battery TOYOTA PRIUS PHV 2012 Owner's Guide

92 1-2. Charging
PRIUS PHV_OM_OM47818U_(U)
■Charging timer function (finish time setting mode)
● The finish time setting mode should only be used as a reference for the
time at which charging will finish.
Charging may not complete at the finish time depending on the effects of
the electricity supply, temperature etc. In this event, charging will continue
until completed.
● If the function detects that charging cannot be finished on time, charging
will start immediately, and will continue until fully charged.
■ Charging indicator
● The charging indicator illuminates if the Remote Air Conditioning System
(P. 371) is used during charging or while the charging cable is con-
nected.
● If a system malfunction occurs during charging or during Remote Air
Conditioning System use, the indicator will flash for approximately 10
seconds and then turn off.
■ When the outside temperature is low or high
The level shown on the remaining charge display ( P. 60) may drop slightly
when the “POWER” switch is turned to ON mode, even if charging has been
completed and the hybrid battery (traction battery) is fully charged. However,
this does not indicate a malfunction.
■ Using a DC Charger
DC Chargers cannot be used with this vehicle.

93
1-2. Charging
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Before driving
PRIUS PHV_OM_OM47818U_(U)
■
Charging time may increase
In the following situations, charging time may become longer than normal:
● In very hot or very cold temperatures.
● The vehicle is consuming a lot of electricity, for example, when the head-
lights or emergency flashers switch is on.
● There is a power outage during charging.
● There is an interruption in the electrical supply.
● There is a drop in the voltage of your panel’s AC supply.
● The charge in the 12-volt battery is low, for example due to the vehicle
being left unused for a long period of time.
■ Capacity reduction of the hybrid battery (traction battery)
The charge of the hybrid battery (traction battery) will decline gradually when
the hybrid battery (traction battery) is in use. The rate at which it declines will
differ in accordance with environmental conditions and the way in which the
vehicle is used. By observing the following precautions, battery charge
decline can be suppressed.
● Avoid parking the vehicle in areas with a high temperature under direct
sunlight when the hybrid battery (traction battery) is fully charged.
● Do not accelerate or decelerate frequently and suddenly when driving in
EV mode.
● Avoid frequent driving near the top speed for EV driving. ( P. 40)
● Leave a low level of charge in the hybrid battery (traction battery) when
leaving the vehicle undriven for a long period of time.
After confirming that EV mode has switched to HV mode, turn the
“POWER” switch off.
● Use the charging timer function as much as possible in order to fully
charge the hybrid battery (traction battery) immediately before starting
off.
Also, if the hybrid battery (traction battery) capacity reduces, the EV driving
range decreases. However, vehicle performance does not significantly
become worse.

96 1-2. Charging
PRIUS PHV_OM_OM47818U_(U)
CAUTION
■Battery charger
The battery charger is located under the luggage compartment. Observe the
following precautions.
Failure to do so may cause death or serious injury from burns or electric
shocks.
● Do not touch the battery charger during charging, as it becomes hot.
● Do not disassemble, repair or modify the battery charger.
If repair is necessary, consult your Toyota dealer.
■ If the error warning indicator on the CCID (Charging Circuit Interrupt-
ing Device) stays on during charging
Press the reset button on the CCID (Charging Circuit Interrupting Device)
(P. 102). If the error warning indicator does not turn off even when the
reset button is pressed, an electrical leakage may be occurring in the path to
the power source, or there may be a problem with the charging cable or the
charging system. In this event, stop charging immediately, remove the
charging cable and contact your Toyota dealer. An accident may occur or
damage may be inflicted if charging continues.
■ When the charging cable is connected to the vehicle
Do not operate the shift lever.
In the unlikely event that the charging cable has been damaged, the shift
position may change from P to another position and the vehicle could move,
possibly leading to an accident.

100 1-2. Charging
PRIUS PHV_OM_OM47818U_(U)
SituationReasonCorrection procedure
The error warning indi-
cator on the CCID
(Charging Circuit Inter-
rupting Device) comes
onThe electrical leakage
detection function or the
self-test function has
operated and the power
supply has been inter-
rupted.
Reset the CCID (Charg-
ing Circuit Interrupting
Device). (
P. 102)
The charging indicator
does not illuminate
even though the charg-
ing connector is con-
nectedThe latch release but-
ton is being pressed.
For safety purposes,
charging will be inter-
rupted when the latch
release button is
pressed.
(P. 9 1 )
When connecting the
charging connector to
the vehicle, insert it into
the charging inlet with-
out pressing the latch
release button.
The charging connec-
tor is not properly con-
nected to the charging
inlet. Check that the charg-
ing connector is firmly
connected to the
charging inlet.
If the charging indicator
does not illuminate
even though the charg-
ing connector is firmly
connected, there may
be a problem in the
system. Stop charging
immediately and con-
sult your Toyota dealer.
The hybrid battery
(traction battery) is
already fully charged. 

105
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Before driving
PRIUS PHV_OM_OM47818U_(U)
1-3. Key information
Keys
Using the mechanical keyTo take out the mechanical key,
push the release button and take
the key out.
After using the mechanical key,
store it in the electronic key. Carry
the mechanical key together with
the electronic key. If the electronic
key battery is depleted or the
entry function does not operate
properly, you will need the
mechanical key. (P. 591)
The following keys are provided with the vehicle.
Electronic keys
• Operating the smart key
system ( P. 108, 126)
• Operating the wireless
remote control function
(P. 132)
• Operating the Remote Air
Conditioning System
(P. 371)
Mechanical keys
Key number plate

116 1-4. Opening, closing and locking the doors
PRIUS PHV_OM_OM47818U_(U)
*1: A message will be shown on the multi-information display in the instru-ment cluster.
*2: If the hybrid system does not start when the electronic key is inside thevehicle, the electronic key battery may be depleted or there may be dif-
ficulties receiving signal from the key. ( P. 591)
AlarmSituationCorrection procedure
Interior alarm
pings once
*1
The electronic key has a
low battery Replace the electronic
key battery
An attempt was made to
start the hybrid system
without the electronic key
being present, or the elec-
tronic key was not func-
tioning normally Start the hybrid sys-
tem with the elec-
tronic key present
*2
Interior alarm
pings once and
exterior alarm
sounds 3 times
*1
The driver’s door was
closed after the key was
carried outside the vehicle,
and the “POWER” switch
was not turned OFF
Turn the “POWER”
switch off and close
the driver’s door again
An occupant carried the
electronic key outside the
vehicle and closed the
door while the “POWER”
switch was not OFF Bring the electronic
key back into the vehi-
cle

118 1-4. Opening, closing and locking the doors
PRIUS PHV_OM_OM47818U_(U)
■Battery-saving function
The battery-saving function will be activated in order to prevent the elec-
tronic key battery and the 12-volt battery from being discharged while the
vehicle is not in operation for a long time.
● In the following situations, the smart key system may take some time to
unlock the doors.
• The electronic key has been left in an area of approximately 6 ft. (2 m)
of the outside of the vehicle for 10 minutes or longer.
• The smart key system has not been used for 5 days or longer.
● If the smart key system has not been used for 14 days or longer, the
doors cannot be unlocked at any doors except the driver’s door. In this
case, take hold of the driver’s door handle, or use the wireless remote
control or the mechanical key, to unlock the doors.

119
1-4. Opening, closing and locking the doors
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Before driving
PRIUS PHV_OM_OM47818U_(U)
■
Conditions aff ecting operation
The smart key system, wireless remote control and immobilizer system use
weak radio waves. In the following situations, the communication between
the electronic key and the vehicle may be affected, preventing the smart key
system, wireless remote control and immobilizer system from operating
properly. (Ways of coping: P. 591)
● When the electronic key battery is depleted
● Near a TV tower, electric power plant, gas station, radio station, large dis-
play, airport or other facility that generates strong radio waves or electri-
cal noise
● When carrying a portable radio, ce llular phone, cordless phone or other
wireless communication devices
● When the electronic key is in contact with, or is covered by the following
metallic objects
• Cards to which aluminum foil is attached
• Cigarette boxes that have aluminum foil inside
• Metallic wallets or bags
• Coins
• Hand warmers made of metal
• Media such as CDs and DVDs
● When other wireless key (that emit radio waves) is being used nearby
● When carrying the electronic key together with the following devices that
emit radio waves
• Another vehicle’s electronic key or a wireless key that emits radio
waves
• Personal computers or personal digital assistants (PDAs)
• Digital audio players
• Portable game systems
● If window tint with a metallic content or metallic objects are attached to
the rear window

123
1-4. Opening, closing and locking the doors
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Before driving
PRIUS PHV_OM_OM47818U_(U)
■
If the smart key system does not operate properly
● Locking and unlocking the doors: Use the mechanical key. ( P. 591)
● Starting the hybrid system: P. 592
■ Electronic key battery depletion
● The standard battery life is 1 to 2 years.
● If the battery becomes low, an alarm will sound in the cabin when the
hybrid system stops. ( P. 114)
● As the electronic key always receives radio waves, the battery will
become depleted even if the electronic key is not used. The following
symptoms indicate that the electronic key battery may be depleted.
Replace the battery when necessary. ( P. 493)
• The smart key system or the wireless remote control does not operate.
• The detection area becomes smaller.
• The LED indicator on the key surface does not turn on.
● To avoid serious deterioration, do not leave the electronic key within 3 ft.
(1 m) of the following electrical appliances that produce a magnetic field:
•TVs
• Personal computers
• Cellular phones, cordless phones and battery chargers
• Charging cellular phones or cordless phones
• Induction cookers
• Table lamps
■ When the electronic key battery is fully depleted
 P. 493
■ Customization
Settings (e.g. smart key system) can be changed.
(Customizable features P. 639)

128 1-4. Opening, closing and locking the doors
PRIUS PHV_OM_OM47818U_(U)
■Conditions affecting operation
 P. 1 1 9
■ Electronic key battery depletion
 P. 123
■ To operate the system properly
Make sure to carry the electronic key when operating the system.
Depending on the position and holding condition of the electronic key, the
key may not be detected correctly and the system may not operate properly.
(The door lock prevention may not operate.)
■ Note for the smart key system
● Even when the electronic key is within the effective range (detection
areas), the system may not operate properly.
For example, the electronic key is on the instrument panel, luggage
cover, floor or in the door pockets or glove box when the hybrid system is
started or “POWER” switch modes are changed.
● Even if the electronic key is not inside the vehicle, it may be possible to
start the hybrid system if the electronic key is near the window.