Toyota Mirai (2022 year). Manual in english — page 27
436
8-2. Steps to take in an emergency
In the following situations, it is
not possible to be towed by
another vehicle using cables or
chains, as the rear wheels may
be locked due to the parking
lock. Contact your Toyota dealer
or commercial towing service.
There is a malfunction in the
shift control system. (
There is a malfunction in the
immobilizer system. (
There is a malfunction in the
smart key system. (
The 12-volt battery is dis-
charged. (
The following may indicate a
problem with your transmission.
Contact your Toyota dealer or
commercial towing service
before towing.
The fuel cell system warning
message is shown on the
multi-information display and
the vehicle does not move.
The vehicle makes an abnor-
mal sound.
WARNING
• Turn the power switch off.
■
Installing towing eyelets to
the vehicle
Make sure that towing eyelets are
installed securely.
If not securely installed, towing
eyelets may come loose during
towing.
NOTICE
■
To prevent damage to the
vehicle when towing using a
wheel-lift type truck
●
Do not tow the vehicle from the
rear when the power switch is
off. The steering lock mecha-
nism is not strong enough to
hold the front wheels straight.
●
When raising the vehicle,
ensure adequate ground clear-
ance for towing at the opposite
end of the raised vehicle. With-
out adequate clearance, the
vehicle could be damaged while
being towed.
■
To prevent damage to the
vehicle when towing with a
sling-type truck
Do not tow with a sling-type truck,
either from the front or rear.
■
To prevent damage to the
vehicle during emergency
towing
Do not secure cables or chains to
the suspension components.
Situations when it is not
possible to be towed by
another vehicle
Situations when it is nec-
essary to contact dealers
before towing
437
8-2. Steps to take in an emergency
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From the front
Use a towing dolly under the
rear wheels.
From the rear
Use a towing dolly under the
front wheels.
■
Towing with a sling-type truck
Do not tow with a sling-type truck to
prevent body damage.
When using a flat-bed truck to
transport the vehicle, use tire
strapping belts. Refer to the
owner’s manual of the flat-bed
truck for the tire strapping
method.
In order to suppress vehicle
movement during transporta-
tion, set the parking brake and
turn the power switch off.
If a tow truck is not available in
an emergency, your vehicle may
be temporarily towed using
cables or chains secured to the
emergency towing eyelets. This
should only be attempted on
hard surfaced roads for short
distances at under 18 mph (30
km/h).
A driver must be in the vehicle to
steer and operate the brakes.
The vehicle’s wheels, drive train,
axles, steering and brakes must
be in good condition.
To have your vehicle towed by
another vehicle, the towing eye-
let must be installed to your
vehicle. Install the towing eyelet
using the following procedure.
Towing with a wheel-lift
type truck
Using a flatbed truck
Emergency towing
Emergency towing proce-
dure
438
8-2. Steps to take in an emergency
1
Take out the screwdriver and
towing eyelet.
Screwdriver
Towing eyelet
2
Remove the eyelet cover
using a flathead screwdriver.
If the driver is a Phillips-head,
replace it with flathead.
To protect the bodywork, place a
rag between the screwdriver and
the vehicle body as shown in the
illustration.
3
Insert the towing eyelet into
the hole and tighten partially
by hand.
4
Tighten down the towing eye-
let securely using a screw-
driver or hard metal bar.
5
Securely attach cables or
chains to the towing eyelet.
Take care not to damage the vehi-
cle body.
6
Enter the vehicle being towed
and start the fuel cell system.
If the fuel cell system does not
start, turn the power switch to ON.
7
Shift the shift position to N
and release the parking
brake.
Turn automatic mode off. (
■
While towing
If the fuel cell system is off, the
power assist for the brakes and
steering will not function, making
439
8-2. Steps to take in an emergency
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steering and braking more difficult.
■
Wheel nut wrench
Wheel nut wrench can be pur-
chased at your Toyota dealer.
■
Before transporting or towing in
frozen areas
Operate the water release function.
Otherwise, the fuel cell system may
freeze and the vehicle may not be
able to be started. (
Fluid leaks under the vehicle.
(Water dripping from the air
conditioning after use is nor-
mal.)
Flat-looking tires or uneven
tire wear
The high coolant temperature
gauge needle continually
points higher than normal.
Hydrogen gas leakage noises
can be heard. (
Excessive tire squeal when
cornering
Strange noises related to the
suspension system
Other noises related to the
fuel cell system
Stumbling or running roughly
Appreciable loss of power
Vehicle pulls heavily to one
If you think something
is wrong
If you notice any of the fol-
lowing symptoms, your
vehicle probably needs
adjustment or repair. Con-
tact your Toyota dealer as
soon as possible.
Visible symptoms
Audible symptoms
Operational symptoms
440
8-2. Steps to take in an emergency
side when braking
Vehicle pulls heavily to one
side when driving on a level
road
Loss of brake effectiveness,
spongy feeling, pedal almost
touches the floor
441
8-2. Steps to take in an emergency
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■
Hydrogen leak warning light (warning buzzer)
■
Brake system warning light (warning buzzer)
■
Brake system warning light (warning buzzer)
If a warning light turns on or a warning buzzer
sounds
Calmly perform the following actions if any of the warning
lights comes on or flashes. If a light comes on or flashes, but
then goes off, this does not necessarily indicate a malfunc-
tion in the system. However, if this continues to occur, have
the vehicle inspected by your Toyota dealer.
Actions to the warning lights or warning buzzers
Warning light
Details/Actions
When a hydrogen gas leak is detected, a buzzer sounds, a
light comes on, and a warning message is displayed on the
multi-information display.
Warning light
Details/Actions
(U.S.A.)
or
(Red)
(Canada)
Indicates that:
The brake fluid level is low; or
The brake system is malfunctioning
Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer. Continuing to drive the vehi-
cle may be dangerous.
Indicates that the brake pads are worn out (only the right-
side pads can be detected)
Have the vehicle inspected by your Toyota dealer.
Warning light
Details/Actions
(Yellow)
Indicates a malfunction in:
The regenerative braking system;
The electronically controlled brake system; or
The parking brake system
Have the vehicle inspected by your Toyota dealer
immediately.
442
8-2. Steps to take in an emergency
■
High coolant temperature warning light
*
*
: This light illuminates on the multi-information display.
■
Fuel cell system overheat warning light
*
(warning buzzer)
*
: This light illuminates on the multi-information display.
■
Charging system warning light
*
(warning buzzer)
*
: This light illuminates on the multi-information display.
■
SRS warning light
Warning light
Details/Actions
(Red)
Indicates that the coolant temperature is too high
Immediately stop the vehicle in a safe place.
Handling method (
Warning light
Details/Actions
Indicates the fuel cell system has overheated
Stop the vehicle in a safe place.
Handling method (
Warning light
Details/Actions
Indicates a malfunction in the vehicle’s charging system
Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer.
Warning light
Details/Actions
Indicates a malfunction in:
The SRS airbag system;
The front passenger occupant classification system; or
The seat belt pretensioner system
Have the vehicle inspected by your Toyota dealer
immediately.
443
8-2. Steps to take in an emergency
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■
Pop Up Hood warning light
■
ABS warning light
■
Electric power steering system warning light (warning
buzzer)
Warning light
Details/Actions
Indicates that the Pop Up Hood system has operated
The Pop Up Hood system cannot be reused once it
has operated. Have it replaced by your Toyota dealer.
Indicates a malfunction in the Pop Up Hood system
Have the vehicle inspected by your Toyota dealer
immediately.
Warning light
Details/Actions
(U.S.A.)
or
(Canada)
Indicates a malfunction in:
The ABS; or
The brake assist system
Have the vehicle inspected by your Toyota dealer
immediately.
Warning light
Details/Actions
(Red)
or
(Yellow)
Indicates a malfunction in the EPS (Electric Power Steer-
ing) system
Have the vehicle inspected by your Toyota dealer
immediately.
444
8-2. Steps to take in an emergency
■
PCS warning light
■
LTA indicator
*
(warning buzzer)
*
: This light illuminates on the multi-information display.
■
Intuitive parking assist OFF indicator (warning buzzer)
Warning light
Details/Actions
(Flashes or illu-
minates)
When a buzzer sounds simultaneously:
Indicates a malfunction has occurred in the PCS (Pre-Colli-
sion System).
Have the vehicle inspected by your Toyota dealer
immediately.
When a buzzer does not sound:
The PCS (Pre-Collision System) has become temporarily
unavailable, corrective action may be necessary.
Follow the instructions displayed on the multi-infor-
mation display. (
If the PCS (Pre-Collision System) or VSC (Vehicle Stability
Control) system is disabled, the PCS warning light will illu-
minate.
Warning light
Details/Actions
(Orange)
Indicates a malfunction in the LTA (Lane Tracing Assist)
Follow the instructions displayed on the multi-infor-
mation display. (
Warning light
Details/Actions
(Flashes)
(If equipped)
Indicates a malfunction in the intuitive parking assist func-
tion
Have the vehicle inspected by your Toyota dealer
immediately.
Indicates that the system is temporarily unavailable, possi-
bly due to a sensor being dirty or covered with ice, etc.
Follow the instructions displayed on the multi-infor-
mation display. (
445
8-2. Steps to take in an emergency
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■
PKSB OFF indicator (warning buzzer)
■
RCTA OFF indicator (warning buzzer)
■
RCD OFF indicator
*
(warning buzzer)
*
: This light illuminates on the multi-information display.
Warning light
Details/Actions
(Flashes)
(If equipped)
When a buzzer sounds:
Indicates a malfunction in the PKSB (Parking Support
Brake) system
Have the vehicle inspected by your Toyota dealer
immediately.
When a buzzer does not sound:
Indicates that the system is temporarily unavailable, possi-
bly due to a sensor being dirty or covered with ice, etc.
Follow the instructions displayed on the multi-infor-
mation display. (
Warning light
Details/Actions
(Flashes)
(If equipped)
Indicates a malfunction in the RCTA (Rear Cross Traffic
Alert) function
Have the vehicle inspected by your Toyota dealer
immediately.
Indicates that the rear bumper around the radar sensor is
covered with dirt, etc. (
Follow the instructions displayed on the multi-infor-
mation display. (
Warning light
Details/Actions
(Flashes)
(If equipped)
When a buzzer sounds:
Indicates a malfunction in the RCD (Rear Camera Detec-
tion) function
Have the vehicle inspected by your Toyota dealer
immediately.
When a buzzer does not sound:
Indicates that the function temporarily cannot be used due
to the camera being dirty, etc.
Follow the instructions displayed on the multi-infor-
mation display. (
446
8-2. Steps to take in an emergency
■
Slip indicator light
■
Inappropriate pedal operation warning light
*
(warning buzzer)
*
: This light illuminates on the multi-information display.
■
Brake hold operated indicator (warning buzzer)
Warning light
Details/Actions
Indicates a malfunction in:
The VSC system;
The TRAC system; or
The hill-start assist control system
Have the vehicle inspected by your Toyota dealer
immediately.
Warning light
Details/Actions
When a buzzer sounds:
Indicates a malfunction in:
The Brake Override System
The Drive-Start Control
Have the vehicle inspected by your Toyota dealer
immediately.
Indicates that the shift position was changed and Drive-
Start Control was operated while depressing the accelerator
pedal.
Momentarily release the accelerator pedal.
When a buzzer does not sound:
Indicates that the accelerator and brake pedals are being
depressed simultaneously, and the Brake Override System
is operating.
Release the accelerator pedal and depress the brake
pedal.
Warning light
Details/Actions
(Flashes)
Indicates a malfunction in the brake hold system
Have the vehicle inspected by your Toyota dealer
immediately.
447
8-2. Steps to take in an emergency
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■
Parking brake indicator (warning buzzer)
■
Tire pressure warning light
■
Low fuel level warning light
*
*
: This light illuminates on the multi-information display.
Warning light
Details/Actions
(Flashes)
(U.S.A.)
or
(Flashes)
(Canada)
Indicates a malfunction in the parking brake system
Have the vehicle inspected by your Toyota dealer
immediately.
Warning light
Details/Actions
When the light comes on after blinking for approximately 1
minute:
Malfunction in the tire pressure warning system
Have the system checked by your Toyota dealer.
When the light comes on:
Low tire inflation pressure such as
Natural causes
Flat tire
Immediately stop the vehicle in a safe place.
Handling method (
Warning light
Details/Actions
Indicated the remain fuel is approximately 12% or less
Refuel the vehicle.
448
8-2. Steps to take in an emergency
■
Driver’s and front passenger’s seat belt reminder light (warn-
ing buzzer)
*
*
: Driver’s seat belt warning buzzer:
The driver’s seat belt warning buzzer sounds to alert the driver that his or
her seat belt is not fastened. Once the power switch is turned to ON, the
buzzer sounds. If the seat belt is still unfastened, the buzzer sounds inter-
mittently for a certain period of time after the vehicle reaches a certain
speed.
Front passenger’s seat belt warning buzzer:
The front passenger’s seat belt warning buzzer sounds to alert the front
passenger that his or her seat belt is not fastened. If the seat belt is
unfastened, the buzzer sounds intermittently for a certain period of time
after the vehicle reaches a certain speed.
■
Rear passengers’ seat belt reminder lights
*1
(warning
buzzer)
*2
*1
:This light illuminates on the multi-information display.
*2
:Rear passengers’ seat belt warning buzzer:
The rear passengers’ seat belt warning buzzer sounds to alert the rear
passenger that his or her seat belt is not fastened. If the seat belt is
unfastened, the buzzer sounds intermittently for a certain period of time,
after the seat belt is fastened and unfastened and the vehicle reaches a
certain speed.
■
Warning buzzer
In some cases, the buzzer may not
be heard due to being in a noisy
location or audio sound.
■
Front passenger detection sen-
sor, seat belt reminder and
warning buzzer
●
If luggage is placed on the front
passenger seat, the front passen-
ger detection sensor may cause
the warning light to flash and the
warning buzzer to sound even if a
Warning light
Details/Actions
Warns the driver and/or front passenger to fasten their seat
belts
Fasten the seat belt.
If the front passenger’s seat is occupied, the front
passenger’s seat belt also needs to be fastened to
make the warning light (warning buzzer) turn off.
Warning light
Details/Actions
Warns the rear passengers to fasten their seat belts
Fasten the seat belt.
449
8-2. Steps to take in an emergency
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passenger is not sitting in the
seat.
●
If a cushion is placed on the seat,
the sensor may not detect a pas-
senger, and the warning light may
not operate properly.
■
SRS warning light
This warning light system monitors
the airbag sensor assembly, front
impact sensors, side impact sensors
(front door), side impact sensors
(front), side impact sensors (rear),
driver’s seat position sensor,
driver’s seat belt buckle switch, front
passenger occupant classification
system (ECU and sensors), “AIR-
BAG ON” indicator light, “AIRBAG
OFF” indicator light, front passen-
ger’s seat belt buckle switch, seat
belt pretensioners, airbags, inter-
connecting wiring and power
sources. (
P.34)
■
Electric power steering system
warning light (warning buzzer)
When the 12-volt battery charge
becomes insufficient or the voltage
temporarily drops, the electric power
steering system warning light may
come on and the warning buzzer
may sound.
■
When the tire pressure warning
light comes on
Inspect the tires to check if a tire is
punctured.
If a tire is punctured:
If none of the tires are punctured:
Turn the power switch off then turn it
to ON. Check if the tire pressure
warning light comes on or blinks.
If the tire pressure warning light
blinks for approximately 1 minute
then stays on
There may be a malfunction in the
tire pressure warning system. Have
the vehicle inspected by your Toyota
dealer immediately.
If the tire pressure warning light
comes on
1
After the temperature of the tires
has lowered sufficiently, check
the inflation pressure of each tire
and adjust them to the specified
level.
2
If the warning light does not turn
off even after several minutes
have elapsed, check that the
inflation pressure of each tire is
at the specified level and perform
initialization. (
■
The tire pressure warning light
may come on due to natural
causes
The tire pressure warning light may
come on due to natural causes such
as natural air leaks and tire inflation
pressure changes caused by tem-
perature. In this case, adjusting the
tire inflation pressure will turn off the
warning light (after a few minutes).
■
Conditions that the tire pres-
sure warning system may not
function properly
WARNING
■
If both the ABS and the brake
system warning lights remain
on
Stop your vehicle in a safe place
immediately and contact your Toy-
ota dealer.
The vehicle will become
extremely unstable during brak-
ing, and the ABS system may fail,
which could cause an accident
resulting in death or serious injury.
450
8-2. Steps to take in an emergency
WARNING
■
When the electric power
steering system warning light
comes on
When the light comes on yellow,
the assist to the power steering is
restricted. When the light comes
on red, the assist to the power
steering is lost and handling oper-
ations of the steering wheel
become extremely heavy.
When steering wheel operations
are heavier than usual, grip the
steering wheel firmly and operate
it using more force than usual.
■
If the tire pressure warning
light comes on
Be sure to observe the following
precautions.
Failure to do so could cause a
loss of vehicle control and result
in death or serious injury.
●
Check and adjust the tire infla-
tion pressure immediately.
●
If the tire pressure warning light
comes on even after tire infla-
tion pressure adjustment, it is
probable that you have a flat
tire. Have the flat tire replaced
by the nearest Toyota dealer.
●
Avoid abrupt maneuvering and
braking.
If the vehicle tires deteriorate,
you could lose control of the
steering wheel or the brakes.
■
If a blowout or sudden air
leakage should occur
The tire pressure warning system
may not activate immediately.
■
Maintenance of the tires
Each tire, including the spare (if
provided), should be checked
monthly when cold and inflated to
the inflation pressure recom-
mended by the vehicle manufac-
turer on the vehicle placard or tire
inflation pressure label (tire and
load information label). (If your
vehicle has tires of a different size
than the size indicated on the
vehicle placard or tire inflation
pressure label [tire and load infor-
mation label], you should deter-
mine the proper tire inflation
pressure for those tires.)
As an added safety feature, your
vehicle has been equipped with a
tire pressure monitoring system
(TPMS-tire pressure warning sys-
tem) that illuminates a low tire
pressure telltale (tire pressure
warning light) when one or more
of your tires is significantly under-
inflated. Accordingly, when the
low tire pressure telltale (tire pres-
sure warning light) illuminates,
you should stop and check your
tires as soon as possible, and
inflate them to the proper pres-
sure. Driving on a significantly
under-inflated tire causes the tire
to overheat and can lead to tire
failure. Under-inflation also
reduces fuel efficiency and tire
tread life, and may affect the vehi-
cle’s handling and stopping ability.
Please note that the TPMS (tire
pressure warning system) is not a
substitute for proper tire mainte-
nance, and it is the driver’s
responsibility to maintain correct
tire pressure, even if under-infla-
tion has not reached the level to
trigger illumination of the TPMS
low tire pressure telltale (tire pres-
sure warning light).
451
8-2. Steps to take in an emergency
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■
Warning messages
The warning messages explained
below may differ from the actual
messages according to operation
conditions and vehicle specifica-
tions.
■
Warning buzzer
A buzzer may sound when a mes-
sage is displayed.
In some cases, the buzzer may not
be heard due to being in a noisy
location or audio sound.
WARNING
Your vehicle has also been
equipped with a TPMS (tire pres-
sure warning system) malfunc-
tion indicator to indicate when the
system is not operating properly.
The TPMS (tire pressure warning
system) malfunction indicator is
combined with the low tire pres-
sure telltale (tire pressure warning
light). When the system detects a
malfunction, the telltale will flash
for approximately one minute and
then remain continuously illumi-
nated. This sequence will con-
tinue upon subsequent vehicle
start-ups as long as the malfunc-
tion exists. When the malfunction
indicator is illuminated, the sys-
tem may not be able to detect or
signal low tire pressure as
intended.
TPMS (tire pressure warning sys-
tem) malfunctions may occur for a
variety of reasons, including the
installation of replacement or
alternate tires or wheels on the
vehicle that prevent the TPMS
(tire pressure warning system)
from functioning properly. Always
check the TPMS (tire pressure
warning system) malfunction tell-
tale after replacing one or more
tires or wheels on your vehicle to
ensure that the replacement or
alternate tires and wheels allow
the TPMS (tire pressure warning
system) to continue to function
properly.
NOTICE
■
To ensure the tire pressure
warning system operates
properly
Do not install tires with different
specifications or makers, as the
tire pressure warning system may
not operate properly.
If a warning message
is displayed
The multi-information dis-
play shows warnings for
system malfunctions and
incorrectly performed oper-
ations, and messages that
indicate a need for mainte-
nance. When a message is
displayed, perform the
appropriate corrective
action for the message.
If a warning message is dis-
played again after the
appropriate actions have
been performed, contact
your Toyota dealer.
Additionally, if a warning
light comes on or flashes at
the same time that a warn-
ing message is displayed,
take the appropriate correc-
tive action for the warning
light. (
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