2021 TOYOTA SIENNA HYBRID seats

3555-1. Using the air conditioning system and defogger
5
Interior features
The air conditioning system can
be switched between the indi-
vidual and synchronous modes.
The mode switches each time
the “SYNC” switch is operated
on the air conditioning operation
panel or the “SYNC” is selected
on the control screen.
Vehicles with “3-ZONE” mode
 In the individual mode, the
temperature for the driver,
front passenger, and rear
seats can be adjusted sepa-
rately.
 In the synchronous mode, the
driver’s side temperature con-
trol switch can be used to
adjust the temperature for the
driver, front passenger, and
rear seats.
• To adjust the temperature for the
front passenger seat separately
from other seats: operate the
front passenger’s side tempera-
ture control switch. (The “SYNC”
of “PASSSYNC” display disap-
pears)
• To adjust the temperature for the rear seats separately from the
front seats: when the synchro-
nous mode is on , operate the
“REAR” switch. Then, operate the
driver’s side or front passenger’s
side temperature control switch
upwards to increase the rear
seats temperature and down- wards to decrease the rear seats
temperature. (The “SYNC” of
“REAR SYNC” display on the
front air conditioning operation
panel and “SYNC” display on the
rear air conditioning operation
panel disappear)
Vehicles with “4-ZONE” mode
 In the individual mode, the
temperature for the driver,
front passenger, left-hand
side rear seats, and right-
hand side rear seats can be
adjusted separately by the
corresponding temperature
control switch on the front and
rear air conditioning operation
panels.
 In the synchronous mode, the
driver’s side temperature con-
trol switch can be used to
adjust the temperature for the
driver, front passenger, left-
hand side rear seats, and
right-hand side rear seats.
• To adjust the temperature for the
front passenger s eat separately
from other seats: operate the
front passenger’s side tempera-
ture control switch. (The “SYNC”
of “PASSSYNC” display disap-
pears)
• To adjust the temperature for the rear seats separately from the
front seats: when the synchro-
nous mode is on, operate the
“REAR” switch. Then, operate the
driver’s side temperature control
switch upwards to increase the
rear seats temperature and
downwards to decrease the rear
Switching between the
individual and synchro-
nous modes

3565-1. Using the air conditioning system and defogger
seats temperature. (The “SYNC”
of “REAR SYNC” display on the
front air conditioning operation
panel disappears)
To adjust the temperature for the
right-hand side rear seats sepa-
rately from the left-hand side rear
seats, operate the passenger’s
side temperature control switch.
(The “SYNC” of “RIGHT SYNC”
display on the rear air condition-
ing operation panel disappears)
• To adjust the temperature for the driver’s seat and passenger’s
seat separately from the rear
seats: when the synchronous
mode is on, operate the passen-
ger’s side temperature control
switch to adjust t he front passen-
ger’s seat temperature. Then
operate the “REAR” switch, and
operate the driver’s side tempera-
ture control switch to adjust the
rear seats temperature. (The
“SYNC” of “REAR SYNC” display
and the “SYNC” of “PASSSYNC”
display on the front air condition-
ing operation panel disappear)
To adjust the temp erature for the
driver’s seat, operate the “REAR”
switch again and operate driver’s
side temperature switch.
Operate the “REAR” switch.
The modes between the rear air
conditioning system and the front
air conditioning system switches
each time the “REAR” switch is
operated.
The air conditioning system switches between
individual and
synchronous modes each time the
“SYNC” switch is operated.
(  P.355)
If the system is left untouched for
approximately 6 seconds after
changing to the rear air condition-
ing system, the control mode in the
front control pane l returns to the
front.
 Adjusting the temperature
setting
Vehicles with “3-ZONE” mode
Operate the driver’s or passen-
ger’s side temperature control
switch upwards to increase the
temperature and operate the
switch downwards to decrease
the temperature.
Vehicles with “4-ZONE” mode
Operate the passenger’s side
temperature control switch to
adjust the right-hand rear seats
temperature, and operate the
driver’s side temperature control
switch to adjust the left-hand
side rear seats temperature.
Operate the temperature con-
trol switch upwards to increase
the temperature and operate the
switch downwards to decrease
the temperature.
 Fan speed setting
Operate the fan speed control
switch upwards to i ncrease the fan
speed and downwards to decrease
the fan speed.
Touch the “OFF” swit ch to turn the
fan off.
Changing the rear seat
settings (if equipped)

3585-1. Using the air conditioning system and defogger
“AUTO” switch (automatic mode)
“OFF” switch
Left-hand side temperature control switch
Right-hand side temperature control switch (if equipped)
Fan speed control switch
Airflow mode control switch
■Adjusting the temperature
setting
Vehicles with “3-ZONE” mode
In the individual mode, operate
the temperature control switch
upwards to increase the rear
seats temperature and down-
wards to decrease the rear
seats temperature.
To change to the synchronous
mode from the individual mode,
press the “OFF” switch and then
press the “AUTO” switch.
Vehicles with “4-ZONE” mode
To adjust the temperature for
the left-hand side rear seats and
right-hand side rear seats
together, operate the rear left-
hand side temperature control
switch upwards to increase the
temperature and downwards to
decrease the temperature.
To adjust the temperature for
the right-hand side rear seats
separately from the left-hand
side rear seats, operate the
right-hand side temperature
control switch. Then, operate
Rear automatic ai r conditioning system
Air outlets and fan speed are automatically adjusted accord-
ing to the temperature setting.
Air conditioning controls
A
B
C
D
E
F

3595-1. Using the air conditioning system and defogger
5
Interior features
the left-hand side temperature
control switch to adjust the left-
hand rear seats. (The “SYNC” of
“RIGHT SYNC” display on the
rear air conditioning operation
panel disappears)
To change to the synchronous
mode from the individual mode,
press the “OFF” switch and then
press the “AUTO” switch.
■Adjusting the fan speed set-
ting
Operate the fan speed control
switch upwards to increase the
fan speed and downwards to
decrease the fan speed.
Press the “OFF” switch to turn off
the fan.
■Change the airflow mode
Press the airflow mode control
switch.
The airflow mode changes as fol-
lows each time the switch is
pressed.
1 Upper body
2 Upper body and feet 3
Feet
■Ventilation and air conditioning
odors
●During use, various odors from
inside the vehicle may enter into
and accumulate in the air condi-
tioning system. This may then
cause odor to be emitted from the
vents.
●To reduce potential odors from
occurring: 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.
1Press the “AUTO” switch.
(“AUTO” appears on the dis-
play)
The dehumidification function
begins to operate. Air outlets and
fan speed are automatically
adjusted according to the tempera-
ture setting.
2 Adjust the temperature set-
ting.
3 To stop the operation, press
the “OFF” switch.
If the fan speed se tting or air flow
modes are operated, the automatic
mode indicator goes off. However,
automatic mode for functions other
than that operated is maintained.
MODE
NOTICE
■To prevent 12-volt battery dis-
charge
Do not leave the rear air condi-
tioning system on longer than
necessary when the engine is not
running.
Using the automatic mode

3615-1. Using the air conditioning system and defogger
5
Interior features
*: If equipped
Turns the heated steering wheel
on/off
The indicator light comes on when
the heated steering wheel is oper-
ating.
■Operation condition
The power switch is in ON.
Each time the switch is pressed,
the operation condition changes
as follows.
Hi (3 segments lit)  Mid (2
segments lit)  Lo (1 segment
Heated steering
wheel*/seat heat-
ers*/seat ventilators*
 Heated steering wheel
Warm up the grip of the steer-
ing wheel
 Seat heaters
Warm up the seat upholstery
 Seat ventilators
Maintain good ventilation by
sucking air through the seat
upholstery
WARNING
■To prevent minor burn inju-
ries
Care should be taken if anyone in
the following categories comes in
contact with the steering wheel or
seats when the heater is on:
●Babies, small children, the
elderly, the sick and the physi-
cally challenged
●Persons with sensitive skin
●Persons who are fatigued
●Persons who have taken alco-
hol or drugs that induce sleep
(sleeping drugs, cold remedies,
etc.)
NOTICE
■To prevent damage to the
seat heaters and seat ventila-
tors
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 12-volt battery dis-
charge
Do not use the functions when the
hybrid system is off.
Heated steering wheel
Operating the seat heat-
ers

3625-1. Using the air conditioning system and defogger
lit)  Off
The level indicato r lights up during
operation.
Front
Rear (second outboard seats)
(if equipped)
■Operation condition
The power swit ch is in ON. Each time the switch is pressed,
the operation condition changes as
follows.
Hi (3 segments lit)
 Mid (2 seg-
ments lit)  Lo (1 segment lit) 
Off
The level indicato r lights up during
operation.
■Operation condition
The power switch is in ON.
■Air conditioning system-linked
control mode
When a seat ventilator is set to Hi,
the fan speed of the seat ventilator
may increase according to the fan
speed of the air conditioning sys-
tem.
WARNING
■To prevent causes of over-
heating and minor burn inju-
ries
Observe the following precautions
when using a seat heater:
●Do not cover the seat with a
blanket or cushion when using
the seat heater.
●Do not use seat heater more
than necessary.
Operating the seat venti-
lators (front seats)

3685-3. Using the storage features
Console box (type A)
Console box (type B)
Open the lid.
Console box (type C)
Second seats (8-passenger
models)
Removing the second center
seat. ( P.174)
Third seats (Vehicles without
spare tire)
Also two cup holders are
installed in the right side of the
third seats.
Third seats (Vehicles with
spare tire)
Also two cup holders are
installed in the right side of the
third seats.
■Cup holder mats (Type A)
The mats can be removed.
Cup holders

3885-4. Using the other interior features
The coat hooks are provided
with the rear assist grips.
■Opening the refrigerator lid
Press the button to open.
■Turning the refrigerator
on/off
To turn the cooler mode on,
press the cooler mode switch .
When turned on, the indicator on
the switch comes on.
To turn the freeze mode on,
press the freeze mode switch .
When turned on, the indicator on
the switch comes on.
To turn the refrigerator off, press
the switch which indicator is illu-
minated.
Cooler mode switch
Freeze mode switch
■The refrigerator can be used
when
The power switch is in ON.
Coat hooks
WARNING
■Items that must not be
hanged on the hook
Do not hang coat hangers or
other hard or sharp objects on the
hook. If the SRS curtain shield air-
bags deploy, these items may
become projectiles, causing death
or serious injury.
NOTICE
■Coat hooks
●Do not hang heavy objects on
the hooks.
●When using the coat hook in the
assist grip of the second seats,
be careful not to get the hooked
object caught in the sliding
doors being opened or closed.
Refrigerator (if equipped)
A
B
A
B