2012 TOYOTA PRIUS PHV stop start

1
2
3
4
5
6
7
5
PRIUS PHV_OM_OM47818U_(U)
4-1. Maintenance and careCleaning and protecting the vehicle exterior............ 424
Cleaning and protecting the vehicle interior............. 428
4-2. Maintenance Maintenance requirements ..................... 431
General maintenance.......... 434
Emission inspection and maintenance (I/M)
programs........................... 438
4-3. Do-it-yourself maintenance Do-it-yourself service precautions ....................... 439
Hood ................................... 442
Positioning a floor jack ........ 445
Replacing the tire ................ 448
Engine compartment ........... 459
12-volt battery ..................... 471
Tires .................................... 476
Tire inflation pressure ......... 486
Wheels ................................ 490
Electronic key battery.......... 493
Checking and replacing fuses ................................. 495
Light bulbs........................... 507 5-1. Essential information
Emergency 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
4Maintenance and care5When trouble arises

34 1-1. Plug-in hybrid system
PRIUS PHV_OM_OM47818U_(U)
■When in HV mode
The vehicle can be used in the same way as a standard hybrid
vehicle.
In HV mode, controls are primarily carried out as follows in
accordance with the driving conditions.
●The gasoline engine stops when the vehicle is stopped.
● During start off, the electric motor (traction motor) drives the
vehicle.
● During normal driving, the gasoline engine and electric motor
(traction motor) are controlled effectively, and the vehicle is
driven with optimum fuel efficienc y. Also, when necessary, the
electric motor (traction motor) operates as an electrical gener-
ator to charge the hybrid battery (traction battery).
● When the accelerator pedal is depressed heavily, drive force
from both the gasoline engine an d the electric motor (traction
motor) is used to accelerate.
■ When braking (regenerative braking)
The electric motor (traction mo tor) charges the hybrid battery
(traction battery).
The EV driving range can be extended by actively using this
regenerative braking to store el ectricity in the hybrid battery
(traction battery).
Moreover, as fuel consumption is also reduced when in HV
mode, the regenerative braking sy stem can be used effectively.

41
1-1. Plug-in hybrid system
1
Before driving
PRIUS PHV_OM_OM47818U_(U)
■
When continually using EV mode only
After driving for approximately 124 miles (200 km) with the gasoline engine
off, the gasoline engine may start for a short amount of time in order to pro-
tect the system.
■ Conditions in which the gasoline engine may not stop
The gasoline engine starts and stops automatically. However, it may not stop
automatically in the following conditions
*:
● During gasoline engine warm-up
● When the temperature of the hybrid battery (traction battery) is high or
low
● During hybrid battery (traction battery) charging
● When the heater is switched on
*: Depending on the circumstances, the gasoline engine may also not stop
automatically in situations other than those above.
■ If the vehicle is not used for a long time
The 12-volt battery may discharge. In this event, charge the 12-volt battery.
(P. 594)
In order to prevent the hybrid battery (traction battery) from becoming
extremely low in charge, start the hybrid system at least once every 2 or 3
months, and turn the “POWER” switch off after the gasoline engine has
stopped automatically. (If the gasoline engine does not start up even after
approximately 10 seconds have passed since the “READY” indicator came
on, the “POWER” switch can be turned to OFF without any further action.)

42 1-1. Plug-in hybrid system
PRIUS PHV_OM_OM47818U_(U)
■Sounds and vibrations specific to a hybrid vehicle
There may be no engine sounds or vibration even though the vehicle is able
to move. For safety, apply the parking brake and make sure to shift the shift
position to P when parked.
The following sounds or vibrations may occur when the hybrid system is
operating, and are not a malfunction.
● The brake system operation sound heard from the front of the vehicle
when the driver’s door is opened.
● Motor sounds may be heard from the engine compartment.
● Sounds may be heard from the hybrid battery (traction battery) behind
the rear seat when the hybrid system starts or stops.
● Sounds may be heard from the transmission when the gasoline engine
starts or stops, when driving at low speeds, or during idling.
● Engine sounds may be heard when accelerating sharply.
● Sounds may be heard due to regenerative braking when you press the
brake pedal or release the accelerator pedal.
● Vibration may be felt when the gasoline engine starts or stops.
● Cooling fan sounds may be heard from the air intake vent. ( P. 45)
● The operation sound of the air conditioning system (air conditioning com-
pressor, blower motor).

45
1-1. Plug-in hybrid system
1
Before driving
PRIUS PHV_OM_OM47818U_(U)
Hybrid battery (traction battery) air vents
There are air intake vents on the
side of the rear right seatback
and on the front corner of the left
rear seat cushion for the purpose
of cooling the hybrid battery
(traction battery). If the vents
become blocked, the hybrid bat-
tery (traction battery) may over-
heat, leading to a reduction in
hybrid battery (traction battery)
output.
Emergency shut off system When a certain level of impact is detected by the impact sensor, the
emergency shut off syst em blocks off the high voltage current and
stops the fuel pump to minimize t he risk of electrocution and fuel
leakage. If the emergency shut off sy stem activates, your vehicle will
not restart. To restart the hybrid system, contact your Toyota dealer.

87
1-2. Charging
1
Before driving
PRIUS PHV_OM_OM47818U_(U)
■
Setting the charging timer function
Stop the vehicle and press the
charging timer switch.
The multi-information display will
switch to the charging timer dis-
play.
If not changing the set time: go to
Press and hold the charging
timer switch.
The time display will change from
solid to flashing.
Press the charging timer switch
to select a setting mode.
Start time setting mode
Finish time setting mode
The mode will switch with each
press of the charging timer
switch.
STEP 1
STEP 6
STEP 2
STEP 3

91
1-2. Charging
1
Before driving
PRIUS PHV_OM_OM47818U_(U)
■
Safety functions
● The hybrid system will not start while the charging cable is attached to
the vehicle, even if the “POWER” switch is operated.
● If the charging cable is connected while the “READY” indicator is illumi-
nated, the hybrid system will stop automatically and driving will not be
possible.
● When the charging cable is connected to the vehicle, the shift position
cannot be changed from P to another position.
● If the latch release button is pressed, charging will not begin even if the
charging cable is connected.
Also, charging will be stopped if the latch release button is pressed and
held for several seconds during charging. When restarting charging, rein-
sert the charging connector after pulling it out, and check that the charg-
ing indicator illuminates.
■ For correct operat ion of the charging timer function
Check the following points.
● Check that the time is correct.
● Check that the “POWER” switch is OFF.
● Do not use a connector which has an electricity interruption function
(including timer functions).
(Use a connector which supplies electricity normally.)
■ Automatic cancelation of the charging timer function
● If the Remote Air Conditioning System is operated while the charging
cable is connected, the charging timer function will be canceled. Charg-
ing will commence after the Remote Air Conditioning System has been
turned off.
● Charging will not commence if the “POWER” switch is not OFF, even at
the set time.

99
1-2. Charging
1
Before driving
PRIUS PHV_OM_OM47818U_(U)
A problem has occurred during charging
Refer to the following table and carry out the appropriate correction
procedure.
SituationReasonCorrection procedure
The power indicator on
the CCID (Charging
Circuit Interrupting
Device) does not illumi-
nate even when con-
nected to a power
source The plug is not properly
connected with the out-
let.
Insert the plug firmly
into the outlet.
There is a power out-
age. Restart charging once
power has been
restored.
The circuit breaker has
activated. Check the circuit
breaker.
If there is nothing
unusual, connect to
another outlet and
check that charging is
possible.
If charging is possible,
there is probably a
problem with the first
outlet. Contact your
building manager or an
electrician.
The charging cable
connecting the CCID
(Charging Circuit Inter-
rupting Device) with
the plug is damaged. Stop charging immedi-
ately, and contact your
Toyota dealer.