2023 TOYOTA PRIUS PLUG-IN HYBRID battery

7369-3. Initialization
Prius Plug-in Hybrid_OM_OM47F38E_(EE)
Items to initialize
The following items 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
Power windowWhen functioning abnormallyP. 304
Parking Support Brake func-
tion (if equipped)After reconnecting or chang-
ing the 12-volt batteryP. 470
S-IPA (Simple Intelligent
Parking Assist System) (if
equipped)After reconnecting or chang-
ing the 12-volt batteryP. 498
Tire pressure warning sys-
tem
• When rotating the tires on
vehicles with differing front
and rear tire inflation pres-
sures
• When changing the tire infla-
tion pressure by changing
traveling speed or load
weight, etc.
P. 601

738What to do if... (Troubleshooting)
Prius Plug-in Hybrid_OM_OM47F38E_(EE)
What to do if... (Troubleshooting)
●If you lose your mechanical keys, new genuine mechanical keys can be
made by any authorized Toyota retailer or Toyota authorized repairer, or
any reliable repairer. (P. 269)
●If you lose your electronic keys, the risk of vehicle theft increases signifi-
cantly. Contact any authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer immediately. (P. 272)
●Is the electronic key battery weak or depleted? (P. 632)
●Is the power switch in ON mode?
When locking the doors, turn the power switch off. (P. 325)
●Is the electronic key left inside the vehicle?
When locking the doors, make sure that you have the electronic key on
your person.
●The function may not operate properly due to the condition of the radio
wave. (P. 286)
●Is the child-protector lock set?
The rear door cannot be opened from inside the vehicle when the lock is
set. Open the rear door from outside and then unlock the child-protector
lock. (P. 276)
If you have a problem, check the following before contacting any
authorized Toyota retailer or Toyota authorized repairer, or any
reliable repairer.
The doors cannot be locked, unlocked, opened or closed
You lose your keys
The doors cannot be locked or unlocked
The rear door cannot be opened

739What to do if... (Troubleshooting)
Prius Plug-in Hybrid_OM_OM47F38E_(EE)
●Did you press the power switch while firmly depressing the brake pedal?
( P. 323)
●Is the shift position in P? (P. 330)
●Is the electronic key anywhere detectable inside the vehicle? (P. 284)
●Is the electronic key battery weak or depleted?
In this case, the hybrid system can be started in a temporary way.
( P. 696)
●Is the 12-volt battery discharged? (P. 699)
●Is the window lock switch pressed?
The power windows except for the one at the driver’s seat cannot be oper-
ated if the window lock switch is pressed. ( P. 303)
●The auto power off function will be operated if the vehicle is left in
ACCESSORY or ON mode (the hybrid system is not operating) for a
period of time. ( P. 3 2 5 )
If you think something is wrong
The hybrid system does not start
The windows do not open or close by operating the power
window switches
The power switch is turned off automatically

743Alphabetical index
Prius Plug-in Hybrid_OM_OM47F38E_(EE)
Antenna
Smart entry & start system.... 283
Anti-lock brake system
(ABS) ...................................... 509
Function ................................ 509
Warning light ......................... 660
Approach warning ................... 411
Armrest ..................................... 563
Assist grips .............................. 564
Audio input
*
Audio system*
Automatic air conditioning
system .................................... 522
Air conditioning filter.............. 625
Automatic air conditioning
system ................................ 522
Blower customization ............ 526
Eco score (A/C score) ........... 244
Front seat concentrated
airflow mode (S-FLOW)...... 525
Humidity sensor .................... 534
Remote Air Conditioning
System................................ 535
Automatic headlight leveling
system .................................... 339
Automatic light control
system .................................... 338
Auxiliary boxes ........................ 548
Back door ................................. 278
Back-up light ............................ 639
Replacing light bulbs ............. 640
Wattage................................. 723Battery (12-volt battery) .......... 594
Battery checking ................... 594
Exchanging ........................... 702
If the 12-volt battery is
discharged .......................... 699
Preparing and checking
before winter....................... 516
Replacing .............................. 702
Warning light ......................... 659
Battery (traction battery)........... 98
Air intake vent ......................... 99
Charging ............................... 111
Location .................................. 98
Specification ......................... 717
Status indicator ..................... 113
Blind Spot Monitor (BSM) ....... 423
Blind Spot Monitor function ... 439
Rear Crossing Traffic Alert
function ............................... 443
Bluetooth
®*
Bottle holders .......................... 547
Brake
Fluid ...................................... 722
Parking brake........................ 336
Regenerative braking.............. 93
Warning light ......................... 659
Brake assist ............................. 509
Brake Override System ........... 310
Break-in tips ............................. 311
Brightness control
Instrument cluster light
control................................. 196
BSM (Blind Spot Monitor) ....... 423
Blind Spot Monitor function ... 439
Rear Crossing Traffic Alert
function ............................... 443
B
*: Refer to “Navigation system Owner’s manual”.

744Alphabetical index
Prius Plug-in Hybrid_OM_OM47F38E_(EE)
Care ................................... 566, 572
Aluminum wheels .................. 567
Exterior.................................. 566
Front camera......................... 358
Interior ................................... 572
Radar sensor ........................ 357
Seat belts .............................. 575
Water-repellent coating ......... 567
Catch protection function ....... 304
Chains ....................................... 517
Charging ................................... 111
Charging cable ...................... 116
Charging equipment.............. 111
Charging indicator ................. 115
Charging messages .............. 187
Charging precautions ............ 162
Charging procedure .............. 155
Charging time may
increase .............................. 144
Charging schedule
function ............................... 166
High voltage components ....... 98
Information related to
charging display.................. 149
Opening and closing the
charging port lid .................. 112
Power sources
precautions ......................... 141
Power sources that can be
used.................................... 139
Safety functions ............ 151, 161
Solar charging system .......... 178
When normal charging
cannot be carried out.......... 182
Charging cable ......................... 116
CCID (Charging Circuit
Interrupting Device) ............ 116
Charging cable types ............ 117If the charging cable cannot
be unlocked ........................ 136
Indicator ................................ 120
Maintenance ......................... 126
Replacing the plug-cord ........ 122
Safety functions .................... 119
Charging port ........................... 111
Opening and closing ............. 112
Smart lid & connector
locking system .................... 130
If the charging port lid does
not open ............................. 133
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 ... 596
Airbag precautions .................. 41
Back door precautions .......... 280
Charging precautions............ 150
Child restraint system ............. 54
How your child should wear
the seat belt.......................... 36
Installing child restraints ......... 67
Power window lock switch .... 303
Power window precautions ... 306
Rear door child-protectors .... 276
Removed key battery
precautions......................... 634
Riding with children................. 53
Seat belt precautions .............. 69
Seat heater precautions........ 539
C

745Alphabetical index
Prius Plug-in Hybrid_OM_OM47F38E_(EE)
Child-protectors ....................... 276
Cleaning............................ 566, 572
Aluminum wheels .................. 567
Exterior.................................. 566
Front camera......................... 358
Hybrid battery (traction
battery) air intake vent ........ 573
Interior ................................... 572
Radar sensor ........................ 357
Seat belts .............................. 575
Water-repellent coating ......... 567
Clock ......................................... 194
Adjustment ............................ 200
Coat hooks ............................... 563
Combination meter .................. 194
Clock adjustment .................. 200
Main display .......................... 212
Multi-information display ....... 220
Warning lights and
indicators ............................ 204
Condenser ................................ 593
Console box ............................. 545
Consumption screen ............... 264
Coolant ..................................... 591
Capacity ................................ 720
Checking ............................... 591
Preparing and checking
before winter....................... 516
Cooling system ........................ 591
Engine overheating ............... 705
Hybrid system overheating ... 707
Cruise control
Dynamic radar cruise control
with full-speed range .......... 401
Cup holders .............................. 546
Curtain shield airbags ............... 39
Customizable features ............ 726Daytime running light
system .................................... 338
Deck board ............................... 550
Defogger
Outside rear view mirrors...... 527
Rear window ......................... 527
Windshield ............................ 527
Dimension ................................ 714
Display
Drive information................... 222
Dynamic radar cruise control
with full-speed range .......... 401
Energy monitor ............. 223, 261
Head-up display .................... 254
LTA (Lane Tracing Assist) .... 388
Main display .......................... 212
Multi-information display ....... 220
Parking Support Brake
function ............................... 468
Pre-collision warning............. 369
RCTA detection screen......... 423
RSA (Road Sign Assist)........ 396
S-IPA (Simple Intelligent
Parking Assist System) ...... 477
Toyota parking assist
sensor................................. 451
Warning messages ............... 667
Do-it-yourself maintenance .... 581
Door courtesy lights................ 541
Location ................................ 541
Wattage ................................ 723D

746Alphabetical index
Prius Plug-in Hybrid_OM_OM47F38E_(EE)
Doors ................................ 273, 278
Back door .............................. 278
Door glasses ......................... 303
Door lock ............................... 273
Open door warning buzzer.... 276
Open door warning light ........ 662
Outside rear view mirrors ...... 301
Rear door child-protectors .... 276
Side doors ............................. 273
Side windows ........................ 303
Double locking system.............. 75
Drive information ..................... 222
Drive-Start Control (DSC)........ 309
Sudden start restraint
control................................. 309
Driver’s seat belt reminder
light ......................................... 662
Driving ...................................... 308
Break-in tips .......................... 311
Correct driving posture............ 32
Driving in the rain .................. 310
Driving mode select switch ... 418
Plug-in hybrid vehicle driving
tips ...................................... 105
Procedures............................ 308
Winter drive tips .................... 516
DSC (Drive-Start Control)........ 309
Sudden start restraint
control................................. 309
Dynamic radar cruise control
with full-speed range ............ 401
ECB (Electronically
Controlled Brake System) .... 509
Eco drive mode ........................ 418
Electric motor (traction
motor) ....................................... 84
Location .................................. 84
Specification.......................... 717Electric Power Steering
(EPS)....................................... 510
Function ................................ 510
Warning light ......................... 660
Electronic key .......................... 268
Battery-saving function ......... 285
If the electronic key does not
operate properly ................. 695
Replacing the battery ............ 632
Electronically Controlled
Brake System (ECB) ............. 509
Emergency, in case of
If a warning buzzer sounds ... 659
If a warning light turns on...... 659
If a warning message is
displayed ............................ 667
If the 12-volt battery is
discharged .......................... 699
If the electronic key does not
operate properly ................. 695
If the hybrid system will not
start .................................... 693
If the vehicle becomes
stuck ................................... 710
If the vehicle is submerged
or water on the road
is rising ............................... 650
If you have a flat tire ............. 675
If you lose your keys ..... 269, 272
If you think something is
wrong.................................. 658
If your vehicle has to be
stopped in an emergency ... 649
If your vehicle needs to be
towed .................................. 652
If your vehicle overheats ....... 705
E

748Alphabetical index
Prius Plug-in Hybrid_OM_OM47F38E_(EE)
Flat tire ...................................... 675
Floor mats .................................. 30
Fluid
Brake..................................... 722
Transmission......................... 721
Washer.................................. 598
Fog lights.................................. 347
Replacing light bulbs ............. 644
Switch ................................... 347
Footwell lights.......................... 541
Front doors............................... 273
Front fog lights ........................ 347
Replacing light bulbs ............. 644
Switch ................................... 347
Front passenger’s seat belt
reminder light ........................ 662
Front position lights ................ 337
Light switch ........................... 337
Replacing light bulbs ............. 644
Front seat concentrated
airflow mode (S-FLOW)......... 525
Front seats ............................... 290
Adjustment ............................ 290
Cleaning ................................ 572
Correct driving posture............ 32
Head restraints...................... 294
Seat heaters.......................... 539
Front turn signal lights............ 335
Replacing light bulbs ............. 644
Turn signal lever ................... 335
Fuel ........................................... 351
Capacity ................................ 716
Fuel gauge ............................ 212
Information ............................ 724
Refueling ............................... 351
Type ...................................... 716
Warning light ......................... 662
Fuel consumption ............ 234, 264
Average fuel consumption .... 234
Current fuel consumption ...... 264Fuel filler door.......................... 353
Opener .................................. 353
Refueling............................... 351
When the fuel filler door
cannot be opened............... 353
Fuses ........................................ 635
Glove box ................................. 545
Hands-free system (for
cellular phone)
*
Head restraints ........................ 294
Head-up display ....................... 254
Headlights ................................ 337
AHS (Adaptive High-beam
System) .............................. 341
Automatic headlight
leveling ............................... 339
Extended Headlight
Lighting system .................. 338
Light switch ........................... 337
Replacing light bulbs............. 644
Heaters
Automatic air conditioning
system ................................ 522
Hybrid battery (traction
battery) ............................... 144
Outside rear view mirrors...... 527
Seat heaters ......................... 539
High coolant temperature
warning light .......................... 661
High mounted stoplight
Replacing .............................. 644
High-voltage components ........ 98
Hill-start assist control............ 509
Hood ......................................... 584
F
G
H