start TOYOTA PRIUS PLUG-IN HYBRID 2013 1.G Repair Manual

456 4-3. Do-it-yourself maintenance
PRIUS PHV_OM_OM47787U_(U)
CAUTION
■Using the tire jack
Improper use of the tire jack may cause the vehicle to suddenly fall off
the jack, leading to death or serious injury.
Observe the following precautions:
●Do not use the tire jack for any purpose other than replacing tires or
installing and removing tire chains.
●Only use the tire jack that comes with this vehicle for replacing a flat
tire.
Do not use it on other vehicles, and do not use other tire jacks for
replacing tires on this vehicle.
●Always check that the tire jack is securely set to the jack point.
●Do not put any part of your body under the vehicle while it is supported
by the jack.
●Do not start or run the hybrid system while your vehicle is supported by
the jack.
●Do not raise the vehicle while someone is inside.
●When raising the vehicle, do not put an object on or under the jack.
●Do not raise the vehicle to a hei ght greater than that required to
replace the tire.
●Use a jack stand if it is necessary to get under the vehicle.
Take particular care when lowering the vehicle to ensure that no one
working on or near the vehicle may be injured.

473
4-3. Do-it-yourself maintenance
PRIUS PHV_OM_OM47787U_(U)
4
Maintenance and care
■
After charging/reconnecting the 12-volt battery
● Unlocking the doors using the smart key system may not be possible
immediately after reconnecting the 12-volt battery. If this happens, use
the wireless remote control or the mechanical key to lock/unlock the
doors.
● Start the hybrid system with the “POWER” switch in ACCESSORY mode.
The hybrid system may not start with the “POWER” switch turned off.
However, the hybrid system wi ll operate normally from the second
attempt.
● The “POWER” switch mode is recorded by the vehicle. If the 12-volt bat-
tery is reconnected, the vehicle will return the “POWER” switch mode to
the status it was in before the 12-volt battery was disconnected. Make
sure to turn off the power before disconnect the 12-volt battery. Take
extra care when connecting the 12-volt battery if the “POWER” switch
mode prior to discharge is unknown.
● Restart the hybrid system, depress the brake pedal, and confirm that it is
possible to shift into each shift position.
If the system will not start even after multiple attempts at all methods above,
contact your Toyota dealer.

When trouble arises5
523
PRIUS PHV_OM_OM47787U_(U)
5-1. Essential informationEmergency flashers ......... 524
If your vehicle needs to be towed ........................ 525
If you think something is wrong ......................... 532
5-2. Steps to take in an emergency
If a warning light turns on or a warning buzzer
sounds ........................... 533
If a warning message is displayed .................... 546
If you have a flat tire......... 566
If the hybrid system will not start .......................... 588
If you lose your keys ........ 590
If the electronic key does not operate properly....... 591
If the 12-volt battery is discharged ..................... 594
If your vehicle overheats ....................... 600
If the vehicle becomes stuck .............................. 605
If your vehicle has to be stopped in an
emergency ..................... 607

530 5-1. Essential information
PRIUS PHV_OM_OM47787U_(U)
CAUTION
■Caution while towing
● Use extreme caution when towing the vehicle.
Avoid sudden starts or erratic driving maneuvers which place excessive
stress on the emergency towing eyelets and the cables or chains. Always
be cautious of the surroundings and other vehicles while towing.
● Do not turn the “POWER” switch off.
This may lead to an accident as the front wheels will be locked by the
parking lock.
● If the hybrid system is off, the power assist for the brakes and steering will
not function, making steering and braking more difficult.
■ Installing towing eyelets to the vehicle
Make sure that towing eyelets are installed securely.
If not securely installed, towing eyelets may come loose during towing. This
may lead to accidents that cause serious injury or even death.

536 5-2. Steps to take in an emergency
PRIUS PHV_OM_OM47787U_(U)
Warning lightWarning light/Details
(Flashes)
(If equipped) Pre-collision system warning light
Indicates a malfunction in the pre-collision system
The warning light will operate as follows, even when the
system is not malfunctioning:
• The light will flash quickly when the system is operating. (P. 335)
• The light will turn on when the pre-collision braking is disabled. ( P. 336)
• The light will turn on when the system cannot tempo- rarily be used. ( P. 551)
(Turns on) Slip indicator light
Indicates a malfunction in:
•VSC;
• TRAC; or
• Hill-start assist control
Flashes when the above systems and/or ABS are oper-
ating. ( P. 329)
Brake system warning light (yellow indicator) Indicates a malfunction in:
• The regenerative braking system; or
• The electronically controlled brake system

(Flashes)
(If equipped) Automatic headlight leveling system warning light
Indicates a malfunction in the automatic headlight level-
ing system

(Flashes)
(If equipped) Cruise control indicator
Indicates a malfunction in the cruise control/dynamic
radar cruise control

(Flashes)
(If equipped) Radar cruise control indicator
Indicates a malfunction in the dynamic radar cruise con-
trol

544 5-2. Steps to take in an emergency
PRIUS PHV_OM_OM47787U_(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.

5
When trouble arises
549
5-2. Steps to take in an emergency
PRIUS PHV_OM_OM47787U_(U)
Warning messageDetails
(Flashes)
(If equipped) Indicates a malfunction in the radar cruise control sys-
tem.
A buzzer also sounds.
Press the “ON-OFF” button once to deactivate the
system, and then press the button again to reacti-
vate the system.
Hybrid battery (traction battery) inspection or replace-
ment time. Have the hybrid battery (traction battery) inspected
by your Toyota dealer immediately.
Hybrid system restarting will soon be disabled. A buzzer also sounds.
If you continue to use the vehicle in this state, you
will soon become unable to restart the hybrid sys-
tem. Have the hybrid battery (traction battery)
inspected by your Toyota dealer immediately.
Indicates that restarting of the hybrid system is not
possible. Contact your Toyota dealer immediately.

5
When trouble arises
553
5-2. Steps to take in an emergency
PRIUS PHV_OM_OM47787U_(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.

556 5-2. Steps to take in an emergency
PRIUS PHV_OM_OM47787U_(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.
Interior buzzerExterior 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.

5
When trouble arises
561
5-2. Steps to take in an emergency
PRIUS PHV_OM_OM47787U_(U)
Interior
buzzerExterior buzzerWarning messageDetailsCorrection procedure
Once 
(Flashes)The elec-
tronic key
does not
operate
properly.
P. 591
 Power
was
turned off
due to
the auto-
matic
power off
function.Next time when
starting the
hybrid system,
increase the
engine speed
slightly and
maintain that
level for approxi-
mately 5 min-
utes to charge
the battery.
NOTICE
■
While the engine oil level warning is displayed
Continued engine operation with low engine oil will damage the engine.
■ Engine oil maintenance message
The warning message is based on the projected driving range after engine
oil maintenance message is reset.
The system does not monitor the purity of the engine oil.