Toyota Sienna Hybrid (2023 year). Manual in english - page 16

256

4-3. Operating the lights and wipers

■

Switching to the low beams

Press the Automatic High Beam 
switch.

The Automatic High Beam indicator 
will turn off.
Press the switch to activate the 
Automatic High Beam system 
again.

■

Temporarily switching to 
the low beams

Pull the lever toward you and 
then return it to its original posi-
tion.

The high beams are on while the 
lever is pulled toward you, how-
ever, after the lever is returned to 
its original position, the low beams 
remain on for a certain amount of 
time. Afterwards, the Automatic 
High Beam will be activated again.

■

Temporarily switching to the 

low beams

It is recommended to switch to the 

low beams when the high beam 

may cause problems or distress to 

other drivers or pedestrians nearby.

257

4-3. Operating the lights and wipers

4

Dr

iv

ing

*

: If equipped

1

*1

 or 

*2

 Turns the 

fog lights off

2

 Turns the fog lights on

*1

:For the U.S.A.

*2

:For Canada

■

Fog lights can be used when

The parking lights are on or the 

headlights are on in low beam.

Operating the 

 lever oper-

ates the wipers or washer as fol-
lows:



Intermittent windshield wipers

1

*1

 or 

*2

 Off

2

*1

 or 

*2

 Intermittent 

operation

3

*1

 or 

*2

 Low speed 

operation

Fog light switch

*

The fog lights offer 
improved visibility in diffi-
cult driving conditions, 
such as in rain and fog.

Operating procedure

NOTICE

■

To prevent 12-volt battery dis-

charge

Do not leave the lights on longer 

than necessary when the hybrid 

system is off.

Windshield wipers and 

washer

Operating the lever can 
switch between automatic 
operation and manual oper-
ation, or can use the 
washer.

NOTICE

■

When the windshield is dry

Do not use the wipers, as they 

may damage the windshield.

Operating the wiper lever

258

4-3. Operating the lights and wipers

4

*1

 or 

*2

 High speed 

operation

5

*1

 or 

*2

 Temporary 

operation

*1

:For the U.S.A.

*2

:For Canada

If equipped, wiper intervals can 
be adjusted when intermittent 
operation is selected.

6

Increases the intermittent 
windshield wiper frequency

7

Decreases the intermittent 
windshield wiper frequency

8

 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.



Rain-sensing windshield wip-
ers

1

*1

 or 

*2

 Off

2

 Rain-sensing opera-

tion

3

*1

 or 

*2

 Low speed 

operation

4

*1

 or 

*2

 High speed 

operation

5

*1

 or 

*2

 Temporary 

operation

*1

:For the U.S.A.

*2

:For Canada

When “AUTO” is selected, the wip-
ers 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 “AUTO” is 
selected.

259

4-3. Operating the lights and wipers

4

Dr

iv

ing

6

Increases the sensitivity

7

Decreases the sensitivity

8

 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.

■

The windshield wipers and 

washer can be operated when

The power switch is in ON.

■

Raindrop sensor (vehicles with 

rain-sensing windshield wipers)

●

The raindrop sensor judges the 

amount of raindrops.

●

If the wiper switch is turned to the 

“AUTO” position while the power 

switch is in ON, the wipers will 

operate once to show that “AUTO” 

mode is activated.

●

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 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”.

■

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.

■

Front door opening linked wind-

shield wiper stop function 

(vehicles with rain-sensing 

windshield wipers)

When “AUTO” is selected and the 

windshield wipers are operating, if a 

front door is opened, the operation 

of the windshield wipers will be 

stopped to prevent anyone entering/ 

exiting the vehicle from being 

sprayed by water from the wipers, 

provided the vehicle is stopped with 

the parking brake applied or the shift 

lever in P. When the front door is 

closed, wiper operation will resume.

260

4-3. Operating the lights and wipers

Operating the 

 switch 

operates the rear wiper as fol-
lows:

1

*1

 or 

*2

 Off

2

*1

 or 

*2

 Intermittent 

operation

3

*1

 or 

*2

 Normal oper-

ation

*1

:For the U.S.A.

*2

:For Canada

WARNING

■

Caution regarding the use of 

windshield wipers in “AUTO” 

mode (vehicles with rain-

sensing windshield wipers)

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 does 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 washer fluid tank is 

empty

Do not operate the switch continu-

ally as the washer fluid pump may 

overheat.

■

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.

Rear window wiper 

and washer

The rear window wiper and 
washer can be used by 
operating the lever.

NOTICE

■

When the rear window is dry

Do not use the wiper, as it may 

damage the rear window.

Operating the wiper lever

261

4-3. Operating the lights and wipers

4

Dr

iv

ing

4

 Washer/wiper dual 

operation

Pushing the lever operates the 
wiper and washer.
The wiper will automatically operate 
a couple of times after the washer 
squirts.
The washer will automatically oper-
ate and clean the camera for the 
Digital Rear view Mirror

*1

 (



P.194) 

and rear camera

*2

.

*1

:If equipped

*2

:Refer to “NAVIGATION AND 

MULTIMEDIA SYSTEM 
OWNER’S MANUAL”.

■

The rear window wiper and 

washer can be operated when

The power switch is in ON.

■

If no washer fluid sprays

Check that the washer nozzle is not 

blocked if there is washer fluid in the 

washer fluid reservoir.

■

Back door opening linked rear 

window wiper stop function

When the rear window wiper is 

operating, if the back door is opened 

while the vehicle is stopped, opera-

tion of the rear window wiper will be 

stopped to prevent anyone near the 

vehicle from being sprayed by water 

from the wiper. When the back door 

is closed, wiper operation will 
resume.

*

*

: The setting must be customized at 

your Toyota dealer.

■

Reverse-linked rear window 

wiper function

When the shift lever is shifted to R 

when the front wipers are operating, 

the rear window wiper will operate 

once.

■

Customization

Setting of the reverse-linked func-

tion can be changed. (Customizable 

features: 



P.546)

NOTICE

■

When the washer fluid tank is 

empty

Do not operate the switch continu-

ally as the washer fluid pump may 

overheat.

■

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 wiper on longer 

than necessary when the hybrid 

system is off.

262

4-4. Refueling

4-4.Refueling



Close all the doors and win-
dows, and turn the power 
switch to OFF.



Confirm the type of fuel.

■

Fuel types



P.526

■

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.

263

4-4. Refueling

4

Dr

iv

ing

1

Press the opener 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 cluster to indicate 

the progress of the fuel filler door 

opener.

2

Turn the fuel tank cap slowly 
to open it and put it into the 
holder on the fuel filler door.

■

If the fuel filler door cannot be 

opened



P.501

After refueling, turn the fuel tank 
cap until you hear a click. Once 
the cap is released, it will turn 

WARNING

■

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.

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.

Opening the fuel tank cap

Closing the fuel tank cap

264

4-4. Refueling

slightly in the opposite direction.

■

When “Check Fuel Cap” is dis-

played on the multi-information 

display

The fuel tank cap may be unfas-

tened or loose. Turn the power 

switch off, check the cap and tighten 

it securely. If the message remains, 

wait a few seconds and then turn 

the power switch off once again.

WARNING

■

When replacing the fuel tank 

cap

Do not use anything but a genu-

ine Toyota fuel tank cap designed 

for your vehicle. Doing so may 

cause a fire or other incident 

which may result in death or seri-

ous injury.

265

4-5. Using the driving support systems

4

Dr

iv

ing

4-5.Using the driving support systems

■

PCS (Pre-Collision System)



P.270

■

LTA (Lane Tracing Assist)



P.278

■

AHB (Automatic High 
Beam)



P.253

■

RSA (Road Sign Assist) (if 
equipped)



P.288

■

Dynamic radar cruise con-
trol with full-speed range



P.291

Two types of sensors, located 
behind the front grille and wind-
shield, detect information neces-
sary to operate the drive assist 
systems.

Radar sensor

Front camera

Toyota Safety Sense 

2.0

The Toyota Safety Sense 
2.0 consists of the following 
drive assist systems and 
contributes to a safe and 
comfortable driving experi-
ence:

Driving assist system

WARNING

■

Toyota Safety Sense 2.0

The Toyota Safety Sense 2.0 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 condi-

tions.

As there is a limit to the degree of 

recognition accuracy and control 

performance that this system can 

provide, do not overly rely on this 

system. The driver is always 

responsible for paying attention to 

the vehicle’s surroundings and 

driving safely.

Sensors

A

B

266

4-5. Using the driving support systems

WARNING

■

To avoid malfunction of the 

radar sensor

Observe the following precau-

tions.

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.

Radar sensor

Radar sensor cover

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

●

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 sub-

jected to a strong impact, have 

the vehicle inspected by your 

Toyota dealer.

A

B

●

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 your Toyota dealer for 

details.

• When the radar sensor or front 

grille are removed and installed, 

or replaced

• When the front bumper is 

replaced

■

To avoid malfunction of the 

front camera

Observe the following precau-

tions.

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 cov-

ered 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 necessary 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 wind-

shield where the front camera is 

installed is dirty, contact your 

Toyota dealer.

267

4-5. Using the driving support systems

4

Dr

iv

ing

WARNING

●

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 

illustration).

From the top of the windshield 
to approximately 0.4 in. (1 cm) 
below the bottom of the front 
camera

Approximately 7.9 in. (20 cm) 
(Approximately 4.0 in. [10 cm] 
to the right and left from the 
center of the front camera)

●

If the part of the windshield in 

front of the front camera is 

fogged up or covered with con-

densation, or ice, use the wind-

shield defogger to remove the 

fog, condensation, or ice. 

(



P.349)

●

If water droplets cannot be 

properly removed from the area 

of the windshield 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 recali-

brated. Contact your Toyota 

dealer for details.

A

B

●

Do not allow liquids to contact 

the front camera.

●

Do not allow bright lights to 

shine into the front camera.

●

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 your Toyota dealer.

●

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 your 

Toyota dealer 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.

268

4-5. Using the driving support systems

■

If a warning message is displayed on the multi-information display

A system may be temporarily unavailable or there may be a malfunction in 

the system.

●

In the following situations, perform the actions specified in the table. When 

the normal operating conditions are detected, the message will disappear 

and the system will become operational.

If the message does not disappear, contact your Toyota dealer.

●

In the following situations, if the situation has changed (or the vehicle has 

been driven for some time) and the normal operating conditions are 

detected, the message will disappear and the system will become opera-

Situation

Actions

When the area around a camera is 
covered with dirt, moisture (fogged 
up, covered with condensation, ice, 
etc.), or other foreign matter

Using the wiper and A/C function, 
remove the dirt and other attached 
matter. (



P.349)

When the temperature around the 
front camera is outside of the opera-
tional range, such as when the vehi-
cle is in the sun or in an extremely 
cold environment

If the front camera is hot, such as 
after the vehicle had been parked in 
the sun, use the air conditioning sys-
tem to decrease the temperature 
around the front camera.
If a sunshade was used when the 
vehicle was parked, depending on its 
type, the sunlight reflected from the 
surface of the sunshade may cause 
the temperature of the front camera 
to become excessively high.

If the front camera is cold, such as 
after the vehicle is parked in an 
extremely cold environment, use the 
air conditioning system to increase 
the temperature around the front 
camera.

The area in front of the front camera 
is obstructed, such as when the 
hood is open or a sticker is attached 
to the part of the windshield in front 
of the front camera.

Close the hood, remove the sticker, 
etc. to clear the obstruction.

When “Pre-Collision System 
Unavailable” is displayed.

Check whether there is attached 
materials on the radar sensor and 
radar sensor cover, and if there is, 
remove it.

269

4-5. Using the driving support systems

4

Dr

iv

ing

tional.

If the message does not disappear, contact your Toyota dealer.

• When the temperature around the radar sensor is outside of the opera-

tional range, such as when the vehicle is in the sun or in an extremely cold 

environment

• When the front camera cannot detect objects in front of the vehicle, such 

as when driving in the dark, snow, or fog, or when bright lights are shining 

into the front camera

• Depending on the conditions in the vicinity of the vehicle, the radar may 

judge the surrounding environment can not be properly recognized. In that 

case, “Pre-Collision System Unavailable” is displayed.

270

4-5. Using the driving support systems

The system can detect the fol-
lowing:



Vehicles



Bicyclists



Pedestrians

■

Pre-collision warning

When the system determines 
that the possibility of a frontal 
collision is high, a buzzer will 
sound and a warning message 
will be displayed on the multi-
information display to urge the 
driver to take evasive action.

■

Pre-collision brake assist

When the system determines 
that the possibility of a frontal 
collision is high, the system 
applies greater braking force in 
relation to how strongly the 
brake pedal is depressed.

■

Pre-collision braking

If the system determines that 
the possibility of a frontal colli-
sion is extremely high, the 
brakes are automatically applied 
to help avoid the collision or 
reduce the impact of the colli-
sion.

PCS (Pre-Collision Sys-

tem)

The pre-collision system 
uses a radar sensor and 
front camera to detect 
objects (



P.270) in front of 

the vehicle. When the sys-
tem determines that the 
possibility of a frontal colli-
sion with an object is high, 
a warning operates to urge 
the driver to take evasive 
action and the potential 
brake pressure is increased 
to help the driver avoid the 
collision. If the system 
determines that the possi-
bility of a frontal collision 
with an object is extremely 
high, the brakes are auto-
matically applied to help 
avoid the collision or help 
reduce the impact of the 
collision.

The pre-collision system can 
be disabled/enabled and the 
warning timing can be 
changed. (



P.272)

Detectable objects

System functions

271

4-5. Using the driving support systems

4

Dr

iv

ing

WARNING

■

Limitations of the pre-colli-

sion system

●

The driver is solely responsible 

for safe driving. Always drive 

safely, taking care to observe 

your surroundings. 

Do not use the pre-collision sys-

tem instead of normal braking 

operations under any circum-

stances. This system will not 

prevent collisions or lessen col-

lision damage or injury in every 

situation. Do not overly rely on 

this system. Failure to do so 

may lead to an accident, result-

ing in death or serious injury.

●

Although this system is 

designed to help avoid a colli-

sion or help reduce the impact 

of the collision, its effectiveness 

may change according to vari-

ous conditions, therefore the 

system may not always be able 

to achieve the same level of 

performance. 

Read the following conditions 

carefully. Do not overly rely on 

this system and always drive 

carefully.

• Conditions under which the sys-

tem may operate even if there is 

no possibility of a collision: 



P.274

• Conditions under which the sys-

tem may not operate properly: 



P.275

●

Do not attempt to test the oper-

ation of the pre-collision system 

yourself.

Depending on the objects used 

for testing (dummies, card-

board objects imitating detect-

able objects, etc.), the system 

may not operate properly, pos-

sibly leading to an accident.

■

Pre-collision braking

●

When the pre-collision braking 

function is operating, a large 

amount of braking force will be 

applied.

●

If the vehicle is stopped by the 

operation of the pre-collision 

braking function, the pre-colli-

sion braking function operation 

will be canceled after approxi-

mately 2 seconds. Depress the 

brake pedal as necessary.

●

The pre-collision braking func-

tion may not operate if certain 

operations are performed by the 

driver. If the accelerator pedal is 

being depressed strongly or the 

steering wheel is being turned, 

the system may determine that 

the driver is taking evasive 

action and possibly prevent the 

pre-collision braking function 

from operating.

●

In some situations, while the 

pre-collision braking function is 

operating, operation of the func-

tion may be canceled if the 

accelerator pedal is depressed 

strongly or the steering wheel is 

turned and the system deter-

mines that the driver is taking 

evasive action.

●

If the brake pedal is being 

depressed, the system may 

determine that the driver is tak-

ing evasive action and possibly 

delay the operation timing of the 

pre-collision braking function.

■

When to disable the pre-colli-

sion system

In the following situations, disable 

the system, as it may not operate 

properly, possibly leading to an 

accident resulting in death or seri-

ous injury:

●

When the vehicle is being towed