Page 80 of 624

801-2. Hybrid system
PRIUS v_OM_OM47B23U_(U)
■If a warning light comes on, a warn ing message is displayed, or the 12-
volt battery is disconnected
The hybrid system may not start. In this 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 le\
vel
warning light ( P. 496) go off. If there is only a small amount of fuel, the
hybrid system may not be able to start. (The standard amount of fuel is about
1.8 gal. [7 L, 1.5 Imp.gal.], when the vehicle is on a level surface. This value
may vary when the vehicle is on a slope. Add extra fuel when the vehicle is
inclined.)
■ Electromagnetic waves
●High voltage parts and cables on hybrid vehicles incorporate electromag-
netic shielding, and therefore emit approximately the same amount of elec-
tromagnetic 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.
WARNING
■High voltage precautions
This vehicle has high voltage DC and AC systems as well as a 12-volt sys-
tem. DC and AC high voltage is very dangerous and can cause severe
burns and electric shock that may result in death or serious injury.
●Never touch, disassemble, remove or replace the high voltage parts,
cables or their connectors.
● The hybrid system will become hot after starting as the system uses high
voltage. Be careful of both the high voltage and the high temperature, and
always obey the warning labels attached to the vehicle.
●Never try to open the service plug
access hole located in the luggage
compartment. The service plug is used
only when the vehicle is serviced and is
subject to high voltage.
Page 81 of 624

811-2. Hybrid system
PRIUS v_OM_OM47B23U_(U)
1
For safety and security
WARNING
■Road accident cautions
Observe the following precautions to reduce the risk of death or serious
injury:
●Pull your vehicle off the road, apply the parking brake, shift the shift posi-
tion to P, and turn the hybrid system off.
● 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.
● 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 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. 486)
● 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.
Page 82 of 624

821-2. Hybrid system
PRIUS v_OM_OM47B23U_(U)
WARNING
■Hybrid battery (traction battery)
●Never resell, hand over or modify the hybrid battery. To prevent accidents,
hybrid batteries that have been removed from a disposed vehicle are col-
lected through Toyota dealer. Do not dispose of the battery yourself.
Unless the battery is properly collected, the following may occur, resulting
in death or serious injury:
• The hybrid battery may be illegally disposed of or dumped, and it is haz-
ardous to the environment or someone may touch a high voltage part,
resulting in an electric shock.
• The hybrid battery is intended to be used exclusively with your hybrid
vehicle. If the hybrid battery is used outside of your vehicle or modified
in any way, accidents such as electric shock, heat generation, smoke
generation, an explosion and electrolyte leakage may occur.
When reselling or handing over your vehicle, the possibility of an accident
is extremely high because the person receiving the vehicle may not be
aware of these dangers.
● If your vehicle is disposed of without the hybrid battery having been
removed, there is a danger of serious electric shock if high voltage parts,
cables and their connectors are touched. In the event that your vehicle
must be disposed of, the hybrid battery must be disposed of by your
Toyota dealer or a qualified service shop. If the hybrid battery is not dis-
posed of properly, it may cause electric shock that can result in death or
serious injury.
NOTICE
■Hybrid battery (traction battery) air intake vent
● Do not place objects that will block the air intake vent. The hybrid battery
(traction battery) may overheat and be damaged.
● Clean the air intake vent regularly to prevent the hybrid battery (traction
battery) from overheating.
● Do not get water or foreign materials in the air intake 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 your Toyota dealer.
Page 92 of 624

92
PRIUS v_OM_OM47B23U_(U)
2. Instrument cluster
Hybrid System Indicator
Displays hybrid system output or regeneration level
Speedometer
Displays the vehicle speed
Shift position indicators
Displays the selected shift position. (P. 183)
Fuel gauge
Displays the quantity of fuel remaining in the tank
Hybrid battery (traction battery) status
The amount of charge remaining in the hybrid battery (traction battery) is
shown by 8 bars.
Clock
Displays the time. (Adjustment procedure: P. 388)
Odometer and trip meter display
Odometer:
Displays the total distance that the vehicle has been driven
Trip meter:
Displays the distance the vehicle has been driven since the meter was last
reset. Trip meters “A” and “B” can be used to record and display different
distances independently.
Trip information display
Displays fuel consumption, etc.
Multi-information display
Presents the driver with a variety of driving-related data ( P. 100)
Displays warning messages in case of a malfunction ( P. 506)
1
2
3
4
5
6
7
8
9
Page 98 of 624

98
PRIUS v_OM_OM47B23U_(U)
2. Instrument cluster
■The meters and display illuminate when
The power switch is in ON mode.
■ Hybrid System Indicator
●By keeping the indicator within Eco area, more Eco-friendly driving can be
achieved.
● Charge area indicates regeneration
* status. Regenerated energy will be
used to charge the hybrid battery (traction battery).
*: When used in this manual, “regeneration” refers to the conversion of
energy created by the movement of the vehicle into electrical energy.
■ Eco Driving Indicator Light (vehicl es without multi-information display)
● When all of the following conditions are satisfied and the Eco-friendly driv-
ing, the light will illuminate:
• Driving with the shift position in D
• Either normal mode or Eco drive mode is selected, and EV drive mode is
not in use ( P. 181, 247)
• The vehicle speed is approximately 80 mph (130 km/h) or below.
● Eco Driving Indicator Light can be set to activated or deactivated. ( P. 97)
Charge area
Shows that energy is being recovered
via the regenerative brake.
Eco area
Shows that the vehicle is being driven in
an Eco-friendly manner.
Hybrid Eco area
Shows that gasoline engine power is
not being used very often.
The gasoline engine will automatically
stop and restart under various condi-
tions.
Power area
Shows that an Eco-friendly driving
range is being exceeded (during full
power driving etc.)
1
2
3
4
Page 99 of 624

PRIUS v_OM_OM47B23U_(U)
992. Instrument cluster
2
Instrument cluster
■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 el ectricity 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 malfunc-
tion.
■ Engine speed
On hybrid vehicles, engine speed is precisely controlled in order to help
improve fuel efficiency and reduce exhaust emissions etc.
■ Brightness of the instrument panel light
If the headlight switch is turned to ON while the surrounding area is dark, the
instrument panel lights will dim.
■ When disconnecting and reconnect ing 12-volt battery terminals
The fuel consumption display and average vehicle speed will be reset.
NOTICE
■ To prevent damage to the engine and its components
The engine may be overheating if the high coolant temperature warning
light comes on or flashes. In this case, immediately stop the vehicle in a
safe place, and check the engine after it has cooled completely. (P. 546)
■ The trip information display at low temperatures
Allow the interior of the vehicle to warm up before using the liquid crystal
information display. At extremely low temperatures, the information display
monitor may respond slowly, and display changes may be delayed.
Page 104 of 624
104
PRIUS v_OM_OM47B23U_(U)
2. Instrument cluster
These images are examples only, and may vary slightly from actual
conditions.
When the vehicle is charging
the hybrid battery (traction bat-
tery)
When there is no energy flow
Hybrid battery (traction battery)
status
Energy monitor
LowFull
Page 107 of 624

PRIUS v_OM_OM47B23U_(U)
1072. Instrument cluster
2
Instrument cluster
■System check display
After turning the power switch to ON mode, opening image is displayed while
system operation is checked. When the system check is complete, the nor-
mal screen will return.
■ Pop-up display
When a system that supports pop-up displays, such as the air conditioning
system, is operated, a pop-up display will be temporarily displayed.
■ When disconnecting and reconnect ing 12-volt battery terminals
The fuel consumption display and average vehicle speed will be reset.
■ Liquid crystal display
Small spots or light spots may appear on the display. This phenomenon is
characteristic of liquid crystal displays, and there is no problem continuing to
use the display.
■ Meter display setting initialization
Press or on the meter control switch to select , and then
press .
Press or to select meter setting initialization, press , and then
select “YES”.
■ Customization
The meter settings can be changed. (Customizable features: P. 577)
NOTICE
■The multi-information disp lay at low temperatures
Allow the interior of the vehicle to warm up before using the liquid crystal
information display. At extremely low temperatures, the information display
monitor may respond slowly, and display changes may be delayed.
1
2