Page 374 of 520
374
4-3. Do-it-yourself maintenance
Tire inflation pressure
■Tire inflation pressure
The recommended cold tire inflation pressure and tire size are
displayed on the tire and loading information label. ( P. 489) 
         
        
        
     
        
        Page 411 of 520
When trouble arises5
411
5-1. Essential informationEmergency flashers .........  412
If your vehicle needs to be towed ........................  413
If you think something  is wrong .........................  416
5-2. Steps to take in an  emergency
If a warning light turns  on or a warning buzzer 
sounds... .......................  417
If a warning message is  displayed........................  427
If you have a flat tire.........  447
If the EV (Electric Vehicle)  system will not start .......  465
If you lose your keys ........  467
If the electronic key  does not operate 
properly ..........................  468
If the vehicle 12-volt  battery is discharged ......  470
If your vehicle  overheats .......................  475
If the vehicle becomes  stuck ..............................  477
If your vehicle has to  be stopped in an 
emergency .....................  479 
         
        
        
     
        
        Page 427 of 520
5
When trouble arises
427
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 428 of 520
428 5-2. Steps to take in an emergency
Stop the vehicle immediately.A buzzer sounds and a warning message is shown on the multi-infor-
mation display. The following warnings indicate the possibility of dam-
age to the vehicle that may lead to  an accident. Immediately stop the
vehicle in a safe place and contact your Toyota dealer.
Warning messageDetails
Indicates a malfunction in the EV system.
Indicates a malfunction in the SOC gauge. 
         
        
        
     
        
        Page 433 of 520
5
When trouble arises
433
5-2. Steps to take in an emergency
Follow the correction procedures.
A buzzer sounds and a warning message is shown on the multi-infor-
mation display. After taking the s pecified steps to correct the sus-
pected problem, check that the warning message goes off.
Warning messageDetailsCorrection procedure
Indicates that one or 
more of the doors or 
back door is not fully 
closed. The system also indi-
cates which doors are 
not fully closed.
If the vehicle reaches 
a speed of 3 mph (5 
km/h),  flashes 
and a buzzer sounds 
to indicate that the 
door(s) are not yet 
fully closed. Make sure that all the 
doors are closed.
Due to the traction 
battery's temperature 
being low, power out-
put and maximum 
speed are limited. Wait for battery warm-
up to be completed. 
         
        
        
     
        
        Page 443 of 520

5
When trouble arises
443
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. 
         
        
        
     
        
        Page 444 of 520

444 5-2. Steps to take in an emergency
Charging has been 
completed and the 
“POWER” switch was 
turned to ON mode.
• The message will be displayed even if charg-
ing was interrupted by a 
power outage, the 
charging cable being 
disconnected, etc.
• This message will be  displayed in conjunction 
with other messages. 
The simultaneously dis-
played message will dif-
fer in accordance with 
the charging status (for 
example, if charging 
was completed or has 
been interrupted).Turn the “POWER” 
switch off once and the 
display will turn off. 
Then turn the “POWER” 
switch to ON mode.
• If a message warning of an interruption in charg-
ing is displayed simulta-
neously, turn the 
“POWER” switch off. 
After approximately 6 
seconds have passed, 
turn the “POWER” 
switch back to ON 
mode.
• After the “POWER”  switch operations have 
been performed, the 
vehicle can be driven as 
normal.
Charging was aborted 
due to a reduction in 
power from the power 
source.
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.
MessagesDetailsCorrection procedure 
         
        
        
     
        
        Page 446 of 520

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