled).
● The collision became a voidable with normal brake operation.
● The static object is no longer in the traveling direction of th e vehi-
cle (6 to 13 ft. [2 to 4 m] ahead).
Brake control
● The Parking Support Brake function (for static objects) has been
turned OFF (disabled).
● Approximately 2 seconds elapsed after the vehicle was stopped
by brake control.
● The brake control was depress ed after the vehicle was stopped
by brake control.
● The static obstacle is no longer in the traveling direction of the
vehicle (6 to 13 ft. [2 to 4 m] ahead).
Operation conditions