TOYOTA PRIUS PRIME 2023 Owners Manual

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

2725-3. Operating the lights and wipers
Pull the lever toward you to the
center position to turn the high
beams off.
2Pull the lever toward you and
release it to flash the high
beams once.
You can flash the high beams with
the headlights on or off.
1Press the Automatic High
Beam switch.
AHB (Automatic High
Beam)
The Automatic High Beam
uses a front camera located
on the upper portion of the
windshield to detect the
brightness of the lights of
vehicles ahead, street-
lights, etc., and automati-
cally changes the head
lights between the high
beams and low beams.
WARNING
■For safe use
Do not overly rely on the Auto-
matic High Beam. Always drive
safely, taking care to observe
your surroundings and turning the
high beams on or off manually if
necessary.
■To prevent unintentional
operation of the Automatic
High Beam system
●When it is necessary to disable
the system: P.284
Using the Automatic High
Beam system

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

2755-3. Operating the lights and wipers
5
Driving
It is recommended to switch to
the low beams when use of the
high beams is inappropriate or
when the high beams may
cause problems or distress to
other drivers or pedestrians
nearby.
Pull the lever rearward and then
return it to its original position.
The high beams will illuminate
while the lever is pulled, however,
after the lever is returned to its orig-
inal position, the low beams will
remain on for a certain amount of
time. After this, the Automatic High
Beam system will operate.
Operating the lever oper-
ates the wipers or washer as fol-
lows:
1
*1 or *2
Off
2
Rain-sensing operation
3
*1 or *2
Low speed operation
4
*1 or *2
High speed operation
Temporarily changing to
the low beams
Windshield wipers and
washer
Operating the lever can use
the windshield wipers or the
washer.
NOTICE
■When the windshield is dry
Do not use the wipers, as they
may damage the windshield.
Operating the wiper lever

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.

2785-3. Operating the lights and wipers
NOTICE
■When a nozzle becomes
blocked
In this case, contact your Toyota
dealer.
Do not try to clear it with a pin or
other object. The nozzle will be
damaged.
■To prevent 12-volt battery dis-
charge
Do not leave the wipers on longer
than necessary when the hybrid
system is off.

2795-4. Refueling
5
Driving
5-4.Refueling
Close all the doors and win-
dows, and turn the power
switch to OFF.
 Confirm the type of fuel.
■Fuel types
 P.607
■Fuel tank opening for unleaded
gasoline
To help prevent incorrect fueling,
your vehicle has a fuel tank opening
that only accommodates the spe-
cial nozzle on unleaded fuel pumps.
Opening the fuel tank
cap
The fuel tank of your vehicle
has a special structure,
which requires a reduction
in fuel tank pressure before
refueling. After the opener
switch has been pressed, it
will take several seconds
until the vehicle is ready for
refueling.
Before refueling the vehi-
cle
WARNING
■When refueling the vehicle
Observe the following precautions
while refueling the vehicle. Failure
to do so may result in death or
serious injury.
●After exiting the vehicle and
before opening the fuel door,
touch an unpainted metal sur-
face to discharge any static
electricity. It is important to dis-
charge static electricity before
refueling because sparks result-
ing from static electricity can
cause fuel vapors to ignite while
refueling.
●Always hold the grips on the
fuel tank cap and turn it slowly
to remove it.
A whooshing sound may be
heard when the fuel tank cap is
loosened. Wait until the sound
cannot be heard before fully
removing the cap. In hot
weather, pressurized fuel may
spray out of the filler neck and
cause injury.
●Do not allow anyone that has
not discharged static electricity
from their body to come close to
an open fuel tank.
●Do not inhale vaporized fuel.
Fuel contains substances that
are harmful if inhaled.
●Do not smoke while refueling
the vehicle.
Doing so may cause the fuel to
ignite and cause a fire.
●Do not return to the vehicle or
touch any person or object that
is statically charged. This may
cause static electricity to build
up, resulting in a possible igni-
tion hazard.
■When refueling
Observe the following precautions
to prevent fuel overflowing from
the fuel tank:
●Securely insert the fuel nozzle
into the fuel filler neck.
●Stop filling the tank after the fuel
nozzle automatically clicks off.

2805-4. Refueling
1Press the opener switch to
open the fuel filler door.
The fuel filler door will open within
about 10 seconds of the switch
being pressed. Before refueling is possible, a message will be shown
on the multi-information display in
the instrument clus
ter to indicate
the progress of the fuel filler door
opener.
2 Turn the fuel tank cap slowly
to open and hang it on the
back of holder on the fuel
filler door.
■If the fuel filler door cannot be
opened
Consult your Toyota dealer.
After refueling, turn the fuel tank
cap until you hear a click. Once
the cap is released, it will turn
slightly in the opposite direction.
WARNING
●Do not top off the fuel tank.
NOTICE
■Refueling
●Finish refueling within 30 min-
utes. If more than 30 minutes
passes, the internal valve
closes. In this condition, fuel
may overflow during the refuel-
ing process. Press the fuel filler
door opener switch again.
●Make sure that the fuel filler
door lock is not pushed by the
fuel nozzle boot, etc. If the lock
is held, the internal valve closes
and fuel may overflow. To pre-
vent it, press the fuel filler door
opener switch again.
●Do not spill fuel during refueling.
Doing so may damage the vehi-
cle, such as causing the emis-
sion control system to operate
abnormally or damaging fuel
system components or the vehi-
cle’s painted surface.
■Notice about fuel
 P.86
Opening the fuel tank cap
Closing the fuel tank cap