2012 TOYOTA PRIUS PLUS battery

44 1-1. Hybrid system
PRIUS +_OM_OM47821E_(EE)
Hybrid battery (traction battery) air vent
There is an air intake vent under
the right-hand front seat for the
purpose of cooling the hybrid
battery (traction battery). If the
vent becomes blocked, the
hybrid battery (traction battery)
may overheat, leading to a
reduction in hybrid battery (trac-
tion battery) output.
Emergency shut off system
When a certain level of impact is detected by the impact sensor, the
emergency shut off system blocks off the high voltage current and
stops the fuel pump to minimize the risk of electrocution and fuel
leakage. If the emergency shut off system activates, your vehicle will
not restart. To restart the hybrid system, contact any authorized
Toyota dealer or repairer, or another duly qualified and equipped pro-
fessional.

45 1-1. Hybrid system
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Before driving
PRIUS +_OM_OM47821E_(EE)
If a warning light comes on, a warning message is displayed or the 12-
volt battery is disconnected
The hybrid system may not start. In that case, try to start the system again. If
the “READY” indicator does not come on, contact any authorized Toyota
dealer or repairer, or another duly qualified and equipped professional.
Running out of fuel
When the vehicle has run out of fuel and the hybrid system cannot be
started, refuel the vehicle with at least enough gasoline to make the low fuel
level warning light (P. 476) go off. If there is only a small amount of fuel,
the hybrid system may not be able to start. (The minimum amount of fuel to
add to make the low fuel level warning light go out is about 7 L [1.8 gal.,
1.5 Imp.gal.], when the vehicle is on a level surface. This value may vary
when the vehicle is on a slope.)
Electromagnetic waves
High voltage parts and cables on the hybrid vehicles incorporate electro-
magnetic shielding, and therefore emit approximately the same amount
of electromagnetic waves as conventional gasoline powered vehicles or
home electronic appliances.
Your vehicle may cause sound interference in some third party-produced
radio parts.
Hybrid battery (traction battery)
The hybrid battery (traction battery) has a limited service life. The lifespan of
the hybrid battery (traction battery) can change in accordance with driving
style and driving conditions.
Declaration of conformity
This model conforms to hydrogen emissions according to regulation
ECE100 (Battery electric vehicle safety).

47 1-1. Hybrid system
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PRIUS +_OM_OM47821E_(EE)
CAUTION
Road accident cautions
If your vehicle is involved in an accident, observe the following precautions
to reduce the risk of death or serious injury:
Stop the vehicle in a safe place to prevent subsequent accidents.
While depressing the brake pedal, apply the parking brake, shift the shift
position to P and turn the hybrid system off. Then, slowly release the brake
pedal.
Do not touch the high voltage parts, cables and connectors.
If electric wires are exposed inside or outside your vehicle, an electric
shock may occur. Never touch exposed electric wires.
Do not touch the battery if liquid is leaking from or adhering to it.
If electrolyte (carbonic-based organic electrolyte) from the hybrid battery
(traction battery) comes into contact with the eyes or skin, it could cause
blindness or skin wounds. In the unlikely event that it comes into contact
with the eyes or skin, wash it off immediately with a large amount of water,
and seek immediate medical attention.
If electrolyte is leaking from the hybrid battery (traction battery), do not
approach the vehicle.
Even in the unlikely event that the hybrid battery (traction battery) is dam-
aged, the internal construction of the battery will prevent a large amount of
electrolyte from leaking out. However, any electrolyte that does leak out
will give off an acidic vapor. This vapor is an irritant to skin and eyes and
could cause acute poisoning if inhaled.
Do not bring burning or high-temperature items close to the electrolyte.
The electrolyte may ignite and cause a fire.
If a fire occurs in the hybrid vehicle, leave the vehicle as soon as possible.
Never use a fire extinguisher that is not meant for electric fires. Using even
a small amount of water may be dangerous.

48 1-1. Hybrid system
PRIUS +_OM_OM47821E_(EE)
CAUTION
If your vehicle needs to be towed, do so with front wheels raised. If the
wheels connected to the electric motor (traction motor) are on the ground
when towing, the motor may continue to generate electricity. This may
cause a fire. (P. 461)
Carefully inspect the ground under the vehicle. If you find that liquid has
leaked onto the ground, the fuel system may have been damaged. Leave
the vehicle as soon as possible.
Hybrid battery (traction battery)
Your vehicle contains a sealed lithium-ion battery. If disposed of improperly,
it is hazardous to the environment and there is a risk of severe burns and
electrical shock that may result in death or serious injury.
NOTICE
Hybrid battery (traction battery) air vent
Do not put foreign objects near the air vent. The hybrid battery (traction
battery) may overheat and be damaged.
Clean the air vent regularly to prevent the hybrid battery (traction battery)
from overheating.
Do not wet or allow foreign substances to enter the air vent as this may
cause a short circuit and damage the hybrid battery (traction battery).
Do not carry large amounts of water such as water cooler bottles in the
vehicle. If water spills onto the hybrid battery (traction battery), the battery
may be damaged. Have the vehicle inspected by any authorized Toyota
dealer or repairer, or another duly qualified and equipped professional.

51 1-1. Hybrid system
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Before driving
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These images are examples only, and may vary slightly from actual conditions.
ConditionDisplay
When the vehicle is charging the
hybrid battery (traction battery)
When there is no energy flow
Hybrid battery (traction battery)
statusLow Full

54 1-1. Hybrid system
PRIUS +_OM_OM47821E_(EE)
These images are examples only, and may vary slightly from actual conditions.
ConditionDisplay
When the vehicle is charging the
hybrid battery (traction battery)
When there is no energy flow
Hybrid battery (traction battery)
statusLow Full

61
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Before driving
PRIUS +_OM_OM47821E_(EE)
1-2. Key information
Keys
Using the mechanical key
To 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. 519)
The following keys are provided with the vehicle.
Electronic keys
• Operating the smart entry &
start system (P. 64)
• Operating the wireless
remote control function
(P. 92)
Mechanical keys
Key number plate

72 1-3. Opening, closing and locking the doors
PRIUS +_OM_OM47821E_(EE)
Security feature
If a door is not opened within approximately 30 seconds after the vehicle is
unlocked, the security feature automatically locks the vehicle again.
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 entry & start system may take some
time to unlock the doors.
• The electronic key has been left in an area of approximately 2 m (6 ft.)
of the outside of the vehicle for 10 minutes or longer.
• The smart entry & start system has not been used for 5 days or longer.
If the smart entry & start 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.
AlarmSituationCorrection procedure
Interior alarm
pings continu-
ouslyThe “POWER” switch was
turned to ACCESSORY
mode while the driver’s
door was open (or the
driver’s door was opened
while the “POWER” switch
was in ACCESSORY
mode)Close the driver’s
door, or turn the
“POWER” switch off
The driver’s door is open
with the shift position in RClose the driver’s
door, shift the shift
position to P, or turn
the “POWER” switch
off