sensor TOYOTA MIRAI 2023 Repair Manual

3065-5. Using the driving support systems
Owners Manual_USA_M62064_en
■If you feel that the vehicle is
approaching close to a sur-
rounding vehicle, object, per-
son, or gutter
 P. 3 0 4
■Perpendicular exiting (for-
ward/reverse) function
Do not use exiting (for-
ward/reverse) function in any situa-
tion other than when exiting a
parallel parking spot. If assistance is
started unintentionally, depress the
brake pedal and stop the vehicle,
then press the Advanced Park main
switch to cancel assistance.
■Situations in which the perpen-
dicular exiting (forward /
reverse) function will not oper-
ate
In situations such as the following,
the perpendicular exiting (for-
ward/reverse) func tion will not oper-
ate:
●When a vehicle which is waiting to
park is in the exit direction
●When a wall, column, or person is
detected as near a front or rear
center or corner sensor
■When the brakes have been
operated
 P. 3 0 4
The parallel parking function can
be used if the target parking
space can be detected when the
vehicle is stopped close and
aligned with the center of the
parking space. Also, depending
on the condition of the parking
space, etc., if it is necessary to
change the direction of travel of
the vehicle, the shift position can
be changed by assistance con-
trol.
■Parking using the parallel
parking function
1 Stop the vehicle with it
aligned near the center of the
target parking space.
If there are parking space
lines
Advanced Park Parallel
parking function

3115-5. Using the driving support systems
Owners Manual_USA_M62064_en
5
Driving
■If you feel that the vehicle is
approaching close to a sur-
rounding vehicle, object, per-
son, or gutter
 P. 3 0 4
■Parallel exiti ng function
Do not use parallel exiting function
in any situation other than when
exiting a parallel parking spot. If
assistance is star ted unintention-
ally, depress the brake pedal and
stop the vehicle, then press the
Advanced Park ma in switch to can-
cel assistance.
■Situations in which the parallel
exiting function will not operate
In situations such as the following,
the parallel exiting function will not
operate:
●When vehicles waiting at a traffic
signal in the exit direction
●When a vehicle i s stopped in the
area behind where the vehicle will
exit
●When a wall, column, or person is
detected as near a front or rear
side sensor
●When the vehicle has been
parked on a curb and a side sen-
sor detects th e road surface
●When a vehicle is not parked in
front of the vehicle
●When there is ex cessive space
between the front of the vehicle
and a parked vehicle
■When the brakes have been
operated
 P.304
The memory function can be
used to park in a previously reg-
istered parking space, even if
there are no parking space lines
or adjacent parked vehicles.
Up to 3 parking spaces can be
registered.
Advanced Park Memory
function

3235-5. Using the driving support systems
Owners Manual_USA_M62064_en
5
Driving
road surfaces by controlling the
brakes, fuel cell system output,
steering assist.
■The Secondary Collision
Brake
When the SRS airbag sensor
detects a collision and the sys-
tem operates, the brakes and
brake lights are automatically
controlled to reduce the vehicle
speed and help reduce the pos-
sibility of further damage due to
a secondary collision.
■When the TRAC/VSC/ABS sys-
tems are operating
The slip indicator light will flash
while the TRAC/VSC/ABS systems
are operating.
■Disabling the TRAC system
If the vehicle gets stuck in mud, dirt
or snow, the TRAC system may
reduce power from the fuel cell sys-
tem to the wheels. Pressing to
turn the system off may make it eas-
ier for you to rock the vehicle in
order to free it.
To turn the TRAC system off, quickly
press and release .
The “Traction Control Turned OFF”
will be shown on the multi-informa-
tion display. Press again to
turn the system
back on.
“Traction Control Turned OFF”
■Turning off both TRAC and VSC
systems
To turn the TRAC and VSC systems
off, press and hold for more
than 3 seconds while the vehicle is
stopped.
The VSC OFF indicator light will
come on and the “Traction Control
Turned OFF” will be shown on the
multi-information display.
*
Press again to turn the system
back on.
*: PCS will also be disabled (only
Pre-Collision warning is avail-
able). The PCS warning light will
come on and a message will be
displayed on the multi-information
display. ( P.230, 456)
■When the message is dis-
played on the multi-information
display showing that TRAC has
been disabled even if has
not been pressed
TRAC is temporary deactivated. If
the information continues to show,
contact your Toyota dealer.

3255-5. Using the driving support systems
Owners Manual_USA_M62064_en
5
Driving
■Operating conditions of Active
Cornering Assist
The system operates when the fol-
lowing occurs.
●TRAC/VSC can operate
●The driver is at tempting to accel-
erate while turning
●The system detects that the vehi-
cle is drifting to the outer side
●The brake pedal is released
■Reduced effectiveness of the
EPS system
The effectiveness of the EPS sys-
tem is reduced to prevent the sys-
tem from overheating when there is
frequent steering input over an
extended period of time. The steer-
ing wheel may feel heavy as a
result. Should this occur, refrain
from excessive steering input or
stop the vehicle and turn the fuel
cell system off. The EPS system
should return to normal within 10
minutes.
■Secondary Collision Brake
operating conditions
The system operates when the SRS
airbag sensor detects a collision
while the vehicle is in motion. How-
ever, the system does not operate in
any of the following situations.
●When driving at a low speed
●Components are damaged
■Secondary Collision Brake
automatic cancelation
The system is automatically can-
celed in any of th e following situa-
tions.
●The vehicle speed has decreased
to a certain speed
●A certain amount o f time elapses
during operation
●The accelerator pedal is
depressed a large amount
WARNING
■The ABS does not operate
effectively when
●The limits of tire gripping perfor-
mance have been exceeded
(such as excessively worn tires
on a snow covered road).
●The vehicle hydroplanes while
driving at high speed on wet or
slick roads.
■Stopping distance when the
ABS is operating may exceed
that of normal conditions
The ABS is not designed to
shorten the vehicle’s stopping dis-
tance. Always maintain a safe dis-
tance from the veh icle in front of
you, especially in the following sit-
uations:
●When driving on dirt, gravel or
snow-covered roads
●When driving with tire chains
●When driving over bumps in the
road
●When driving over roads with
potholes or uneven surfaces
■TRAC/VSC may not operate
effectively when
Directional control and power may
not be achievable while driving on
slippery road surfaces, even if the
TRAC/VSC system is operating.
Drive the vehicle carefully in con-
ditions where stability and power
may be lost.
■Active Cornering Assist does
not operate effectively when
●Do not overly rely on Active
Cornering Assist. Active Corner-
ing Assist may not operate
effectively when accelerating
down slopes or driving on slip-
pery road surfaces.

3436-1. Using the air conditioning system and defogger
Owners Manual_USA_M62064_en
6
Interior features
humidity sensor detects fog on the
windshield and controls the air con-
ditioning system to prevent fog.
■Outside/recirculated air mode
●Setting to the r ecirculated air
mode temporarily is recom-
mended in preventing dirty air
from entering the vehicle interior
and helping to c ool the vehicle
when the outside air temperature
is high.
●Outside/recirculated air mode may
automatically switch depending on
the temperature setting or the
inside temperature.
■When the outside temperature
falls to nearly 32°F (0°C)
The dehumidification function may
not operate even when “A/C” switch
is selected.
■Operation of the air condition-
ing system in Eco drive mode
●In Eco drive mode, the air condi-
tioning system is controlled as fol-
lows to prioritize fuel efficiency:
• Fuel cell system and compressor
operation controlled to restrict
heating/cooling capacity
• Fan speed restr icted when auto-
matic mode is selected
●To improve air co nditioning perfor-
mance, perform the following
operations:
• Adjust the fan speed
• Turn off Eco drive mode ( P.320)
• Turn off Eco air conditioning mode
●When the driving mode is set to
Eco drive mode, the Eco air condi-
tioning mode will be turned on
automatically. Even in this case,
the Eco air conditioning mode can
be turned off by s electing the Eco
air conditioning mode switch.
■When cleaning the air condi-
tioning control panel
Touch switches may respond when
cleaning. Turn the power switch to
OFF before proceeding with clean-
ing.
■Ventilation and air conditioning
odors
●To let fresh air in, set the air condi-
tioning system to the outside air
mode.
●During use, various odors from
inside and outside the vehicle may
enter into and accumulate in the
air conditioning system. This may
then cause odor to be emitted
from the vents.
●In order to suppr ess odors that
occur when the air conditioning
system starts, the air flow mode
may change to blow air to the feet
or air may stop blowing for a short
period of time immediately after
the air conditioning system is
started in automatic mode.
●When parking, the system auto-
matically switches to outside air
mode to encourage better air cir-
culation throughout the vehicle,
helping to reduce odors that occur
when starting the vehicle.
■Air conditioning filter
 P.432
■Air conditioning system refrig-
erant
●A label regarding the refrigerant of
the air conditioning system is
attached to the h ood at the loca-
tion shown in the following illustra-
tion.

3446-1. Using the air conditioning system and defogger
Owners Manual_USA_M62064_en
●The meaning of each symbol on
the label are as follows:
■Customization
Some functions can be customized.
(Customizable features: P.523)
1 Press the “AUTO” switch on
the air conditioning control
panel.
2 Adjust the temperature set-
ting.
3 To stop the operation, press
the “OFF” switch on the air
conditioning control panel.
If the fan speed setting or air
flow modes are operated, the
automatic mode indicator goes
off. However, automatic mode
for functions other than that
operated is maintained.
Caution
Air conditioning sys-
tem
Air conditioning sys-
tem lubricant type
Requires registered
technician to service
air conditioning sys-
tem
Flammable refrigerant
WARNING
■To prevent the windshield
from fogging up
Do not use the windshield defog-
ger switch during cool air opera-
tion in extremely humid weather.
The difference between the tem-
perature of the outside air and
that of the windshield can cause
the outer surface of the wind-
shield to fog up, blocking your
vision.
■When the outside rear view
mirror defoggers are operat-
ing
Do not touch the rear view mirror
surfaces when the outside rear
view mirror defoggers are on.
NOTICE
■To prevent 12-volt battery dis-
charge
Do not leave the air conditioning
system on longer than necessary
when the fuel ce ll system is off.
■Humidity sensor (Vehicles
with Toyota Teammate
Advanced Drive)
In order to detect fog on the wind-
shield, a sensor which monitors
the temperature of the windshield,
the surround humidity, etc. is
installed.
Follow these points to avoid dam-
aging the sensor:
●Do not disassemble the sensor
●Do not spray glass cleaner on
the sensor or subject it to strong
impacts
●Do not stick anything on the
sensor
Using automatic mode

3937-1. Maintenance and care
Owners Manual_USA_M62064_en
7
Maintenance and care
●To protect the paint from damage,
make sure to obs erve the follow-
ing precautions.
• Do not use acidi c, alkaline or
abrasive detergent
• Do not use hard brushes
• Do not use det ergent on the
wheels when they are hot, such
as after driving or parking in hot
weather
■Brake pads and calipers
Rust may form if the vehicle is
parked with wet brake pads or disc
rotors, causing them to stick. Before
parking the vehicle after it is
washed, drive slow ly and apply the
brakes several times to dry the
parts.
■Bumpers
Do not scrub with abrasive cleaners.
■Front side windows water-
repellent coating
●The following precautions can
extend the effectiveness of the
water-repellent coating.
• Remove any dirt, etc. from the front side windows regularly.
• Do not allow dirt and dust to accu- mulate on the windows for a long
period.
Clean the windows with a soft,
damp cloth as soon as possible.
• Do not use wax or glass cleaners
that contain abrasives when
cleaning the windows.
• Do not use any metallic objects to
remove condensation build up.
■Plated portions
If dirt cannot be removed, clean the
parts as follows:
●Use a soft cloth dampened with an
approximately 5% solution of neu-
tral detergent and water to clean
the dirt off.
●Wipe the surface with a dry, soft
cloth to remove any remaining
moisture.
●To remove oily deposits, use alco-
hol wet wipes or a similar product.
■Roof film (vehicles with elec-
tronic sunshade)
●Dirt like bird droppings and oil
should be cleaned off with a neu-
tral detergent immediately.
●When something was attached on
the film and its mark remains. The
small mark can be recovered by
dryer heating.
●Do not apply any films on the film.
●Do not use wax that contains
abrasives.
●In case of the film repair, please
request at your Toyota dealer.
■Vehicles with Advanced Drive
(if equipped)
As this vehicle is equipped with vari-
ous sensors, also refer to “Toyota
Teammate Advanced Drive
OWNER’S MANUAL” at Toyota.com
when cleaning the vehicle.
WARNING
■When washing the vehicle
Do not apply water to the inside of
the fuel cell unit compartment.
Doing so may cause the electrical
components, etc . to catch fire.

3947-1. Maintenance and care
Owners Manual_USA_M62064_en
WARNING
■When cleaning the windshield
Set the wiper switch to off.
If the wiper switch is in “AUTO”,
the wipers may operate unexpect-
edly in the following situations,
and may result in hands being
caught or other serious injuries
and cause damage to the wiper
blades.
Off
AUTO
●When the upper part of the
windshield where the raindrop
sensor is located is touched by
hand
●When a wet rag or similar is
held close to the raindrop sen-
sor
●If something bumps against the
windshield
●If you directly touch the raindrop
sensor body or if something
bumps into the raindrop sensor
■Precaution regarding the
front bumper
If the paint of the front bumper is
chipped or scratched, the Toyota
Safety Sense 2.5 + may not func-
tion correctly. If this occurs, con-
sult your Toyota dealer.
■Precaution regarding the
front bumper (vehicle with
Toyota Teammate Advanced
Drive)
If the paint of the front bumper is
chipped or scratched, the Toyota
Teammate Advanced Drive may
not function correctly.
If this occurs, consult your Toyota
dealer.
■Precaution regarding the rear
bumper
If the paint of th e rear bumper is
chipped or scratched, the follow-
ing systems may not function cor-
rectly. If this occurs, consult your
Toyota dealer.
●Toyota Teammate Advanced
Drive (If equipped)
●BSM
●R C TA
●PKSB
NOTICE
■To prevent paint deteriora-
tion and corrosion on the
body and components (alumi-
num wheels, etc.)
●Wash the vehicle immediately in
the following cases:
• After driving nea r the sea coast
• After driving on salted roads
• If coal tar or tree sap is present on the paint surface
• If dead insects, insect droppings or bird droppings are present on
the paint surface
• After driving in an area contami- nated with soot, oily smoke,
mine dust, iron powder or chem-
ical substances

3957-1. Maintenance and care
Owners Manual_USA_M62064_en
7
Maintenance and care
NOTICE
• If the vehicle becomes heavily soiled with dust or mud
• If liquids such as benzene and gasoline are spilled on the paint
surface
●If the paint is chipped or
scratched, have it repaired
immediately.
●To prevent the wheels from cor-
roding, remove any dirt and
store in a place with low humid-
ity when storing the wheels.
■Cleaning the exterior lights
●Wash carefully. Do not use
organic substances or scrub
with a hard brush.
This may damage the surfaces
of the lights.
●Do not apply wax to the sur-
faces of the lights.
Wax may cause damage to the
lenses.
■When washing the car
Do not remove the vehicle recep-
tacle cap and directly pour water
over the vehicle receptacle. If
water enters the vehicle recepta-
cle, damage may occur.
■When using an automatic car
wash
Set the wiper switch to the off
position.
If the wiper switch is in “AUTO”,
the wipers may operate and the
wiper blades may be damaged.
■When using a high pressure
car wash
●When washing the vehicle, do
not spray the camera or its sur-
rounding area directly with a
high pressure washer. Shock
applied from high pressure
water may cause the device to
not operate normally.
●Do not spray water directly on
the radar sensor which is
equipped behind the emblem.
Otherwise it may cause the
device to be damaged.
●Do not bring the nozzle tip close
to boots (rubber or resin manu-
factured cover), connectors or
the following parts. The parts
may be damaged if they come
into contact with high-pressure
water.
• Fuel cell stack
• Traction related parts
• Steering parts
• Suspension parts
• Brake parts
●Keep the cleaning nozzle at
least 11.9 in. (30 cm) away from
the vehicle body. Otherwise
resin section, s uch as moldings
and bumpers, may be deformed
and damaged.
Also, do not continuously hold the
nozzle in the same place.
●Do not spray the lower part of
the windshield continuously.
If water enters the air conditioning
system intake located near the
lower part of the windshield, the
air conditioning system may not
operate correctly.

4578-2. Steps to take in an emergency
Owners Manual_USA_M62064_en
8
When trouble arises
■LTA indicator (warning buzzer)
■Intuitive parking assist OFF indicator (warning buzzer)
■PKSB OFF indicator (warning buzzer)
Warning lightDetails/Actions
(Orange)
Indicates a malfunction in t he LTA (Lane Tracing Assist)
 Follow the instructions dis played on the multi-infor-
mation display. ( P.240)
Warning lightDetails/Actions
(If equipped)
Indicates a malfunction in the i ntuitive parking assist func-
tion
 Have the vehicle inspecte d by your Toyota dealer
immediately.
Indicates that the system is te mporarily unavailable, possi-
bly due to a sensor being dirt y or covered with ice, etc.
 Follow the instructions dis played on the multi-infor-
mation display. ( P.263)
Warning lightDetails/Actions
(If equipped)
When a buzzer sounds:
Indicates a malfun ction in the PKSB ( Parking Support
Brake) system
 Have the vehicle inspecte d by your Toyota dealer
immediately.
When a buzzer does not sound:
Indicates that the system is te mporarily unavailable, possi-
bly due to a sensor being dirt y or covered with ice, etc.
 Follow the instructions dis played on the multi-infor-
mation display. ( P.286)