2014 TOYOTA PRIUS C Battery 12 v

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1
1-1. Hybrid system
Before driving
Hybrid system precautions
Take care when handling the hybrid system, as it contains a high
voltage system (about 520 V at maximum) as well as parts that
become extremely hot when the hybrid system is operating. Obey
the caution labels attached to the vehicle.
Caution label
Service plug
Air conditioning compressor
Electric motor (traction motor) Power control unit with DC/
DC converter
Hybrid battery (traction bat-
tery)
High voltage cables (orange)

30 1-1. Hybrid system
Hybrid battery air vent There is an air intake vent on the
side of the lower part of the rear
left seat for the purpose of cool-
ing the hybrid battery (traction
battery). If the vent becomes
blocked, the hybrid battery may
overheat, leading to a reduction
in hybrid 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 system activates, your vehicle will
not restart. To restart the hybrid system, contact your Toyota dealer.
Hybrid warning message
A message is automatically displayed when a malfunction occurs in
the hybrid system or an impr oper operation is attempted.
If a warning message is shown
on the multi-information display,
read the message and follow the
instructions. ( P. 447)

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1-1. Hybrid system
1
Before driving
■
If a warning light comes on, a warn ing message is displayed, or the 12-
volt battery has been 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 your Toyota dealer.
■ 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. 439) stop flashing. 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 stop flashing is about 1.3
gal. [5.0 L, 1.1 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.

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1-1. Hybrid system
1
Before driving
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, shift the
shift lever to P, apply the parking brake, and turn the hybrid system off.
( P. 150)
● Do not touch the high voltage parts, cables or connectors. Carefully check
to see if there are exposed high voltage parts or cables.
● If electric wires are exposed inside or outside your vehicle, an electric
shock may occur. Never touch exposed electric wires.
● If a fluid leak occurs, do not touch the fluid as it may be strong alkaline
electrolyte from the hybrid battery (traction battery). If it comes into contact
with your skin or eyes, wash it off immediately with a large amount of water
or, if possible, boric acid solution. Seek immediate medical attention.
● 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.
● If your vehicle needs to be towed, do so with the 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. 429)
● 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 and contact your Toyota dealer.
■ Nickel-metal hydride battery
Your vehicle contains a sealed nickel-metal hydride 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.

34 1-1. Hybrid system
NOTICE
■Hybrid battery air vent
●Do not place foreign objects over or in front of the air vent. The hybrid bat-
tery (traction battery) may overheat and be damaged.
● Clean the air vent regularly to prevent the hybrid battery (traction battery)
from overheating.
● Do not wet 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.

36 1-1. Hybrid system
Display Audio systemMulti-information display
When the vehi-
cle is powered
by the electric
motor (traction
motor)
When the vehi-
cle is powered
by the gasoline
engine
When the vehi-
cle is powered
by both the gas-
oline engine and
the electric
motor (traction
motor)
When the vehi-
cle is charging
the hybrid bat-
tery (traction
battery)
When there is
no energy flow

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1-1. Hybrid system
1
Before drivingThese images are examples only, and may vary slightly from actual condi-
tions.
Hybrid battery
(traction bat-
tery) status
LowFull
Low Full
Display Audio systemMulti-information
display

41
1-1. Hybrid system
1
Before driving
■
Remaining hybrid battery (tract ion battery) charge display
The charge amount of the hybrid battery (traction battery) is automatically
controlled by the hybrid system. For this reason, even if electricity is recov-
ered via the regenerative braking, or electricity is generated via the gasoline
engine, the displayed hybrid battery (traction battery) charge amount may
not reach the highest level (level 8). However, this does not indicate a mal-
function.
■ Resetting the consumption data (Display Audio System)
Selecting “Clear” on the “Trip Information” screen will reset the fuel con-
sumption and the regenerated energy for the past 15 minutes. Selecting
“Yes” on the following screen will confirm resetting of all the data.
■ Menu screen selection (Multi-information display)
Press the “DISP” switch and select “Set-
tings & Screen Off”. Press and hold the
“DISP” switch while the cursor is on
“Menu Screen Selection” to change to the
settings screen.
The following screen changes and set-
tings can be performed:
• The eco savings record screen can be
switched on or off. ( P. 187)
• The 5 minute fuel consumption screen can be switched on or off.
• Past record can be reset.
• The past record screen can be switched between off, monthly aver-
age and personal best.