2023 TOYOTA SIENNA HYBRID child lock

1783-3. Adjusting the seats
WARNING
●Do not allow anyone to sit on a
folded seatback or in the lug-
gage compartment while driv-
ing.
●Do not allow child ren to enter
the luggage compartment.
●Be careful not to get any part of
your body pinched by a seat.
■After returning the rear seat-
backs or installing seats
Observe the following precau-
tions. Failure to do so may result
in death or serious injury.
●Make sure the seatback is
securely locked by pushing it
forward and rearward on the
top.
●Check that the seat belts are
not twisted or caught in the
seatback. If the seat belt gets
caught between the seatback’s
securing hook and latch, the
seat belt may be damaged.
●Make sure the seat is locked in
place by trying to shake the
seatback and lift up the seat
cushion.
■After removi ng the second
center seat (8-passenger
models)
●Remove the second center seat
from the vehicle or store it
securely in the luggage com-
partment.
●Do not sit on or place anything
on a seat that has been
removed from the vehicle.
■Stowing the third seats
●Make sure that the seat path is
clear before moving the seat.
Otherwise, injury may result
from contact with, or by being
pinched by parts of the seat.
●Do not sit on the third seat when
it is in the stowed position with
the seatback upright.
NOTICE
■To prevent damage to the
seat
●Avoid putting heavy loads on a
folded seat that is being used as
a temporary table.
●Do not sit on or put heavy loads
on the second center seat that
has been removed from the
vehicle. The metal tips of the
seat leg may be damaged, pre-
venting reinstallation of the
seat.
●The second center seat must be
reinstalled in its original position
(8-passenger models). If it is
installed in the w rong position,
the seat locks or bezels will be
damaged.
●Make sure that the path the seat
will move through is clear before
stowing or returning the third
seat.
●8-passenger models: Be sure to
raise the stowed second center
seat above the outer trim, when
removing from the storage box
of the luggage room.

2033-5. Opening, closing the windows and moon roof
3
Before driving
5Release the power window
switch for a m oment, resume
pushing the switch in the one-
touch opening direction, and
hold it there for a pproximately 4
seconds or more.
6 Pull and hold the power window
switch in the one-touch closing
direction again. After the side
window is completely closed,
continue holding the switch for a
further 1 second or more.
If you release the switch while the
side window is moving, start again
from the beginning.
If the side window reverses and
cannot be fully closed or opened,
have the vehicle inspected by your
Toyota dealer.
■Door lock linked power window
operation
●The power windows can be
opened and closed using the
mechanical key.
* (  P.503)
●The power windows can be
opened using the wireless remote
control.
* ( P.132)
●Vehicles with alarm: The alarm
may be triggered if the alarm is set
and the power window is closed
using the door lock linked power
window operation function.
( P.89)
*: These settings must be custom-
ized at your To yota dealer.
■Power window open reminder
function
The buzzer sounds and a message
is shown on the multi-information
display when the power switch is
turned to OFF and the driver’s door
is opened with the power windows
open.
■Customization
Settings (e.g. linked door lock oper-
ation) can be changed. (Customiz-
able features: P.545)
WARNING
Observe the following precau-
tions.
Failing to do so may result in
death or serious injury.
■Closing the power windows
●The driver is responsible for all
the power window operations,
including the operation for the
passengers. In order to prevent
accidental operation, especially
by a child, do not let a child
operate the power windows. It is
possible for children and other
passengers to have body parts
caught in the power window.
Also, when ridin g with a child, it
is recommended to use the win-
dow lock switch. ( P.204)
●Check to make sure that all pas-
sengers do not have any part of
their body in a position where it
could be caught when a power
window is being operated.
●When using the mechanical key
and operating the power win-
dows, operate the power win-
dow after checking to make
sure that there is no possibility
of any passenger having any of
their body parts caught in the
side window. Also, do not let a
child operate the power window
by the mechanical key. It is pos-
sible for children and other pas-
sengers to get caught in the
power window.

2043-5. Opening, closing the windows and moon roof
This function can be used to
prevent children from acciden-
tally opening or closing a pas-
senger window.
Press the switch.
The indicator will come on and
the passenger windows will be locked.
The passenger windows can still be
opened and closed using the
driver’s switch even if the lock
switch is on.
■The window lock switch can be
operated when
The power switch is in ON.
WARNING
●When exiting the vehicle, turn
the power switch to OFF, carry
the key and exit the vehicle
along with the child. There may
be accidental operation, due to
mischief, etc., that may possibly
lead to an accident.
■Jam protection function
●Never use any part of your body
to intentionally a ctivate the jam
protection function.
●The jam protection function may
not work if something gets
jammed just before the side
window is fully closed. Be care-
ful not to get any part of your
body jammed in the side win-
dow.
■Catch protection function
●Never use any part of your body
or clothing to intentionally acti-
vate the catch p rotection func-
tion.
●The catch protection function
may not work if something gets
caught just before the side win-
dow is fully opened. Be careful
not to get any part of your body
or clothing caught in the side
window.
Preventing accidental
operation (window lock
switch)
A

2063-5. Opening, closing the windows and moon roof
■When the moon roof does not
close normally
Perform the following procedure:
1 Stop the vehicle.
2 Press and hold the close switch.
*
The moon roof will close, reopen
and pause for approximately 10
seconds. Then it will close again
and stop at the completely closed
position.
3 Check to make sure that the
moon roof is completely closed
and then release the switch.
*: If the switch is released at the
incorrect time, the procedure will
have to be performed again from
the beginning.
If the moon roof do es not fully close
even after performing the above
procedure correctly, have the vehi-
cle inspected by your Toyota dealer.
■If the moon roof does not move
normally
If the moon roof does not open or
close normally or the automatic
opening function does not operate,
perform the followi ng initialization
procedure.
1 Stop the vehicle.
2 Press and hold the down switch.
*
The moon roof will stop at the tilt-up
position. After that, it will open,
close, tilt up, tilt down, and stop at
the fully closed position.
3Confirm that the moon roof has
completely stopped and release
the switch.
*: If you release the switch while the
moon roof is moving, perform the
procedure again from the begin-
ning.
If, after performing the above proce-
dures correctly, the moon roof still
does not open or close normally or
the automatic opening function does not operate, have the vehicle
inspected by your Toyota dealer.
■Moon roof open reminder func-
tion
The buzzer sounds and a message
is shown on the mu lti-information
display when the power switch is
turned to OFF and the driver’s door
is opened with t he moon roof open.
■Customization
Settings (e.g. linked door lock oper-
ation) can be changed. (Customiz-
able features: P.545)
WARNING
Observe the following precau-
tions.
Failure to do so may cause death
or serious injury.
■Opening the moon roof
●Do not allow any passengers to
put their hands or head outside
the vehicle while it is moving.
●Do not sit on top of the moon
roof.
■Opening and closing the
moon roof
●The driver is responsible for
moon roof opening and closing
operations.
In order to prevent accidental
operation, especially by a child,
do not let a child operate the
moon roof. It is possible for chil-
dren and other passengers to
have body parts caught in the
moon roof.

4196-3. Do-it-yourself maintenance
6
Maintenance and care
The 12-volt battery is located in
the right-hand side of luggage
compartment.
■Before recharging
When recharging, the 12-volt bat-
tery produces hydrogen gas which
is flammable and explosive. There-
fore, observe the following precau-
tions before recharging:
●If recharging with the 12-volt bat-
tery installed on the vehicle, be
sure to disconnect the ground
cable.
●Make sure the power switch on
the charger is off when connecting
and disconnecting the charger
cables to the 12-volt battery.
■After recharging/reconnecting
the 12-volt battery
●Unlocking the doors using the
smart key system may not be pos-
sible immediately after reconnect-
ing the 12-volt battery. If this
happens, use the wireless remote
control or the mechanical key to
lock/unlock the doors.
●Start the hybrid system with the
power switch in ACC. The hybrid
system may not start with the
power switch turned off. How-
ever, the hybrid system will oper-
ate normally from the second attempt.
●The power switch mode is
recorded by the vehicle. If the 12-
volt battery is reconnected, the
vehicle will return the power
switch mode to the status it was in
before the 1
2-volt battery was dis-
connected. Make sure to turn off
the power switch before discon-
nect the 12-volt battery. Take
extra care when connecting the
12-volt battery if the power switch
mode prior to discharge is
unknown.
If the hybrid system will not start
even after multiple attempts at all
methods above, contact your
Toyota dealer.12-volt battery
Location
WARNING
■Chemicals in the 12-volt bat-
tery
The 12-volt battery contains poi-
sonous and corrosive sulfuric acid
and may produce hydrogen gas
which is flammable and explosive.
To reduce the risk of death or
serious injury, take the following
precautions while working on or
near the 12-volt battery:
●Do not cause sparks by touch-
ing the 12-volt battery terminals
with tools.
●Do not smoke or light a match
near the 12-volt battery.
●Avoid contact with eyes, skin
and clothes.
●Never inhale or swallow electro-
lyte.
●Wear protective safety glasses
when working near the 12-volt
battery.
●Keep children away from the
12-volt battery.

5037-2. Steps to take in an emergency
7
When trouble arises
following operations.
1Locks all the doors
2 Unlocks the door
■Key linked functions
The opening and closing of the
power windows and moon roof can
be linked to key operation by a cus-
tomized setting at your Toyota
dealer.
1 Closes the windows and the
moon roof
* (turn and hold)
2 Opens the windows and the
moon roof
* (turn and hold)
*: If equipped
1Ensure that the shift lever is
in P and depress the brake
pedal.
2 Touch the electronic key to
the power switch as shown in
the illustration.
When the electronic key is
detected, a buzzer sounds and the
power switch will turn to ON.
When the smart key system is
deactivated in customization set-
ting, the power switch will turn to
ACC.
3Firmly depress the brake
pedal and check that is
WARNING
■When using the mechanical
key and operating the power
windows or the moon roof (if
equipped)
Operate the power window or the
moon roof after checking to make
sure that there is no possibility of
any passenger having any of their
body parts caught in the window
or the moon roof. Also, do not
allow children to operate the
mechanical key. It is possible for
children and other passengers to
get caught in the power window or
the moon roof.
Starting the hybrid sys-
tem

566What to do if... (Troubleshooting)
1-1.What to do if... (Troubleshooting)What to do if... (Troubleshooting)
If you lose your keys or
mechanical keys, new genu-
ine keys or mechanical keys
can be made by your Toyota
dealer. ( P.500)
 If you lose your electronic
keys, the risk of vehicle theft
increases significantly. Con-
tact your Toyota dealer imme-
diately. ( P.500)
 Is the key battery weak or
depleted? ( P.444)
 Vehicles with entry function:
Is the power switch in ON?
When locking the doors, turn
the power switch off.
( P.237)
 Vehicles with entry function:
Is the electronic key left inside
the vehicle? When locking the doors,
make sure that you have the
electronic key on your person.
 The function may not operate
properly due to the condition
of the radio wave. ( P.166)
 Is the child-protector lock set?
The sliding door cannot be
opened from inside the vehi-
cle when the lock is set. Open
the sliding door from outside
and then unlock the child-pro-
tector lock. ( P.142)
 Did you press the power
switch while firmly depress-
ing the brake pedal?
( P.234)
 Is the shift lever in P?
( P.234)
 Is the electronic key any-
where detectable inside the
vehicle? ( P.165)
 Is the electronic key battery
weak or depleted?
In this case, the hybrid sys-
tem can be started in a tem-
If you have a problem,
check the following before
contacting your Toyota
dealer.
The doors cannot be
locked, unlocked, opened
or closed
You lose your keys
The doors cannot be
locked or unlocked
The sliding door cannot
be opened
If you think something is
wrong
The hybrid system does
not start

569Alphabetical Index
Alphabetical Index
A
A/C ................................... 348, 358Air conditioning filter ............. 438
Eco air conditioning mode .... 352
Front automatic air conditioning system ................................ 348
Front seat concentrated airflow mode (S-FLOW) ................. 354
Rear automatic air conditioning system ................................ 358
ABS (Anti-lock Brake System) ............................................... 335Function ............................... 335
Warning light ........................ 466
ACA (Active Cornering Assist) ............................................... 336
Acoustic Vehicle Alerting Sys- tem ........................................... 81
Active Cornering Assist (ACA) ............................................... 336
AHB (Automatic High Beam) . 253
Airbags ...................................... 41 Airbag operating conditions.... 44
Airbag precautions for your child............................................. 46
Airbag warning light.............. 466
Correct driving posture ........... 33
Curtain shield airbag operating conditions ............................. 44
Curtain shield airbag precautions ............................................. 46
Front passenger occupant clas- sification system ................... 51
General airbag precautions .... 46
Locations of airbags ............... 41
Modification and disposal of air- bags ..................................... 49
Seat cushion airbag ............... 41
Side airbag operating conditions ............................................. 44
Side airbag precautions ......... 46 Side and curtain shield airbags
operating conditions .............44
Side and curtain shield airbags precautions ...........................46
SRS airbags ...........................41
SRS warning light .................466
Air conditioning filter .............438
Air conditioning system.348, 358 Air conditioning filter .............438
Changing the rear seat settings...........................................356
Eco air conditioning mode ....352
Front automatic air conditioning system ................................348
Front seat concent rated airflow
mode (S-FLOW) .................354
Rear automatic air conditioning system ................................358
Alarm .........................................89 Alarm ......................................89
Warning buzzer .. ..................464
Anchor brackets ... ..............60, 71
Antenna (Smart key system) .165
Anti-lock brake system (ABS)335 Function................................335
Warning light ........................466
Approach warning ..................298
Armrest ......... ......................... ..386
Assist grips .............................386
Automatic air conditioning sys- tem .................................348, 358Air conditioning filter .............438
Eco air conditioning mode ....352
Automatic High Beam (AHB) .253
Automatic light control system ...............................................252
Average fuel consumption ....125
Average fuel economy ...........106
Average vehicle speed ...111, 125
B
Back door ................................150