2017 TOYOTA MIRAI warning light

601-1. For safe use
MIRAI_OM_USA_OM62023U
WARNING
■When installing a child restraint system
Observe the following when installing child restraint system to the front pas-
senger seat if it is unavoidable. The front passenger SRS airbag inflates
with considerable speed and force that if not observed may lead to death or
serious injury to the child.
● Never install a rear-facing child restraint system on the front passenger
seat even if the “AIR BAG OFF” indicator light is illuminated. In the event
of an accident, the force of the rapid inflation of the front passenger airbag
can cause death or serious injury to the child if the rear-facing child
restraint system is installed on the front passenger seat.
● A forward-facing child restraint system may be installed on the front pas-
senger seat only when it is unavoidable. A child restraint system that
requires a top tether strap should not be used in the front passenger seat
since there is no top tether strap anchor for the front passenger seat.
If the head restraint interferes with the child restraint system installation
and the head restraint can be removed, remove the head restraint.
● Do not allow the child to lean his/her head or any part of his/her body
against the door or the area of the seat, front pillars or roof side rails from
which the SRS side airbags or SRS curtain shield airbags deploy even if
the child is seated in the child restraint system. It is dangerous if the SRS
side and curtain shield airbags inflate, and the impact could cause death
or serious injury to the child.
● When a booster seat is installed, always ensure that the shoulder belt is
positioned across the center of the child’s shoulder. The belt should be
kept away from the child’s neck, but not so that it could fall off the child’s
shoulder.
●A forward-facing child restraint system
may be installed on the front passenger
seat only when it is unavoidable. When
installing a forward-facing child restraint
system on the front passenger seat,
move the seat as far back as possible,
and raise the seat to the upper most
position, even if the “AIR BAG OFF”
indicator light is illuminated.

852. Fuel cell vehicle
2
Fuel cell system
MIRAI_OM_USA_OM62023U
There is an air intake vent beside
the rear left seat for the purpose
of cooling the traction battery. If
the air intake vent is blocked, it
could lead to a reduction in trac-
tion battery output.
■ If a warning light comes on, a warn ing message is displayed, or the 12-
volt battery connection is disconnected
The fuel cell system may not be able to restart.
If the “READY” indicator does not come on, even when the start pro\
cedure is
repeated, contact your Toyota dealer.
■ If “Hydrogen Leakage Detected Visit Your Dealer” is displayed on the
multi-information display
A small amount of hydrogen gas may be leaking. Have the vehicle inspected
immediately at the nearest Toyota dealer.
■ If “FC System Shutdown due to Hydrogen Leakage Stop Your Vehicle in
a Safe Place and Contact Your Dealer ” is displayed on the multi-informa-
tion display
● Hydrogen gas may be leaking.
When hydrogen gas is leaking or some other malfunction is detected:
→P. 9 0
● The air conditioning system will shut off automatically.
■ Running out of fuel
When the vehicle has run out of fuel and the fuel cell system cannot be
started, refuel the vehicle until the low fuel level warning light ( →P. 371) turns
off before trying to restart. It may not be able to restart if the refueled amount
is too low (less than about 2.7 lb. [1.2 kg]).
Traction battery air intake vent

892. Fuel cell vehicle
2
Fuel cell system
MIRAI_OM_USA_OM62023U■
Hydrogen Gas Characteristics
●Hydrogen gas ignites more easily than gasoline. However, it is lighter than
air and disperses quickly. So even if hydrogen were to leak from the system,
it would quickly dilute until it is no longer flammable.
● As with gasoline and natural gas, hydrogen gas is not dangerous if it is han-
dled properly. Thoroughly read and understand the characteristics shown in
the table below.
Hydrogen gas
LPG
(Liquid Petroleum Gas)
Gasoline
Normal stateGaseous
(Lighter than air)Gaseous
(Heavier than air)
Volatile liquid
(evaporates
easily)
(Heavier than air)
Ease of
ignitionEasier than
gasolineAt the same level
as gasoline—
Ease of
accumulation
• Disperses
upward and is
diluted to safe
concentrations
in open air
• Does not adhere to
clothing
• Spreads on the
ground or floor
• Does not adhere to
clothing• Spreads on theground or floor
• Adheres to clothing
Detectability
•Due to itscolorless and
odorless state,
difficult to detect
by sight or smell
• Vehicle
hydrogen
detectors will
display a
warning on the
multi-
information
display
• Detectable by odor and gas
leaking noise• Detectable bycolor and odor

97
Instrument cluster3
MIRAI_OM_USA_OM62023U3. Instrument cluster
Warning lights and indicators .......................... 98
Gauges and meters .......... 102
Multi-information display ... 107

983. Instrument cluster
MIRAI_OM_USA_OM62023U
Warning lights and indicators
The warning lights and indicators inform the driver of the status
of the vehicle’s various systems.
For the purpose of explanation, the following illustration dis-
plays all warning lights a nd indicators illuminated.

993. Instrument cluster
3
Instrument cluster
MIRAI_OM_USA_OM62023U
Warning lights inform the driver of malfunctions in the indicated vehi-
cle’s systems.
Warning lights
*1
Hydrogen leak warning
light ( →P. 369)*1
Slip indicator ( →P. 370)
*1
Brake system warning
light (→P. 369)Parking brake warning
light (→P. 371)
*1
Charging system
warning light ( →P. 369)Open door warning light
(→P. 371)
*1High coolant
temperature warning
light ( →P. 369)Low fuel level warning
light (→P. 371)
*1
Brake system warning
light (→P. 369)Driver’s and front
passenger’s seat belt
reminder light ( →P. 3 7 1 )
*1
SRS warning light
(→P. 370)*1
Master warning light
(→P. 371)
*1
ABS warning light
(→P. 370)*1
Tire pressure warning
light ( →P. 371)
*1
(Red/
Ye l l o w )
Electric power steering
system warning light
( →P. 370)*3Brake Override System/
Drive-Start Control
warning light ( →P. 372)
*1, 2
PCS warning light
(→P. 370)

1003. Instrument cluster
MIRAI_OM_USA_OM62023U
*1: These lights turn on when the power switch is turned to ON mode to indi-cate that a system check is being performed. They will turn off after the fuel
cell system is on, or after a few seconds. There may be a malfunction in a
system if the lights do not come on, or turn off. Have the vehicle inspected
by your Toyota dealer.
*2: The light flashes to indicate a malfunction.
*3: This light illuminates on the multi-information display.
The indicators inform the driver of the operating state of the vehicle’s
various systems.
Indicators
Turn signal indicator
( →P. 185)Intuitive parking assist
indicator ( →P. 224)
Headlight indicator
( →P. 187)
*1, 2
Slip indicator ( →P. 233)
Headlight high beam
indicator ( →P. 188)
*1, 3
VSC OFF indicator
(→P. 234)
Automatic High Beam
indicator ( →P. 190)
*1, 3
PCS warning light
(→P. 239)
“READY” indicator
( →P. 172)
*4
BSM indicators
(→P. 246)
Radar cruise control
indicator ( →P. 203)
*4, 5BSM outside rear view
mirror indicators
(→P. 245)
Cruise control “SET”
indicator ( →P. 203) Security indicator
(
→P. 72, 74)
Cruise control indicator
( →P. 203)
Shift position indicator
(→P. 179)
LDA indicator ( →P. 216)
*6
ECO MODE indicator
(→P. 181)

1013. Instrument cluster
3
Instrument cluster
MIRAI_OM_USA_OM62023U
*1: These lights turn on when the power switch is turned to ON mode to indi-cate that a system check is being performed. They will turn off after the fuel
cell system is on, or after a few seconds. There may be a malfunction in a
system if the lights do not come on, or turn off. Have the vehicle inspected
by your Toyota dealer.
*2: The light flashes to indicate that the system is operating.
*3: The light turns on when the system is off.
*4: In order to confirm operation, the BSM outside rear view mirror indicatorsilluminate in the following situations:
• When the power switch is turned to ON mode while the BSM settings are set to ON.
• When the BSM settings are set to ON while the power switch is in ON mode.
If the system is functioning correctly, the BSM outside rear view mirror indi-
cators will turn off after a few seconds.
If the BSM outside rear view mirror indicators do not illuminate or do not
turn off, there may be a malfunction in the system.
If this occurs, have the vehicle inspected by your Toyota dealer.
*5: This light illuminates on the outside rear view mirrors.
*6: This light illuminates on the main display.
*6
POWER MODE
indicator ( →P. 181)*6
(Amber)
Power restriction
indicator (→P. 102)
Br mode indicator
( →P. 181) H
2O indicator
( →P. 173)
*6
(Blue)
Power restriction
indicator ( →P. 102) “AIR BAG ON/OFF”
indicator (
→P. 49)
WARNING
■If a safety system warning light does not come on
Should a safety system light such as the ABS and SRS warning lights not
come on when you start the fuel cell system, this could mean that these
systems are not available to help protect you in an accident, which could
result in death or serious injury. Have the vehicle inspected by your Toyota
dealer immediately if this occurs.