Page 516 of 568

5167-2. Steps to take in an emergency
PRIUS +_OM_OM47D30E_(EE)
● If the 12-volt battery discharges while the shift position is in P, it may not be
possible to shift the shift position to other positions. In this case, the vehicle
cannot be towed without lifting both front wheels because the front wheels
will be locked. ( P. 437)
● When the 12-volt battery is reconnected, start the hybrid system and con-
firm that the shift position can be changed to each position using the shift
position indicator.
■ Charging the 12-volt battery
The electricity stored in the 12-volt battery will discharge gradually even when
the vehicle is not in use, due to natural discharge and the draining effects of
certain electrical appliances. If the vehicle is left for a long time, the 12-volt
battery may discharge, and the hybrid system may be unable to start. (The
12-volt battery recharges automatically while the hybrid system is operating.)
WARNING
■ Avoiding 12-volt battery fires or explosions
Observe the following precautions to prevent accidentally igniting the flam-
mable gas that may be emitted from the 12-volt battery:
● Make sure each jumper cable is connected to the correct terminal and that
it is not unintentionally in contact with any other than the intended terminal.
● Do not allow the other end of the jumper cable connected to the “+” termi-
nal to come into contact with any other parts or metal surfaces in the area,
such as brackets or unpainted metal.
● Do not allow the + and - clamps of the jumper cables to come into contact
with each other.
● Do not smoke, use matches, cigarette lighters or allow open flame near
the 12-volt battery.
■ 12-volt battery precautions
The 12-volt battery contains poisonous and corrosive acidic electrolyte,
while related parts contain lead and lead compounds. Observe the following
precautions when handling the 12-volt battery:
● When working with the 12-volt battery, always wear safety glasses and
take care not to allow any battery fluids (acid) to come into contact with
skin, clothing or the vehicle body.
● Do not lean over the 12-volt battery.
● In the event that battery fluid comes into contact with the skin or eyes,
immediately wash the affected area with water and seek medical attention.
Place a wet sponge or cloth over the affected area until medical attention
can be received.
● Always wash your hands after handling the 12-volt battery support, termi-
nals, and other battery-related parts.
● Do not allow children near the 12-volt battery.
Page 518 of 568

5187-2. Steps to take in an emergency
PRIUS +_OM_OM47D30E_(EE)
If your vehicle overheats
■If the high coolant temperature warning light comes on or
flashes
Stop the vehicle in a safe place and turn off the air conditioning
system, and then stop the hybrid system.
If you see steam:
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
After the hybrid system has cooled down sufficiently, inspect the
hoses and radiator core (radiator) for any leaks.
Radiator
Cooling fans
If a large amount of coolant
leaks, immediately contact
any authorized Toyota retailer
or Toyota authorized repairer,
or any reliable repairer.
The following may indicate that your vehicle is overheating.
● The high coolant temperature warning light (P. 449) comes on
or flashes, or a loss of hybrid system power is experienced. (For
example, the vehicle speed does not increase.)
● Vehicles without multi-information display: The hybrid system
overheat warning light ( P. 449) comes on.
● Vehicles with multi-information display: The warning message
indicating overheat is shown on the multi-information display.
( P. 464)
● Steam comes out from under the hood.
Correction procedures
1
2
3
1
2
Page 520 of 568
5207-2. Steps to take in an emergency
PRIUS +_OM_OM47D30E_(EE)
■If the hybrid system overheat warning light comes on or the
warning message indicating overheat is shown on the multi-
information display
Stop the vehicle in a safe place.
Stop the hybrid system and carefully lift the hood.
After the hybrid system has cooled down, inspect the hoses and
radiator core (radiator) for any leaks.
Radiator
Cooling fans
If a large amount of coolant
leaks, immediately contact
any authorized Toyota retailer
or Toyota authorized repairer,
or any reliable repairer.
The coolant level is satisfactory if it is between the “F” and “L”
lines on the reservoir.
Reservoir
“F” line
“L” line
Add coolant if necessary.
Water can be used in an emer-
gency if coolant is unavailable.
If water was added in an emer-
gency, have the vehicle
inspected at any authorized
Toyota retailer or Toyota autho-
rized repairer, or any reliable
repairer as soon as possible.
1
2
3
1
2
4
1
2
3
5
Page 521 of 568

5217-2. Steps to take in an emergency
PRIUS +_OM_OM47D30E_(EE)
7
When trouble arises
After stopping the hybrid system and waiting for 5 minutes or
more, start the hybrid system and check for the instrument clus-
ter or multi-information display.
If the hybrid system overheat warning light does not turn off or
the message does not disappear:
Stop the hybrid system and contact any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer.
If the hybrid system overheat warning light does not come on or
the message is not displayed:
The hybrid system temperature has dropped and the vehicle may
be driven normally.
However, if the warning light comes on again frequently or the message
appears again frequently, contact any authorized Toyota retailer or
Toyota authorized repairer, or any reliable repairer.
WARNING
■ When inspecting under the hood of your vehicle
Observe the following precautions.
Failure to do so may result in serious injury such as burns.
● If steam is seen coming from under the hood, do not open the hood until
the steam has subsided. The engine compartment may be very hot.
● After the hybrid system has been turned off, check that the indicator on the
power switch and the “READY” indicator are off.
When the hybrid system is operating, the gasoline engine may automati-
cally start, or the cooling fan may suddenly operate even if the gasoline
engine stops. Do not touch or approach rotating parts such as the fan,
which may lead to fingers or clothing (especially a tie, a scarf or a muffler)
getting caught, resulting in serious injury.
● Do not loosen the coolant reservoir cap while the hybrid system and radia-
tor are hot.
High temperature steam or coolant could spray out.
6
Page 533 of 568
5338-1. Specifications
PRIUS +_OM_OM47D30E_(EE)
8
Vehicle specifications
*: The fluid capacity is the quantity of reference.
If replacement is necessary, contact any authorized Toyota retailer or
Toyota authorized repairer, or any reliable repairer.
Electrical system
12-volt battery
Open voltage at 20 C (68F):
12.0 V or higher
If the voltage is lower than the standard
value, charge the battery.
(After charging the battery, turn on the high
beam headlights for 30 seconds with the
power switch off, and turn the headlights
off.)
Charging rates4.2 A max.
Transmission
Fluid capacity*3.4 L (3.6 qt., 3.0 Imp.qt.)
Fluid typeToyota Genuine ATF WS
NOTICE
■ Transmission fluid type
Using transmission fluid other than “Toyota Genuine ATF WS” may ulti-
mately damage the transmission of your vehicle.
Page 536 of 568
5368-1. Specifications
PRIUS +_OM_OM47D30E_(EE)
Light bulbs
Light bulbsWTyp e
Exterior
Front fog lights19A
Front turn signal lights21B
Rear turn signal lights21B
Back-up lights21C
Rear fog light21C
License plate lights5C
Interior
Vanity lights8C
Personal/interior lights
Vehicles without panoramic roof
Vehicles with panoramic roof
5
8C
C
Rear interior light8D
Door courtesy lights5C
Luggage compartment light5C
A: H16 halogen bulbs
B: Wedge base bulbs (amber)C: Wedge base bulbs (clear)
D: Double end bulbs
Page 537 of 568

5378-1. Specifications
PRIUS +_OM_OM47D30E_(EE)
8
Vehicle specifications
Fuel information
■Use of ethanol blended gasoline in a gasoline engine
Toyota allows the use of ethanol blended gasoline where the ethanol content
is up to 10%. Make sure that the ethanol blended gasoline to be used has a
Research Octane Number that follows the above.
■If your engine knocks
●Consult any authorized Toyota retailer or Toyota authorized repairer, or any
reliable repairer.
●You may occasionally notice light knocking for a short time while accelerat-
ing or driving uphill. This is normal and there is no need for concern.
When you find these types of fuel label at the gas station, use
only the fuel with one of the following labels.
EU area:
You must only use unleaded gasoline conforming to European
standard EN228.
Select unleaded gasoline with a Research Octane Number of 95
or higher for optimum engine performance.
Except EU area:
You must only use unleaded gasoline.
Select unleaded gasoline with a Research Octane Number of 95
or higher for optimum engine performance.
Page 541 of 568
5418-2. Customization
PRIUS +_OM_OM47D30E_(EE)
8
Vehicle specifications
■Wireless remote control (P. 140)
■Automatic light control system (P. 241)
■Illumination (P. 342)
*: If equipped
FunctionDefault
settingCustomized
setting
Wireless remote control On Off – – O
123
FunctionDefault
settingCustomized
setting
Light sensor sensitivityLevel 0Level -2 to 2–OO
123
FunctionDefault
settingCustomized
setting
Time elapsed before the
interior lights turn off15 secondsOff
–OO 7.5 seconds
30 seconds
Operation after the power
switch is turned offOnOff––O
Operation when the doors
are unlocked with the
smart entry & start system
or the wireless remote
control function or the
mechanical key
OnOff––O
Operation when you
approach the vehicle with
the electronic key on your
person
OnOff––O
Footwell lighting
*On Off – – O
Footwell lighting control
*On Off – – O
123