high beam TOYOTA PRIUS PLUG-IN HYBRID 2023 User Guide

3445-3. Operating the lights and wipers
Prius Plug-in Hybrid_OM_OM47F38E_(EE)
■Conditions in which the light distribution control of the headlights
changes automatically
●When all of the following conditions are met, the high beams will be turned
on automatically and the system will operate:
• The vehicle speed is approximately 60 km/h (37 mph) or more.
*
*
: The area in the direction that the vehicle is turning will be illuminated more
brightly than other areas while driving on a curve.
●When all of the following conditions are met, the variable high beams will
turn on and the distance that the low beams are projected will be adjusted
automatically, depending on the location of vehicles ahead:
• The vehicle speed is approximately 60 km/h (37 mph) or more.
• There are vehicles ahead with headlights or tail lights turned on.
• The area ahead of the vehicle is dark.
●If any of the following conditions is met, the high beams or variable high
beams will be changed to the low beams automatically:
• The vehicle speed is below approximately 40 km/h (25 mph).
• The area ahead of the vehicle is not dark.
• There are many vehicles ahead.
• Vehicles ahead are moving quickly and the high beams may blind the
drivers of the other vehicles.
■Front camera detection information
●The high beams may not be automatically changed to the variable high
beams in the following situations:
• When vehicles ahead suddenly appear from a curve
• When the vehicle is cut in front of by another vehicle
• When vehicles ahead are hidden from sight due to repeated curves, road
dividers or roadside trees
• When vehicles ahead appear from the faraway lane on wide road
• When vehicles ahead have no lights
●The high beams may be changed to the variable high beams if a vehicle
ahead that is using fog lights without its headlights turned on is detected.
●House lights, street lights, traffic signals, and illuminated billboards or signs
may cause the high beams to change to the variable high beams, cause the
high beams not to change to the variable high beams, or change the area
that is not illuminated.

3455-3. Operating the lights and wipers
Prius Plug-in Hybrid_OM_OM47F38E_(EE)
5
Driving
●The following factors may affect the amount of time taken to turn the high
beam on or off, or the speed by which the areas not illuminated change:
• The brightness of headlights, fog lights, and tail lights of vehicles ahead
• The movement and direction of vehicles ahead
• When a vehicle ahead only has operational lights on one side
• When a vehicle ahead is a two-wheeled vehicle
• The condition of the road (gradient, curve, condition of the road surface
etc.)
• The number of passengers and amount of luggage
●The light distribution control of the headlights may change unexpectedly.
●Bicycles or similar objects may not be detected.
●In the situations shown below, the system may not be able to accurately
detect surrounding brightness levels. This may cause the low beams to
remain on or the high beams to cause problems for pedestrians, vehicles
ahead or other parties. In these cases, manually switch between the high
and low beams.
• In bad weather (rain, snow, fog, sandstorms etc.)
• The windshield is obscured by fog, mist, ice, dirt etc.
• The windshield is cracked or damaged.
• The front camera is deformed or dirty.
• The front camera temperature is extremely high.
• Surrounding brightness levels are equal to those of headlights, tail lights
or fog lights.
• Vehicles ahead have headlights that are either switched off, dirty, are
changing color, or are not aimed properly.
• The vehicle is hit by water, snow, dust, etc. from a preceding vehicle.
• When driving through an area of intermittently changing brightness and
darkness.
• When frequently and repeatedly driving ascending/descending roads, or
roads with rough, bumpy or uneven surfaces (such as stone-paved
roads, gravel tracks etc.).
• When frequently and repeatedly taking curves or driving on a winding
road.
• There is a highly reflective object ahead of the vehicle, such as a sign or
a mirror.
• The back of a vehicle ahead is highly reflective, such as a container on a
truck.
• The vehicle’s headlights are damaged or dirty.
• The vehicle is listing or tilting, due to a flat tire, a trailer being towed etc.
• The high beam and low beam are repeatedly being switched between in
an abnormal manner.
• The driver believes that the high beam may be causing problems or dis-
tress to other drivers or pedestrians nearby.

3555-5. Using the driving support systems
Prius Plug-in Hybrid_OM_OM47F38E_(EE)
5
Driving
Toyota Safety Sense
◆PCS (Pre-Collision System)
 P. 3 6 8
◆LTA (Lane Tracing Assist)
 P. 3 7 9
◆AHS (Adaptive High-beam System)
 P. 3 4 1
◆RSA (Road Sign Assist)
 P. 3 9 5
◆Dynamic radar cruise control with full-speed range
 P. 4 0 1
The Toyota Safety Sense consists of the following drive assist
systems and contributes to a safe and comfortable driving expe-
rience:
Driving assist system
WARNING
■ Toyota Safety Sense
The Toyota Safety Sense is designed to operate under the assumption that
the driver will drive safely, and is designed to help reduce the impact to the
occupants and the vehicle in the case of a collision or assist the driver in
normal driving conditions.
As there is a limit to the degree of recognition accuracy and control perfor-
mance that this system can provide, do not overly rely on this system. The
driver is always responsible for paying attention to the vehicle’s surround-
ings and driving safely.

6738-2. Steps to take in an emergency
Prius Plug-in Hybrid_OM_OM47F38E_(EE)
8
When trouble arises
■If “Auto Power OFF to Conserve Battery” is shown
The power switch has been turned off by the automatic power off function.
When starting the hybrid system next time, operate the hybrid system for
approximately 5 minutes to recharge the 12-volt battery.
■ If “Engine Oil Level Low Add or Replace” is displayed
The engine oil level may be low. Check the level of the engine oil, and add
engine oil if necessary. This message may be displayed if the vehicle is
stopped on a slope. Move the vehicle to a level surface and check if the mes-
sage disappears.
■ If “Accelerator and Brake Pedals Pressed Simultaneously” is shown
The accelerator and brake pedals are being depressed simultaneously.
( P. 310)
Release the accelerator pedal and depress the brake pedal.
■ If a message that indicates the malfunction of front camera is displayed
The following systems may be suspended until the problem shown in the
message is resolved. ( P. 366, 659)
● PCS (Pre-Collision System)
● LTA (Lane Tracing Assist)
● AHS (Adaptive High-beam System)
● RSA (Road Sign Assist)
● Dynamic radar cruise control with full-speed range
■ If a message that indicates the malfunction of radar sensor is displayed
The following systems may be suspended until the problem shown in the
message is resolved. ( P. 366, 659)
● PCS (Pre-Collision System)
● LTA (Lane Tracing Assist)
● Dynamic radar cruise control with full-speed range
■ If “Radar Cruise Control Unavailable See Owner’s Manual” is shown
The dynamic radar cruise control with full-speed range system is suspended
temporarily or until the problem show n in the message is resolved. (causes
and coping methods: P. 366)
■ If “Radar Cruise Control Unavailable” is shown
The dynamic radar cruise control with full-speed range system cannot be
used temporarily. Use the system when it becomes available again.

7309-2. Customization
Prius Plug-in Hybrid_OM_OM47F38E_(EE)
■Automatic light control system (P. 337)
■AHS (Adaptive High-beam System) (P. 341)
*: Only high beam will be turned on or off.
FunctionDefault
settingCustomized
setting
Light sensor sensitivityLevel 0Level -2 to 2–OO
Time elapsed before head-
lights turn off (Extended Head-
light Lighting system)
30 seconds
60 seconds
––O90 seconds
120 seconds
123
FunctionDefault settingCustomized
setting
Adaptive High-beam SystemOnOff*––O
Clearance between a vehicle
ahead and the shaded high
beams
Standard
Narrow
––O
Wide
Adaptive adjustment of the
high-beam brightness and illu-
minated area according to
vehicle speedApproximately
120 km/h
(75 mph) or
more
Approximately
100 km/h
(63 mph) or
more
––OApproximately
80 km/h
(50 mph) or
more
Intensity adjustment of the
high beams when driving
around a curve (illuminates
the area in the direction vehi-
cle is turning more brightly)
OnOff––O
Projection distance adjust-
ment of the low beams
according to the distance to a
preceding vehicle
OnOff––O
123

742Alphabetical index
Prius Plug-in Hybrid_OM_OM47F38E_(EE)
Alphabetical index
A/C............................................. 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
ABS (Anti-lock Brake
System) .................................. 509
Function ................................ 509
Warning light ......................... 660
AHS (Adaptive High-beam
System) .................................. 341
Air conditioning filter .............. 625
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
Air intake vent ............................ 99
Cleaning ................................ 573Airbag manual on-off
system ...................................... 51
Airbags ....................................... 39
Airbag manual on-off
system .................................. 51
Airbag operating conditions .... 45
Airbag precautions for your
child ...................................... 41
Airbag warning light .............. 660
Correct driving posture ........... 32
Curtain shield airbag
operating conditions ............. 45
Curtain shield airbag
precautions........................... 43
General airbag precautions .... 41
Locations of airbags................ 39
Modification and disposal of
airbags.................................. 44
Side airbag operating
conditions ............................. 45
Side airbag precautions .......... 42
Side and curtain shield
airbags operating
conditions ............................. 45
Side and curtain shield
airbags precautions .............. 43
SRS airbags............................ 39
Alarm .......................................... 76
Alarm ...................................... 76
Intrusion sensor ...................... 79
A

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

750Alphabetical index
Prius Plug-in Hybrid_OM_OM47F38E_(EE)
Jack ........................................... 613
Positioning a floor jack .......... 586
Vehicle-equipped jack ........... 613
Jack handle .............................. 613
Jam protection function .......... 304
Keyless entry ........................... 273
Smart entry & start system.... 283
Wireless remote control ........ 273
Keys .......................................... 268
Battery-saving function ......... 285
Electronic key........................ 268
Engine switch ........................ 323
If the electronic key does not
operate properly ................. 695
If you lose your keys ..... 269, 272
Key number plate .................. 268
Keyless entry ........................ 273
Mechanical key ..................... 269
Power switch ......................... 323
Replacing the battery ............ 632
Smart entry & start system.... 283
Warning buzzer ..................... 284
Wireless remote control ........ 268
Knee airbags .............................. 39
Language (multi-information
display) ................................... 250Lever
Auxiliary catch lever .............. 584
Hood lock release lever ........ 584
Shift lever .............................. 329
Tilt and telescopic steering
lock release lever ............... 297
Turn signal lever ................... 335
Wiper lever............................ 348
License plate lights ................. 337
Light switch ........................... 337
Replacing light bulbs............. 644
Light
AHS (Adaptive High-beam
System) .............................. 341
Door courtesy lights .............. 541
Emergency flasher switch ..... 648
Extended Headlight
Lighting system .................. 338
Fog light switch ..................... 347
Headlight switch.................... 337
Illuminated entry system ....... 543
Interior lights ................. 542, 543
Interior light list...................... 541
Luggage compartment
light..................................... 279
Personal lights ...................... 542
Replacing light bulbs............. 639
Shift lever light ...................... 541
Turn signal lever ................... 335
Vanity lights .......................... 555
Wattage ................................ 723
Light bulbs
Replacing .............................. 639
Wattage ................................ 723
LTA (Lane Tracing Assist) ...... 379
Luggage cover ......................... 553
J
K
L

754Alphabetical index
Prius Plug-in Hybrid_OM_OM47F38E_(EE)
S-FLOW (Front seat
concentrated airflow
mode)...................................... 525
S-IPA (Simple Intelligent
Parking Assist System) ........ 473
Seat back pockets ................... 549
Seat belts .................................... 34
Adjusting the seat belt............. 35
Child restraint system
installation............................. 68
Cleaning and maintaining
the seat belt ........................ 575
Emergency Locking
Retractor (ELR) .................... 36
How to wear your seat belt ..... 32
How your child should wear
the seat belt .......................... 36
Pregnant women, proper
seat belt use ......................... 37
Reminder light and buzzer .... 662
Seat belt pretensioners ........... 35
SRS warning light ................. 660
Seat heaters ............................. 539
Seats ................................. 290, 292
Adjustment ............................ 290
Adjustment precautions ........ 291
Armrest ................................. 563
Child seats/child restraint
system installation ................ 67
Cleaning ................................ 572
Front seats ............................ 290
Head restraint ....................... 294
Properly sitting in the seat....... 32
Rear seats............................. 292
Seat back pocket .................. 549
Seat heaters.......................... 539Sensor
AHS (Adaptive High-beam
System) .............................. 341
Automatic headlight
system ................................ 338
BSM (Blind Spot Monitor) ..... 438
Door handle .......................... 273
Front camera ........................ 356
Humidity sensor .................... 534
Inside rear view mirror .......... 300
Intrusion sensor ...................... 79
LTA (Lane Tracing Assist) .... 379
Parking Support Brake
function ............................... 450
Radar sensor ........................ 356
Rain-sensing windshield
wipers ................................. 349
RCTA (Rear Crossing Traffic
Alert function) ..................... 438
S-IPA (Simple Intelligent
Parking Assist System) ...... 503
Toyota parking
assist-sensor ...................... 450
Service plug ............................... 98
Service reminder indicators ... 204
Shift lever ................................. 329
Shift lever light......................... 541
Side airbags ............................... 39
Side doors ................................ 273
Side mirrors ............................. 301
Adjustment ............................ 301
BSM (Blind Spot Monitor) ..... 423
Folding .................................. 301
Outside rear view mirror
defoggers ........................... 527
S

755Alphabetical index
Prius Plug-in Hybrid_OM_OM47F38E_(EE)
Side turn signal lights ............. 335
Replacing light bulbs ............. 644
Turn signal lever ................... 335
Side windows ........................... 303
Water-repellent coating ......... 567
Simple Intelligent Parking
Assist System (S-IPA) ........... 473
Smart entry & start system ..... 283
Antenna location ................... 283
Entry functions ...................... 273
Starting the hybrid system .... 323
Smart lid & connector
locking system ...................... 130
Snow tires................................. 516
Solar charging system ............ 178
Spark plug ................................ 720
Specifications .......................... 714
Speech command system
*
Speed limiter ............................ 420
Speedometer ............................ 212
SRS airbags................................ 39
Steering wheel ......................... 297
Adjustment ............................ 297
Audio switches
*
Meter control switches .......... 195
Talk switch
*
Telephone switches*
TRIP switch ........................... 214
Stop lights
Replacing light bulbs ............. 644
Storage feature ........................ 544
Storage precautions ................ 544
Stuck
If the vehicle becomes
stuck ................................... 710
Sun visors ................................ 555Switch
Adaptive High-beam System
switch ................................. 342
Audio remote control
switches
*
Camera switch*
Charging schedule switch ..... 169
Cruise control switch............. 401
Door lock switches ................ 275
Driving mode select switch ... 418
Emergency flashers switch ... 648
Engine switch........................ 323
EV City mode switch ............... 88
EV/HV mode selection
switch ................................... 88
Fog light switch ..................... 347
Fuel filler door opener
switch ................................. 353
“HUD” (Head-up display)
switch ................................. 256
Ignition switch ....................... 323
Instrument cluster light
control switch...................... 196
LTA (Lane Tracing Assist)
switch ................................. 387
Light switch ........................... 337
Meter control switches .......... 195
Outside rear view mirror
switches.............................. 301
P position switch ................... 330
Power door lock switches ..... 275
Power switch......................... 323
Power window switch............ 303
*: Refer to “Navigation system Owner’s manual”.