2015 TOYOTA PRIUS PLUG-IN HYBRID key

5
When trouble arises
529
5-1. Essential information
PRIUS PHV_OM_OM47A11U_(U)
If your vehicle needs to be towed
Situations when it is not possible to be towed by another vehicle
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 a commercial
towing service.
● There is a malfunction in the shift control system. ( P. 552)
● There is a malfunction in the immobilizer system. ( P. 183)
● There is a malfunction in the smart key system. ( P. 599)
● The 12-volt battery is discharged. ( P. 601)
Situations needs to contact dealers before towing
The following may indicate a problem with your hybrid transmission.
Contact your Toyota dealer or commercial towing service before tow-
ing.
● The “CHECK HYBRID SYSTEM” warning message appears on
the multi-information display and the vehicle does not move.
● The vehicle makes an abnormal sound.
If towing is necessary, we recommend having your vehicle towed by
your Toyota dealer or commerci al towing service, using a lift-type
truck or flat bed truck.
Use a safety chain system for all to wing, and abide by all state/pro-
vincial and local laws.

5
When trouble arises
563
5-2. Steps to take in an emergency
PRIUS PHV_OM_OM47A11U_(U)
Have the malfunction repaired immediately.
After taking the specified steps to correct the suspected problem,
check that the warning message and light turn off.
InteriorbuzzerExterior buzzerWarning messageDetailsCorrection procedure
Once 
(Comes on for 15 seconds.)
(Flashes) The electronic
key is not
detected when
attempting to
start the hybrid
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.

564 5-2. Steps to take in an emergency
PRIUS PHV_OM_OM47A11U_(U)
InteriorbuzzerExterior buzzerWarning messageDetailsCorrection procedure
Once 3 times (Flashes)The driver’s
door is opened
and closed
while the elec-
tronic key is out-
side the
detection range
and the
“POWER”
switch is in
ACCESSORY
or ON mode
with the shift
position in P. Turn the
“POWER”
switch to
OFF or
confirm
the loca-
tion of the
electronic
key.
Contin-
uous 
(Flashes)The driver’s
door has been
opened with the
shift position in
a position other
than P and with-
out first turning
the “POWER”
switch is OFF.
Shift the
shift posi-
tion to P.

5
When trouble arises
565
5-2. Steps to take in an emergency
PRIUS PHV_OM_OM47A11U_(U)
Interior
buzzerExterior buzzerWarning messageDetailsCorrection procedure
Once Contin-
uous
(Displayed alternately)(Flashes) The electronic
key has been
taken outside
the vehicle and
the doors have
been locked
without first
turning the
“POWER”
switch to OFF.
(vehicles with
entry function)
Turn the
“POWER”
switch to
OFF and
lock the
doors
again.

566 5-2. Steps to take in an emergency
PRIUS PHV_OM_OM47A11U_(U)
InteriorbuzzerExterior buzzerWarning messageDetailsCorrection procedure
Once Contin-
uous
(Flashes)An attempt to
lock the doors
has been made
using the smart
key system
while the elec-
tronic key is
inside the vehi-
cle. (vehicles
with entry func-
tion)
Take the
electronic
key out-
side the
vehicle,
and lock
the doors
again.
With the key
inside the vehi-
cle, a front door
has been
opened, the
lock lever has
been pulled in
the lock direc-
tion, the door
has been
closed and an
attempt has
been made to
lock the door.

5
When trouble arises
567
5-2. Steps to take in an emergency
PRIUS PHV_OM_OM47A11U_(U)
Interior
buzzerExterior buzzerWarning messageDetailsCorrection procedure
Contin-
uous Contin-
uous
(Displayed alternately)(Flashes) The driver’s
door is opened
and closed
while the elec-
tronic key is out-
side the
detection range
and the
“POWER”
switch is in
ACCESSORY
or ON mode
with the shift
position not in P.
• Shift the
shift posi-
tion to P.
• Confirm the loca-
tion of the
electronic
key.
Once 
(Comes on for 15 seconds.)
The electronic
key battery is
low. Replace
the bat-
tery.
(
P. 497)

568 5-2. Steps to take in an emergency
PRIUS PHV_OM_OM47A11U_(U)
InteriorbuzzerExterior buzzerWarning messageDetailsCorrection procedure
Once 
(Flashes)An open door
has been
closed and the
“POWER”
switch has been
turned twice to
the ACCES-
SORY mode
from OFF. Press the
“POWER”
switch
while
applying
the
brakes.
Once 
(Flashes)The electronic
key does not
operate prop-
erly.
P. 599
 Power was
turned off due to
the automatic
power off func-
tion.Next time
when
starting
the hybrid
system,
operate
the hybrid
system for
approxi-
mately 5
minutes to
recharge
the 12-volt
battery.

596
5-2. Steps to take in an emergency
PRIUS PHV_OM_OM47A11U_(U)
If the hybrid system will not start
Reasons for the hybrid system not starting vary depending on the
situation. Check the following a nd perform the appropriate proce-
dure:
■ The hybrid system will not start even though the correct
starting procedure is being followed ( P. 242)
One of the following may be the cause of the problem:
● The charging cable may be attached to the vehicle. ( P. 96)
● The electronic key may not be functioning properly.
*
(  P. 599)
● There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle. ( P. 4 6 )
● There may be a malfunction in the immobilizer system.
*
(  P. 183)
● There may be a malfunction in the shift control system.
*
(  P. 247, 552)
*: It may not be possible to shift the shift position from P to other posi-
tion.
■ 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. 601)
● The 12-volt battery terminal c onnections may be loose or cor-
roded.