Page 444 of 496

4447-2. Steps to take in an emergency
PRIUS +_OM_OM47888E_(EE)
If your vehicle overheats
■If the high coolant temperature warning light comes on or
flashesStop 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 dealer
or repairer, or another duly
qualified and equipped pro-
fessional.
The following may indicate that your vehicle is overheating.● The high coolant temperature warning light ( →P. 380) 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. 380) comes on.
● Vehicles with multi-information display: The warning message
indicating overheat is shown on the multi-information display.
(→ P. 391)
● Steam comes out from under the hood.
Correction procedures
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Page 446 of 496
4467-2. Steps to take in an emergency
PRIUS +_OM_OM47888E_(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 dealer
or repairer, or another duly
qualified and equipped pro-
fessional.
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 dealer or repairer, or
another duly qualified and
equipped professional as soon
as possible.
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Page 447 of 496

4477-2. Steps to take in an emergency
PRIUS +_OM_OM47888E_(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 dealer
or repairer, or another duly qualified and equipped professional.
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 dealer or
repairer, or another duly qualified and equipped professional.
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.
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Page 449 of 496

4497-2. Steps to take in an emergency
PRIUS +_OM_OM47888E_(EE)
7
When trouble arises
If the vehicle becomes stuck
Set the parking brake and shift the shift position to P. Stop the
hybrid system.
Remove the mud, snow or sand from around the stuck tire.
Place wood, stones or some other material under the tires to help
provide traction.
Restart the hybrid system.
Shift the shift position to D or R, release the parking brake and
carefully apply the accelerator to free the vehicle.
Carry out the following procedures if the tires spin or the vehicle
becomes stuck in mud, dirt or snow:
WARNING
■ When attempting to free a stuck vehicle
If you choose to push the vehicle back and forth to free it, make sure the
surrounding area is clear to avoid striking other vehicles, objects or people.
The vehicle may also lunge forward or lunge back suddenly as it becomes
free. Use extreme caution.
■ When changing the shift position
Be careful not to change the shift position with the accelerator pedal
depressed.
Changing the shift position to any positions other than P or N may cause the
vehicle to accelerate abruptly, causing an accident and resulting in death or
serious injury.
NOTICE
■To avoid damage to the hybrid transmission and other components
●Avoid spinning the wheels and depressing the accelerator pedal more
than necessary.
● If the vehicle remains stuck even after these procedures are performed,
the vehicle may require towing to be freed.
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Page 470 of 496
4708-2. Customization
PRIUS +_OM_OM47888E_(EE)
■In the following situations, customize mode in which the settings can be
changed through the multi-information display will automatically be
turned off.
●A warning message appears after the customize mode screen is displayed.
● The power switch is turned off.
● The vehicle begins to move while the customize mode screen is displayed.
WARNING
■ Cautions during customization
As the hybrid system needs to be operating during customization, ensure
that the vehicle is parked in a place with adequate ventilation. In a closed
area such as a garage, exhaust gases including harmful carbon monoxide
(CO) may collect and enter the vehicle. This may lead to death or a serious
health hazard.
NOTICE
■During customization
To prevent 12-volt battery discharge, ens ure that the hybrid system is oper-
ating while customizing features.
Page 471 of 496
4718-3. Initialization
PRIUS +_OM_OM47888E_(EE)
8
Vehicle specifications
Item to initialize
The following item must be initialized for normal system opera-
tion after such cases as the 12-volt battery being reconnected,
or maintenance being performed on the vehicle:
ItemWhen to initializeReference
Tire pressure warning
system
• When rotating the tires onvehicles with differing front
and rear tire inflation pres-
sures
• When changing the tire infla- tion pressure by changing
traveling speed or load
weight, etc.
• When changing the tire size
P. 332
Page 476 of 496
476What to do if... (Troubleshooting)
PRIUS +_OM_OM47888E_(EE)
●The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts? (→P. 381)
●The parking brake indicator is on
Is the parking brake released? ( →P. 214)
Depending on the situation, other types of warning buzzer may also sound.
( → P. 376, 388)
●Did anyone inside the vehicle open a door during setting the alarm?
The sensor detects it and the alarm sounds. ( →P. 97)
To stop the alarm, turn the power switch to ON mode or start the hybrid sys-
tem.
●Is the electronic key left inside the vehicle?
Vehicles without multi-information display: →P. 152
Vehicles with multi-information display: →P. 402
●When a warning light turns on or a warning message is displayed, refer to
P. 376, 388.
A warning buzzer sounds during driving
An alarm is activated and the horn sounds
A warning buzzer sounds when leaving the vehicle
A warning light turns on or a warning message is displayed
Page 478 of 496

478Alphabetical index
PRIUS +_OM_OM47888E_(EE)
Alphabetical index
A/C............................................. 270Air conditioning filter.............. 347
Automatic air conditioning
system ................................ 270
Climate remote control switches.............................. 278
Pollen removal mode ............ 273
ABS
(Anti-lock Brake System) ...... 248Function ................................ 248
Warning light ......................... 377
Air conditioning filter .............. 347
Air conditioning system .......... 270 Air conditioning filter.............. 347
Automatic air conditioning system ................................ 270
Climate remote control switches.............................. 278
Pollen removal mode ............ 273
Air intake vent ............................ 86
Airbag manual on-off system ...................................... 56 Airbags ....................................... 46
Airbag manual on-off system .. 56
Airbag operating conditions .... 52
Airbag precautions for your child ...................................... 48
Airbag warning light .............. 377
Correct driving posture ........... 36
Curtain shield airbag operating conditions ............. 52
Curtain shield airbag precautions........................... 50
General airbag precautions .... 48
Locations of airbags................ 46
Modification and disposal of
airbags.................................. 51
Side airbag operating conditions ............................. 52
Side airbag precautions .......... 49
Side and curtain shield
airbags operating
conditions ............................. 52
Side and curtain shield airbags precautions .............. 50
SRS airbags............................ 46
A