2021 TOYOTA SIENNA HYBRID alarm

1653-2. Opening, closing and locking the doors
3
Before driving
compartment (vehicles with entry
function)
Antennas inside the cabin
■Effective range (areas within
which the electronic key is
detected)
When locking or unlocking the
doors (vehicles with entry func-
tion)
The system can be operated when
the electronic key is within about 2.3
ft. (0.7 m) of the outside front door
handles or back door opener switch.
(Only the doors detecting the key
can be operated.)
When starting the hybrid system
or changing power switch modes
The system can be operated when
the electronic key is inside the vehi-
cle.
■If an alarm sounds or a warning
message is displayed
An alarm sounds and warning mes-
sage displays shown on the multi-
information display are used to pro-
tect against unexpected accidents
or theft of the vehicl e resulting from
erroneous operation. When a warn-
ing message is displayed, take
appropriate measures based on the
displayed message.
When only an ala rm sounds, cir-
cumstances and c orrection proce-
dures are as follows.
●When an exterior alarm sounds
once for 5 seconds
●When an interior alarm pings con-
tinuously
■Battery-saving function (vehi-
cles with entry function)
The battery-saving function will be
activated in ord er to prevent the
electronic key battery and the 12-
volt battery from being discharged
while the vehicle is not in operation
for a long time.
●In the following situations, the
smart key system may take some
time to unlock the doors.
• The electronic key has been left in an area of approximately 11.5 ft.
(3.5 m) of th e outside of the vehi-
cle for 2 minutes or longer.
• The smart key system has not been used for 5 days or longer.
●If the smart key system has not
been used for 14 days or longer,
the doors cannot be unlocked at
any doors except the driver’s
door. In this case, take hold of the
driver’s door handle, or use the
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1673-2. Opening, closing and locking the doors
3
Before driving
hybrid system is started or power
switch modes are changed.
●Do not leave the electronic key on
top of the instrument panel or near
the door pockets when exiting the
vehicle. Depending on the radio
wave reception conditions, it may
be detected by the antenna out-
side the cabin and the door will
become lockable from the outside,
possibly trapping the electronic
key inside the vehicle.
●As long as the electronic key is
within the effective range, the
doors may be locked or unlocked
by anyone. However, only the
doors detecting the electronic key
can be used to unl ock the vehicle.
●Even if the electronic key is not
inside the vehicle, it may be possi-
ble to start the hybrid system if the
electronic key is near the window.
●The doors may unlock if a large
amount of water splashes on the
door handle, such as in the rain or
in a car wash when the electronic
key is within the effective range.
(The doors will automatically be
locked after approximately 60 sec-
onds if the doors are not opened
and closed.)
●If the wireless remote control is
used to lock the doors when the
electronic key is near the vehicle,
there is a possib ility that the door
may not be unlocke d by the entry
function. (Use the wireless remote
control to unloc k the doors.)
●Touching the door lock sensor
while wearing gloves may delay or
prevent lock operation. Remove
the gloves and touch the lock sen-
sor again.
●When the lock op eration is per-
formed using the lock sensor, rec-
ognition signals will be shown up
to two consecutive times. After
this, no recogniti on signals will be
given.
●If the door handle becomes wet
while the electronic key is within the effective range, the door may
lock and unlock repeatedly. In that
case, follow the
following correc-
tion procedures to wash the vehi-
cle:
• Place the electronic key in a loca-
tion 6 ft. (2 m) or more away from
the vehicle. (Take care to ensure
that the key is not stolen.)
• Set the electronic key to battery- saving mode to disable the smart
key system. ( P.166)
●If the electronic key is inside the
vehicle and a door handle
becomes wet during a car wash, a
message may be shown on the
multi-information display and a
buzzer will sound outside the vehi-
cle. To turn off th e alarm, lock all
the doors.
●The lock sensor may not work
properly if it comes into contact
with ice, snow, m ud, etc. Clean
the lock sensor and attempt to
operate it again, or use the lock
sensor on the lower part of the
door handle.
●A sudden approach to the effec-
tive range or door handle may pre-
vent the doors from being
unlocked. In this case, return the
door handle to the original position
and check that t he doors unlock
before pulling the door handle
again.
●If there is another electronic key in
the detection area, it may take
slightly longer to unlock the doors
after the door handle is gripped.
■When the vehicle is not driven
for extended periods
●Vehicles with entry function: To
prevent theft of the vehicle, do not
leave the electronic key within 6 ft.
(2 m) of the vehicle.
●The smart key system can be
deactivated in advance. ( P.544)
●Battery-saving mode can reduce
the power consumption of elec-
tronic keys. ( P.166)

1683-2. Opening, closing and locking the doors
■To operate the system properly
Make sure to carry the electronic
key when operating the system. Do
not get the electronic key too close
to the vehicle when operating the
system from the ou tside of the vehi-
cle.
Depending on the position and hold-
ing condition of the electronic key,
the key may not be detected cor-
rectly and the system may not oper-
ate properly. (The alarm may go off
accidentally, or the door lock pre-
vention may not operate.)
■If the smart key system does
not operate properly
●If the doors cannot be locked or
unlocked, perform the following.
• Bring the electronic key close to
the door handle and perform a
lock or unlock operation.
• Use the wireless remote control.
If the doors cannot be locked or
unlocked by perform the above, use
the mechanical key. ( P.504)
However, if the mechanical key is
used while the alarm system is set,
the warning will sound. ( P.83)
●If the hybrid system cannot be
started, refer to P.505
■Customization
Settings (e.g. smart key system)
can be changed.
(Customizable features: P.544)
If the smart key system has been
deactivated in a customized setting,
refer to the explanations for the fol-
lowing operations.
●Locking and unlocking the doors:
Use the wireless remote control or
mechanical key. ( P.132, 504)
●Starting the hybrid system and
changing power switch modes:
P.505
●Stopping the hybrid system:
P.233
WARNING
■Caution regarding interfer-
ence with electronic devices
●People with implantable car-
diac pacemakers, cardiac
resynchronization therapy-
pacemakers or implantable car-
dioverter defibrillators should
maintain a reasonable distance
between themselves and the
smart key system antennas.
( P.164)
The radio waves may affect the
operation of such devices. If
necessary, the e ntry function
can be disabled. Ask your
Toyota dealer for details, such
as the frequency of radio waves
and timing of the emitted radio
waves. Then, consult your doc-
tor to see if you should disable
the entry function.
●Users of any electrical medical
device other than implantable
cardiac pacemakers, cardiac
resynchronization therapy-
pacemakers or implantable car-
dioverter defibrillators should
consult the manufacturer of the
device for information about its
operation under the influence of
radio waves.
Radio waves could have unex-
pected effects on the operation
of such medical devices.
Ask your Toyota dealer for details
on disabling the entry function.

2023-5. Opening, closing the windows and moon roof
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.504)
●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.547)
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.203)
●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 wireless remote
control, key or 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 wireless remote control,
key or 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
*: If equipped
■Opening and closing
1 Opens the moon roof
*
The moon roof stops slightly before
the fully open position to reduce
wind noise.
Press the switch again to fully open
the moon roof.
2Closes the moon roof*
*: Lightly press either side of the
moon roof switch to stop the
moon roof partway.
■Tilting up and down 1
Tilts the moon roof up
*
2Tilts the moon roof down*
*: Lightly press e ither side of the
moon roof switch to stop the
moon roof partway.
■The moon roof can be operated
when
The power switch is in ON.
■Operating the moon roof after
turning the hybrid system off
The moon roof can be operated for
approximately 45 s econds after the
power switch is turned to ACC or
OFF. It cannot, however, be oper-
ated once either front door is
opened.
■Jam protection function
If an object is dete cted between the
moon roof and the frame while the
moon roof is closing or tilting down,
travel is stopped and the moon roof
opens slightly.
■Sunshade
The sunshade can be opened and
closed manually. However, the sun-
shade will open aut omatically when
the moon roof is opened.
■Door lock linked moon roof
operation
●The moon roof can be opened
and closed using the mechanical
key.
* (  P.504)
●The moon roof 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 moon roof is closed using
the door lock linked moon roof
operation function. ( P.89)
*: These settings must be custom-
ized at your Toyota dealer.
Moon roof*
Use the overhead switches
to open and close the moon
roof and tilt it up and down.
Operating the moon roof

4006-1. Maintenance and care
6-1.Maintenance and care
Working from top to bottom,
liberally apply water to the
vehicle body, wheel wells and
underside of the vehicle to
remove any dirt and dust.
 Wash the vehicle body using
a sponge or soft cloth, such
as a chamois.
 For hard-to-remove marks,
use car wash soap and rinse
thoroughly with water.
 Wipe away any water.
 Wax the vehicle when the
waterproof coating deterio-
rates.
If water does not bead on a clean
surface, apply wax when the vehi-
cle body is cool.
■Automatic car washes
●Before washing the vehicle:
• Fold the mirrors
• Disable the powe r sliding door
system
• Disable the power back door sys- tem (if equipped)
Start washing from the front of the
vehicle. Make sure to extend the
mirrors before driving.
●Brushes used in automatic car
washes may scratch the vehicle
surface, parts (wheel, etc.) and
harm your vehicle’s paint.
●Rear spoiler may not be washable
in some automatic car washes.
There may also be an increased
risk of damage to vehicle.
■High pressure car washes
As water may enter the cabin, do
not bring the nozzle tip near the
gaps around the doors or perimeter
of the windows, or spray these
areas continuously.
■Note for a smart key system
If the door handle becomes wet
while the electronic key is within the
effective range, t he door may lock
and unlock repeatedly. In that case,
follow the following correction pro-
cedures to wash the vehicle:
●Place the key in a position 6 ft. (2
m) or more separate from the
vehicle while the vehicle is being
washed. (Take care to ensure that
the key is not stolen.)
●Set the electronic key to battery-
saving mode to disable the smart
key system. ( P.165)
●If the electronic key is inside the
vehicle and a door handle
becomes wet during a car wash, a
buzzer may sound outside the
vehicle and “Key Detected in
Vehicle” may be shown on the
multi-information d isplay. To turn
off the alarm, lock all the doors.
■Wheels and wheel ornaments
●Remove any dirt immediately by
using a neutral detergent.
●Wash detergent off with water
immediately after use.
●To protect the paint from damage,
make sure to obs erve the follow-
ing precautions.
• Do not use acidic, alkaline or
abrasive detergent
• Do not use hard brushes
• Do not use detergent on the
Cleaning a nd protect-
ing the vehicle exte-
rior
Perform the following to
protect the vehicle and
maintain it in prime condi-
tion:
Cleaning instructions

5067-2. Steps to take in an emergency
If you have a set of jumper (or
booster) cables and a second
vehicle with a 12-volt battery,
you can jump start your vehicle
by following the steps below.
1Vehicles with alarm: Confirm
that the electronic key is
being carried.
When connecting the jumper (or
booster) cables, depending on the
situation, the ala rm may activate and the doors locked. (
P.90)
2 Open the hood ( P.413) and
fuse box cover.
Push claw , and to com-
pletely release the lock, and then lift
up the cover.
3 Open the exclusive jump
starting terminal cover.
4 Connect a positive jumper cable clamp to on your vehicle and
connect the clamp on the other end of the positive cable to on
the second vehicle. Then, connect a negative cable clamp to
If the 12-volt battery is
discharged
The following procedures
may be used to start the
hybrid system if the vehi-
cle’s 12-volt battery is dis-
charged.
You can also call your
Toyota dealer or a qualified
repair shop.
Restarting the hybrid sys-
tem
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569What to do if... (Troubleshooting)
weak or depleted?
In this case, the hybrid sys-
tem can be started in a tem-
porary way. (P.505)
 Is the 12-volt battery dis-
charged? ( P.506)
 Is the power switch in ON?
If you cannot release the shift
lever by depressing the brake
pedal with the power switch in
ON ( P.240)
 It is locked automatically to
prevent theft of the vehicle.
( P.232)
 Is the window lock switch
pressed?
The power window except for
the one at the driver’s seat
cannot be operated if the win-
dow lock switch is pressed.
( P.203)
 The auto power off function
will be operated if the vehicle is left in ACC or ON (the
hybrid system is not operat-
ing) for a period of time.
(
P.235)
 The seat belt reminder light is
flashing
Are the driver and the passengers
wearing the seat belts? (
P.473)
The parking brake indicator is
on
Is the parking br ake released?
( 
P.243)
Depending on the situation,
other types of warning buzzer
may also sound. ( P.466, 477)
 Did anyone inside the vehicle
open a door during setting the
alarm?
The sensor detects it and the
alarm sounds. ( P.89)
To stop the alarm, turn the power
switch to ON or start the hybrid sys-
tem.
 Is the message displayed on
the multi-information display?
Check the message on the
The shift lever cannot be
shifted from P even if you
depress the brake pedal
The steering wheel can-
not be turned after the
hybrid system is stopped
The windows do not open
or close by operating the
power window switches
The power switch is
turned off automatically
A warning buzzer sounds
during driving
An alarm is activated and
the horn sounds (if
equipped)
A warning buzzer sounds
when leaving the vehicle