Page 397 of 509

3977-2. Steps to take in an emergency
PRIUS +_OM_OM47B24E_(EE)
7
When trouble arises
After taking the specified steps to correct the suspected problem,
check that the smart entry & start system warning light or the smart
entry & start system indicator light turn off.
Follow the correction procedures. (vehicles without multi-infor-
mation display)
InteriorbuzzerExterior buzzerWarning lightWarning light/DetailsCorrection procedure
Continuous Continuous
(Flashes in yellow)
Smart entry & start
system warning light
The electronic key was
carried outside the
vehicle and the
driver’s door was
opened and closed
while any shift posi-
tion other than P was
selected without turn-
ing off the power
switch. • Change the
shift position to
P.
• Bring the elec- tronic key back
into the vehicle.
Once3 times
(Flashes in yellow)
Smart entry & start
system warning light
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 or bring
the electronic key
back into the vehi-
cle.
Page 398 of 509

3987-2. Steps to take in an emergency
PRIUS +_OM_OM47B24E_(EE)
Once3 times
(Flashes in yellow)
Smart entry & start
system warning light
Indicates that a door
other than the driver’s
door has been opened
and closed with the
power switch in any
mode other than off
and the electronic key
outside of the detec-
tion area.
Confirm the loca-
tion of the elec-
tronic key.
OnceContinuous
(5 seconds)
(Flashes in yellow)
Smart entry & start
system warning light
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(Flashes in
yellow for 15 seconds)
Smart entry & start
system warning light
Indicates that the elec-
tronic key is not
present when attempt-
ing to start the engine.
Confirm the loca-
tion of the elec-
tronic key.
9 times
(Flashes in yellow)
Smart entry & start
system warning light
An attempt was made
to drive when the regu-
lar key was not inside
the vehicle.
Confirm that the
electronic key is
inside the vehicle.
InteriorbuzzerExterior buzzerWarning lightWarning light/DetailsCorrection procedure
Page 399 of 509

3997-2. Steps to take in an emergency
PRIUS +_OM_OM47B24E_(EE)
7
When trouble arises
Once(Flashes in
yellow for 15 seconds)
Smart entry & start
system warning light
Indicates that the elec-
tronic key battery is
low.
Replace the bat-
tery. ( →P. 361)
Once(Flashes in
yellow for 15 seconds)
Smart entry & start
system warning light
Indicates a malfunction
in the smart entry &
start system.
Have the vehicle
inspected by any
authorized Toyota
dealer or repairer,
or another duly
qualified and
equipped profes-
sional.
Once(Flashes in
yellow for 30 seconds)
Smart entry & start
system warning light
• 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 con-
secutive times.
Touch the elec-
tronic key to the
power switch
while depressing
the brake pedal.
InteriorbuzzerExterior buzzerWarning lightWarning light/DetailsCorrection procedure
Page 412 of 509

4127-2. Steps to take in an emergency
PRIUS +_OM_OM47B24E_(EE)
InteriorbuzzerExterior 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.
Contin-
uous
The 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.
Contin-
uousContin-
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.
Once
An 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)
(Displayed alternately)
(Flashes)
(Flashes)
Page 413 of 509
4137-2. Steps to take in an emergency
PRIUS +_OM_OM47B24E_(EE)
7
When trouble arises
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.
Interior
buzzerExterior buzzerWarning messageDetails/Actions
(Flashes)
(Displayed alternately)
(Flashes)
Page 414 of 509
4147-2. Steps to take in an emergency
PRIUS +_OM_OM47B24E_(EE)
Once
Sounds
once for 5
seconds
• An attempt was made to lockthe doors using the smart
entry & start system while the
electronic key was still inside
the vehicle.
• 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 by
pulling on the outside door
handle 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 415 of 509
4157-2. Steps to take in an emergency
PRIUS +_OM_OM47B24E_(EE)
7
When trouble arises
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. 450), 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. 361)
Interior
buzzerExterior buzzerWarning messageDetails/Actions
(Flashes)
(Flashes)
Page 448 of 509

4487-2. Steps to take in an emergency
PRIUS +_OM_OM47B24E_(EE)
If the hybrid system will not start
One of the following may be the cause of the problem:
●The electronic key may not be functioning properly.
* (→ P. 450)
● There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle. ( →P. 8 7 )
● There may be a malfunction in the immobilizer system.
* (→ P. 9 1 )
● There may be a malfunction in the shift control system.
*
( → P. 212, 389, 402)
● The hybrid system may be malfunctioning due to an electrical prob-
lem such as electronic key battery depletion or a blown fuse. How-
ever, depending on the type of malfunction, an interim measure is
available to start the hybrid system. ( →P. 449)
*: It may not be possible to shift the shift position other than P.
One of the following may be the cause of the problem:
● The 12-volt battery may be discharged. ( →P. 452)
● The 12-volt battery terminal connections may be loose or corroded.
(→ P. 337)
Reasons for the hybrid system not starting vary depending on
the situation. Check the following and perform the appropriate
procedure:
The hybrid system will not start even though the correct starting
procedure is being followed. ( →P. 207)
The interior lights and headlights are dim, or the horn does not
sound or sounds at a low volume.