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When trouble arises5
527
PRIUS PHV_OM_OM47A11U_(U)
5-1. Essential informationEmergency flashers ......... 528
If your vehicle needs to be towed ........................ 529
If you think something is wrong ............................. 536
5-2. Steps to take in an emergency
If a warning light turns on or a warning buzzer
sounds ........................... 537
If a warning message is displayed........................ 550
If you have a flat tire......... 574
If the hybrid system will not start .................... 596
If you lose your keys ........ 598
If the electronic key does not operate properly....... 599
If the 12-volt battery is discharged ..................... 601
If your vehicle overheats ....................... 607
If the vehicle becomes stuck .............................. 613
If your vehicle has to be stopped in an
emergency ..................... 615
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548 5-2. Steps to take in an emergency
PRIUS PHV_OM_OM47A11U_(U)
CAUTION
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 pressure telltal e (tire pressure warning light) when
one or more of your tires is significantly under-inflated. Accordingly,
when the low tire pressu re 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 handling and stopping ability.
Please note that the TPMS (tire pressure warning system) is not a sub-
stitute for proper tire main tenance, and it is the driver’s responsibility to
maintain correct tire pressure, even if under-inflation has not reached the
level to trigger illu mination of the TPMS low tire pressure telltale (tire
pressure warning light).
Your vehicle has also been equipped with a TPMS (tire pressure warning
system) malfunction indicator to indi cate when the system is not operat-
ing properly. The TPMS (tire pressure warning system) malfunction indi-
cator is combined with the low tire pressure telltale (tire pressure
warning light). When the system det ects a malfunction, the telltale will
flash for approximately one minute an d then remain continuously illumi-
nated. This sequence will continue upon subsequent vehicle start-ups as
long as the malfunction exists. When the malfunction indi cator is illumi-
nated, the system may not be able to detect or signal low tire pressure
as intended.
Page 558 of 692
558 5-2. Steps to take in an emergency
PRIUS PHV_OM_OM47A11U_(U)
Warning messageDetailsCorrection procedure
(Flashes) The hybrid battery (traction
battery) is low.
A buzzer also sounds. When stopping the
vehicle for a long
period of time, shift
the shift position to
P. The hybrid bat-
tery (traction bat-
tery) cannot be
charged with the
shift position in N.
(Flashes) The hybrid battery (traction
battery) power has dropped
because a long period of time
has elapsed after shifting the
shift position to N.
A buzzer also sounds. Restart the hybrid
system when start-
ing the vehicle.
(Flashes) The transmission is out of P
when attempting to start the
hybrid system.
Shift the shift posi-
tion to P before
pressing the
“POWER” switch.
(Flashes) The driver’s door is opened
when the shift position is in N,
D or B with the hybrid system
on.
Shift the shift posi-
tion to P.
Page 570 of 692

570 5-2. Steps to take in an emergency
PRIUS PHV_OM_OM47A11U_(U)
Charging messagesA message showing the charge results will be displayed if the
“POWER” switch is turned to ON mode after charging has completed
(when the vehicle’s charging indicator has turned off).
If one of the following messages is displayed, follow the correction proce-
dures.
If the message displays again after following the correction procedure,
contact your Toyota dealer.
*: For information about the safety functions, refer to P. 96.
MessageDetailsCorrection procedure
The charging cable has
been connected to the
vehicle while the
“READY” indicator light
was illuminated. A warning buzzer will
sound. The hybrid system auto-
matically stopped due to
operation of the safety
functions
*.
Turn the “POWER”
switch off and perform
charging according to the
procedures on P. 85.
An attempt has been
made to start the hybrid
system while the charg-
ing cable was connected. A warning buzzer will
sound. The hybrid system can-
not be started while the
charging cable is con-
nected due to the safety
functions
*.
Disconnect the charging
cable and start the hybrid
system.
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5-2. Steps to take in an emergency
PRIUS PHV_OM_OM47A11U_(U)
MessageDetailsCorrection
procedure
Charging has been inter-
rupted because the plug
has been disconnected
or some kind of power
failure has occurred. Charging has not fin-
ished properly.
Refer to the procedures
on P. 85 and perform
charging again.
The vehicle can be used
even if charging has not
finished. However, the
distance that can be
driven in EV mode
decreases.
One of the following situ-
ations has occurred:
• The charging connector is not properly inserted
• The latch release button has been pressed and
held
• The charging connector has been disconnected Reinsert the charging
connector to restart
charging.
Charging has been inter-
rupted by a malfunction
in the charging system. Stop charging immedi-
ately, and contact your
Toyota dealer.
Also, driving is possible
when the hybrid system
has been started.
Page 572 of 692
572 5-2. Steps to take in an emergency
PRIUS PHV_OM_OM47A11U_(U)
MessageDetailsCorrection procedure
Charging has been
stopped because of the
high energy consumption
of electrical compo-
nents, such as the head-
lights. Switch the electrical
appliance OFF, and
restart charging by fol-
lowing the procedure on
P. 85.
If the message is still
displayed, the 12-volt
battery may have a low
charge.
In this event, turn the
“POWER” switch OFF
approximately 15 min-
utes after starting the
hybrid system, and
restart charging.
Charging has been
stopped because of
extremely low voltage,
possibly caused by the
plug not being inserted
correctly. Check that the plug is
inserted correctly, and
restart charging by fol-
lowing the procedure on
P. 85.
Check that the plug is
not connected to a
power strip and that an
extension cord, multi-
outlet etc. is not being
used.
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When trouble arises
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5-2. Steps to take in an emergency
PRIUS PHV_OM_OM47A11U_(U)
MessageDetailsCorrection
procedure
Charging has been
stopped because of a
problem with the charg-
ing cable. If the charging cable is
not a genuine Toyota
product, or if you are
charging using a charg-
ing station (other than a
Toyota dealer), try charg-
ing with a genuine Toyota
charging cable.
If the message is still
displayed, contact your
Toyota dealer.
Charging has stopped
because of the continued
high temperature of the
hybrid battery (traction
battery) (in order to pro-
tect the battery). If the desired charge
level has not been
achieved, restart charg-
ing by following the pro-
cedure on P. 85 after the
hybrid battery (traction
battery) has cooled
down.
Page 600 of 692

600 5-2. Steps to take in an emergency
PRIUS PHV_OM_OM47A11U_(U)
Starting the hybrid systemDepress the brake pedal. Touch the Toyota emblem side of
the electronic key to the
“POWER” switch.
If any of the doors is opened or
closed while the key is being
touched to the switch, an alarm
will sound to indicate that the start
function cannot detect the elec-
tronic key.
Press the “POWER” switch within 10 seconds of the buzzer
sounding, keeping the brake pedal depressed.
In the event that the hybrid system still cannot be operated, contact
your Toyota dealer.
STEP 1
STEP 2
■ Stopping the hybrid system
Set the parking brake, shift the shift position to P and press the “POWER”
switch as you normally do when stopping the hybrid system.
■ Replacing the key battery
As the above procedure is a temporary measure, it is recommended that the
electronic key battery be replaced immediately when the battery is depleted.
(P. 497)
■ Changing “POWER” switch modes
Within 10 seconds of the buzzer sounding, release the brake pedal and
press the “POWER” switch.
The hybrid system does not start and modes will be changed each time the
switch is pressed. ( P. 244)
STEP 3