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425
5-2. Steps to take in an emergency
CAUTION
■Maintenance of the tires
Each tire, including the spare (if provided), should be checked monthly
when cold and inflated to the inflation pressure recommended by the
vehicle manufacturer on the vehicle
placard or tire inflation pressure
label (tire and load information label). (If your vehicle has tires of a differ-
ent size than the size indicated on the vehicle placard or tire inflation
pressure label [tire and load information label], you should determine the
proper tire inflation pr essure for those tires.)
As an added safety feature, your vehicle has been equipped with a tire
pressure monitoring system (TPMS-ti re pressure warning system) that
illuminates a low tire pressure telltal e (tire pressure warning light) when
one or more of your tires is significantly under-inflated. Accordingly,
when the low tire pressure telltale (tire pre ssure warning light) illumi-
nates, you should stop and check your tires as soon as possible, and
inflate them to the proper pressure. Driving on a significantly under-
inflated tire causes the tire to overheat and can lead to tire failure.
Under-inflation also reduces fuel effi ciency (for electric vehicles, traction
battery efficiency) and tire tread lif e, and may affect the vehicle's han-
dling and stopping ability.
Please note that the TPMS (tire pressure warning system) is not a sub-
stitute for proper ti re maintenance, an d it is the driver's responsibility to
maintain correct tire pressure, even if under-inflation has not reached the
level to trigger illu mination of the TPMS low ti re pressure telltale (tire
pressure warning light).
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426 5-2. Steps to take in an emergency
CAUTION
Your vehicle has also been equipped with a TPMS (tire pressure warning
system) malfunction indicator to indicate when the system is not operat-
ing properly. The TPMS (tire pressure warning system) malfunction indi-
cator is combined with the low tire pressure telltale (tire pressure
warning light). When the system det ects a malfunction, the telltale will
flash for approximately one minute an d then remain continuously illumi-
nated. This sequence will continue upon subsequent vehicle start-ups as
long as the malfunction exists. When the malfunction indi cator is illumi-
nated, the system may not be able to detect or signal low tire pressure
as intended.
TPMS (tire pressure warning system) malfunctions may occur for a vari-
ety of reasons, including the installati on 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 pres-
sure warning system) malfunction te lltale after replacing one or more
tires or wheels on your vehicle to ensure that the replacement or alter-
nate tires and wheels allow the TPMS (tire pressure warning system) to
continue to function properly.
NOTICE
■Precaution when installing a different tire
When a tire of a different specification or maker is installed, the tire pres-
sure warning system may not operate properly.
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5-2. Steps to take in an emergency
If a warning message is displayed
If a warning is shown on the multi-information display, stay calm and
perform the following actions:
Master warning light
The master warning light also
comes on or flashes in order to
indicate that a message is cur-
rently being displayed on the
multi-information display.
Multi-information display
If any of the warning lights turn on again after the following actions,
contact your Toyota dealer.
Page 441 of 521
440 5-2. Steps to take in an emergency
Have the malfunction repaired immediately.After taking the specified steps to correct the suspected problem,
check that the warning message and light turn off.
Interior buzzerExterior buzzerWarning messageDetailsCorrection procedure
Once
(Comes on for 10 seconds.)
(Flashes) The electronic
key is not
detected when
attempting to
start the EV
system.
Confirm
the loca-
tion of the
electronic
key.
Once 3 times (Flashes)An open door
other than the
driver’s door is
closed while the
electronic key is
outside the
detection range
and the
“POWER”
switch is in
ACCESSORY
or ON mode.
Confirm
the loca-
tion of the
electronic
key.
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5-2. Steps to take in an emergency
Charging and pre-climate messages
Charging messages are shown on the multi-information display
when: the traction battery is bei ng charged using the charging cable,
the driver's door is opened, and th e “POWER” switch is turned to ON
mode after charging has been comp leted (when both charging indica-
tor lights illuminate).
If one of the messages is displayed, follow the correction procedures.
MessagesDetailsCorrection procedure
The charging cable has
been connected to the
vehicle while the
“READY” indicator light
was illuminated.
A buzzer also sounds.
A safety function* oper-
ates and automatically
turns off the EV system.
Turn the “POWER”
switch off, and perform
charging according to
the instructions on page
91.
An attempt has been
made to start the EV
system while the charg-
ing cable was con-
nected.
A buzzer also sounds.
A safety function* oper-
ates, not allowing the
EV system to be started
while the charging cable
is connected.
Remove the charging
cable and start the EV
system.
An attempt to start
charging while the
“POWER” switch is in
ON mode was made.
Charging has not been
properly completed.
Perform charging again
according to the instruc-
tions on page 53.
The vehicle can be
driven without perform-
ing charging again,
however, the drivable
distance will be short-
ened.
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446 5-2. Steps to take in an emergency
* For more information regarding safety systems, see page 88.
Charging was aborted
due to low traction bat-
tery temperature.Wait for battery warm-
up to be completed.
Pre-climate operations
were aborted due to the
amount of charge
remaining in the traction
battery being low.
Charge the vehicle.
(P. 53)
Pre-climate operations
were aborted due to a
door being opened.Reset the pre-climate
settings or restart oper-
ations using a smart
phone. ( P. 57, 58)
■ Charging Message Details
Depending on operation conditions, the details of a message shown on the
multi-information display and actual vehicle conditions may differ (for exam-
ple the previous condition may be shown). However, the following are not a
malfunction:
If “Charging Not Available Due to IG On turn IG Off to Charge” is shown on
the multi-information display, the message may still be displayed even after
the “POWER” switch is turned off once, the charging cable is reconnected
and the “POWER” switch is turned to ON mode again. However, if the charg-
ing indicator lights are illuminated or flashing ( P. 63), charging has recom-
menced correctly.
If “Canceled” is shown on the multi-in formation display, pre-climate opera-
tions stopped partway through due to the system judging that 15 minutes of
pre-climate operations was unnecessary . For example, soon after pre-cli-
mate operations started, the cabin temperature reached the set temperature
and pre-climate operations were stopped early.
When pre-climate has completed operations normally, “Complete” is shown
on the multi-information display.
MessagesDetailsCorrection procedure
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5-2. Steps to take in an emergency
If the EV (Electric Vehicle) system will not start
Reasons for the EV system not star ting vary depending on the situa-
tion. Check the following and pe rform the appropriate procedure:
■The EV system will not start even though the correct start-
ing procedure is being followed. ( P. 200)
One of the following may be the cause of the problem:
● The charging cable may be connected to the vehicle.
● The electronic key may not be functioning properly. ( P. 468)
● There may be a malfunction in the immobilizer system.
( P. 149)
● There may be a malfunction in the steering lock system.
● The EV system may be malfunct ioning due to an electrical
problem such as an open circuit or a blown fuse. However,
depending on the type of malf unction, an interim measure is
available to start the EV system. ( P. 385)
● There may be a malfunction in th e P position control system.*
( P. 203)
*: It may not be possible to shift the shift position from P to other posi-
tions.
■The interior lights and headlights are dim, or the horn does
not sound or sounds at a low volume.
One of the following may be the cause of the problem:
●The 12-volt battery may be discharged. ( P. 470)
● The 12-volt battery terminal c onnections may be loose or cor-
roded.
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466 5-2. Steps to take in an emergency
Emergency start functionWhen the EV system does not start, the following steps can be used
as an interim measure to start the EV system if the “POWER” switch
is functioning normally. Set the parking brake.
Set the “POWER” switch to the ACCESSORY mode.
Push and hold the “POWER” switch for about 15 seconds
while depressing the brake pedal firmly.
Even if the EV system can be st arted using the above steps, the sys-
tem may be malfunctioning. Have th e vehicle checked by your Toyota
dealer.
■ The interior lights and headlights do not turn on, or the horn
does not sound.
One of the following may be the cause of the problem:
●One or both of the 12-volt ba ttery terminals may be discon-
nected.
● The 12-volt battery may be discharged. ( P. 470)
Contact your Toyota dealer if the problem cannot be repaired, or if
repair procedures are unknown.
STEP 1
STEP 2
STEP 3