2012 TOYOTA PRIUS PHV battery

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.

227
2-1. Driving procedures
PRIUS PHV_OM_OM47818U_(U)
2
When driving
■
Operating your vehicle in a foreign country
Comply with the relevant vehicle registration laws and confirm the availability
of the correct fuel. ( P. 613)
■ For efficient use
● Shift the shift position to D when driving.
In the N position, the gasoline engine operates but electricity cannot be
generated. The hybrid battery (traction battery) will discharge, requiring
unnecessary engine power to charge.
● Drive your vehicle smoothly.
Avoid abrupt acceleration and deceleration. Gradual acceleration and
deceleration will make more effective use of the electric motor (traction
motor) without having to use gasoline engine power.
● Avoid repeated acceleration.
Repeated acceleration consumes hybrid battery (traction battery) power,
resulting in poor acceleration. Battery power can be restored by driving
with the accelerator pedal slightly released.
● Shift the shift position to P when parking.
In the N position, the hybrid battery (traction battery) does not charge.
Leaving the shift position in the N position for an extended period of time
may discharge the hybrid battery (traction battery). The vehicle cannot
run if the hybrid battery (traction battery) is discharged.

241
2-1. Driving procedures
PRIUS PHV_OM_OM47818U_(U)
2
When driving
■
Auto power off function
If the vehicle is left in ACCESSORY mode for more than 20 minutes or ON
mode (the hybrid system is not operating) for more than an hour with the
shift position in P, the “POWER” switch will automatically turn off. However,
this function cannot entirely prevent the 12-volt battery from discharging. Do
not leave the vehicle with the “POWER” switch in ACCESSORY or ON mode
for long periods of time when the hybrid system is not operating.
■ Sounds and vibrations specific to a hybrid vehicle
 P. 4 2
■ Electronic key battery depletion
 P. 123
■ When the ambient temperature is low, such as during winter driving
conditions
The “READY” indicator may flash for a long time when the hybrid system\
is
starting. Driving will become possible once the “READY” indicator has illumi-
nated. Wait until the “READY” indicator has illuminated.
■ Conditions aff ecting operation
 P. 1 1 9
■ Notes for the entry function
 P. 120
■ If the hybrid system does not start
● The immobilizer system may not have been deactivated. ( P. 179)
Contact your Toyota dealer.
● The charging cable may be connected to the vehicle. ( P. 91)

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

244 2-1. Driving procedures
PRIUS PHV_OM_OM47818U_(U)
NOTICE
■To prevent 12-volt battery discharge
● Do not leave the “POWER” switch in ACCESSORY or ON mode for long
periods of time without the hybrid system on.
● If the hybrid system is off, but the indicator on the “POWER” switch is illu-
minated, this indicates that the “POWER” switch is still turned on. When
exiting the vehicle, always check that the “POWER” switch is off.
■ Symptoms indicating a malfunct ion with the “POWER” switch
If the “POWER” switch seems to be operating somewhat differently than
usual, such as the switch sticking slightly, there may be a malfunction. Con-
tact your Toyota dealer immediately.

250 2-1. Driving procedures
PRIUS PHV_OM_OM47818U_(U)
●Situations where the shift position will automatically change to N:
• When the P position switch is pressed while the vehicle is running.
*1
• When an attempt is made to select the R position by moving the shift
lever when the vehicle is moving forward.
*2
• When an attempt is made to select the D position by moving the shiftlever when the vehicle is moving in reverse.
*3
• When an attempt is made to change the shift position from R to B bymoving the shift lever.
*1: Shift position may be changed to P when driving at extremely lowspeeds.
*2: Shift position may be changed to R when driving at low speeds.
*3: Shift position may be changed to D when driving at low speeds.
■ Reverse warning buzzer
When shifting into R, a buzzer will sound to inform the driver that the shift
position is in R.
■ Automatically P position selection function
When the shift position is in a position other than P, pressing the “POWER”
switch with the vehicle stopped completely will cause the shift position to
change to P automatically, and then the “POWER” switch will turn off.
■ If the shift position cannot be shifted from P
There is a possibility that the 12-volt battery is discharged. Check the 12-volt
battery in this situation. ( P. 594)

251
2-1. Driving procedures
PRIUS PHV_OM_OM47818U_(U)
2
When driving
■
About engine braking
When shift position B is selected, releasing the accelerator pedal will apply
engine braking.
● When the vehicle is driven at high speeds, compared to ordinary gaso-
line-fueled vehicles, the engine braking deceleration is felt less than that
of other vehicles.
● The vehicle can be accelerated even when shift position B is selected.
If the vehicle is driven continuously in the B position, fuel efficiency will
become low. Usually, shift the shift position to D.
■ When driving with cruise control or radar cruise control activated
Even if switching the driving mode to power mode with the intent of enabling
engine braking, engine braking will not activate because cruise control or
radar cruise control will not be canceled.
■ When canceling Eco drive mode/power mode
● Press the switch again. Also, power mode will be canceled automatically
when the “POWER” switch is turned off. However, Eco drive mode will
not be canceled automatically until the switch is pressed, even if the
“POWER” switch is turned off.
● When in Eco drive mode, if the power mode switch is pressed or the
operation is reversed, the mode will switch to that of the last switch to be
pressed.
■ After charging/reconnecting the 12-volt battery
 P. 473
■ Customization
Settings (e.g. Reverse warning buzzer) can be changed.
(Customizable features P. 639)