2023 TOYOTA PRIUS PLUG-IN HYBRID traction control

5356-1. Using the air conditioning system and defogger
Prius Plug-in Hybrid_OM_OM47F38E_(EE)
6
Interior features
Remote Air Conditioning System
If the Remote Air Conditioning System is used while the charging
cable is connected to the vehicle, the reduction of charge in the hybrid
battery (traction battery) will be suppressed to allow you to use elec-
tricity from an external power source.
Charging will be conducted automatically after the Remote Air Condition-
ing System is stopped.
Check the temperature setting of the air conditioning system.
(P. 522)
The Remote Air Conditioning System will operate in accordance with the
temperature settings of the air conditioning system.
Press and hold “A/C” on the wire-
less remote control to operate the
Remote Air Conditioning System.
The system will shut off if a door is
opened.
The system can be stopped by
pressing “A/C” twice.
The Remote Air Conditioning System uses electrical energy
stored in the hybrid battery (traction battery) and allows the air
conditioning to be operated by remote control.
Before leaving the vehicle
Activating the Remote Air Conditioning System

5817-3. Do-it-yourself maintenance
Prius Plug-in Hybrid_OM_OM47F38E_(EE)
7
Maintenance and care
Do-it-yourself ser vice precautions
If you perform maintenance by yourself, be sure to follow the
correct procedure as given in these sections.
ItemsParts and tools
12-volt battery
condition
(P. 594)• Warm water • Baking soda • Grease
• Conventional wrench (for terminal clamp bolts)
• Distilled water
Engine/power
control unit
coolant level
(P. 591)• “Toyota Super Long Life Coolant” or a similar high
quality ethylene glycol-based non-silicate, non-
amine, non-nitrite and non-borate coolant with long-
life hybrid organic acid technology
“Toyota Super Long Life Coolant” is pre-mixed with
50% coolant and 50% deionized water.
• Funnel (used only for adding coolant)
Engine oil level
(P. 588)• “Toyota Genuine Motor Oil” or equivalent
• Rag or paper towel
• Funnel (used only for adding engine oil)
Fuses (P. 6 3 5 )• Fuse with same amperage rating as original
Hybrid battery
(traction battery)
air intake vent
(P. 573)
• Vacuum cleaner, etc.
• Flathead screwdriver
Light bulbs
(P. 639)
• Bulb with same number and wattage rating as origi-
nal
• Flathead screwdriver
• Wrench
Radiator and
condenser
(P. 593)

Tire inflation
pressure
(P. 608)• Tire pressure gauge
• Compressed air source
Washer fluid
(P. 598)• Water or washer fluid containing antifreeze (for win-
ter use)
• Funnel (used only for adding water or washer fluid)

6748-2. Steps to take in an emergency
Prius Plug-in Hybrid_OM_OM47F38E_(EE)
■If the shift position cannot be changed or the power switch is turned to
ACCESSORY mode even if trying to turn the power switch off when a
warning message is shown
If the 12-volt battery is discharged or the shift control system is malfunction-
ing, the followings may occur.
● The shift position may not be changed to P.
When parking, stop the vehicle on level ground and apply the parking brake
firmly.
● The hybrid system may not start.
● The power switch may be turned to ACCESSORY mode even if trying to
turn the power switch off.
In this case, the power switch may be turned off after applying the parking
brake.
● The automatic P position selection function (P. 332) may not operate.
Before turning the power switch off, be sure to press the P position switch
and check that the shift position is in P by the shift position indicator or P
position switch indicator.
■ Warning buzzer
 P. 665
NOTICE
■If “Maintenance Required for Traction Battery at Your Dealer” is shown
The hybrid battery (traction battery) is scheduled to be inspected or
replaced. Have the vehicle inspected by any authorized Toyota retailer or
Toyota authorized repairer, or any reliable repairer immediately.
● Continuing to drive the vehicle without having the hybrid battery (traction
battery) inspected will cause the hybrid system not to start.
● If the hybrid system does not start, contact any authorized Toyota retailer
or Toyota authorized repairer, or any reliable repairer immediately.

6938-2. Steps to take in an emergency
Prius Plug-in Hybrid_OM_OM47F38E_(EE)
8
When trouble arises
If the hybrid system will not star t
One of the following may be the cause of the problem:
● The charging cable may be attached to the vehicle. (P. 155)
● The electronic key may not be functioning properly.* (P. 695)
● There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle. ( P. 100)
● There may be a malfunction in the immobilizer system.* (P. 7 4 )
● There may be a malfunction in the shift control system.*
( P. 326, 674)
● The hybrid system may be malfunctioning due to an electrical prob-
lem such as electronic key battery depletion or a blown fuse. How-
ever, depending on the type of malfunction, an interim measure is
available to start the hybrid system. ( P. 694)
● There is a possibility that the temperature of the hybrid battery
(traction battery) is extremely low (approximately below -30 C
[-22 F]). (P. 100, 325)
*: It may not be possible to shift the shift position other than P.
One of the following may be the cause of the problem:
● The 12-volt battery may be discharged. (P. 699)
● The 12-volt battery terminal connections may be loose or corroded.
( P. 594)
Reasons for the hybrid system not starting vary depending on
the situation. Check the following and perform the appropriate
procedure:
The hybrid system will not start even though the correct starting
procedure is being followed. ( P. 323)
The interior lights and headlights are dim, or the horn does not
sound or sounds at a low volume.

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”.

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