2023 TOYOTA PRIUS PRIME warning lights

5648-2. Steps to take in an emergency
■The tire pressure warning light
may come on due to natural
causes
The tire pressure warning light may
come on due to natural causes such
as natural air leaks and tire inflation
pressure changes caused by tem-
perature. In this case, adjusting the
tire inflation pressure will turn off the
warning light (after a few minutes).
■Conditions that the tire pres-
sure warning system may not
function properly
 P.517
WARNING
■If a warning light comes on or
a warning buzzer sounds
when a warning message is
shown on the multi-informa-
tion display
*
Check and follow the message
shown on the multi-information
display.
Failure to do so may result in
death or serious injury.
*: Warning lights illuminate in red
or yellow and the warning
buzzer beeps once or sounds
continuously.
■When the electric power
steering system warning light
comes on
When the light comes on yellow,
the assist to the power steering is
restricted. When the light comes
on red, the assist to the power
steering is lost and handling oper-
ations of the steering wheel
become extremely heavy.
If the steering wheel becomes
heavier than usual when operat-
ing, hold firmly and operate using
more force than usual.
■If the tire pressure warning
light comes on
Be sure to observe the following
precautions. Failure to do so
could cause a loss of vehicle con-
trol and result in death or serious
injury.
●Stop your vehicle in a safe
place as soon as possible.
Adjust the tire inflation pressure
immediately.
●If the tire pressure warning light
comes on even after tire infla-
tion pressure adjustment, it is
probable that you have a flat
tire. Check the tires. If a tire is
flat, repair the flat tire by using
emergency tire puncture repair
kit.
●Avoid abrupt maneuvering and
braking. If the vehicle tires dete-
riorate, you could lose control of
the steering wheel or the
brakes.
■If a blowout or sudden air
leakage should occur
The tire pressure warning system
may not activate immediately.
■Maintenance of the tires
Each tire, includ ing the spare (if
provided), should be checked
monthly when cold and inflated to
the inflation pressure recom-
mended by the vehicle manufac-
turer on the vehicle placard or tire
inflation pressure label (tire and
load information label). (If your
vehicle has tires of a different size
than the size indicated on the
vehicle placard or tire inflation
pressure label [tire and load infor-
mation label], you should deter-
mine the proper tire inflation
pressure for those tires.)

5668-2. Steps to take in an emergency
The warning lights and warning buzzers operate as follows depend-
ing on the content of the message. If a message indicates the need
for inspection by a dealer, have the vehicle inspected by your Toyota
dealer immediately.
If a warning message
is displayed
The multi-information dis-
play shows warnings of sys-
tem malfunctions,
incorrectly performed oper-
ations, and messages that
indicate a need for mainte-
nance. When a message is
shown, perform the correc-
tion procedure appropriate
to the message.
If a warning message is dis-
played again after the appro-
priate actions have been
performed, contact your
Toyota dealer.
Messages and warnings

6259-2. Customization
9
Vehicle specifications
■Power switch (P.254)
■Regeneration Boost ( P.260)
■Reverse warning buzzer ( P.256)
■Automatic light control system ( P.269)
Wireless remote control
linked operation (open)OffOnO
Wireless remote control
linked operation signal
(buzzer)
OnOffO
FunctionCustomized setting
ACC customization
Enabling/Disabling ACC
mode
On/OffOO
FunctionDefault settingCustomized
setting
Deceleration (regenera-
tive braking force)LowMediumOHigh
Deceleration MemoryOnOffO
FunctionDefault settingCustomized setting
Signal (buzzer) when the
shift position is in ROffOnO
FunctionDefault settingCustomized setting
Daytime running lights*1, 2OnOffOO
Light sensor sensitivity*1Normal
Brighter
OOBright
Dark
Darker
FunctionDefault settingCustomized settingABC
ABC
ABC
ABC
ABC

6269-2. Customization
*1: This setting changes in accordance with My Settings.
*2: Except for Canada
■Driver monitor*1 ( P.292)
*1: If equipped
*2: This setting changes in ac cordance with My Settings.
■Pre-Collision System (P.293)
*: This setting changes in accordance with My Settings.
■Lane Change Assist*1 ( P.310)
*1: If equipped
*2: This setting changes in ac cordance with My Settings.
Time elapsed before
headlights automatically
turn off after doors are
closed
*1
30 seconds
Off
OO60 seconds
90 seconds
Windshield wiper linked
headlight illuminationOnOffO
FunctionCustomized setting
Warning function*2ON/OFFO
DMC Recording*2ON/OFFO
FunctionCustomized setting
Pre-Collision SystemON/OFFO
Warning timing*Later/Default/EarlierO
FunctionCustomized setting
Lane Change Assist*2ON/OFFO
FunctionDefault settingCustomized
settingABC
ABC
ABC
ABC

Alphabetical Index651
Automatic door locking and unlocking systems ............... 190
Automatic High Beam (AHB) . 272
Automatic light control system ............................................... 270
Average fuel economy ........... 163
Average vehicle speed .......... 163
B
Back door ................................ 191 Power back door .................. 194
Wireless remote control ....... 194
Back-up lights Replacing exterior lights ....... 543
Battery (12-volt battery) ......... 511 Checking the battery condition........................................... 513
If the 12-volt battery is dis- charged .............................. 589
Preparing and checking before winter.................................. 429
Replacing ............................. 591
Warning light ........................ 555
Battery (traction battery) ......... 83 Charging....................... 108, 116
Location.................................. 83
Specification ......................... 602
Blind Spot Monitor (BSM) ...... 354
Bottle holders ......................... 452
Brake Brake Hold ........................... 266
Fluid ..................................... 509
Parking brake ....................... 263
Regenerative braking ............. 78
Warning light ........................ 555
Brake assist ............................ 424
Brake Hold .............................. 266
Brake Override System .......... 240
Break-in tips ........................... 240
Brightness control Instrument panel light control160
BSM (Blind Spot Monitor) ...... 354
C
Care..................................486, 490 Aluminum wheels .................486
Exterior .................................486
Interior ..................................490
Seat belts .............................490
Cargo capacity ................246, 249
Cargo hooks............................454
Catch protection function Power windows ....................227
Chains......................................431
Charging ..........................108, 116 “My Room Mode” ..................134
AC charging cable ..................97
Charging equipment ...............94
Charging indicator ..................96
Charging messages .............143
Charging precautions ...........120
Charging procedure..............116
Charging schedule function ..123
Charging time may increase.114
High voltage components .......83
How to charge ......................116
Information related to charging display ................................111
Opening and closing the charging port lid ....................94
Power sources precautions ..107
Power sources that can be used ...........................................106
Safety functions ....................113
Solar charging system ..........136
When charging cannot be car- ried out ...............................139
Charging port ............................94 Opening and closing...............94
Child-protector lock ...............189
Child restraint system ..............51 Fixed with a LATCH system ...60
Fixed with a seat belt..............55
Front passenger occupant clas-

652Alphabetical Index
sification system ................... 44
Points to remember ................ 51
Riding with children ................ 50
Types of child restraint system installation method ............... 53
Using an anchor bracket ........ 62
Child safety ............................... 50 12-volt battery precautions . 511, 592
Airbag precautions ................. 40
Back door precautions ......... 191
Charging precautions ........... 115
Child restraint system............. 53
Heated steering wheel precau- tions.................................... 443
How your child should wear the seat belt................................ 32
Power window lock switch.... 229
Power window precautions .. 228
Rear door child-protector lock ........................................... 189
Removed key battery precau- tions.................................... 539
Seat belt extender precautions ............................................. 32
Seat belt precautions ............. 31
Seat heater precautions ....... 443
Window lock switch .............. 229
Cleaning .......................... 486, 490 Aluminum wheels ................. 486
Exterior ................................. 486
Interior .................................. 490
Radar sensor........................ 355
Seat belts ............................. 490
Condenser .............................. 508
Console box ............................ 451
Coolant Checking .............................. 507
Preparing and checking before winter.................................. 429
Warning light ........................ 556
Cooling system ...................... 507 Hybrid system overheating ...594
Coussins gonflables Emplacement des coussins gonflables SRS...................639
Modification et mise au rebut des coussins gonflables ............645
Précautions générales relatives aux coussins gonflables .....641
Précautions relatives aux couss- ins gonflables en rideau .....641
Précautions relatives aux couss- ins gonflables latéraux et en
rideau .................................641
Précautions relatives aux couss- ins gonflables latéraux........641
Précautions relatives aux couss- ins gonflables pour vos enfants...........................................641
Cruise control Cruise control .......................342
Dynamic radar cruise control 331
Cup holders.............................451
Current fuel economy ............163
Curtain shield airbags ..............35
Customizable features ...........618
Custom mode..........................422
D
Daytime running light system270 Replacing exterior lights .......543
Deck board ..............................454
Deck under tray ......................455
Defogger Outside rear view mirrors .....436
Rear window.........................436
Windshield ............................435
Digital Rear-view Mirror .........217
Dimensions .............................600
Dinghy towing .........................250
Display Cruise control .......................342
Driving information ...............163

654Alphabetical Index
........................................... 584
If the vehicle is submerged or water on the road is rising .. 548
If you have a flat tire ............. 574
If you lose your keys ............ 586
If you think something is wrong ........................................... 554
If your vehicle becomes stuck ........................................... 597
If your vehicle has to be stopped in an emergency................. 547
If your vehicle needs to be towed ........................................... 550
If your vehicle overheats ...... 594
Emergency flashers ............... 546
Emergency tire puncture repair kit ........................................... 574
Energy monitor ....................... 173
Engine Compartment ....................... 504
Hood..................................... 501
Identification number ............ 601
Engine coolant Capacity ............................... 603
Checking .............................. 507
Preparing and checking before winter.................................. 429
Warning light ........................ 556
Engine coolant temperature gauge..................................... 155
Engine oil Capacity ............................... 602
Checking .............................. 504
Preparing and checking before winter.................................. 429
Warning light ........................ 556
Engine oil maintenance data160, 506
Enhanced Vehicle Stability Con- trol (Enhanced VSC) ............ 424
Enhanced VSC (Enhanced Vehi- cle Stability Control) ............ 424 EPS (Electric Power Steering)
Function................................424
Warning light ........................558
EV/HV mode selection switch .74
EV driving range .......................90
Event data recorder (EDR) .......10
EV indicator...............................78
EV mode ....................................73
F
Flat tire.....................................574 Tire pressure warning system...........................................516
Floor mats .................................28
Fluid Brake ............................509, 604
Hybrid transmission ..............604
Washer .................................510
Footwell lights ........................446
Front doors .............................185
Front passenger’s seat belt reminder light........................562
Front passenger occupant clas- sification system ....................44
Front seat heaters ..................443
Front seats ..............................209 Adjustment ...........................209
Cleaning ...............................490
Correct driving posture ...........29
Driving position memory .......230
Head restraints .....................212
Memory recall function .........232
Power easy access system ..230
Seat heaters .........................443
Seat position memory...........231
Seat ventilators.....................444
Front side marker lights.........269 Replacing exterior lights .......543
Switch ...................................269
Front turn signal lights ..........262 Replacing exterior lights .......543
Turn signal lever ...................262

Alphabetical Index655
Fuel .......................................... 279Capacity ............................... 601
Fuel gauge ........................... 155
Information ........................... 607
Refueling .............................. 279
Type ............................. 601, 607
Warning light ........................ 562
Fuel filler door ..... ................... 280
Opener switch ...................... 280
Refueling .............................. 279
Fuel gauge .............................. 155
Fuses ....................................... 540
G
Garage door opener ............... 477
Gauges .................................... 155
Glove box ................................ 451
H
Headlights ............................... 269 AHB (Automatic High Beam) 272
Headlight aim ....................... 542
Replacing exterior lights ....... 543
Switch................................... 269
Headlights aim ........................ 542
Head restraints ....................... 212
Heated steering wheel ........... 443
Heaters Automatic air conditioning sys-tem ..................................... 434
Heated steering wheel ......... 443
Hybrid battery (traction battery) ........................................... 108
Outside rear view mirrors ..... 436
Seat heaters ......................... 443
High mounted stoplight Replacing exterior lights ....... 543
High voltage components ....... 83
Hill-start assist control .......... 424
Hood ........................................ 501
Hooks Cargo hooks .........................454
Retaining hooks (floor mat) ....28
Horn .........................................215
HV mode ....................................73
Hybrid battery (traction battery) .................................................83Charging ...............................116
Location ..................................83
Specification .........................602
Hybrid battery (traction battery) charge mode ...........................75
Hybrid system ...........................72 ACC ......................................254
Acoustic Vehicle Alerting System.............................................81
Brake Override System ........240
Drive-Start Control (DSC) .....245
Emergency shut off system ....87
Energy monitor/consumption screen.................................173
High voltage components .......83
How to start the hybrid system ...........................................251
Hybrid System Indicator .......155
If the hybrid system will not start ...........................................584
If your vehicle has to be stopped in an emergency .................547
Ignition switch (power switch) ...........................................251
Overheating ..........................594
Plug-in Hybrid Electric Vehicle driving tips ............................88
Plug-in hybrid system precau- tions ......................................83
Power (ignition) switch .........251
Regenerative braking .............78
Starting the hybrid system ....251
Hybrid System Indicator ........155
I
I/M test .....................................498