Page 481 of 620
481
PRIUS v_OM_OM47B12U_(U)
8When trouble arises
8-1. Essential information
Emergency flashers .......... 482
If your vehicle has to
be stopped in an
emergency ...................... 483
8-2. Steps to take in an
emergency
If your vehicle needs to
be towed ......................... 484
If you think something is
wrong .............................. 489
If a warning light turns on
or a warning buzzer
sounds ............................ 490
If a warning message is
displayed......................... 503
If you have a flat tire.......... 521
If the hybrid system will
not start ........................... 534
If the electronic key does
not operate properly........ 536
If the 12-volt battery is
discharged ...................... 538
If your vehicle overheats ... 543
If the vehicle becomes
stuck ............................... 548
Page 484 of 620

484
PRIUS v_OM_OM47B12U_(U)
8-2. Steps to take in an emergency
If your vehicle needs to be towed
In the following situations, it is not possible to be towed by another
vehicle using cables or chains, as the front 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. (P. 492, 505)
●There is a malfunction in the immobilizer system. (P. 82)
●There is a malfunction in the smart key system. (P. 536)
●The 12-volt battery is discharged. (P. 538)
The following may indicate a problem with your hybrid transmission.
Contact your Toyota dealer or commercial towing service before tow-
ing.
●The hybrid system warning light turns on or the hybrid system
warning message is displayed on the multi-information display and
the vehicle does not move.
●The vehicle makes an abnormal sound.
Do not tow with a sling-type truck
to prevent body damage.
If towing is necessary, we recommend having your vehicle
towed by your Toyota dealer or commercial towing service,
using a wheel-lift type truck or flat bed truck.
Use a safety chain system for all towing, and abide by all state/
provincial and local laws.
Situations when it is not possible to be towed by another vehicle
Situations when it is necessary to contact dealers before towing
Towing with a sling-type truck
Page 501 of 620

5018-2. Steps to take in an emergency
PRIUS v_OM_OM47B12U_(U)
8
When trouble arises
After taking the specified steps to correct the suspected problem,
check that the warning light turn off.
Follow the correction procedures. (vehicles without multi-infor-
mation display)
Interior
buzzerExterior
buzzerWarning
lightDetailsCorrection procedure
Once
The electronic key
is not detected
when an attempt
is made to start
the hybrid system.
Start the hybrid system
with the electronic key
present.
The power switch
has been pressed
while the elec-
tronic key was not
detected inside
the vehicle.
Confirm the location of
the electronic key.
(P. 130)
If the warning light does
not extinguish even
though the electronic
key is within operating
range, touch the elec-
tronic key to the power
switch while depressing
the brake pedal
(P. 536)
Transmission
between the elec-
tronic key and the
vehicle is being
blocked, or the bat-
tery in the electronic
key has been
depleted.
Once
Driving has been
started without
the correct elec-
tronic key inside
the vehicle.
Confirm the location of
the electronic key.
Page 502 of 620

5028-2. Steps to take in an emergency
PRIUS v_OM_OM47B12U_(U)
Once3 times
The electronic key
was carried out-
side 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.
The electronic key
was carried out-
side the vehicle
and the driver’s
door was opened
and closed while
the shift position
P was selected
without turning off
the power switch.
Turn the power switch
off or bring the elec-
tronic key back into the
vehicle.
Contin-
uous
An attempt was
made to exit the
vehicle with the
electronic key and
lock the doors
without first turn-
ing the power
switch off.
Turn the power switch
off and lock the doors
again.
Contin-
uousContin-
uous
The electronic key
was carried out-
side the vehicle
and the driver’s
door was opened
and closed while
any shift position
other than P was
selected without
turning off the
power switch.
• Shift the shift position
to P.
• Bring the electronic
key back into the
vehicle.
Interior
buzzerExterior
buzzerWarning
lightDetailsCorrection procedure
Page 517 of 620

5178-2. Steps to take in an emergency
PRIUS v_OM_OM47B12U_(U)
8
When trouble arises
Interior
buzzerExterior
buzzerWarning messageDetails/Actions
Power was turned off due to the
automatic power off function.
Next time when starting
the hybrid system, oper-
ate the hybrid system for
approximately 5 minutes
to recharge the 12-volt bat-
tery.
Con-
tinu-
ousThe driver’s door was opened
while any shift position other
than P was selected without
turning off the power switch.
Shift the shift position to P.
Con-
tinu-
ousContin-
uous
The electronic key was carried
outside the vehicle and the
driver’s door was opened and
closed while any shift position
other than P was selected with-
out turning off the power switch.
Shift the shift position to P.
Bring the electronic key
back into the vehicle.
OnceAn attempt was made to start
the hybrid system without the
electronic key being present, or
the electronic key was not func-
tioning normally.
Start the hybrid system
with the electronic key
present.
An attempt was made to drive
when the regular key was not
inside the vehicle.
Confirm that the elec-
tronic key is inside the
vehicle.
(Flashes)
(Flashes)
(Flashes)
Page 518 of 620

5188-2. Steps to take in an emergency
PRIUS v_OM_OM47B12U_(U)
Once3 times
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.
The electronic key was carried
outside the vehicle and the
driver’s door was opened and
closed while the shift position P
was selected without turning off
the power switch.
Turn the power switch off.
Bring the electronic key
back into the vehicle.
Once
Sounds
once for
5
seconds
An attempt was made to exit
the vehicle with the electronic
key and lock the doors without
first turning the power switch
off.
Turn the power switch off
and lock the doors again.
Once
An attempt was made to turn
the power switch off when the
shift position was not in P.
To turn off the hybrid sys-
tem, first shift the shift
position to P and then turn
the power switch off.
Interior
buzzerExterior
buzzerWarning messageDetails/Actions
(Flashes)
(Displayed alternately)
(Flashes)
(Flashes)
Page 519 of 620
5198-2. Steps to take in an emergency
PRIUS v_OM_OM47B12U_(U)
8
When trouble arises
Once
Sounds
once for
5
seconds
• An attempt was made to lock
the doors using the smart key
system while the electronic
key was still inside the vehi-
cle.
• An attempt was made to lock
either front door by opening a
door and putting the inside
lock button into the lock posi-
tion, then closing the door
with the electronic key still
inside the vehicle.
Retrieve the electronic key
from the vehicle and lock
the doors again.
Once
• When the doors were
unlocked with the mechanical
key and then the power
switch was pressed, the elec-
tronic key could not be
detected in the vehicle.
• The electronic key could not
be detected in the vehicle
even after the power switch
was pressed two consecu-
tive times.
Touch the electronic key to
the power switch while
depressing the brake
pedal.
Interior
buzzerExterior
buzzerWarning messageDetails/Actions
(Flashes)
(Flashes)
Page 520 of 620
5208-2. Steps to take in an emergency
PRIUS v_OM_OM47B12U_(U)
■Warning messages
P. 516
■Warning buzzer
P. 497
Once
The driver’s door was opened
and closed with the power
switch turned off and then the
power switch was put in
ACCESSORY mode twice with-
out the hybrid system being
started.
Press the power switch
while depressing the brake
pedal.
During a hybrid system starting
procedure in the event that the
electronic key was not function-
ing properly (P. 536), the
power switch was touched with
the electronic key.
Press the power switch
within 10 seconds of the
buzzer sounding.
Once
An attempt was made to start
the hybrid system with the shift
position in N.
Shift the shift position to P
and start the hybrid sys-
tem.
Once
The electronic key has a low
battery.
Replace the electronic key
battery. (P. 461)
Interior
buzzerExterior
buzzerWarning messageDetails/Actions
(Flashes)
(Flashes)