2017 TOYOTA MIRAI diagram

391-1. For safe use
1
For safety and security
MIRAI_OM_USA_OM62023U
Your vehicle is equipped with ADVANCED AIRBAGS designed based
on the US motor vehicle safety standards (FMVSS208). The airbag
sensor assembly (ECU) controls airbag dep loyment based on infor-
mation obtained from the sensors et c. shown in the system compo-
nents diagram above. This informat ion includes crash severity and
occupant information. As the airbags deploy, a chemical reaction in
the inflators quickly fills the airbag s with non-toxic gas to help restrain
the motion of the occupants.
WARNING
■ SRS airbag precautions
Observe the following precautions regarding the SRS airbags.
Failure to do so may cause death or serious injury.
● The driver and all passengers in the vehicle must wear their seat belts
properly.
The SRS airbags are supplemental devices to be used with the seat belts.
● The SRS driver airbag deploys with considerable force, and can cause
death or serious injury especially if the driver is very close to the airbag.
The National Highway Traffic Safety Administration (NHTSA) advises:
Since the risk zone for the driver’s airbag is the first 2 - 3 in. (50 - 75 mm)
of inflation, placing yourself 10 in. (250 mm) from your driver airbag pro-
vides you with a clear margin of safety. This distance is measured from
the center of the steering wheel to your breastbone. If you sit less than 10
in. (250 mm) away now, you can change your driving position in several
ways:
• Move your seat to the rear as far as you can while still reaching the ped-
als comfortably.
• Slightly recline the back of the seat.
Although vehicle designs vary, many drivers can achieve the 10 in. (250
mm) distance, even with the driver seat all the way forward, simply by
reclining the back of the seat somewhat. If reclining the back of your
seat makes it hard to see the road, raise yourself by using a firm, non-
slippery cushion, or raise the seat if your vehicle has that feature.
• If your steering wheel is adjustable, tilt it downward. This points the air-
bag toward your chest instead of your head and neck.
The seat should be adjusted as recommended by NHTSA above, while
still maintaining control of the foot pedals, steering wheel, and your view
of the instrument panel controls.

782. Fuel cell vehicle
MIRAI_OM_USA_OM62023U
Fuel cell vehicle characteristics
This diagram is for illustrative purposes only and may differ from the
actual vehicle.
Fuel cell vehicles efficiently use electricity, which is generated
by a chemical reaction between hydrogen and oxygen in a fuel
cell stack, and electricity charged in a traction battery to drive
the electric motor (traction motor).
The fuel is H
2 (compressed hydrogen gas), so the exhaust is
only water and water vapor. As they do not release emissions
such as CO
2 (Carbon Dioxide) and NOx (Nitrogen Oxides), fuel
cell vehicles are environm entally friendly vehicles.
Fuel cell vehicle components
Fuel cell stack
Hydrogen tanks
Traction battery Tailpipe
Fuel cell converter
Electric motor (traction motor)

822. Fuel cell vehicle
MIRAI_OM_USA_OM62023U
Fuel cell vehicle precautions
The fuel cell vehicle has hydrogen tanks (10150 psi [70 MPa,
714 kgf/cm2, 700 bar]), fuel cell stack, and hydrogen pipelines as
hydrogen-related components. Pay attention to all warning labels
attached to the vehicle.
This diagram is for illust rative purposes only and may differ from the
actual vehicle.
Hydrogen-related components
Warning label
Hydrogen detectors
Fuel cell stack Hydrogen tanks
Hydrogen tank valves
Hydrogen pipelines

832. Fuel cell vehicle
2
Fuel cell system
MIRAI_OM_USA_OM62023U
The fuel cell vehicle has high-voltage components (about 650 V maxi-
mum) such as a fuel cell stack, traction battery, power control unit,
high-voltage cables (which are distinguished from low-voltage cables
by their orange covers), electric motor (traction motor), etc., and high-
temperature parts such as the radiator for cooling. Pay attention to all
warning labels attached to the vehicle.
This diagram is for illust rative purposes only and may differ from the
actual vehicle.
High-voltage and high-temperature components
Warning label
Power control unit
High-voltage cables (orange)
Fuel cell stack
Traction battery
Service plug
Fuel cell converter Electric motor (traction motor)
Air conditioning compressor
Radiator for inverter cooling
Radiator for fuel cell stack
cooling
Auxiliary inverter
Cabin coolant heater

2275-5. Using the driving support systems
5
Driving
MIRAI_OM_USA_OM62023U■
Buzzer operation and distance to an obstacle
A buzzer sounds when t
he sensors are operating.
● The buzzer sounds faster as the vehicle approac hes an obstacle.
When the vehicle comes within the following distance of the
obstacle, the buzzer so unds continuously.
• Front corner sensors: A pproximately 1.0 ft. (30 cm)
• Rear corner sensors: Approximately 1.0 ft. (30 cm)
• Rear center sensors: Approximately 1.2 ft. (35 cm)
● When 2 or more obstacles ar e detected simultaneously, the
buzzer system responds to the nearest obstacle. If one or both
come within the above distanc es, the beep will repeat a long
tone, followed by fast beeps.
Approximately 4.9 ft. (150 cm)
Approximately 2.0 ft. (60 cm)
The diagram shows the detection
range of the sensors. Note that the
sensors cannot detect obstacles
that are extremely close to the
vehicle.
The range of the sensors may
change depending on the shape of
the object, etc.
Detection range of the sensors