Content .. 20 21 22 23 ..

Toyota Sienna (2019 year). Instruction - part 22

SIENNA_OM_OM08025U_(U)

337

5-1. Using the air conditioning system and defogger

rior

ures

Location of air outlets
The air outlets and air volume
changes according to the
selected air flow mode.

Adjusting the air flow direction and opening/closing the air
outlets

Turn the knob to open or close the vent.
Direct air flow to the left or right, up or down.

Air outlets



Center outlets



Right and left side outlets

1
2

338

5-1. Using the air conditioning system and defogger

SIENNA_OM_OM08025U_(U)

Using automatic mode
Fan speed is adjusted automatically according to the temperature setting and
the ambient conditions.
Therefore, the fan may stop for a while until warm or cool air is ready to flow
immediately after

is pressed.

When the outside temperature exceeds 75°F (24°C) and the air condition-
ing system is on

In order to reduce the air conditioning power consumption, the air condition-
ing system may switch to recirculated air mode automatically.
This may also reduce fuel consumption.

Recirculated air mode is selected as a default mode when the engine switch
is turned to the “ON” position (vehicles without a smart key system) or
IGNITION ON mode (vehicles with a smart key system).

It is possible to switch to outside air mode at any time by pressing

Fogging up of the windows

The windows will easily fog up when the humidity in the vehicle is high.
Pressing

on will dehumidify the air from the outlets and defog the

windshield effectively.

If you turn “A/C” off, the windows may fog up more easily.

The windows may fog up if the recirculated air mode is used.

Outside/recirculated air mode

When driving on dusty roads such as tunnels or in heavy traffic, set
to the recirculated air mode. This is effective in preventing outside air from
entering the vehicle interior. During cooling operation, setting the recircu-
lated air mode will also cool the vehicle interior effectively.

Outside/recirculated air mode may automatically switch depending on the
temperature setting or the inside temperature.

SIENNA_OM_OM08025U_(U)

339

5-1. Using the air conditioning system and defogger

rior

ures

Temperature display
The temperature display on the multi-information display can be changed.
(

P. 540)

When

is selected for the air outlets used

For your driving comfort, air flowing to the feet may be warmer than air flow-
ing to the upper body depending on the temperature setting.

When the outside temperature is low
The dehumidification function may not operate even when

is pressed.

When “A/C ON” flashes in the display
Press

and turn off the air conditioning system before turning it on once

more. There may be a problem in the air conditioning system if “A/C ON” con-
tinues to flash. Turn the air conditioning system off and have it inspected by
your Toyota dealer.

Ventilation and air conditioning odors

To let fresh air in, set the air conditioning system to the outside air mode.

During use, various odors from inside and outside the vehicle may enter into
and accumulate in the air conditioning system. This may then cause odor to
be emitted from the vents.

To reduce potential odors from occurring:
• It is recommended that the air conditioning system be set to outside air

mode prior to turning the vehicle off.

• The start timing of the blower may be delayed for a short period of time

immediately after the air conditioning system is started in automatic
mode.

Air conditioning filter
P. 434

Customization
Settings (e.g.

linked operation) can be changed.

(Customizable features:

P. 546)

340

5-1. Using the air conditioning system and defogger

SIENNA_OM_OM08025U_(U)

WARNING

To prevent the windshield from fogging up

Do not use

during cool air operation in extremely humid weather.

The difference between the temperature of the outside air and that of the
windshield can cause the outer surface of the windshield to fog up, block-
ing your vision.

To prevent burns

Do not touch the rear view mirror surfaces when the outside rear view mir-
ror defoggers (vehicles with outside rear view mirror defoggers) are on.

Do not touch the glass at lower part of the windshield or to the side of the
front pillars when the windshield wiper de-icer is on. (vehicles with wind-
shield wiper de-icer)

NOTICE

To prevent battery discharge
Do not leave the air conditioning system on longer than necessary when the
engine is stopped.

Do not place anything on the instrument
panel  which  may  cover  the  air  outlets.
Otherwise,  air  flow  may  be  obstructed,
preventing  the  windshield  defoggers
from defogging.

341

SIENNA_OM_OM08025U_(U)

5-1. Using the air conditioning system and defogger

rior

ures

Rear automatic air conditioning system

Adjusting the temperature setting
Press “

” on the “TEMP” button to increase the temperature and “”

to decrease the temperature.

Adjusting the fan speed

Press “

” on

to increase the fan speed and “

” to decrease

the fan speed.

Press the “OFF” button to turn the fan off.

Airflow and outlets are automatically adjusted according to the
temperature setting.

Air conditioning controls

342

5-1. Using the air conditioning system and defogger

SIENNA_OM_OM08025U_(U)

Changing the air outlets
Press the “MODE” button.

The air flow mode switch each time the button is pressed.

Air flows to the upper body.
Air flows to the upper body
and feet.
Air flows to the feet.

Press the “AUTO” button (“AUTO” appears on the display).
Adjust the temperature setting.
To stop the operation, press the “OFF” button.

Automatic mode indicator
If the fan speed setting or air flow modes are operated, the auto-
matic mode indicator goes off. However, automatic mode for func-
tions other than that operated is maintained.

Location of air outlets
The air outlets and air volume
changes according to the
selected air flow mode.

1
2

Using automatic mode

Air outlets

SIENNA_OM_OM08025U_(U)

343

5-1. Using the air conditioning system and defogger

rior

ures

Adjusting the position of the air outlets
Direct air flow to the front or
rear, up or down.

Temperature display
The temperature display on the multi-information display can be changed.
(

P. 540)

When the front air conditioning system is in simultaneous mode
The lower side indicator on the “SYNC” button is on. The rear air conditioning
system controls will continue to function. (

P. 332)

NOTICE

To prevent battery discharge
Do not leave the air conditioning system on longer than necessary when the
engine is stopped.

344

SIENNA_OM_OM08025U_(U)

5-1. Using the air conditioning system and defogger

Heated steering wheel



/seat heaters



: If equipped

Heated steering wheel and seat heaters heat the side grips of the
steering wheel and seats, respectively.

WARNING

Care should be taken to prevent injury if anyone in the following categories
comes in contact with the steering wheel and seats when the heater is on:
• Babies, small children, the elderly, the sick and the physically chal-

lenged

• Persons with sensitive skin
• Persons who are fatigued
• Persons who have taken alcohol or drugs that induce sleep (sleeping

drugs, cold remedies, etc.)

Observe the following precautions to prevent minor burns or overheating:
• Do not cover the seat with a blanket or cushion when using the seat

heater.

• Do not use seat heater more than necessary.

NOTICE

Do not put heavy objects that have an uneven surface on the seat and do
not stick sharp objects (needles, nails, etc.) into the seat.

To prevent battery discharge, do not use the functions when the engine is
not running.

SIENNA_OM_OM08025U_(U)

345

5-1. Using the air conditioning system and defogger

rior

ures

Turns the heated steering wheel
on/off

The indicator light comes on when
the heated steering wheel is oper-
ating.

The heated steering wheel can be used when the engine switch is in IGNI-
TION ON mode.

The heated steering wheel will automatically turn off after about 30 minutes.

Heated steering wheel

346

5-1. Using the air conditioning system and defogger

SIENNA_OM_OM08025U_(U)

For driver’s seat
For front passenger’s seat
On

The indicator light comes on.

Adjusts the seat temperature

The further you move the dial
upward, the warmer the seat
becomes.

The seat heaters can be used when the engine switch is in the “ON” position
(vehicles without a smart key system) or IGNITION ON mode (vehicles with
a smart key system).

When not in use, move the dial fully downward. The indicator light turns off.

Seat heaters

1
2
3

347

SIENNA_OM_OM08025U_(U)

5-2. Using the interior lights

rior

ures

Interior lights list

Rear personal/interior lights (if equipped) (

P. 348)

Rear ceiling lights (if equipped) (

P. 349)

Front personal/interior lights (

P. 348)

Engine switch light
Front door courtesy lights (if equipped)
Outer foot lights (if equipped)

1
2
3
4
5
6

348

SIENNA_OM_OM08025U_(U)

5-2. Using the interior lights

Turns the lights on
Turns the door position on
Turns the lights off

Front
Turns the light on/off

Rear (if equipped)
Turns the light on/off

When the personal/interior light main switch is in the off position, the
rear personal lights will not turn on even if the switch is on.

Personal/interior light main switch

1
2
3

Personal/interior lights



Type A



Type B

SIENNA_OM_OM08025U_(U)

349

5-2. Using the interior lights

rior

ures

Turns the lights on/off

When  the  personal/interior  light
main  switch  is  in  the  off  position,
the  rear  ceiling  lights  will  not  turn
on even if the switch is on.

Adjusting the rear personal/interior lights angle (if equipped)

Illuminated entry system



Vehicles without a smart key system

The lights automatically turn on/off according to the engine switch position,
whether the doors are locked/ unlocked, and whether the doors are open/
closed.



Vehicles with a smart key system

The lights automatically turn on/off according to engine switch mode, the
presence of the electronic key, whether the doors are locked/unlocked, and
whether the doors are open/closed.

To prevent battery discharge
If the interior lights remain on when the engine switch is turned off, the lights
will go off automatically after 20 minutes.

Customization
Settings (e.g. the time elapsed before lights turn off) can be changed.
(Customizable features:

P. 547)

Rear ceiling lights (if equipped)

Push the edge of the light lens.

NOTICE

Rear ceiling lights (if equipped)
Do not hang anything on the gap between the ceiling light cover and the
ceiling or pull the ceiling light cover strongly.
Doing so may cause damage.

350

SIENNA_OM_OM08025U_(U)

5-3. Using the storage features

List of storage features

Auxiliary boxes (

P. 358)

Cup holders (

P. 354)

Door pockets (

P. 357)

Bottle holders (

P. 356)

Glove boxes (

P. 351)

Console box (if equipped)
(

P. 352)

WARNING

Do not leave glasses, lighters or spray cans in the storage spaces, as this
may cause the following when cabin temperature becomes high:
• Glasses may be deformed by heat or cracked if they come into contact

with other stored items.

• Lighters or spray cans may explode. If they come into contact with other

stored items, the lighter may catch fire or the spray can may release
gas, causing a fire hazard.

When driving or when the storage compartments are not in use, keep the
lids closed.
In the event of sudden braking or sudden swerving, an accident may occur
due to an occupant being struck by an open lid or the items stored inside.

1
2
3

4
5
6

SIENNA_OM_OM08025U_(U)

351

5-3. Using the storage features

rior

ures



Upper glove box

Push the button.
Open the lid.



Lower glove box

The lower glove box can be opened by pulling the lever and can be
locked and unlocked by using the master key (vehicles without a
smart key) or the mechanical key (vehicles with a smart key system).

Unlock
Lock
Open

Glove boxes

1
2

1
2
3

352

SIENNA_OM_OM08025U_(U)

5-3. Using the storage features

Press the tab.

Sliding the console box (type B)



From front



From rear

Console box light
The console box light turns on when the headlight switch is on.

Console box (if equipped)



Type A



Type B

Press the tab and slide the console box.

Pull up the lever and slide the console
box.

Content .. 20 21 22 23 ..