change key battery TOYOTA PRIUS PHV 2012 Owners Manual

123
1-4. Opening, closing and locking the doors
1
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.

130 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)
■ If the electronic key do es not operate properly
 P. 591
■ When the electronic key battery is fully depleted
 P. 493
■ Customization
Settings (e.g. smart key system) can be changed.
(Customizable features P. 639)
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

133
1-4. Opening, closing and locking the doors
1
Before driving
PRIUS PHV_OM_OM47818U_(U)
■
Panic mode
■ Security feature
 P. 1 1 7
■ Conditions aff ecting operation
 P. 1 1 9
■ If the wireless remote cont rol does not operate properly
Locking and unlocking the doors: Use the mechanical key. ( P. 591)
■ Electronic key battery depletion
 P. 123
■ When the electronic key battery is fully depleted
 P. 493
■ Customization
Settings (e.g. door unlocking function) can be changed.
(Customizable features P. 639)
When is pressed for longer than
about one second, an alarm will sound
intermittently and the vehicle lights will
flash to deter any person from trying to
break into or damage your vehicle.
To stop the alarm, press any button on
the electronic key.

242 2-1. Driving procedures
PRIUS PHV_OM_OM47818U_(U)
■When the “POWER” switch in dicator flashes in amber
The system may be malfunctioning. Have the vehicle inspected by your
Toyota dealer immediately.
■ If the “READY” indicator does not come on
If the “READY” indicator does not come on when you press the “POWER”
switch with the shift position in P and the brake pedal depressed, contact
your Toyota dealer immediately.
■ If the hybrid system is malfunctioning
 P. 535
■ If the electronic key battery is depleted
 P. 493
■ Operation of the “POWER” switch
● When operating the “POWER” switch, one short, firm press is enough. If
the switch is pressed improperly, the hybrid system may not start or the
“POWER” switch mode may not change. It is not necessary to press and
hold the switch.
● If attempting to restart the hybrid system immediately after turning the
“POWER” switch off, the hybrid system may not start in some cases.
After turning the “POWER” switch off, please wait a few seconds before
restarting the hybrid system.
■ Automatically P position selection function
 P. 250

373
3-1. Using the air conditioning system
and defogger
PRIUS PHV_OM_OM47818U_(U)
3
Interior features
■Security feature
Any unlocked doors will be automatically locked when the system is operat-
ing. The buzzer will beep and the emergency flashers flash when the doors
have been locked or the system has been turned off.
(The doors locked: Once; The system turned off: Twice)
■ Conditions aff ecting operation
 P. 1 1 9
■ When using the Remote Air Conditioning System
A charging message will be displayed on the multi-information display. Dif-
ferent messages will be displayed depending on when the Remote Air Con-
ditioning System was started (after charging or during charging).
( P. 562)
■ While the Remote Air Conditio ning System is operating
● Depending on the operating condition of the Remote Air Conditioning
System, the electric fan may spin and an operating noise may be heard.
However, this does not indicate a malfunction.
● The Remote Air Conditioning System may stop operating temporarily if
other features that use electricity (for example, the seat heater, lights,
windshield wipers) are in operation or if the charge level of the 12-volt
battery becomes low.
■ Electronic key battery depletion
 P. 123
■ When the electronic key battery is fully depleted
 P. 123
■ Customization
Setting (e.g. Operation using the on the wireless remote control) can
be changed.
(Customizable features P. 645)

384 3-3. Using the interior lights
PRIUS PHV_OM_OM47818U_(U)
Rear interior lightThe light will turn on/off in con-
junction with the front interior
lights
Turns the light on
ITI34P133a
■Illuminated entry system
The lights automatically turn on/off according to “POWER” switch mode, the
presence of the electronic key, whether the doors are locked/unlocked, and
whether the doors are opened/closed.
■ To prevent 12-volt battery discharge
If the interior lights remain on when the door is not fully closed and the inte-
rior light switch (door position on/off) is on, the lights will go off automatically
after 20 minutes.
■ Customization
Setting (e.g. The time elapsed before lights turn off) can be changed.
(Customizable features P. 643)
NOTICE
■To prevent 12-volt battery discharge
Do not leave the lights on longer than necessary when the hybrid system is
off.
Rear interior light

5
When trouble arises
593
5-2. Steps to take in an emergency
PRIUS PHV_OM_OM47818U_(U)
■
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. 493)
■ 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. 240)