2018 TOYOTA PRIUS PLUG-IN HYBRID engine

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PRIUS PHV_OM_OM47C99E_(EE)
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7-1. Maintenance and care
Cleaning and protecting
the vehicle exterior ..........572
Cleaning and protecting
the vehicle interior ...........577
7-2. Maintenance
Maintenance
requirements....................583
7-3. Do-it-yourself maintenance
Do-it-yourself service
precautions ......................586
Hood ..................................589
Positioning a floor jack .......591
Engine compartment..........592
Tires ...................................606
Tire inflation pressure ........622
Wheels ...............................624
Replacing the tire ...............627
Air conditioning filter ..........639
Wiper rubber
replacement .....................643
Electronic key battery ........646
Checking and replacing
fuses ................................649
Light bulbs .........................653
8-1. Essential information
Emergency flashers .......... 662
If your vehicle has to
be stopped in an
emergency ...................... 663
8-2. Steps to take in an
emergency
If your vehicle needs
to be towed ..................... 664
If you think something is
wrong .............................. 670
If a warning light turns on
or a warning buzzer
sounds ............................ 671
If a warning message is
displayed ......................... 680
If you have a flat tire .......... 688
If the hybrid system will
not start ........................... 706
If the electronic key does
not operate properly ........ 708
If the 12-volt battery is
discharged ...................... 712
If your vehicle
overheats ........................ 718
If the vehicle becomes
stuck................................ 723
7Maintenance and care8When trouble arises

15Pictorial index
PRIUS PHV_OM_OM47C99E_(EE)Windshield wipers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 376
Precautions against winter season . . . . . . . . . . . . . . . . . . . . . P. 525
Precautions against car wash . . . . . . . . . . . . . . . . . . . . . . . . . P. 574
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 379
Refueling method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 379
Fuel type/fuel tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 728
Charging port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 121
Charging method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 147
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 606
Replacing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 627
Tire size/inflation pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 734
Winter tires/tire chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 525
Checking/rotation/tire pressure warning system . . . . . . . . . . . P. 606
Coping with flat tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 688
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 589
Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 589
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 730
Coping with overheat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 718
Headlights/front position lights/
daytime running lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 365
Front fog lights/rear fog lights . . . . . . . . . . . . . . . . . . . . . . . P. 375
Turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 363
Tail lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 365
License plate lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 365
Back-up lights
Shifting the shift position to R . . . . . . . . . . . . . . . . . . . . . . . . . P. 357
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Light bulbs of the exterior lights for driving
(Replacing method: P. 653, Watts: P. 735)
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962-1. Plug-in hybrid system
PRIUS PHV_OM_OM47C99E_(EE)
Plug-in hybrid system features
The illustration is an example for explanation and may differ from the
actual item.
Gasoline engine
Electric motor (traction motor)
The plug-in hybrid system is a system excellent in both econom-
ical efficiency of electric vehicles and practicality of hybrid vehi-
cles.
● EV driving can be performed using electricity charged from an
external power source.*
● If the amount of electricity remaining in the hybrid battery (traction
battery) becomes low, the vehicle is automatically controlled in
such a way that it can be driven as a hybrid vehicle through the
joint use of the gasoline engine.
*: The EV driving range will vary in accordance with conditions such as
vehicle speed, the amount of charge remaining in the hybrid battery
(traction battery) and the usage of the air conditioning system. The gaso-
line engine may also be used simultaneously in accordance with driving
conditions.
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972-1. Plug-in hybrid system
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Plug-in hybrid system
PRIUS PHV_OM_OM47C99E_(EE)
The plug-in hybrid system operates in the following modes.
The multi-information display can be used to check which mode the plug-in
hybrid system is currently being driven in. (P. 223)
EV mode
When a sufficient amount of electricity is remaining after
charging
*1, EV driving is performed using electricity stored in the
hybrid battery (traction battery).
*2
When in EV mode, the EV drive mode indicator illuminates.
*1: The amount of remaining charge can be checked on the multi-informa-
tion display etc. (P. 235)
*2: Depending on the situation, EV driving may be canceled and both gaso-
line engine and electric motor are used. (P. 106)
Plug-in hybrid system operation mode
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982-1. Plug-in hybrid system
PRIUS PHV_OM_OM47C99E_(EE)
EV City mode (P. 100)
When a sufficient amount of electricity for EV driving is remaining in
the hybrid battery (traction battery)
*1, the operation mode can be
switched to EV City mode.
EV City mode limits motor output and minimizes the operation of
the gasoline engine.
*2 Therefore, the vehicle can be driven with
only electric motor (traction motor) in city areas, etc.
When in EV City mode, the EV City mode indicator illuminates.
*1: The amount of remaining charge can be checked on the multi-informa-
tion display etc. (P. 235)
*2: When acceleration is required, fully depress the accelerator pedal to
start the gasoline engine.
HV mode
When in HV mode, the vehicle is driven using both the gasoline
engine and electric motor. (P. 104)
●If electricity needed for EV driving in EV mode is not remaining,
the operation mode will be automatically switched to HV mode.
●The operation mode can be switched to HV mode at any timing
by operating the switch to keep electricity for EV driving etc.
*
(P. 100). Switching to HV mode when driving on a highway or
when driving uphill is recommended in order to conserve battery
power.
When in HV mode, the EV drive mode indicator and EV City mode indi-
cator turn off.
*: The EV driving range may reduce even after switching to HV mode.
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992-1. Plug-in hybrid system
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Plug-in hybrid system
PRIUS PHV_OM_OM47C99E_(EE)
Hybrid battery (traction battery) charge mode (P. 101)
Electricity generated in the gasoline engine can be charged in the
hybrid battery (traction battery) by switching to the hybrid battery
(traction battery) charge mode when electricity needed for EV driv-
ing is not remaining.*
●The system may not be able to switch to the hybrid battery (trac-
tion battery) charge mode due to the state of the plug-in hybrid
system. (P. 102)
●Charging time differs depending on the driving state of the vehi-
cle when driving in hybrid battery (traction battery) charge mode.
When in the hybrid battery (traction battery) charge mode, the hybrid
battery charge mode indicator illuminates.
*: When in the hybrid battery (traction battery) charge mode, the hybrid
battery can be charged while driving. However, the gasoline engine runs
to charge the battery and fuel consumption becomes higher compared
with driving in HV mode.
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1022-1. Plug-in hybrid system
PRIUS PHV_OM_OM47C99E_(EE)
■If the plug-in hybrid system operation mode cannot be changed
In the following situations, the plug-in hybrid system operation mode cannot
be changed even if the EV/HV mode selection switch or EV City mode switch
is pressed. (In this case, the warning message is displayed on the multi-infor-
mation display when the switch is pressed.)
●When electricity needed for EV driving is not remaining (when in EV/EV City
mode)
●When the traction battery is almost completely charged (hybrid battery [trac-
tion battery] charge mode)
■When EV City mode is canceled
When EV City mode is canceled, either automatically or by pressing the EV
City mode switch, while the accelerator pedal is depressed, the drive torque
and vehicle speed may increase even if the accelerator pedal is maintained
at a fixed position. When EV City mode is canceled, a buzzer will sound and
the EV City mode indicator will flash and go off.
■When switching from EV mode to another mode using the switch
When the power switch is turned off, operation mode switching is canceled
and the system returns to EV mode the next time the vehicle is started.
■Hybrid battery (traction battery) charge mode
●The following may occur to protect the system, etc.
• Cannot switch to hybrid battery (traction battery) charge mode or cannot
cancel it
• Gasoline engine does not start or stops even after switching to hybrid bat-
tery (traction battery) charge mode
●If a load to the system is large, such as when the power consumption of the
air conditioning system is large or when the temperature of the engine cool-
ant is high, it may take longer time than usual to charge using the hybrid bat-
tery (traction battery) charge mode, or charging to the hybrid battery
(traction battery) may not be performed.

1032-1. Plug-in hybrid system
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Plug-in hybrid system
PRIUS PHV_OM_OM47C99E_(EE)■
When in EV mode
In EV mode, EV driving (driving using only the electric motor)
* is
possible. However, depending on the situation, EV driving may be
canceled and both gasoline engine and electric motor are used
(P. 106). Also, if a little electricity is remaining in the hybrid battery
(traction battery), HV mode is automatically selected. To drive in EV
mode long, observe the followings.
●Avoid sudden acceleration and sudden deceleration, and be sure
to drive smoothly.
If you repeatedly accelerate, the hybrid battery (traction battery)
charge will deplete quickly. Also, EV driving may be canceled by
rapid acceleration or vehicle speed.
●Restrain your speed as much as possible. The distance that can
be driven in EV mode will reduce considerably at high speeds.
*: The EV driving range can be checked using the multi-information dis-
play etc. (P. 218, 234, 241, 258)
■
When in EV City mode
In EV City mode, EV driving (driving using only the electric motor) is
possible.
*1
●Motor output is limited at the same level unless the accelerator
pedal is fully depressed.
When it is necessary to accelerate the vehicle, depress the
accelerator pedal completely or cancel EV City mode as needed.
●In the following situations, EV City mode is automatically can-
celed.
*2
• When driving in EV driving is not possible. (P. 106)
• When Dynamic radar cruise control with full-speed range is
activated.
• When the accelerator pedal is fully depressed.
*1: The EV driving range can be checked using the multi-information dis-
play etc. (P. 218, 234, 241, 258)
*2: Depending on the circumstances, EV City mode may also be canceled
in situations other than those above.
Control when driving in each mode