2020 TOYOTA PRIUS PLUG-IN HYBRID charging

7578-2. Steps to take in an emergency
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
8
When trouble arises
Once the hybrid system has started, remove the jumper cables in
the exact reverse order from which they were connected.
To install the engine cover, conduct the removal procedure in
reverse. After installing, check that the fixed pins are inserted
securely.
Once the hybrid system starts, have the vehicle inspected at any
authorized Toyota retailer or Toyota authorized repairer, or any reliable
repairer as soon as possible.
■ When opening the cover of the positive (+) battery terminal
 P. 645
■ Starting the hybrid system when the 12-volt battery is discharged
The hybrid system cannot be started by push-starting.
■ To prevent 12-volt battery discharge
● Turn off the headlights and the audio system while the hybrid system is off.
● Turn off any unnecessary electrical components when the vehicle is running
at a low speed for an extended period, such as in heavy traffic.
■ When the 12-volt battery is removed or discharged
● Information stored in the ECU is cleared. When the 12-volt battery is
depleted, have the vehicle inspected at any authorized Toyota retailer or
Toyota authorized repairer, or any reliable repairer.
● Some systems may require initialization. (P. 792)
■ When removing the 12-volt battery terminals
When the 12-volt battery terminals are removed, the information stored in the
ECU is cleared. Before removing the 12-volt battery terminals, contact any
authorized Toyota retailer or Toyota authorized repairer, or any reliable
repairer.
■ 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.)
8
9

7588-2. Steps to take in an emergency
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
■When recharging or replacing the 12-volt battery
● In some cases, it may not be possible to unlock the doors using the smart
entry & start system when the 12-volt battery is discharged. Use the wire-
less remote control or the mechanical key to lock or unlock the doors.
● The hybrid system may not start on the first attempt after the 12-volt battery
has recharged but will start normally after the second attempt. This is not a
malfunction.
● It may be impossible to unlock the charging port lid or locking and unlocking
the charging connector immediately after the 12-volt battery is reconnected.
In this case, carry the electronic key on your person and operate the
charging port lid or charging connector lock switch again.
● The power switch mode is memorized by the vehicle. When the 12-volt bat-
tery is reconnected, the system will return to the mode it was in before the
12-volt battery was discharged. Before disconnecting the 12-volt battery,
turn the power switch off.
If you are unsure what mode the power switch was in before the 12-volt bat-
tery discharged, be especially careful when reconnecting the 12-volt battery.
● 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. 707)
■ When replacing the 12-volt battery
● Use a 12-volt battery that conforms to European regulations.
● Use a 12-volt battery that the case size is same as the previous one (LN1),
20 hour rate capacity (20HR) is equi valent (45Ah) or greater, and perfor-
mance rating (CCA) is equivalent (295A) or greater.
• If the sizes differ, the 12-volt battery cannot be properly secured.
• If the 20 hour rate capacity is low, even if the time period where the vehi-
cle is not used is a short time, the 12-volt battery may discharge and the
hybrid system may not be able to start.
● For details, consult any authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer.

7779-1. Specifications
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
9
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)
Specific gravity
reading at 20 C (68F):
1.25 or higher
If the specific gravity is lower than the
standard value, charge the 12-volt bat-
tery.
Charging ratesQuick charge15 A max.
Slow charge5 A max.
Transmission
Fluid capacity*3.7 L (3.9 qt., 3.3 Imp.qt.)
Fluid typeToyota Genuine ATF WS
NOTICE
■ Transmission fluid type
Using transmission fluid other than the above type may cause abnormal
noise or vibration, or ultimately damage the transmission of your vehicle.

7909-2. Customization
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
■Illumination (P. 591)
■Charge settings
■Maintenance system
FunctionDefault
settingCustomized
setting
Time elapsed before the inte-
rior lights turn off15 secondsOff
–OO 7.5 seconds
30 seconds
Operation after the power
switch is turned offOnOff––O
Operation when the doors are
unlockedOnOff––O
Operation when you approach
the vehicle with the electronic
key on your person
OnOff––O
Footwell lighting On Off – – O
Interior lights illumination con-
trolOn Off – – O
123
Charge scheduleSetting the charging schedule: P. 179
Charge currentChanging the upper limit of the charging cur-
rent: P. 150
Traction battery heaterSetting “Traction Battery Heater” on/off:
P. 155
Tire pressure warning
systemInitializing the tire pressure warning system:
P. 651

799Alphabetical index
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
Antenna
Smart entry & start system.... 293
Anti-lock brake system
(ABS) ...................................... 559
Function ................................ 559
Warning light ......................... 715
Approach warning ................... 461
Armrest ..................................... 613
Assist grips .............................. 614
Audio input
*
Audio system*
Automatic air conditioning
system .................................... 572
Air conditioning filter.............. 681
Automatic air conditioning
system ................................ 572
Blower customization ............ 576
Eco score (A/C score) ........... 254
Front seat concentrated
airflow mode (S-FLOW)...... 575
Humidity sensor .................... 584
Remote Air Conditioning
System................................ 585
Automatic headlight leveling
system .................................... 389
Automatic light control
system .................................... 388
AUX port
*
Auxiliary boxes ........................ 598
Back door ................................. 288
Back-up light ............................ 695
Replacing light bulbs ............. 696
Wattage................................. 779Battery (12-volt battery) .......... 644
Battery checking ................... 644
Exchanging ........................... 758
If the 12-volt battery is
discharged .......................... 755
Preparing and checking
before winter....................... 566
Replacing .............................. 758
Warning light ......................... 714
Battery (traction battery)......... 108
Air intake vent ....................... 109
Charging ............................... 121
Location ................................ 108
Specification ......................... 773
Status indicator ..................... 123
Blind Spot Monitor (BSM) ....... 473
Blind Spot Monitor function ... 489
Rear Crossing Traffic Alert
function ............................... 493
Bluetooth
®*
Bottle holders .......................... 597
Brake
Fluid ...................................... 778
Parking brake........................ 386
Regenerative braking............ 103
Warning light ......................... 714
Brake assist ............................. 559
Brake Override System ........... 360
Break-in tips ............................. 361
Brightness control
Instrument cluster light
control................................. 206
BSM (Blind Spot Monitor) ....... 473
Blind Spot Monitor function ... 489
Rear Crossing Traffic Alert
function ............................... 493
B
*: Refer to “Navigation system Owner’s manual”.

800Alphabetical index
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
Care ................................... 616, 622
Aluminum wheels .................. 617
Exterior.................................. 616
Front camera......................... 408
Interior ................................... 622
Radar sensor ........................ 407
Seat belts .............................. 625
Water-repellent coating ......... 617
Catch protection function ....... 353
Chains ....................................... 567
Charging ................................... 121
Charging cable ...................... 126
Charging equipment.............. 121
Charging indicator ................. 125
Charging messages .............. 197
Charging precautions ............ 172
Charging procedure .............. 165
Charging time may
increase .............................. 154
Charging schedule
function ............................... 176
High voltage components ..... 108
Information related to
charging display.................. 159
Opening and closing the
charging port lid .................. 122
Power sources
precautions ......................... 151
Power sources that can be
used.................................... 149
Safety functions ............ 161, 171
Solar charging system .......... 188
When normal charging
cannot be carried out.......... 192
Charging cable ......................... 126
CCID (Charging Circuit
Interrupting Device) ............ 126
Charging cable types ............ 127If the charging cable cannot
be unlocked ........................ 146
Indicator ................................ 130
Maintenance ......................... 136
Replacing the plug-cord ........ 132
Safety functions .................... 129
Charging port ........................... 121
Opening and closing ............. 122
Smart lid & connector
locking system .................... 140
If the charging port lid does
not open ............................. 143
Child restraint system ............... 54
Child restraint system
installation method ............... 67
Fixed with a seat belt .............. 68
Fixed with an ISOFIX lower
anchorage ............................ 70
Points to remember ................ 54
Riding with children................. 53
Using a top tether
anchorage ............................ 72
Child safety ................................ 53
12-volt battery precautions ... 646
Airbag precautions .................. 41
Back door precautions .......... 290
Charging precautions............ 160
Child restraint system ............. 54
How your child should wear
the seat belt.......................... 36
Installing child restraints ......... 67
Power window lock switch .... 352
Power window precautions ... 355
Rear door child-protectors .... 286
Removed key battery
precautions......................... 690
Riding with children................. 53
Seat belt precautions .............. 69
Seat heater precautions........ 589
C

805Alphabetical index
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
Horn .......................................... 346
HV mode ..................................... 95
Hybrid battery (traction
battery) ................................... 108
Air intake vent ....................... 109
Charging ............................... 121
Location ................................ 108
Specification.......................... 773
Status indicator ..................... 123
Hybrid battery (traction
battery) air intake vent .......... 109
Cleaning ................................ 623
Hybrid system ............................ 94
Brake Override System ......... 360
Consumption screen ..... 244, 275
Drive-Start Control ................ 360
Emergency shut off system... 109
Energy monitor.............. 233, 272
High voltage components ..... 108
Hybrid System Indicator ........ 236
If the hybrid system will not
start..................................... 749
Overheating .......................... 761
Plug-in hybrid system
precautions ......................... 108
Plug-in hybrid vehicle driving
tips ...................................... 115
Power switch ......................... 373
Regenerative braking ............ 103
Starting the hybrid system .... 373
Vehicle proximity notification
system ................................ 103
Hybrid System Indicator ......... 236
Hybrid transmission ................ 379Identification ............................ 771
Engine................................... 772
Vehicle .................................. 771
Ignition switch (power
switch) .................................... 373
Auto power off function ......... 375
Changing the power switch
modes................................. 375
If your vehicle has to be
stopped in an emergency ... 705
Starting the hybrid system .... 373
Illuminated entry system ........ 593
Immobilizer system ................... 74
Indicators ................................. 214
Initialization .............................. 792
Items to initialize ................... 792
Parking Support Brake
function ............................... 520
Power windows ..................... 353
S-IPA (Simple Intelligent
Parking Assist System) ...... 548
Tire pressure warning
system ................................ 652
Inside rear view mirror ............ 348
Instrument cluster light
control .................................... 206
Interior lights............................ 591
Switch ........................... 592, 593
Wattage ................................ 779
Intrusion sensor ........................ 90
ISOFIX lower anchorages ......... 70I
*: Refer to “Navigation system Owner’s manual”.

811Alphabetical index
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
Side turn signal lights ............. 385
Replacing light bulbs ............. 700
Turn signal lever ................... 385
Side windows ........................... 352
Water-repellent coating ......... 617
Simple Intelligent Parking
Assist System (S-IPA) ........... 523
Smart entry & start system ..... 293
Antenna location ................... 293
Entry functions ...................... 283
Starting the hybrid system .... 373
Smart lid & connector
locking system ...................... 140
Snow tires................................. 566
Solar charging system ............ 188
Spark plug ................................ 776
Specifications .......................... 770
Speech command system
*
Speed limiter ............................ 470
Speedometer ............................ 222
SRS airbags................................ 39
Steering wheel ......................... 346
Adjustment ............................ 346
Audio switches
*
Meter control switches .......... 205
Talk switch
*
Telephone switches*
TRIP switch ........................... 224
Stop lights
Replacing light bulbs ............. 700
Storage feature ........................ 594
Storage precautions ................ 594
Stuck
If the vehicle becomes
stuck ................................... 766
Sun visors ................................ 605Switch
AHS (Adaptive High-beam
System) switch ................... 392
Audio remote control
switches
*
Camera switch*
Charging schedule switch ..... 179
Cruise control switch............. 451
Door lock switches ................ 285
Driving mode select switch ... 468
Emergency flashers switch ... 704
Engine switch........................ 373
EV City mode switch ............... 98
EV/HV mode selection
switch ................................... 98
Fog light switch ..................... 397
Fuel filler door opener
switch ................................. 403
“HUD” (Head-up display)
switch ................................. 266
Ignition switch ....................... 373
Instrument cluster light
control switch...................... 206
LTA (Lane Tracing Assist)
switch ................................. 437
Light switch ........................... 387
Meter control switches .......... 205
Outside rear view mirror
switches.............................. 350
P position switch ................... 380
Power door lock switches ..... 285
Power switch......................... 373
Power window switch............ 352
*: Refer to “Navigation system Owner’s manual”.