parking brake TOYOTA MIRAI 2020 (in English) Service Manual

4278-2. Steps to take in an emergency
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When trouble arises
*: A buzzer sounds the first time a message is shown on the multi-informa-
tion display.
■ If “Visit Your Dealer” is shown
The system or part shown on the multi-information display is ma lfunctioning.
Have the vehicle inspected by your Toyota dealer.
■ If a message about an operation is shown
● If a message about an operation of the accelerator pedal or bra ke pedal is
shown
A warning message about an operation of the brake pedal may be shown
while the driving assist systems such as PCS (Pre-Collision Sys tem) or the
dynamic radar cruise control is operating. If a warning message is shown,
be sure to decelerate the vehicle or follow an instruction show n on the multi-
information display.
● A warning message is shown when Drive-Start Control, Brake Over ride Sys-
tem or Parking Support Brake function (for static objects) (if equipped) oper-
ates ( P. 173, 279). Follow the instructions on the multi-information display.
● If a message about an operation of the power switch is shown
An instruction for operation of the power switch is shown when the incorrect
procedure for starting the fuel cell system is performed or the power switch
is operated incorrectly. Follow the instructions shown on the m ulti-informa-
tion display to operate the power switch again.
● If a message about a shift operation is shown
To prevent the shift position from being selected incorrectly o r the vehicle
from moving unexpectedly, the shift position may be changed aut omatically
( P. 196) or operating the shift lever or P position switch may b e required.
In this case, change the shift position following the instructions on the multi-
information display.
● If a message or image about an open/close state of a part or replenishment
of a consumable is shown
Confirm the part indicated by the multi-information display or a warning light,
and then perform the coping method such as closing the open doo r or
replenishing a consumable.
Comes onDoes not sound
Indicates a condition, such as mal-
function of electrical components,
their condition, or indicates the
need for maintenance
FlashesDoes not sound
Indicates a situation, such as
when an operation has been per-
formed incorrectly, or indicates
how to perform an operation cor-
rectly
System
warning
light
Warning buzzer*Warning

4298-2. Steps to take in an emergency
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When trouble arises
■If “Shift System Malfunction Shi fting Unavailable See Owner’s M anual”
is displayed
The shift position may not be able to be shifted from P to a position other than
P.
Contact your Toyota dealer immediately.
■ If “Shift System Malfunction When Parking, Apply Parking Brake
Securely then See Owner’s Manual” is displayed
●The parking lock mechanism may not operate.
● The automatically P position selection function ( P. 191) may not operate.
● The power switch may not turn off. In that case, engage the par king brake
and the switch can be turned to off.
● The fuel cell system may not be able to be started.
When parking, choose a flat surface and be sure to engage the p arking
brake.
Have the vehicle inspected by your Toyota dealer immediately.
■ If “[P] Switch Malfunction When Parking, Apply Parking Brake Se curely
then See Owner’s Manual” is displayed
The shift position may not switch to P even though the P position switch is
pressed.
When parking, choose a flat surface and be sure to engage the p arking
brake.
Have the vehicle inspected by your Toyota dealer immediately.
■ If “Shift System Malfunction See Owner’s Manual” is displayed
If left as is, the system may not operate properly and an unexp ected hazard
or damage may occur.
Have the vehicle inspected by your Toyota dealer immediately.
■ If “Insufficient Aux Battery Charge When Parking, Apply Parking Brake
Securely then See Owner’s Manual” is displayed
● The parking lock mechanism may not operate.
● The power switch may not turn off. In that case, engage the par king brake
and the switch can be turned to off.
● Even after charging the 12-volt battery, the warning message ma y continue
to be displayed until the shift position is shifted from P to a position other
than P.
● The fuel cell system may not be able to be started.
When parking, choose a flat surface and be sure to engage the p arking
brake.
Have the 12-volt battery charged or replaced.

4318-2. Steps to take in an emergency
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When trouble arises
■If “Shifted to [N] Position To Shift to [P], Stop Your Vehicle and Press [P]
Switch” is displayed
When the vehicle is moving, a warning message is displayed when the P
position switch is operated and attempting to shift the shift p osition to P.
The shift position is changed to N.
Operate the P position switch after the vehicle has been brough t to a com-
plete stop.
■ If “Smart Key System Malfunction See Owner’s Manual” is displayed
P. 145
■ If “Front Camera Unavailable” or “Front Camera Unavailable See
Owner’s Manual” is displayed
The following systems may be suspended until the problem shown in the
message is resolved. ( P. 224)
● PCS (Pre-Collision System)
● LDA (Lane Departure Alert with steering control)
● Automatic High Beam
● RSA (Road Sign Assist) (if equipped)
● Dynamic radar cruise control
■ If “Radar Cruise Control Unavailable See Owner's Manual” is sho wn
The dynamic radar cruise control system is suspended temporaril y or until the
problem shown in the message is resolved. (causes and coping me thods:
P. 224)
■ If “Radar Cruise Control Unavailable” is shown
The dynamic radar cruise control system cannot be used temporar ily. Use the
system when it becomes available again.
■ If the shift position cannot be changed or the power switch is turned to
ACCESSORY mode even if trying to turn the power switch off when a
warning message is shown
If the 12-volt battery is discharged or the shift control syste m is malfunction-
ing, the followings may occur.
● The shift position may not be changed to P.
When parking, stop the vehicle on level ground and apply the pa rking brake
firmly.
● The fuel cell system may not start.
● The power switch may be turned to ACCESSORY mode even if trying to
turn the power switch off.
In this case, the power switch may be turned off after applying the parking
brake.
● The automatic P position selection function ( P. 191) may not operate.
Before turning the power switch off, be sure to press the P pos ition switch
and check that the shift position is in P by the shift position indicator or P
position switch indicator.
■ Warning buzzer
P. 424

4338-2. Steps to take in an emergency
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When trouble arises
●Stop the vehicle in a safe place on a hard, flat surface.
● Set the parking brake.
● Shift the shift position to P.
● Stop the fuel cell system.
● Turn on the emergency flashers. ( P. 408)
● Check the degree of the tire damage.
A tire should only be repaired with
the emergency tire puncture
repair kit if the damage is caused
by a nail or screw passing through
the tire tread. • Do not remove the nail or screw from the tire. Removing the
object may widen the opening
and disenable emergency
repair with the repair kit.
• To avoid sealant leakage, move t he vehicle until the area of the
puncture, if known, is positioned at the top of the tire.
■A flat tire that cannot be repaired with the emergency tire pun cture
repair kit
In the following cases, the tire cannot be repaired with the em ergency tire
puncture repair kit. Contact your Toyota dealer.
●When the tire is damaged due to driving without sufficient air pressure
●When there are any cracks or damage at any location on the tire , such
as on the side wall, except the tread
●When the tire is visibly separated from the wheel
●When the cut or damage to the tr ead is 0.16 in. (4 mm) long or more
●When the wheel is damaged
●When two or more tires have been punctured
●When more than two sharp objects such as nails or screws have p assed
through the tread on a single tire
●When the sealant has expired
Before repairing the tire

4488-2. Steps to take in an emergency
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One of the following may be the cause of the problem:
● The 12-volt battery may be discharged. ( P. 452)
● One or both of the 12-volt battery terminals may be disconnecte d.
Contact your Toyota dealer if the problem cannot be repaired, o r if repair
procedures are unknown.
When the fuel cell system does not start, the following steps c an be
used as an interim measure to start the fuel cell system if the power
switch is functioning normally.
Do not use this starting procedure except in case of emergency.
Set the parking brake.
Turn the power switch to ACCESSORY mode.
Press and hold the power switch for about 15 seconds while
depressing the brake pedal firmly.
Even if the fuel cell system can be started using the above steps, the
system may be malfunctioning. Hav e the vehicle inspected by your
Toyota dealer.
The interior lights and headlights do not turn on, or the horn
does not sound.
Emergency start function
1
2
3

4638-2. Steps to take in an emergency
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When trouble arises
If the vehicle becomes stuck
Set the parking brake and stop the fuel cell system.
Remove the mud, snow or sand from around the front wheels.
Place wood, stones or some other material under the front wheel s
to help provide traction.
Restart the fuel cell system.
Shift the shift position to D or R and release the parking brak e.
Then, while exercising caution, depress the accelerator pedal.
■When it is difficult to free the vehicle
Carry out the following procedures if the tires spin or the vehicle
becomes stuck in mud, dirt or snow:
1
2
3
4
5
Press to turn off TRAC.
WARNING
■When attempting to f ree a stuck vehicle
If you choose to push the vehicle back and forth to free it, ma ke sure the
surrounding area is clear to avoid striking other vehicles, obj ects or people.
The vehicle may also lunge forward or lunge back suddenly as it becomes
free. Use extreme caution.
■ When shifting the shift position
Be careful not to shift the shift position with the accelerator pedal
depressed.
This may lead to unexpected rapid acceleration of the vehicle t hat may
cause an accident resulting in death or serious injury.

4709-1. Specifications
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*: The fluid capacity is a reference quantity. If replacement is necessary, contact your Toyota dealer.
*1: Minimum pedal clearance when depressed with a force of 44.1 lb f (196 N,
20.0 kgf) while the fuel cell system is operating
*2: Parking brake pedal travel when depressed with a force of 67.5 lbf (300 N,
31.0 kgf).
Electrical system
12-volt battery
Open voltage at
68 F (20 C):12.6  12.8 V Fully charged
12.2  12.4 V Half charged
11 . 8  12.0 V Discharged
(Voltage checked 20 minutes after the fuel cell
system and all lights are turned off)
Charging rates5 A max.
Transmission
Fluid capacity*4.4 qt. (4.2 L, 3.7 Imp.qt.)
Fluid type Toyota Genuine ATF WS
NOTICE
■Transmission fluid type
Using transmission fluid other than “Toyota Genuine ATF WS” may ulti-
mately damage the transmission of your vehicle.
Brakes
Pedal clearance*12.95 in. (75 mm) Min.
Pedal free play 0.04  0.24 in. (1  6 mm)
Brake pad wear limit0.04 in. (1.0 mm)
Parking brake lining wear limit0.04 in. (1.0 mm)
Parking brake pedal travel*27  10 clicks
Fluid type SAE J1703 or FMVSS No.116 DOT 3, or
SAE J1704 or FMVSS No.116 DOT 4

4849-2. Customization
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Customizable features
When customizing vehicle features, ensure that the vehicle is parked
in a safe place with the shift po sition in P and the parking brake set.
■Changing by using the navigation system
Press the “MENU” button.
Select “Setup” on the “MENU” screen and select “Vehicle”.
Select “Vehicle Customization”.
Various setting can be changed. Refer to the list of settings t hat can
be changed for details.
■Changing by using the multi-information display
Press or of the meter control switches ( P. 118), select
(  P. 117).
Press or of the meter control switches, select the item,
and then press .
To go back to the previous screen or exit the customize mode,
press .
Your vehicle includes a variety of electronic features that can be
personalized to suit your preferences. The settings of these fe a-
tures can be changed by using th e navigation system, the multi-
information display, or at your Toyota dealer.
Customizing vehicle features
1
2
3
1
2

4929-2. Customization
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RSA (Road Sign Assi
st) (if equipped) (P. 248)
■Parking Support Brake functi on (for static objects) (if
equipped) ( P. 274)
■Intuitive parking assist ( P. 265)
■Seat belt reminder (P. 421)
FunctionDefault
settingCustomized setting
Road Sign AssistOnOff—O——
RSA notification method
(excess speed)Display only
No
notification
—O——Display and buzzer
RSA notification method
(others)Display only
No
notification
—O——Display and buzzer
RSA notification level1mph/h
(2km/h)
3mph
(5km/h)
—O——5mph
(10km/h)
FunctionDefault settingCustomized setting
Parking Support Brake func-
tion (for static objects)OnOff—O——
FunctionDefault settingCustomized setting
Intuitive parking assistOnOff—O——
Detection distance of the
rear center sensorLongShort———O
Buzzer volumeLevel 2Level 1 to 3—O——
FunctionDefault settingCustomized setting
Vehicle speed linked seat
belt reminder buzzerOnOff———O

4949-3. Items to initialize
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Items to initialize
The following items must be initialized for normal system opera-
tion after such cases as the 12-volt battery being reconnected,
or maintenance being pe rformed on the vehicle:
ItemWhen to initializeReference
Power windowWhen functioning abnormallyP. 168
Ion filterAfter changing the ion filterP. 490
Parking Support Brake func-
tion (for static objects)After reconnecting or chang-
ing the 12-volt batteryP. 283