2023 TOYOTA MIRAI tow

2825-5. Using the driving support systems
Owners Manual_USA_M62064_en
■Parking Support Brake
function (moving vehicles
rear of the vehicle)
 P.290
■Parking Support Brake
function (pedestrians rear
of the vehicle)
 P.291
*: If equipped
WARNING
■Cautions regarding the use of
the system
Do not overly rely on the system,
as doing so may lead to an acci-
dent.
Always drive while checking the
safety of the surroundings of the
vehicle.
Depending on the vehicle and
road conditions, weather, etc., the
system may not operate.
The detection capa bilities of sen-
sors and radars are limited.
Always drive while checking the
safety of the surroundings of the
vehicle.
●The driver is solely responsible
for safe driving. Always drive
carefully, taking care to observe
your surroundings. The Parking
Support Brake system is
designed to provide support to
lessen the severity of collisions.
However, it may not operate in
some situations.
●The Parking Support Brake sys-
tem is not designed to stop the
vehicle completely. Additionally,
even if the system has stopped
the vehicle, it is necessary to
depress the brake pedal imme-
diately as brake control will be
canceled after approximately 2
seconds.
●It is extremely dangerous to
check the system operations by
intentionally driving the vehicle
into the direction of a wall, etc.
Never attempt such actions.
■When to disable the Parking
Support Brake
In the following situations, disable
the Parking Suppor t Brake as the
system may opera te even though
there is no possibility of a colli-
sion.
●When inspecting the vehicle
using a chassis roller, chassis
dynamo or free roller
●When loading the vehicle onto a
boat, truck or other transport
vessel
●If the suspension has been
modified or tires of a size other
than specified are installed
●If the front of the vehicle is
raised or lowered due to the
carried load
●When equipment that may
obstruct a sensor is installed,
such as a towing eyelet, bumper
protector (an additional trim
strip, etc.), bicycle carrier, or
snow plow
●When using automatic car
washing devices
●If the vehicle cannot be driven in
a stable manner, such as when
the vehicle has been in an acci-
dent 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

2835-5. Using the driving support systems
Owners Manual_USA_M62064_en
5
Driving
The Parking Support Brake can
be enabled/disabled on the
multi-information display. All of
the Parking Support Brake func-
tions (static objects front and
rear of the vehicle, moving vehi-
cles rear of the vehicle, pedestri-
ans rear of the vehicle and static
objects around the vehicle) are
enabled/disabled simultane-
ously.
Use the meter control switches
to enable/disable the parking
support brake. ( P.106)
1 Press or to select .
2 Press or to select
“ PKSB” and then press
.
When the Parking Support Brake is
disabled, the PKSB OFF indicator
( P.97) illuminates. To re-enable the
system when it
was disabled, select on the
multi-information display, select
“ PKSB” and then On. If dis-
abled using this method, the sys-
tem will not be re-enabled by
turning the power switch off and
then to ON.
If the fuel cell system output restric-
tion control or brake control oper-
ates, a buzzer will sound and a
message will be displayed on the
multi-information display and head-
up display (if equipped), multimedia
display, to alert the driver.
Depending on the situation, fuel cell
system output restriction control will
operate to either limit acceleration
or restrict output as much as possi-
ble.
 Fuel cell system output
restriction control is operating
(acceleration restriction)
Acceleration greater than a certain
amount is restric ted by the system.
Multimedia display: No warning dis-
played
Multi-information display: “Object
Detected Acceleration Reduced”
Head-up display (if equipped): No
warning displayed
PKSB OFF indicator: Not illumi-
nated
Buzzer: Does not sound
WARNING
●When a tire chains, compact
spare tire or an emergency tire
puncture repair kit is used
●When towing with the vehicle
■Precautions for the suspen-
sion
Do not modify the suspension of
the vehicle. If the height or tilt of
the vehicle is changed, the sen-
sors may not be able to detect
detectable objects and the system
may not operate correctly, possi-
bly leading to an accident.
Enabling/Disabling the
Parking Support Brake
Display and buzzer for
fuel cell system output
restriction control and
brake control

3616-3. Using the storage features
Owners Manual_USA_M62064_en
6
Interior features
 Side covers
Lift the side covers and remove it.
Ty p e A
Type B
 Luggage mat
1 Pull the strap upwards and lift
up the luggage mat. 2
Lift the luggage mat until it
engages with the hook.
Type A
The warning reflector can be
stowed underneath the luggage
mat.
Trunk features
Luggage mats
NOTICE
■To prevent damage to the
hook for the luggage mat
Do not hang a grocery bag or any
other object from the hook.
Warning reflector

3706-4. Using the other interior features
Owners Manual_USA_M62064_en
WARNING
●Do not allow magnetic objects
to come near the wireless char-
ger
●Do not perform charging if the
charging area is dirty
●Do not cover with cloth, etc.,
and charge
NOTICE
■Conditions in which the func-
tion may not operate cor-
rectly
In the following conditions, it may
not operate correctly
●The portable device is fully
charged
●When a portable device is being
charged by a wired connection
●There is foreign matter between
the charge area and portable
device
●When the temperature near the
charging tray is 95°F (35°C) or
more due to being in direct sun-
light, etc.
●The temperature of the portable
device gets higher from
charging
●The charging surface of the por-
table device is facing up
●When a portable device is larger
than the charging tray
●The small portable device such
as foldable type is placed in an
area misaligned from the
charge area
●The camera lens protrudes 0.12
in. (3 mm) or more from the sur-
face of the portable device
●Near a TV tower, electric power
plant, gas station, radio station,
large display, a irport or other
facility that gen erates strong
radio waves or electrical noise
●The electronic key is not inside
the vehicle
●When any of the following
objects are caug ht between the
device and charging surface,
resulting in a gap of 0.08 in. (2
mm) or more between the
charging surface of a portable
device and the charging area:
• Thick cases or covers
• Thick decorations
• A case or cover with convex shape around the camera lens
• Accessories, such as finger rings, straps, etc.
●When the portable device is in
contact with, or is covered by
the following metallic objects
• Cards to which aluminum foil is attached
• Cigarette boxes that have alu- minum foil inside
• Metallic wallets or bags
• Coins
• Hand warmers made of metal
• Media such as CDs and DVDs
• Metallic decorations
• Metallic cases or covers
• A case which has magnet in it on the charging side of the por-
table device
●When other wireless keys (that
emit radio waves) are being
used nearby

4047-3. Do-it-yourself maintenance
Owners Manual_USA_M62064_en
7-3.Do-it-yourself maintenance
Do-it-yourself ser vice
precautions
If you perform maintenance
by yourself, be sure to fol-
low the correct procedure
as given in these sections.
Maintenance
ItemsParts and tools
12-volt battery
condition
( P.413)
•Grease
• Conventional
wrench (for ter-
minal clamp
bolts)
Brake fluid
level ( P.412)
• FMVSS No.116
DOT 3 or SAE
J1703 brake fluid
FMVSS No.116
DOT 4 or SAE
J1704 brake fluid
• Rag or paper towel
• Funnel (used only for adding
brake fluid)
Inverter cool-
ant level
( P.410)
• “Toyota Super
Long Life Cool-
ant” or a similar
high quality eth-
ylene glycol-
based non-sili-
cate, non-amine,
non-nitrite and
non-borate cool-
ant with long-life
hybrid organic
acid technology
For the U.S.A.:
“Toyota Super
Long Life Cool-
ant” is pre-mixed
with 50% cool-
ant and 50%
deionized water.
For Canada:
“Toyota Super
Long Life Cool-
ant” is pre-mixed
with 55% cool-
ant and 45%
deionized water.
• Funnel (used only for adding
coolant)
Fuses
( P.438)
• Fuse with same
amperage rating
as original
• Flathead screw- driver
Headlight aim
( P.442)• Phillips-head
screwdriver
Radiator and
condenser
( P.411)

ItemsParts and tools

4197-3. Do-it-yourself maintenance
Owners Manual_USA_M62064_en
7
Maintenance and care
■Situations in which the tire
pressure warning system may
not operate properly
●In the following cases, the tire
pressure warning system may not
operate properly.
• If non-genuine Toyota wheels are used.
• If a tire has been replaced with a tire that is not an OE (Original
Equipment) tire.
• If a tire has been replaced with a tire that is not of the specified size.
• If tire chains, etc. are installed.
• If a window tint that affects the
radio wave signals is installed.
• If there is a lot of snow or ice on
the vehicle, particularly around the
wheels or wheel housings.
• If the tire inflation pressure is
much higher than the specified
level.
• If wheels not equipped with tire
pressure warning valves and
transmitter are used.
• If the ID code on the tire pressure
warning valves and transmitters is
not registered in the tire pressure
warning computer.
●Performance may be affected in
the following situations.
• When driving near a TV tower, electric power plant, gas station,
radio station, large display, airport
or other facility that generates
strong radio waves or electrical
noise
• When carrying a portable radio, cellular phone, cordless phone or
other wireless communication
device
If tire position information is not cor-
rectly displayed due to the radio
wave conditions, the display may be
corrected by changing the location
of the vehicle as the radio wave
conditions may change.
●When the vehicle is stopped, the
time taken for the warning to start
or turn off may be longer.
●When the inflation pressure of a
tire drops rapidly, for example when a tire has burst, the warning
may not operate.
■Warning performance of the tire
pressure warning system
The warning of the tire pressure
warning system w ill change in
accordance the conditions under
which it was initia lized. For this rea-
son, the system may give a warning
even if the tire pressure does not
reach a low enough level, or if the
pressure is higher than the pressure
that was adjusted to when the sys-
tem was initialized.
■Tire pressure warning system
certification
 P.569
When replacing the tires or
wheels, the tire pressure warn-
ing valves and transmitters must
be installed to the wheels which
will be installed to the vehicle.
When new tire pressure warning
valves and transmitters are
installed, new ID codes must be
registered in the tire pressure
warning computer and the tire
pressure warning system must
be initialized. ( P.422)
■Replacing tires and wheels
If the ID codes of the tire pressure
warning valves and transmitters are
not registered, the tire pressure
warning system will not work prop-
erly. In this case, after driving for
about 10 minutes, the tire pressure
warning light will blink for approxi-
mately 1 minute and then illuminate
to indicate a system malfunction.
Installing tire pressure
warning valves and trans-
mitters

4377-3. Do-it-yourself maintenance
Owners Manual_USA_M62064_en
7
Maintenance and care
1 Take out the mechanical key.
2 Remove the cover.
To prevent damage to the key,
cover the tip of the flathead screw-
driver with a rag.
3Remove the depleted battery.
Insert a new battery with the “+” ter-
minal facing up.
Replacing the batteryWARNING
■Battery precautions
Observe the following precau-
tions.
Failure to do so may result in
death or serious injury.
●Do not swallow the battery.
Doing so may cause chemical
burns.
●A coin battery or button battery
is used in the electronic key. If a
battery is swa llowed, it may
cause severe chemical burns in
as little as 2 hours and may
result in death or serious injury.
●Keep away new and removed
batteries from children.
●If the cover cannot be firmly
closed, stop using the electronic
key and stow the key in the
place where children cannot
reach, and then contact your
Toyota dealer.
●If you accidentally swallow a
battery or put a battery into a
part of your b ody, get emer-
gency medical attention imme-
diately.
■To prevent battery explosion
or leakage of flammable liq-
uid or gas
●Replace the battery with a new
battery of the same type. If a
wrong type of battery is used, it
may explode.
●Do not expose batteries to
extremely low pr essure due to
high altitude or extremely high
temperatures.
●Do not burn, bre ak or cut a bat-
tery.

445
Owners Manual_USA_M62064_en
8
8
When trouble arises
When trouble arises
8-1. Essential informationEmergency flashers .... 446
If your vehicle has to be stopped in an emergency.................................. 446
If the vehicle is submerged or water on the road is ris-
ing ............................. 4478-2. Steps to take in an emer-
gency
If your vehicle needs to be towed ......................... 449
If you think s omething is
wrong......................... 453
If a warning light turns on or a warning buzzer sounds.................................. 454
If a warning message is dis- played ........................ 464
If you have a flat tire .... 467
If the fuel cell system will not start ........................... 480
If you lose your keys ... 481
If the fuel door cannot be opened ........ ..............482
If the electro nic key does
not operate properly .. 482
If the 12-volt battery is dis- charged ..................... 485
If your vehicle overheats .................................. 490
If the vehicle becomes stuck .................................. 494