2017 TOYOTA MIRAI fuel system

1083. Instrument cluster
MIRAI_OM_USA_OM62023U
Settings display
When using each equipment, it is possible to toggle the switch and
change the settings of the meter display. • Intuitive parking assist ( →P. 223)
• BSM (Blind Spot Monitor) ( →P. 245)
•Clock ( →P. 280)
• Customize ( →P. 439)
The multi-information display is
operated using the meter control
switches.
Select an item/change pages
Enter/Set
Return to the previous
screen
To toggle through the items, pr ess or of the meter control
switches ( →P. 108), select [drive information] on the multi-
information display, and press or .
■Energy monitor
Displays fuel cell system status.
Operating the meter control switches
Drive information
When the vehicle is powered by the fuel cell
stack
When the vehicle is powered by the traction
battery

1103. Instrument cluster
MIRAI_OM_USA_OM62023U■
Fuel cell system indicator and ECO Score
The output power of the fuel cell system, regeneration level display,
and the ECO driving is scored and displayed.
Charge area
Shows that energy is being
recovered via the regenera-
tive brake.
Eco area
Shows that the vehicle is
being driven in an Eco-
friendly manner.
Power area
Shows that an Eco-friendly dr iving range is being exceeded.
ECO Score
Displays the driving conditions in 5 stages, which are separated
in the 3 patterns of ECO Start, ECO Cruise and ECO Stop. Also,
each time the vehicle is stopped, that number is displayed. (The
number for each take off is reset and not counted)
● By maintaining the indicator display in the ECO area or Charge
area, Eco-friendly driving is possible.
● Charge area indicates regeneration
* status. Regenerated energy
will be used to charge t he traction battery.
*: When used in this manual, “regeneration” refers to the conversion of
energy created by the movement of the vehicle into electrical energy.

1123. Instrument cluster
MIRAI_OM_USA_OM62023U■
Drive monitor
Driving time
Displays the amount of time
since starting
*1 the fuel cell
system or resetting
*2.
Average vehicle speed
Displays the average vehicle
speed since starting
*1 the
fuel cell system or reset-
ting
*2.
Average fuel consumption
Displays the average fuel consumption since starting
*1 the fuel
cell system or resetting
*2.
*1: When the odometer, traveled distance since starting, or blank is dis-
played in the odometer and trip meter of the main display
*2: When trip meter A or trip meter B is displayed in the odometer andtrip meter of the main display

1133. Instrument cluster
3
Instrument cluster
MIRAI_OM_USA_OM62023U■
ECO diary
To toggle through the items, press on the meter control switches
( → P. 108) to select the tab and then press either or .
Daily history
Press either or of the
meter control switches to scroll
through the days displayed.
Monthly history
Press either or of the
meter control switches to scroll
through the months displayed.
Press on the meter control switches ( →P. 108) to return.
■Power meter
Displays the output power and
regeneration level of the fuel cell
system.

1143. Instrument cluster
MIRAI_OM_USA_OM62023U
■Suspension of the settings display
In the following situations, the settings display using the meter control
switches will be suspended.
●When a warning message appears on the multi-information display
● When the vehicle begins to move
■ When the 12-volt battery terminal is disconnected and reconnected
The following data is reset when the 12-volt battery terminal is disconnected
and reconnected.
●1-minute fuel consumption
● 5-minute fuel consumption
● Driving time
● Average vehicle speed
● Average fuel consumption
■ Liquid crystal display
→P. 106
NOTICE
■During setting up the display
To prevent 12-volt battery discharge, ensure that the fuel cell system is
operating while setting up the display features.

1184-1. Key information
MIRAI_OM_USA_OM62023U■
Electronic key battery depletion
●The standard battery life is 1 to 2 years.
● If the battery becomes low, an alarm will sound in the cabin when the fuel
cell system stops. ( →P. 376)
● As the electronic key always receives radio waves, the battery will become
depleted even if the electronic key is not used. The following symptoms indi-
cate that the electronic key battery may be depleted. Replace the battery
when necessary. ( →P. 353)
• The smart key system or the wireless remote control does not operate.
• The detection area becomes smaller.
• The LED indicator on the key surface does not turn on.
● To avoid serious deterioration, do not leave the electronic key within 3 ft. (1
m) of the following electrical appl iances that produce a magnetic field:
•TVs
• Personal computers
• Cellular phones, cordless phones and battery chargers
• Recharging cellular phones or cordless phones
• Table lamps
• Induction cookers
■ Replacing the battery
→P. 353
■ Confirmation of the registered key number
The number of keys already registered to the vehicle can be confirmed. Ask
your Toyota dealer for details.
■ If a wrong key is used
The key cylinder rotates freely to isolate inside mechanism.

1314-2. Opening, closing and locking the doors
4
Operation of each component
MIRAI_OM_USA_OM62023U
Smart key system
●Locks and unlocks the doors ( →P. 120)
● Opens the trunk ( →P. 126)
● Starts and stops the fuel cell system ( →P. 172)
■Antenna location
The following operations can be performed simply by carrying
the electronic key on your person, for example in your pocket.
The driver should always carry the electronic key.
Antennas outside the cabin
Antennas inside the cabin
Antenna inside the trunk
Antenna outside the trunk

1324-2. Opening, closing and locking the doors
MIRAI_OM_USA_OM62023U■
Effective range (areas within whic h the electronic key is detected)
■ Alarms and warning indicators
A combination of exterior and interior alarms as well as warning messages
shown on the multi-information display are used to prevent theft of the vehicle
and accidents resulting from erroneous operation. Take appropriate mea-
sures in response to any warning message on the multi-information display.
(→P. 376)
The following table describes circumstances and correction procedures when
only alarms are sounded.
When locking or unlocking the
doors
The system can be operated
when the electronic key is within
about 2.3 ft. (0.7 m) of an outside
door handle. (Only the doors
detecting the key can be oper-
ated.)
When opening the trunk
The system can be operated when the electronic key is within
about 2.3 ft. (0.7 m) of the trunk release button.
When starting the fuel cell system or changing power switch
modes
The system can be operated when the electronic key is inside the
vehicle.
AlarmSituationCorrection procedure
Exterior alarm sounds
once for 5 seconds The trunk was closed
while the electronic key
was still inside the trunk
and all the doors were
locked.
Retrieve the electronic
key from the trunk and
close the trunk lid.
An attempt was made
to lock the vehicle while
a door was open. Close all of the doors
and lock the doors
again.
Interior alarm sounds
continuously The power switch was
turned to ACCESSORY
mode while the driver’s
door was open (or the
driver’s door was
opened while the
power switch was in
ACCESSORY mode).Turn the power switch
off and close the
driver’s door.