2012 TOYOTA PRIUS V stop start

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PRIUS v_U (OM47784U)
4-1. Maintenance and careCleaning and protecting the vehicle exterior............ 348
Cleaning and protecting the vehicle interior............. 352
4-2. Maintenance Maintenance requirements ..................... 355
General maintenance.......... 358
Emission inspection and maintenance (I/M)
programs........................... 362
4-3. Do-it-yourself maintenance Do-it-yourself service precautions ....................... 363
Hood ................................... 366
Positioning a floor jack ........ 369
Engine compartment ........... 372
12-volt battery ..................... 384
Tires .................................... 389
Tire inflation pressure ......... 398
Wheels ................................ 402
Air conditioning filter............ 405
Electronic key battery.......... 408
Checking and replacing fuses ................................. 410
Light bulbs........................... 421 5-1. Essential information
Emergency flashers............ 436
If your vehicle needs to be towed................................ 437
If you think something is wrong ............................... 443
5-2. Steps to take in an emergency
If a warning light turns on or a warning buzzer
sounds.............................. 444
If you have a flat tire ........... 462
If the hybrid system will not start ............................ 476
If you lose your keys........... 478
If the electronic key does not operate properly ......... 479
If the 12-volt battery is discharged........................ 481
If your vehicle overheats .... 487
If the vehicle becomes stuck ................................. 491
If your vehicle has to be stopped in an
emergency ....................... 493
4Maintenance and care5When trouble arises

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1-1. Hybrid system
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Before driving
PRIUS v_U (OM47784U)
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When stopped/during start off
The gasoline engine stops
* when the vehicle is stopped. During
start off, the electric motor (tra ction motor) drives the vehicle. At
slow speeds or when traveling down a gentle slope, the engine
is stopped
* and the electric motor (traction motor) is used.
When shift position is in N, the hybrid battery (traction battery)
will not be charged. Thus, shift to P when the vehicle is stopped.
In addition, when driving in heavy traffic, use D or B.
*: However, when the hybrid battery (traction battery) need to be charged or while the engine is being warmed up, the gasoline
engine may not stop automatically. ( P. 33)
■ During normal driving
The gasoline engine is predominantly used. The electric motor
(traction motor) charges the hybr id battery (traction battery) as
necessary.
■ When accelerating sharply
When the accelerator pedal is depressed heavily, the power of
the hybrid battery (traction battery ) is added to that of the gaso-
line engine via the electric motor (traction motor).
■ When braking (regenerative braking)
The electric motor (traction mo tor) charges the hybrid battery
(traction battery).

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1-1. Hybrid system
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Before driving
PRIUS v_U (OM47784U)
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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.
■ Charging the hybrid battery (traction battery)
● As the gasoline engine charges the hybrid battery (traction battery), the
battery does not need to be charged from an outside source. However, if
the vehicle is left parked for a long time the hybrid battery (traction bat-
tery) will slowly discharge. For this reason, be sure to drive the vehicle at
least once every few months for at least 30 minutes or 10 miles (16 km).
If the hybrid battery (traction battery) becomes fully discharged and you
are unable to jump-start the vehicle with the 12-volt battery, contact your
Toyota dealer.
● If the shift position is in N, the hybrid battery (traction battery) will not be
charged. Always shift the shift position in P when the vehicle is stopped.
When driving in heavy traffic, operate the vehicle with the shift position in
D or B to avoid discharging the hybrid battery (traction battery).
■ Charging the 12-volt battery
 P. 484
■ After the 12-volt battery has di scharged or has been changed or
removed
The gasoline engine may not stop even if the vehicle is running on the hybrid
battery (traction battery). If this continues for a few days, contact your Toyota
dealer.

34 1-1. Hybrid system
PRIUS v_U (OM47784U)
■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) 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 the brake pedal
is depressed and accelerator is loosened.
● Other sounds, such as motors and mechanical noises, may be heard
from the brake system when the brake pedal is depressed.
● Vibration may be felt when the gasoline engine starts or stops.
● Cooling fan sounds may be heard from the air intake vent. (
P. 37)
● The operation sound of the air conditioning system (air conditioning com-
pressor, blower motor).

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1-1. Hybrid system
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Before driving
PRIUS v_U (OM47784U)
Hybrid battery (traction battery) air vent
There is an air intake vent under
the rear seat for the purpose of
cooling the hybrid battery (trac-
tion battery). If the vent becomes
blocked, the hybrid battery (trac-
tion battery) may overheat, lead-
ing 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.

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Before driving
PRIUS v_U (OM47784U)
1-3. Opening, closing and locking the doors
Smart key system
The following operations can be performed simply by carrying the
electronic key on your person, for example in your pocket.
(The driver should always carry the electronic key.)
Unlocks and locks the side doors ( P. 5 8 )
Unlocks and locks the back door ( P. 59)
Starts and stops the hybrid system ( P. 175)

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1-5. Opening and closing the windows
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Before driving
PRIUS v_U (OM47784U)
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Operating the power wi ndows after turning the hybrid system off
The power windows can be operated for approximately 45 seconds even
after the “POWER” switch is tur ned to ACCESSORY mode or turned off.
They cannot, however, be operated once either front door is opened.
■ Jam protection function
If an object becomes caught between the window and the window frame,
window travel is stopped and the window is opened slightly.
■ When the power window does not close normally
If the jam protection function is operating abnormally and a window cannot
be closed, perform the following operations using the power window switch
on the relevant door.
● After stopping the vehicle, the window can be closed by holding the
power window switch in the one-touch closing position while the
“POWER” switch is turned to ON mode.
● If the window still cannot be closed even by carrying out the operation
explained above, initialize the function by performing the following proce-
dure.
Hold the power window switch in the one-touch closing position.
Continue holding the switch for a further 6 seconds after the win-
dow has closed.
Hold the power window switch in the one-touch opening position.
Continue holding the switch for a further 2 seconds after the win-
dow has opened completely.
Hold the power window switch in the one-touch closing position
once again. Continue holding the switch for a further 2 seconds
after the window has closed.
If you release the switch while the window is moving, start again from the
beginning.
If the window continues to close but then re-open slightly even after perform-
ing the above procedure correctly, have the vehicle inspected by your Toyota
dealer.
STEP 1
STEP 2
STEP 3

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Before driving
PRIUS v_U (OM47784U)
1-7. Theft deterrent system
Immobilizer system
■System maintenance
The vehicle has a maintenance-free type immobilizer system.
■ Conditions aff ecting operation
Depending on the surrounding environment and conditions, the immobilizer
system may not operate properly. This may prevent the hybrid system from
starting. ( P. 65)
The vehicle’s keys have built-in tr ansponder chips that prevent the
hybrid system from starting if a key has not been previously regis-
tered in the vehicle’s on-board computer.
Never leave the keys inside the vehicle when you leave the vehicle.
The indicator light flashes after
the “POWER” switch has been
turned off to indicate that the
system is operating.
The indicator light stops flash-
ing after the “POWER” switch
has been turned to ACCES-
SORY or ON mode to indicate
that the system has been can-
celed.