Toyota Prius (2023 year). Manual in english - page 17

271

4

4-3. Operating the lights and wipers

D

riv

in

g

Windshield wipers and washer

Operating the 

 lever operates the wipers or washer as follows.



Intermittent windshield wipers with interval adjuster

Off

Intermittent operation

Low speed operation

High speed operation

Temporary operation

Wiper intervals can be adjusted when intermittent operation is
selected.

Increases the intermittent wind-
shield wiper frequency 
Decreases the intermittent
windshield wiper frequency

Washer/wiper dual
operation

Pulling the lever operates the wip-
ers and washer.
The wipers will automatically oper-
ate a couple of times after the
washer squirts.

Operating the wiper lever

1

2

3

4

5

6

7

8

272

4-3. Operating the lights and wipers



Rain-sensing windshield wipers

Off

Rain-sensing operation

Low speed operation

High speed operation

Temporary operation 

When 

 is selected, the wipers

will operate automatically when the
sensor detects falling rain. The
system automatically adjusts wiper
timing in accordance with rain vol-
ume and vehicle speed.

The sensor sensitivity can be adjusted when 

 is selected.

Increases the sensitivity
Decreases the sensitivity

Washer/wiper dual
operation

Pulling the lever operates the wip-
ers and washer.
The wipers will automatically oper-
ate a couple of times after the
washer squirts.

1

2

3

4

5

6
7

8

273

4-3. Operating the lights and wipers

4

D

riv

in

g

■

The windshield wipers and washer can be operated when

The power switch is in ON mode.

■

Dripping prevention wiper sweep (vehicles with rain-sensing windshield
wipers)

After washing and wiping operation several times, the wipers operate one
more time after a short delay to prevent dripping. However, this function will
not operate while driving.

■

Raindrop sensor (vehicles with rain-sensing windshield wipers)

●

If the wiper switch is turned to the 

 position while the power switch is in

ON mode, the wipers will operate once to show that AUTO mode is acti-
vated.

●

If the wiper sensitivity is adjusted to higher, the wiper may operate once to
indicate the change of sensitivity.

●

If the temperature of the raindrop sensor is 85



C (185



F) or higher, or 

-15°C

(5°F) or lower, automatic operation may not occur. In this case, operate the
wipers in any mode other than AUTO mode.

■

If no windshield washer fluid sprays

Check that the washer nozzles are not blocked if there is washer fluid in the
washer fluid tank.

■

Customization

Settings of AUTO mode operation can be changed. (Customizable features:



P. 670)

●

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.

274

4-3. Operating the lights and wipers

WARNING

■

Caution regarding the use of windshield wipers in AUTO mode (vehi-
cles with rain-sensing windshield wipers)

The windshield wipers may operate unexpectedly if the sensor is touched or
the windshield is subject to vibration in AUTO mode. Take care that your fin-
gers etc. do not become caught in the windshield wipers.

■

Caution regarding the use of 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 windshield is dry

Do not use the wipers, as they may damage the windshield.

■

When the washer fluid tank is empty

Do not operate the switch continually as the washer fluid pump may over-
heat.

■

When a nozzle becomes blocked

In this case, contact any authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer.
Do not try to clear it with a pin or other object. The nozzle will be damaged.

■

To prevent 12-volt battery discharge

Do not leave the wipers on longer than necessary when the hybrid system
is off.

275

4

4-3. Operating the lights and wipers

D

riv

in

g

Rear window wiper and washer

Operating the 

 switch operates the rear wiper as follows:

Off

Intermittent operation

Normal operation

Washer/wiper dual
operation

Pushing the lever operates the
wiper and washer.

Operating the wiper lever

1

2

3

4

276

4-3. Operating the lights and wipers

■

The rear window wiper and washer can be operated when

The power switch is in ON mode.

■

If no washer fluid sprays

Check that the washer nozzle is not blocked if there is washer fluid in the
washer fluid tank.

NOTICE

■

When the rear window is dry

Do not use the wiper, as it may damage the rear window.

■

When the washer fluid tank is empty

Do not operate the switch continually as the washer fluid pump may over-
heat.

■

When a nozzle becomes blocked

In this case, contact any authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer.
Do not try to clear it with a pin or other object. The nozzle will be damaged.

■

To prevent 12-volt battery discharge

Do not leave the wiper on longer than necessary when the hybrid system is
off.

277

4

4-4. Refueling

D

riv

in

g

Opening the fuel tank cap

●

Turn the power switch off and ensure that all the doors and win-
dows are closed.

●

Confirm the type of fuel.

■

Fuel types



P. 668

■

Fuel tank opening for unleaded gasoline

To help prevent incorrect fueling, your vehicle has a fuel tank opening that
only accommodates the special nozzle on unleaded fuel pumps.

■

Gasoline price setting screen (if equipped)

After refueling more than approximately 5 L (1.3 gal., 1.1 Imp.gal.) and turn-
ing the power switch to ON mode, the gasoline price setting screen will be
automatically displayed on the multi-information display. (



P. 104)

Perform the following steps to open the fuel tank cap:

Before refueling the vehicle

278

4-4. Refueling

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 surface to discharge any static electricity. It is important to
discharge static electricity before refueling because sparks resulting 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 ignition
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.

●

Do not top off the fuel tank.

279

4-4. Refueling

4

D

riv

in

g

Press the opener to open the
fuel filler door.

Turn the fuel tank cap slowly to
open and hang it on the back of
the fuel filler door.

NOTICE

■

Refueling

Do not spill fuel during refueling. 
Doing so may damage the vehicle, such as causing the emission control
system to operate abnormally or damaging fuel system components or the
vehicle’s painted surface.

Opening the fuel tank cap

1

2

280

4-4. Refueling

■

When the fuel filler door cannot be opened by pressing the inside switch

Open the back door and remove the
cover underneath the luggage compart-
ment light.

Pull the lever backward and check that
the fuel lid opens.

1

2

281

4-4. Refueling

4

D

riv

in

g

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.

Closing the fuel tank cap

WARNING

■

When replacing the fuel tank cap

Do not use anything but a genuine Toyota fuel tank cap designed for your
vehicle. Doing so may cause a fire or other incident which may result in
death or serious injury.

282

4-5. Using the driving support systems

Toyota Safety Sense



◆

PCS (Pre-Collision System)





P. 296

◆

LTA (Lane Tracing Assist)





P. 307

◆

AHB (Automatic High Beam)





P. 266

◆

RSA (Road Sign Assist)





P. 323

◆

Dynamic radar cruise control with full-speed range





P. 329



: If equipped

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.

283

4-5. Using the driving support systems

4

D

riv

in

g

Two types of sensors, located behind the front grille and windshield,
detect information necessary to operate the drive assist systems.

Radar sensor
Front camera

Sensors

1
2

284

4-5. Using the driving support systems

WARNING

■

To avoid malfunction of the radar sensor

Observe the following precautions. 
Otherwise, the radar sensor may not operate properly, possibly leading to
an accident resulting in death or serious injury.

●

Keep the radar sensor and the radar sensor cover clean at all times.

●

Do not attach accessories, stickers (including transparent stickers) or
other items to the radar sensor, radar sensor cover or surrounding area.

●

Do not subject the radar sensor or its surrounding area to a strong impact. 
If the radar sensor, front grille, or front bumper has been subjected to a
strong impact, have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer.

●

Do not disassemble the radar sensor.

●

Do not modify or paint the radar sensor or radar sensor cover.

●

In the following cases, the radar sensor must be recalibrated. Contact any
authorized Toyota retailer or Toyota authorized repairer, or any reliable
repairer for details.
• When the radar sensor or front grille are removed and installed, or

replaced

• When the front bumper is replaced

Radar sensor
Radar sensor cover

If the front of the radar sensor or the
front or back of the radar sensor cover
is dirty or covered with water droplets,
snow, etc., clean it.
Clean the radar sensor and radar sen-
sor cover with a soft cloth to avoid
damaging them.

1

2

285

4-5. Using the driving support systems

4

D

riv

in

g

WARNING

■

To avoid malfunction of the front camera

Observe the following precautions.
Otherwise, the front camera may not operate properly, possibly leading to
an accident resulting in death or serious injury.

●

Keep the windshield clean at all times.
• If the windshield is dirty or covered with an oily film, water droplets,

snow, etc., clean the windshield.

• If a glass coating agent is applied to the windshield, it will still be neces-

sary to use the windshield wipers to remove water droplets, etc. from
the area of the windshield in front of the front camera.

• If the inner side of the windshield where the front camera is installed is

dirty, contact any authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer.

●

If the part of the windshield in front of the front camera is fogged up or cov-
ered with condensation, or ice, use the windshield defogger to remove the
fog, condensation, or ice. (



P. 462)

●

If water droplets cannot be properly removed from the area of the wind-
shield in front of the front camera by the windshield wipers, replace the
wiper insert or wiper blade.

●

Do not attach window tint to the windshield.

●

Replace the windshield if it is damaged or cracked. 
After replacing the windshield, the front camera must be recalibrated. Con-
tact any authorized Toyota retailer or Toyota authorized repairer, or any
reliable repairer for details.

●

Do not allow liquids to contact the front camera.

●

Do not allow bright lights to shine into the front camera.

●

Do not attach objects, such as stickers,
transparent stickers, etc., to the outer
side of the windshield in front of the
front camera (shaded area in the illus-
tration).
A: From the top of the windshield to
approximately 1 cm (0.4 in.) below the
bottom of the front camera
B: Approximately 20 cm (7.9 in.)
(Approximately 10 cm [4.0 in.] to the
right and left from the center of the front
camera)

286

4-5. Using the driving support systems

WARNING

●

Do not dirty or damage the front camera. 
When cleaning the inside of the windshield, do not allow glass cleaner to
contact the lens of the front camera. Also, do not touch the lens. 
If the lens is dirty or damaged, contact any authorized Toyota retailer or
Toyota authorized repairer, or any reliable repairer.

●

Do not subject the front camera to a strong impact.

●

Do not change the installation position or direction of the front camera or
remove it. 

●

Do not disassemble the front camera.

●

Do not modify any components of the vehicle around the front camera
(inside rear view mirror, etc.) or ceiling.

●

Do not attach any accessories to the hood, front grille or front bumper that
may obstruct the front camera. Contact any authorized Toyota retailer or
Toyota authorized repairer, or any reliable repairer for details.

●

If a surfboard or other long object is to be mounted on the roof, make sure
that it will not obstruct the front camera.

●

Do not modify the headlights or other lights.