alarm TOYOTA SIENNA HYBRID 2021 Owners Manual (in English)

2TABLE OF CONTENTS
For your information...................6
Reading this manual ................ 11
How to search .......................... 12
Pictorial index .......................... 14
1-1. For safe use Before driving ................... 32
For safe driving ................ 33
Seat belts ......................... 35
SRS airbags ..................... 41
Front passenger occupant classification system ...... 51
Exhaust gas precautions.. 56
1-2. Child safety Riding with children .......... 57
Child restraint systems..... 58
1-3. Emergency assistance Safety Connect ................ 75
1-4. Hybrid system Hybrid system features .... 79
Hybrid system precautions ....................................... 83
1-5. Theft deterrent system Immobilizer system .......... 88
Alarm................................ 89
2-1. Instrument cluster Warning lights and indicators....................................... 92
Gauges and meters (with 4.2- inch display) ................... 97Gauges and meters (with 7-
inch display) ................ 101
Multi-information display 104
Head-up display ............ 118
Energy monitor/ consumption
screen.......................... 122
3-1. Key information Keys .............................. 128
3-2. Opening, closing and lock- ing the doors
Front doors .................... 132
Sliding doors.................. 137
Back door ...................... 150
Smart key system .......... 164
3-3. Adjusting the seats Front seats .................... 169
Rear seats ..................... 171
Driving position memory 178
Head restraints .............. 182
3-4. Adjusting the steering wheel and mirrors
Steering wheel............... 185
Inside rear view mirror ... 186
Digital Rear-view Mirror . 188
Outside rear view mirrors .................................... 198
3-5. Opening, closing the win- dows and moon roof
Power windows ............. 201
Moon roof ...................... 204
1For safety and security
2
Vehicle status
information and
indicators
3Before driving

31
1
1
For safety and security
For safety and security
1-1. For safe useBefore driving ................. 32
For safe driving .............. 33
Seat belts ....................... 35
SRS airbags ................... 41
Front passenger occupant classification system .... 51
Exhaust gas precautions 56
1-2. Child safety Riding with children ........ 57
Child restraint systems... 58
1-3. Emergency assistance Safety Connect .............. 75
1-4. Hybrid system Hybrid system features .. 79
Hybrid system precautions ..................................... 83
1-5. Theft deterrent system Immobilizer sys tem ........88
Alarm.............................. 89

891-5. Theft deterrent system
1
For safety and security
*: If equipped
■Items to check before lock-
ing the vehicle
To prevent unexpected trigger-
ing of the alarm and vehicle
theft, make sure of the following:
 Nobody is in the vehicle.
 The side windows and moon
roof (if equipped) are closed
before the alarm is set.
 No valuables or other per-
sonal items are left in the
vehicle.
■Setting
Close the doors and hood, and
lock all the doors. The system
will be set automatically after 30 seconds.
The security indicator changes from
being on to flashing when the sys-
tem is set.
If all doors are closed with hood
open, alarm system can be set.
■Canceling or stopping
Do one of the following to deac-
tivate or stop the alarm:
 Unlock the doors.
 Turn the power switch to ACC
or ON, or start the hybrid sys-
tem. (The alarm will be deacti-
vated or stopped after a few
seconds.)
■System maintenance
The vehicle has a maintenance-free
type alarm system.
■Triggering of the alarm
The alarm may be triggered in the
following situations:
(Stopping the alarm deactivates the
alarm system.)
●The doors are unlocked using the
mechanical key.
Alarm*
The alarm uses light and
sound to give an alert when
an intrusion is detected.
The alarm is triggered in the
following situations when
the alarm is set:
 A locked door is unlocked or
opened in any way other
than using the entry func-
tion (if equipped) or wireless
remote control. (The doors
will lock again automati-
cally.)
 The hood is opened.
Setting/canceling/stop-
ping the alarm system

901-5. Theft deterrent system
If a door is unlocked using the
mechanical key while the alarm is
set, a warning will sound intermit-
tently for approximately 10 seconds.
If the alarm is not canceled or
stopped during this time, the warn-
ing pattern change s and the warn-
ing sounds for a certain period of
time.
●A person inside the vehicle opens
a door or hood, or unlocks the
vehicle using an inside lock but-
ton.
●The 12-volt battery is recharged or
replaced when the vehicle is
locked. ( P.506)
■Alarm-operated door lock
In the following cases, depending
on the situation, th e door may auto-
matically lock to p revent improper
entry into the vehicle:
●When a person left in the vehicle
triggers the alarm by unlocking a
door or the back door.
●When a person lef t in the vehicle
unlocks a door or the back door
while the alarm is operating.
●When recharging or replacing the
12-volt battery.
NOTICE
■To ensure the system oper-
ates correctly
Do not modify or remove the sys-
tem. If modified or removed, the
proper operation of the system
cannot be guaranteed.

1283-1. Key information
3-1.Key information
The following keys are provided
with the vehicle.Electronic keys
• Operating the smart key system ( P.164)
• Operating the wireless remote control function ( P.130)
Mechanical keys
Key number plate
■When riding in an aircraft
When bringing a key with wireless
remote control function onto an air-
craft, make sure y ou do not press
any buttons on the key while inside
the aircraft cabin. If you are carrying
the key in your bag etc., ensure that
the buttons are not likely to be
pressed accidentally. Pressing a
button may cause the key to emit
radio waves that could interfere with
the operation of the aircraft.
■Key battery depletion
●The standard battery life is 1 to 2
years.
●If the battery becomes low, an
alarm will sound in the cabin and a
message will be dis played on the
multi-information display when the
hybrid system stops.
●To reduce key battery depletion
when the electronic key is to not
be used for long periods of time,
set the electronic key to the bat-
tery-saving mode. ( P.166)
●As the electronic key always
receives radio waves, the battery
will become depleted even if the
electronic key is not used. The fol-
lowing symptoms indicate that the
electronic key battery may be
depleted. Replace the battery
when necessary.
• The smart key system or the wire-
less remote contro l does not oper-
ate.
• The detection area becomes
smaller.
• The LED indicator on the key sur- face does not turn on.
You can replace the battery by your-
self ( P.447). However, as there is
a danger that the electronic key may
be damaged, it is recommended
that replacement is carried out by
your Toyota dealer.
●To avoid serious deterioration, do
not leave the electronic key within
3 ft. (1 m) of the following electri-
cal appliances that produce a
magnetic field:
•TVs
• Personal computers
• Cellular phones, cordless phones and battery chargers
• Table lamps
• Induction cookers
●If the electronic key is near the
vehicle for longer than necessary,
even if the smart key system is not
used, the key battery may become
depleted faster than normal.
When not using the smart key sys-
tem, it is recommended not to stay
with the electronic key near the
vehicle longer than necessary.
■If a message regarding the state
of the electronic key or power
switch mode, e tc. is shown
To prevent trapping the electronic
Keys
Key types
A
B
C

1303-1. Key information
The keys are equipped with the
following wireless remote con-
trol:
Vehicles with power back
doorLocks all the doors ( P.132)
Unlocks all the doors
( P.132)
Opens the windows
*1 and
moon roof
*1, 2 (  P.132)
Opens and closes the right
side power sliding door
( P.137)
Opens and closes the left
side power sliding door
( P.137)
Opens and closes the power
back door ( P.153)
Sounds the alarm ( P.130)
*1: These settings must be custom-
ized at your Toyota dealer.
*2: If equipped
Vehicles without power back
door
Locks all the doors ( P.132)
Unlocks all the doors
( P.132)
Opens the windows
*1 and
moon roof
*1, 2 (  P.132)
Opens and closes the right
side power sliding door
( P.137)
Opens and closes the left
side power sliding door
( P.137)
Sounds the alarm ( P.130)
*1: These settings must be custom-
ized at your Toyota dealer.
*2: If equipped
■Theft deterrent panic mode
When is pressed for longer
than about 1 second, an alarm will
sound intermittently and the vehicle
lights will flash to deter any person
from trying to break into or damage
your vehicle.
To stop the alarm, press any button
on the electronic key.
NOTICE
■When an electronic key is lost
 P.502
Wireless remote control
A
B
C
D
E
F
G
A
B
C
D
E
F

1333-2. Opening, closing and locking the doors
3
Before driving
Vehicles without power back
door
1 Locks all the doors
Check that the door is securely
locked.
2Unlocks all the doors
Pressing the button unlocks the
driver’s door. Pressing the button
again within 5 seconds unlocks the
other doors.
Press and hold to open the win-
dows
*1 and moon roof*1, 2
*1
:This setting mu st be customized
at your Toyota dealer.
*2: If equipped
■Using the key
The doors can also be locked
and unlocked with the mechani-
cal key. ( P.504)
■Switching the door unlock func-
tion (vehicles with entry func-
tion)
It is possible to set which doors the
entry function unlocks using the
wireless remote control. Perform the
switching operation in the vehicle or
within approximately 3.2 ft. (1 m) of
the vehicle.
1 Turn the power switch to OFF.
2 When the indicator light on the
key surface is not on, press and
hold , , , or for approximately 5 sec-
onds while pressing and holding
.
The setting changes each time an
operation is per formed, as shown
below. (When changing the setting
continuously, release the buttons,
wait for at least 5 seconds, and
repeat step 2 .)
Vehicles with alarm: To prevent
unintended triggeri ng of the alarm,
unlock the doors using the wireless
remote control and open and close
a door once after the settings have
been changed. (If a door is not
opened within 60 seconds after
is pressed, the doors will be
locked again and the alarm will
automatically be set.)
In a case that the alarm is triggered,
immediately stop the alarm.
(  P.89)
Multi-informa-
tion dis-
play/BeepUnlocking func- tion
Exterior: Beeps 3 times
Interior: Pings once
Holding the
driver’s door han-
dle unlocks only
the driver’s door.
Holding the pas-
senger’s door
handle unlocks all
the doors.
Exterior: Beeps twice
Interior: Pings once
Holding a door
handle unlocks all
the doors.

1343-2. Opening, closing and locking the doors
■Impact detection door lock
release system
In the event that t he vehicle is sub-
ject to a strong impact, all the doors
are unlocked. Depending on the
force of the impact or the type of
accident, however, the system may
not operate.
■Operation signals (vehicles
with entry function)
A buzzer sounds and the emer-
gency flashers flash to indicate that
the doors have been
locked/unlocked . (Locked: Once;
Unlocked: Twice)
■Security feature
If a door is not opened within
approximately 60 seconds after the
vehicle is unlocked, the security fea-
ture automatically locks the vehicle
again. (Vehicles with entry function:
However, depending on the location
of the electronic key, the key may
be detected as being in the vehicle.
In this case, vehicle may be
unlocked.)
■When the door cannot be
locked by the lock sensor on
the upper part of the door han-
dle (vehicles with entry func-
tion)
If the door will no t lock even when
the topside sensor area is touched,
try touching both the topside and
underside sensor areas at the same
time. When gloves are being worn,
remove the gloves.
■Door lock buzzer
If an attempt to lock the doors using
the entry function or wireless remote
control is made w hen a door is not fully closed, a buzzer sounds contin-
uously for 5 seconds. Fully close the
door to stop the buzzer, and lock the
vehicle once more.
■Setting the alarm (if equipped)
Locking the doors will set the alarm
system. ( P.89)
■Conditions affecting the opera-
tion of the smart key system or
wireless remote control
 P.166
■If the smart key system or the
wireless remote control does
not operate properly
●Use the mechanical key to lock
and unlock the doors. ( P.504)
●Replace the key battery with a
new one if it is depleted. ( P.447)
■If the 12-volt b attery is dis-
charged
The doors cannot be locked and
unlocked using the smart key sys-
tem or wireless remote control. Lock
or unlock the do ors using the
mechanical key. ( P.133, 504)
■Rear seat reminder function
●In order to r emind you not to for-
get the luggage, etc. on the rear
seat, when the power switch is
turned to OFF afte r any of the fol-
lowing conditions are met, a
buzzer will sound and a message
will be displayed on the multi-
information display for approxi-
mately 6 seconds.
• The hybrid system is started within 10 minutes after opening
and closing a sliding door.
• A sliding door has been opened and closed after the hybrid system
is started. However, if a sliding
door is opened and then closed
within approximately 2 seconds,
the rear seat rem inder function
may not operate.
●The rear seat reminder function
determines that t he luggage, etc.
has been placed on the rear seat
depending on opening and closing

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
C
A
B
6LWXDWLRQ&RUUHFWLRQSUR
FHGXUH
$QDWWHPSWZDV
PDGHWRORFN\
WKH
YHKLFOHZKLOHD
GRRUZDVRSHQ&ORVHDOORIWKH
GRRUVDQGORFN
WKHGRRUVDJDLQ
6LWXDWLRQ&RUUHFWLRQSURFHGXUH
7KHSRZHU
VZLWFKZDV
WXUQHGWR$&&
ZKLOHWKHGULYHU¶V
GRRUZDVRSHQ
RUWKHGULYHU¶V
GRRUZDVRSHQHG
ZKLOHWKHSRZHU
VZLWFKZDVLQ
$&&\f
7XUQWKHSRZHU
VZLWFKWR2))
DQGFORVHWKH
GULYHU¶VGRRU

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)