Page 480 of 588

4808-2. Steps to take in an emergency
PRIUS c_U (OM52F96U)
WARNING
■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 dif-
ferent 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 pressure 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 pre ssure telltale (tire pressure warning light) when
one or more of your tires is significantly under-inflated. Accordingly,
when the low tire pressure telltale  (tire pressure 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 and tire tread life, and may
affect the vehicle’s hand ling and stopping ability.
Please note that the TPMS (tire pres sure warning system) is not a sub-
stitute for proper ti re maintenance, and it is  the driver’s responsibility to
maintain correct tire pressure, even if under-inflation has not reached
the level to trigger illumina tion of the TPMS low tire pressure telltale (tire
pressure warning light).
Your vehicle has also been equipped with a TPMS (tire pressure warn-
ing system) malfunction indicator to  indicate when the system is not
operating properly. The TPMS (tire pressure warning system) malfunc-
tion indicator is combined with the lo w tire pressure telltale (tire pressure
warning light). When the system dete cts a malfunction, the telltale will
flash for approximately one minute and  then remain continuously illumi-
nated. This sequence will continue up on subsequent vehicle start-ups
as long as the malfunction exists.  When the malfunction indicator is illu-
minated, the system may not be able  to detect or signal low tire pres-
sure 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. 
         
        
        
     
        
        Page 482 of 588
4828-2. Steps to take in an emergency
PRIUS c_U (OM52F96U)
Multi-information display
Warning message details and/or
correction procedures are shown
on the multi-information display.
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.
If any of the warning message or indicator comes on again after the
following actions have been performed, contact your Toyota dealer.
If a war ning message is displayed
If a warning is shown on the multi-information display, stay calm
and perform the following actions:
1
2 
         
        
        
     
        
        Page 484 of 588

4848-2. Steps to take in an emergency
PRIUS c_U (OM52F96U)
(If equipped)
Indicates a malfunction in:
• The Automatic High Beam system (if equipped)
• The LED headlight system (if equipped)A buzzer also sounds.
 Have the vehicle inspected by your Toyota
dealer.
(If equipped)
Indicates that:
• There is a high possibility of a frontal collision;
or
• The pre-collision braking function is operating A buzzer also sounds.
 Check the vehicle's surroundings and take
evasive action if necessary.
(If equipped)
• Indicates a malfunction in the smart key system
• Indicates a malfunction in the steering lock sys-
tem
A buzzer also sounds.
 Have the vehicle inspected by your Toyota
dealer.
(If equipped)
Indicates a malfunction in the cruise control sys-
tem
A buzzer also sounds.
 Have the vehicle inspected by your Toyota
dealer.
Indicates a malfunction in the Brake Override
System
A buzzer also sounds.
 Have the vehicle inspected by your Toyota
dealer.
Warning messageDetails/Actions
(Flashes) 
         
        
        
     
        
        Page 487 of 588

4878-2. Steps to take in an emergency
8
When trouble arises
PRIUS c_U (OM52F96U)
(If equipped)
Indicates that the Automatic High Beam switch is
pressed while the headlights are in low beam.
Turn the high beam on.
(If equipped)
Indicates that, since the VSC (Vehicle Stability
Control) system was turned off, the pre-collision
brake system operation is stopped
Turn the VSC on. ( P. 262)
(If equipped)
Indicates that the pre-collision system is disabled.
Have the vehicle inspected by your Toyota
dealer.
Indicates that the hybrid battery (traction battery)
is low A buzzer also sounds.
 When stopping the vehicle for a long
period of time, shift the shift lever to P. The
hybrid battery (traction battery) cannot be
charged with the shift position in N.
Indicates that the hybrid battery (traction battery)
power has dropped because a long period of time
has elapsed after shifting the shift lever to N A buzzer also sounds.
 Shift the shift lever to P and restart the
hybrid system when starting the vehicle.
Warning messageDetails/Actions
(Flashes)
(Flashes)
(Flashes) 
         
        
        
     
        
        Page 488 of 588

4888-2. Steps to take in an emergency
PRIUS c_U (OM52F96U)Indicates that the driver’s door was opened with
the shift position in N, D or B
A buzzer also sounds.
 Shift the shift lever to P.
Indicates that the accelerator pedal is depressed
while the shift position is in N A buzzer also sounds.
 Release the accelerator pedal and shift the
shift lever to D, B or R.
Indicates that the engine switch is turned to the
“ACC” or “LOCK” position (vehicles without a
smart key system) or the “POWER” switch is
turned to ACCESSORY mode or turned off (vehi-
cles with a smart key system) and the driver’s
door is opened while the lights are turned on A buzzer also sounds.
 Turn the lights off.
Indicates that the EV drive mode is not avail-
able
*2
The reason the EV drive mode is not available
(the vehicle is idling, battery charge is low,
speed is higher than the EV drive mode operat-
ing speed range, accelerator pedal is
depressed too much) may be displayed.
A buzzer also sounds.
 Use the EV drive mode when it becomes
available.
Indicates that the EV drive mode has been auto-
matically canceled
*2
The reason the EV drive mode is not available
(the battery charge is low, speed is higher than
the EV drive mode speed range, accelerator
pedal is depressed too much) may be dis-
played.
A buzzer also sounds.
 Drive the vehicle for a while.
Warning messageDetails/Actions
(Flashes)
(Flashes)
(Flashes)
(Flashes 3 
times) 
         
        
        
     
        
        Page 491 of 588
4918-2. Steps to take in an emergency
8
When trouble arises
PRIUS c_U (OM52F96U)
After taking the specified steps to correct the suspected problem,
check that the warning message and light go off.
Have the malfunction repaired immediately. (vehicles with a
smart key system)
InteriorbuzzerExterior buzzerWarning messageDetails/Actions
Once  The electronic key is not
detected when an attempt is
made to start the hybrid sys-
tem.
Start the hybrid system
with the electronic key
present.
Once3 times
The electronic key was carried
outside the vehicle and the
driver’s door was opened and
closed while the shift lever was
in P without turning off the
“POWER” switch. 
Turn the “POWER” switch
off or bring the electronic
key back into the vehicle.
The electronic key was carried
outside the vehicle and a door
other than the driver's door was
opened and closed while the
“POWER” switch was in a
mode other than off.
Bring the electronic key
back into the vehicle.
(Flashes)
(Flashes) 
         
        
        
     
        
        Page 494 of 588
4948-2. Steps to take in an emergency
PRIUS c_U (OM52F96U)
Once
• The electronic key could notbe detected when the
“POWER” switch was
pressed after the doors were
unlocked with the mechanical
key. 
• The electronic key could not be detected two consecutive
times when the “POWER”
switch was pressed. 
 Touch the electronic key to
the “POWER” switch while
depressing the brake
pedal.
Contin-
uous
An attempt was made to start
the hybrid system with the shift
lever in a position other than P.
 Shift the shift lever to P
and start the hybrid sys-
tem.
Power was turned off due to the
automatic power off function.
Next time when starting
the hybrid system,
increase the engine speed
slightly and maintain that
level for approximately 5
minutes to recharge the
12-volt-battery.
Once
The electronic key has a low
battery.
Replace the electronic key
battery. ( P. 444)
Interior
buzzerExterior buzzerWarning messageDetails/Actions
(Flashes)
(Flashes) 
         
        
        
     
        
        Page 505 of 588

5058-2. Steps to take in an emergency
8
When trouble arises
PRIUS c_U (OM52F96U)
Firmly tighten each wheel nut
two or three times in the order
shown in the illustration.
Tightening torque:
76 ft•lbf (103 N•m, 10.5 kgf•m)
Stow the flat tire in the luggage
compartment as shown in the
illustration.
Stow all the tools.
Stow the spare wheel cushions, tire jack and luggage floor cover in
the luggage compartment.
■The compact spare tire
●The compact spare tire is identif ied by the label “TEMPORARY USE
ONLY” on the tire sidewall.
Use the compact spare tire temporarily, and only in an emergency.
●Make sure to check the tire inflatio n pressure of the compact spare tire.
(  P. 533)
■After completing the tire change
The tire pressure warning system must be reset. ( P. 429)
■When using the compact spare tire
As the compact spare tire is not equipped with a tire pressure warning
valve and transmitter, lo w inflation pressure of the spare tire will not be
indicated by the tire pressure warning system. Also, if you replace the
compact spare tire after the tire pressure warning light comes on, the light
remains on.
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6
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