2012 TOYOTA PRIUS C fuel

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. 441)

31
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. 433) 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.

33
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. 148)
● 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. 425)
● 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.

38 1-1. Hybrid system
Trip Information screen (Display Audio system)Press “CAR”. ( P. 3 5 )
If the “Energy Monitor” screen is displayed, touch “Trip Information”.
Fuel consumption in the past
15 minutes
Displays the average vehicle
speed since the hybrid system
was started.
Displays the driving time since
the hybrid system was started.
Cruising range
Regenerated energy in the
past 15 minutes
One symbol indicates 50 Wh.
Up to 5 symbols are shown.
The image is example only, and may vary slightly from actual conditions.

39
1-1. Hybrid system
1
Before driving
Fuel consumption screen (M
ulti-information display)
There are 2 menu items available for the fuel consumption screen.
After pressing the “DISP” switch, select one of the menu items below
and the system will change to the details screen.
The “5min Consumption”, “Past Re cord” and “ECO Savings Record”
(  P. 194) screens are set to off (initialized settings) at the time of
shipping. ( P. 4 1 )
■ “5min Consumption” screen
Displays the fuel consumption his-
tory since the hybrid system was
started in intervals of 5 minutes.
Current fuel consumption is simul-
taneously displayed, enabling it to
be compared with fuel consump-
tion of up to the last 30 minutes.

40 1-1. Hybrid system
■“Past Record”
There are 2 types of displays for the past record.
Personal best and monthly avera ge can be changed between on the
settings screen. ( P. 4 1 )
Personal Best
Displays the best 3 fuel consum ption records and the current fuel
consumption ranking.
Depending on whether the odometer or trip meter is displayed, the
displayed contents differ.
● When the odometer is displayed: the record since the hybrid
system was started is displayed.
● When the trip meter is displayed: the record since the trip meter
was reset is displayed. The record for trip meter A and trip meter
B is displayed separately.
The top 100 rankings are displayed. Records that are outside the top 100
are not displayed as a ranking.
Monthly Average
Displays average fuel c onsumption by the month.
The current month, the last 3 months and the same month last year are
displayed, enabling a comparison to be made.
The past record can be reset on the settings screen. ( P. 4 1 )

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. 185)
• 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.

42
1-1. Hybrid system
Hybrid vehicle driving tips
For economical and ecological driving, pay attention to the following
points:
■ Using Eco drive mode
P. 174
■Use of Hybrid System Indicator
By keeping Hybrid System Indicator within Eco area, more Eco-friendly
driving may be possible. ( P. 195)
■When braking the vehicle
Make sure to operate the brakes gently and in good time. A greater
amount of electrical energy can be retained when slowing down.
■Delays
Repeated acceleration and deceleration, as well as long waits at traffic
lights, will lead to bad fuel consumption. Check traffic reports before
leaving and avoid delays as much as possible. When encountering a
delay, gently release the brake pedal to allow the vehicle to move for-
ward slightly while avoiding overuse of the accelerator pedal. Doing so
can help control excessive gasoline consumption.
■Highway driving
Control your speed and keep at a constant speed. Also, before stop-
ping at a toll booth or similar, allow plenty of time to release the acceler-
ator and gently apply the brakes. A greater amount of electrical energy
can be retained when slowing down.
■Air conditioning
Use the air conditioning only when necessary. Doing so can help con-
trol excessive gasoline consumption.
In summer: In high temperatures, use the recirculated air mode. Doing
so will help to reduce the burden on the air conditioning and reduce fuel
consumption as well.
In winter: Because the gasoline engine will not automatically cut out
until the gasoline engine and the interior of the vehicle are warm, it will
consume fuel. Also, fuel consumption can be improved by avoiding
overuse of the heater.