sensor TOYOTA PRIUS PRIME 2023 User Guide

2064-2. Opening, closing and locking the doors
●When the electronic key is placed
near a battery charger or elec-
tronic devices
●When the vehicle is parked in a
pay parking spot where radio
waves are emitted.
If the doors cannot be
locked/unlocked using the smart key
system, lock/unlock the doors by
performing any of the following:
●Bring the electronic key close to
either front door handle and oper-
ate the entry function.
●Operate the wireless remote con-
trol.
If the doors cannot be
locked/unlocked using the above
methods, use the mechanical key.
(  P.587)
If the hybrid system cannot be
started using the smart key system,
refer to P.588.
■Note for the entry function
●Even when the electronic key is
within the effective range (detec-
tion areas), the system may not
operate properly in the following
cases:
• The electronic key is too close to the window or outside door han-
dle, near the ground, or in a high
place when the doors are locked
or unlocked.
• The electronic key is on the instru- ment panel, luggage compartment
or floor, or in the door pockets or
glove box when the hybrid system
is started or power switch modes
are changed.
●Do not leave the electronic key on
top of the instrument panel or near
the door pockets when exiting the
vehicle. Depending on the radio
wave reception co nditions, it may
be detected by the antenna out-
side the cabin and the door will
become lockable from the outside,
possibly trapping the electronic
key inside the vehicle.
●As long as the electronic key is within the effective range, the
doors may be locked or unlocked
by anyone. However, only the
doors detecting the electronic key
can be used to unlock the vehicle.
●Even if the electronic key is not
inside the vehicle, it may be possi-
ble to start the hybrid system if the
electronic key is near the window.
●The doors may unlock if a large
amount of water splashes on the
door handle, such as in the rain or
in a car wash when the electronic
key is within the effective range.
(The doors will automatically be
locked after approximately 60 sec-
onds if the doors are not opened
and closed.)
●If the wireless remote control is
used to lock the doors when the
electronic key is near the vehicle,
there is a possibilit
y that the door
may not be unlocked by the entry
function. (Use the wireless remote
control to unlock the doors.)
●Touching the door lock sensor
while wearing gloves may delay or
prevent lock operation. Remove
the gloves and touch the lock sen-
sor again.
●When the lock operation is per-
formed using the lock sensor, rec-
ognition signals will be shown up
to two consecutive times. After
this, no recognition signals will be
given.
●If the door handle becomes wet
while the electronic key is within
the effective range, the door may
lock and unlock repeatedly. In that
case, follow the following correc-
tion procedures to wash the vehi-
cle:
• Place the electron ic key in a loca-
tion 6 ft. (2 m) or more away from
the vehicle. (Take care to ensure
that the key is not stolen.)
• Set the electronic key to battery- saving mode to disable the smart
key system. ( P.205)
●If the electronic key is inside the

2074-2. Opening, closing and locking the doors
4
Before driving
vehicle and a door handle
becomes wet during a car wash, a
message may be shown on the
multi-information display and a
buzzer will sound outside the vehi-
cle. To turn off the alarm, lock all
the doors.
●The lock sensor may not work
properly if it comes into contact
with ice, snow, mud, etc. Clean
the lock sensor and attempt to
operate it again.
●A sudden approach to the effec-
tive range or door handle may pre-
vent the doors from being
unlocked. In this case, return the
door handle to the original position
and check that the doors unlock
before pulling the door handle
again.
●If there is another electronic key in
the detection area, it may take
slightly longer to unlock the doors
after the door handle is gripped.
■When the vehicle is not driven
for extended periods
●To prevent theft of the vehicle, do
not leave the electronic key within
6 ft. (2 m) of the vehicle.
●The smart key system can be
deactivated in advance. ( P.622)
●Battery-saving mode can reduce
the power consumption of elec-
tronic keys. ( P.205)
■To operate the system properly
Make sure to carry the electronic
key when operating the system. Do
not get the electronic key too close
to the vehicle when operating the
system from the outside of the vehi-
cle.
Depending on the position and hold-
ing condition of the electronic key,
the key may not be detected cor-
rectly and the system may not oper-
ate properly. (The alarm may go off
accidentally, or the door lock pre-
vention may not operate.)
■If the smart key system does
not operate properly
●Locking and unlocking the doors:
Use the mechanical key.
(  P.587)
●Starting the hybrid system:
P.588
■Customization
Settings (e.g. smart key system)
can be changed.
(Customizable features: P.622)
If the smart key system has been
deactivated in a customized setting,
refer to the explanations for the fol-
lowing operations.
●Locking and unlocking the doors:
Use the wireless remote control or
mechanical key. ( P.185, 587)
●Starting the hybrid system and
changing power switch modes:
P.588
●Stopping the hybrid system:
P.253
WARNING
■Caution regarding interfer-
ence with electronic devices
●People with implantable car-
diac pacemakers, cardiac
resynchronization therapy-
pacemakers or implantable car-
dioverter defibrillators should
keep away from the smart key
system antennas. ( P.203)
The radio waves may affect the
operation of such devices. If
necessary, the entry function
can be disabled. Ask your
Toyota dealer fo r details, such
as the frequency of radio waves
and timing of the emitted radio
waves. Then, consult your doc-
tor to see if you should disable
the entry function.

2164-4. Adjusting the steering wheel and mirrors
*: If equipped
The height of the rear view mir-
ror can be adjusted to suit your
driving posture.
Adjust the height of the rear
view mirror by moving it up and
down.
Manual anti-glare inside rear
view mirror
Reflected light from the head-
lights of vehicles behind can be reduced by operating the lever.
Normal position
Anti-glare position
Auto anti-glare inside rear
view mirror
Responding to the level of
brightness of the headlights of
vehicles behind, the reflected
light is automatically reduced.
■To prevent sensor error (vehi-
cles with auto anti-glare inside
rear view mirror)
To ensure that the sensors operate
properly, do not touch or cover
them.
Inside rear view mir-
ror*
The rear view mirror’s posi-
tion can be adjusted.
Adjusting the height of
rear view mirror
WARNING
■Caution while driving
Do not adjust the position of the
mirror while driving.
Doing so may lead to mishandling
of the vehicle and cause an acci-
dent, resulting in death or serious
injury.
Anti-glare function
A
B

2204-4. Adjusting the steering wheel and mirrors
■Adjusting the display (digital
mirror mode)
●The icons will disappear if a button
is not operated for approximately
5 seconds or more.
●If the displayed image is adjusted,
it may appear distorted. This is not
a malfunction.
●If the brightness of the Digital
Rear-view Mirror is set too high, it
may cause eye strain. Adjust the
Digital Rear-view Mirror to an
appropriate brightness. If your
eyes become tired, change to
optical mirror mode.
●The brightness of the Digital Rear-
view Mirror will change automati-
cally according to the brightness
of the area in front of your vehicle.
●The digital anti-glare mode oper-
ates only in locations where the
surroundings are dark. Depending
on the surrounding illumination
environment, the image may not
darken and it may not be possible
to reduce headlight glare from
vehicles to the rear.
■To prevent the light sensors
from malfunctioning
To prevent the light sensors from
malfunctioning, do not touch or
cover them.
■Cleaning the mirror surface
If the mirror surface is dirty, the
image on the display may be dif-
ficult to see.
Clean the mirror surface gently
using a soft dry cloth.
■Cleaning the camera
If it is difficult to see the Digital
WARNING
Observe the following precau-
tions.
Failure to do so may result in
death or serious injury.
■While driving
●Do not adjust the position of the
Digital Rear-view Mirror or
adjust the displa y settings while
driving.
Stop the vehicle and operate
the Digital Rear-view Mirror
control switches.
Failure to do so may cause a
steering wheel operation error,
resulting in an unexpected acci-
dent.
●Always pay attention to the
vehicle’s surroundings.
The size of the vehicles and other
objects may look different when in
digital mirror mode and optical
mirror mode.
When backing up, make sure to
directly check the safety of the
area around your vehicle, espe-
cially behind the vehicle.
Additionally, if a vehicle
approaches from the rear in the
dark, such as at night, the sur-
rounding area may appear dim.
■To prevent causes of fire
If the driver continues using the
Digital Rear-view Mirror while
smoke or odor comes from the
mirror, it may result in fire. Stop
using the system immediately and
contact your Toyota dealer.
Cleaning the Digital Rear-
view Mirror

2705-3. Operating the lights and wipers
Canada
1 The headlights, side
marker, parking, LED acces-
sories lamp (if equipped),
daytime running lights
( P.270) and so on turn on
and off automatically.
2 The side marker, park-
ing, LED accessories lamp (if
equipped), tail, license plate,
instrument panel lights, and
daytime running lights
( P.270) turn on.
3 The headlights and all
lights listed above (except
daytime running lights) turn
on.
■AUTO mode can be used when
The power switch is in ON.
■Daytime running light system
●Vehicles without LED accessories
lamp: The daytime running lights
illuminate using the same lights as
the low beam head lights, and illu-
minate dimmer than the low beam
headlights.
●Vehicles with LED accessories
lamp: The daytime running lights
illuminate using the same lights as
the parking lights, and illuminate
brighter than the parking lights.
●To make your vehicle more visible
to other drivers during daytime
driving, the daytime running lights
turn on automatically when all of
the following conditions are met.
(The daytime running lights are
not designed for use at night.)
• The hybrid system is operating
• The parking brake is released
• The headlight switch is in the ,
or
* position
*: When the surroundings are bright
The daytime running lights remain
on after they illuminate, even if the
parking brake is set again.
●For the U.S.A.: Daytime running
lights can be turned off by operat-
ing the switch.
●Compared to turning on the head-
lights, the daytime running light
system offers gr eater durability
and consumes less electricity, so
it can help improve fuel economy.
■Headlight control sensor (if
equipped)
The sensor may not function prop-
erly if an object is placed on the sen-
sor, or anything that blocks the
sensor is affixed to the windshield.
Doing so interferes with the sensor
detecting the level of ambient light
and may cause the automatic head-
light system to malfunction.

2715-3. Operating the lights and wipers
5
Driving
■Automatic light off system
●When the headlights are on: The
lights turn off 30 seconds after the
power switch is turned to OFF and
a door is opened and closed. (The
lights turn off immediately if
on the key is pressed after all the
doors are closed.)
●When only the tail lights are on:
The tail lights turn off automati-
cally if the power switch is turned
to OFF and the driver’s door is
opened.
To turn the lights on again, turn the
power switch to ON, or turn the light
switch to the , or posi-
tion once and then back to the
or position.
■Light reminder buzzer
A buzzer sounds when the driver’s
door is opened while the lights are
turned on with the power switch in
OFF (except when the automatic
light off system is operated).
■12-volt battery-saving function
In order to prevent the 12-volt bat-
tery of the vehicle from discharging,
if the headlights and/or tail lights are
on when the power switch is turned
to OFF, the battery saving function
will operate and aut omatically turn
off all the lights after approximately
20 minutes.
When any of the following are per-
formed, the 12-volt battery-saving
function is canceled once and then
reactivated. All the lights will turn off
automatically 20 minutes after the
12-volt battery-saving function has
been reactivated:
●When the headlight switch is oper-
ated
●When a door is opened or closed
■Windshield wiper linked head-
light illumination (if equipped)
When driving during daytime with
the headlight switch is in the
position, if the windshield wipers are
used, the headlights will turn on
automatically after several seconds
to help enhance the visibility of your
vehicle.
■If “Headlight System Malfunc-
tion Visit Your Dealer” is dis-
played on the mu lti-information
display
The system may be malfunctioning.
Have the vehicle inspected by your
Toyota dealer.
■Customization
Settings (e.g. light sensor sensitiv-
ity) can be changed.
(Customizable features: P.618)
1 With the headlights on, push
the lever away from you to
turn on the high beams.
NOTICE
■To prevent 12-volt battery dis-
charge
Do not leave the lights on longer
than necessary when the hybrid
system is not operating.
Turning on the high beam
headlights

2735-3. Operating the lights and wipers
5
Driving
2Turn the headlight switch to
the or position.
When the headlight switch lever is
in the low beam position, the AHB
system will be enabled and the
AHB indicator will illuminate.
■Automatic operating condi-
tions of the high beams
●When all of the following condi-
tions are met, the high beams will
illuminate automatically:
• The vehicle speed is approxi-
mately 21 mph (34 km/h) or more.
• The area ahead of the vehicle is dark.
• There are no vehicles ahead with lights on.
• There are few streetlights or other
lights on the road ahead.
●If any of the following conditions
are met, the headlights will
change to the low beams:
• Vehicle speed drops below
approximately 17 mph (27 km/h).
• The area ahead of the vehicle is not dark.
• There is a vehicle ahead with lights on.
• There are many streetlights or
other lights on the road ahead.
■Front camera detection
●In the following situations, the high
beams may not be automatically
changed to the low beams:
• When a vehicle cuts in front of your vehicle
• When another vehicle crosses in front of the vehicle • When vehicles ahead are repeat-
edly detected and then hidden
due to repeated curves, road
dividers or roadside trees
• When a vehicle ahead approaches from a far lane
• When a vehicle ahead is far away
• When a vehicle ahead has no lights
• When the lights of a vehicle ahead are dim
• When a vehicle ahead is reflecting
strong light, such as own head-
lights
• Situations in which the sensors
may not operate properly: P.289
●The headlights may change to the
low beams if a vehicle ahead that
is using fog lights without its head-
lights turned on is detected.
●House lights, street lights, traffic
signals, and illuminated billboards
or signs may cause the high
beams to change to the low
beams, or the low beams to
remain on.
●The following may change the tim-
ing at which the headlights
change to the low beams:
• The brightness of lights of vehi-
cles ahead
• The movement and direction of vehicles ahead
• The distance between the vehicle and a vehicle ahead
• When a vehicle ahead only has
lights illuminate d on one side
• When a vehicle ahead is a two- wheeled vehicle
• The condition of the road (gradi- ent, curve, condition of the road
surface, etc.)
• The number of passengers and amount of luggage
●The headlights may change
between the high beams and low
beams unexpectedly.
●Bicycles and other small vehicles
may not be detected.
●In the following situations, the sys-
tem may not be able to correctly
detect the brightness of the sur-

2745-3. Operating the lights and wipers
roundings. This may cause the
low beams to remain on or the
high beams to flash or dazzle
pedestrians or vehicles ahead. In
such a case, it is necessary to
manually change between the
high beams and low beams.
• When there are lights similar to headlights or tail lights in the sur-
rounding area
• When headlights or tail lights of vehicles ahead are turned off,
dirty, changing color, or not aimed
properly
• When the headlights are repeat-
edly changing between the high
beams and low beams.
• When use of the high beams is
inappropriate or when the high
beams may be flashing or daz-
zling pedestrians or other drivers.
• When the vehicle is used in an area in which vehicles travel on
the opposite side of the road of
the country for which the vehicle
was designed, for example using
a vehicle designed for right-hand
traffic in a left-hand traffic area, or
vice versa
• When it is necessary to disable
the system:  P.284
• Situations in which the sensors may not operate properly: P.289
■Temporarily reducing front
camera sensitivity
The sensitivity of the front camera
can be temporarily reduced.
1 Turn the power switch off with
the following conditions met.
●The headlight swit ch is in the
or position.
●The headlight switch lever is in the
low beam position.
●The automatic High Beam switch
is on.
2 Turn the power switch to ON.
3 Within 60 seconds after perform-
ing step 2, push the headlight
switch lever to the high beam
position then pull it to the original position quickly 10 times, then
leave the lever in its original
position.
4 If the sensitivity is changed, the
Automatic High Beam indicator
will blink 3 times.
■Changing to the high
beams
Push the lever forward.
The AHB indicator will turn off and
the headlight high beam indicator
will turn on.
Pull the lever to its original position
to enable the Automatic High Beam
system again.
■Changing to the low beams
Press the Automatic High Beam
switch.
The AHB indicator will turn off.
Press the switch to enable the
Automatic High Beam system
again.
Turning the high beams
on/off manually

2765-3. Operating the lights and wipers
5*1 or *2
Temporary operation
*1:For the U.S.A.
*2: For Canada
When is selected, the
wipers will operate automatically
when the sensor detects falling
rain. The system automatically
adjusts wiper timing in accor-
dance with rain volume and
vehicle speed.
The sensor sensitivity can be
adjusted by turning the switch
ring.
6 Increases the sensitivity
7 Decreases the sensitivity
8 Windshield cleaning
washer/wiper dual operation
Pulling the lever operates the wip-
ers and windshield cleaning
washer. The wipers will automatically oper-
ate a couple of times after the
washer squirts. (After operating
several times, th
e wipers operate
once more time after a short delay
to prevent dripping. However, the
dripping prevention does not oper-
ate while the vehicle is moving.)
9 Camera cleaning
washer operation (if
equipped)
Pushing the lever operates the ded-
icated camera cleaning washer to
clean the following cameras.
• The camera for Digital Rear-view Mirror (if equipped) ( P.221)
• The camera for rear view monitor
system
* (if equipped)
• The rear camera for panoramic
view monitor
* (if equipped)
*: Refer to “MULTIMEDIA OWNER’S MANUAL”.
■The windshield wiper and
washer can be operated when
The power switch is in ON.
■Using the voice control system
(if equipped)
The following operations can be
performed using the voice control
system:
●Operating the windshield wipers
only once
●Operating the windshield clean-
ing washer (it can be performed
only when the vehicle is stopped)
For details regarding the voice con-
trol system, refe r to “MULTIMEDIA
OWNER’S MANUAL”.
■Effects of vehicle speed on
wiper operation
With low speed windshield wiper
operation selected, wiper operation
will be switched from low speed to

2775-3. Operating the lights and wipers
5
Driving
intermittent wiper operation when
the vehicle is stationary. (However,
when the sensor sensitivity is
adjusted to the highest level, the
mode will not switch.)
■Raindrop sensor
●The raindrop sensor judges the
amount of raindrops.
An optical sensor is adopted. It may
not operate properly when sunlight
from the rising or setting of the sun
intermittently strikes the windshield,
or if bugs, etc. are present on the
windshield.
●If the wiper switch is turned to the
position while the power
switch is in ON, the wipers will
operate once to show that “AUTO”
mode is activated.
●When the sensor sensitivity ring is
turned toward hi gh while in the
“AUTO” mode, the wipers will
operate once to indicate that the
sensor sensitivity is enhanced.
●If the temperature of the raindrop
sensor is 185°F (85°C) or higher,
or 5°F (-15°C) or lower, the auto-
matic operation may not occur. In
this case, operate the wipers in
any mode other than “AUTO”.
■Front door opening linked wind-
shield wiper stop function
When is selected and the
windshield wipers are operating, if a
front door is opened while the vehi-
cle is stopped and the P position is
selected, operation of the wind- shield wipers will be stopped to pre-
vent anyone near the vehicle from
being sprayed by water from the
wipers. When the front door is
closed, wiper operation will resume.
■If no windshield washer fluid
sprays
Check that the washer nozzles are
not blocked if there is washer fluid in
the windshield washer fluid reser-
voir.
WARNING
■Caution regarding the use of
windshield wipers in “AUTO”
mode
The windshield wipers may oper-
ate unexpectedly if the sensor is
touched or the windshield is sub-
ject to vibration in “AUTO” mode.
Take care that your fingers or
anything else do not become
caught in the windshield wipers.
■Caution regarding the use of
windshield cleaning washer
fluid
When it is cold, do not use the
washer fluid until the windshield
becomes warm. The fluid may
freeze on the windshield and
cause low visibility. This may lead
to an accident, resulting in death
or serious injury.
NOTICE
■When the washer fluid tank is
empty
Do not operate the switch continu-
ally as the washer fluid pump may
overheat.