2021 TOYOTA SIENNA HYBRID sensor

1583-2. Opening, closing and locking the doors
■Situations in which the close &
lock function may not operate
properly
In the following si tuations, the close
& lock function may not operate
properly:
●If the switch on the lower part
of the power back door ( P.154)
is pressed by a hand which is
holding an electronic key
●If the switch on the lower part
of the power back door ( P.154)
is pressed when the electronic key
is in a bag, etc. that is placed on
the ground
●If the switch on the lower part
of the power back door ( P.154)
is pressed with the electronic key
not near the vehicle
■Kick sensor operating condi-
tions (vehicles with Hands Free
Power Back Door)
The Hands Free Power Back Door
will open/close automatically when
the following cond itions are met:
●The kick sensor operation is
enabled ( P.112)
●The electronic key is within the
operational range. ( P.165)
●A foot is put near the lower center
part of the rear bumper and
moved away from the rear
bumper.
The power back door may also be
operated by putting a hand, an
elbow, a knee, etc. near the lower
center part of the rear bumper and
moving it away from the rear
bumper. Make sure to put it close
enough to the center part of the
rear bumper.
■Situations in which the Hands
Free Power Back Door may not
operate properly (vehicles with
Hands Free Powe r Back Door)
In the following situations, the
Hands Free Power Back Door may not operate properly:
●When a foot remains under the
rear bumper
●If the rear bumper
is strongly hit
with a foot or is touched for a while
If the rear bumper has been touched
for a while, wait f or a short time
before attempting to operate the
Hands Free Power Back Door
again.
●When operated while a person is
too close to the rear bumper
●When an external radio wave
source interferes with the commu-
nication between the electronic
key and the vehicle ( P.166)
●When the vehicle is parked near
an electrical noise source which
affects the sensitivity of the Hands
Free Power Back Door, such as a
pay parking spot, gas station,
electrically heated road, or fluo-
rescent light
●When the vehicle is near a TV
tower, electric po wer plant, radio
station, large display, airport or
other facility that generates strong
radio waves or electrical noise
●When a large amount of water is
applied to the rea r bumper, such
as when the vehicle is being
washed or in heavy rain
●When mud, snow, ice, etc. is
attached to the rear bumper
●When the vehicle has been
parked for a while near objects
that may move and contact the
rear bumper, such as plants
●When an accessory i s installed to
the rear bumper
If an accessory has been installed,
turn the Hands F ree Power Back
Door (kick sensor) operation setting
off.

1593-2. Opening, closing and locking the doors
3
Before driving
■Preventing unintentional opera-
tion of the Hands Free Power
Back Door (vehicles with Hands
Free Power Back Door)
When an electronic key is in the
operation range, the Hands Free
Power Back Door may operate unin-
tentionally, so be careful in the fol-
lowing situations.
●When a large amount of water is
applied to the rear bumper, such
as when the vehicle is being
washed or in heavy rain
●When dirt is wiped off the rear
bumper
●When a small animal or small
object, such as a ball, moves
under the rear bumper
●When an object is moved from
under the rear bumper
●If someone is swinging their legs
while sitting on the rear bumper
●If the legs or another part of some-
one’s body contacts the rear
bumper while passi ng by the vehi-
cle
●When the vehicle is parked near
an electrical noise source which
affects the sensitivity of the Hands
Free Power Back Door, such as a
pay parking spot , gas station,
electrically heated road, or fluo-
rescent light
●When the vehicle is near a TV
tower, electric power plant, radio
station, large display, airport or
other facility that generates strong
radio waves or electrical noise
●When the vehicle is parked in a
place where objects such as
plants are near the rear bumper
●If luggage, etc. is s et near the rear
bumper
●If accessories or a vehicle cover is
installed/removed near the rear
bumper
●When the vehicle is being towed
To prevent unintentional operation, turn the Hands F
ree Power Back
Door (kick sensor) operation setting
off. ( P.112)
■If the back door opener is inop-
erative
The back door can be unlocked
from the inside.
1 Remove the both side covers.
2 Remove the bolts with a socket
wrench of an appropriate size.
3 Remove the inside panel.
4 Move the lever.

1623-2. Opening, closing and locking the doors
NOTICE
■To prevent damage to the
power back door
●Make sure that there is no ice
between the back door and
frame that would prevent move-
ment of the back door. Operat-
ing the power back door when
excessive load is present on the
back door may cause a mal-
function.
●Do not apply excessive force to
the back door while the power
back door is operating.
●Take care not to damage the
sensors (installed on the right
and left edges of the power
back door) with a knife or other
sharp object. If the sensor is
disconnected, the power back
door will not close automati-
cally.
■Close & lock function
When closing the power back
door using the close & lock func-
tion, a different buzzer than the
normal one will sound before the
operation begins.
To check that the operation has
started correctly, check that a dif-
ferent buzzer than the normal one
has sounded.
Additionally, when the power back
door is fully closed and locked,
operation signals will indicate that
all of the doors have been locked.
Before leaving the vehicle, make
sure that the operation signals
have operated and that all of the
doors are locked.
■Hands Free Power Back Door
precautions (if equipped)
The kick sensor is located behind
lower center p art of the rear
bumper. Observe the following to
ensure that the Hands Free
Power Back Door function oper-
ates properly:
●Keep the lower c enter part of
the rear bumper clean at all
times.
If the lower center part of the
rear bumper is dirty or covered
with snow or mud, the kick sen-
sor may not operate. In this situ-
ation, clean off th e dirt or snow,
move the vehicle from the cur-
rent position and then check if
the kick sensor operates.
If it does not o perate, have the
vehicle inspected by your
Toyota dealer.
●Do not apply coatings that have
a rain clearin g (hydrophilic)
effect, or other coatings, to the
lower center part of the rear
bumper.
●Do not park the vehicle near
objects that may move and con-
tact the lower center part of the
rear bumper, such as grass or
trees.
If the vehicle has been parked
for a while near objects that
may move and contact the
lower center part of the rear
bumper, such as grass or trees,
the kick sensor may not oper-
ate. In this situation, move the
vehicle from the current position
and then check if the kick sen-
sor operates. If it does not oper-
ate, have the vehicle inspected
by your Toyo ta dealer.

1633-2. Opening, closing and locking the doors
3
Before driving
The power back door system
can be enabled/disabled on the
multi-information display.
(P.112)
If the power back door is dis-
abled, it will remain disabled
unless it is enabled on the multi-
information display. (It will not
be enabled even when the
power switch is turned off and
then back to ON.) The Hands Free Power Back
Door (kick sensor) can be
enabled/disabled on the multi-
information display. (
P.112)
If the Hands Free Power Back
Door is disabled, it will remain
disabled unless it is enabled on
the multi-information display. (It
will not be enabled even when
the power switch is turned off
and then back to ON.)
The power back door open posi-
tion can be adjusted by using
the power back door switch on
the back door or on the multi-
information display.
■Using the multi-information
display
The power back door open posi-
tion can be adjusted on the
multi-information display.
( P.112)
■Using the power back door
switch on the back door
1 Stop the back door in the
desirable position. ( P.153)
2 Press and hold the power
back door switch on the back
NOTICE
●Do not subject the kick sensor
or its surrounding area to a
strong impact.
If the kick sensor or its sur-
rounding area has been sub-
jected to a strong impact, the
kick sensor may not operate
properly. If the kick sensor does
not operate in the following situ-
ations, have the vehicle
inspected by your Toyota
dealer.
• The kick sensor or its surround- ing area has been subjected to
a strong impact.
• The lower center part of the rear bumper is scratched or dam-
aged.
●Do not disassemble the rear
bumper.
●Do not attach an accessory con-
taining metal or apply metallic
paint to the rear bumper.
Canceling the power back
door system (vehicles
with power back door)
Canceling the Hands Free
Power Back Door (vehi-
cles with kick sensor)
Adjusting the open posi-
tion of the back door
(vehicles with power back
door)

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)

1873-4. Adjusting the steering wheel and mirrors
3
Before driving
Reflected light from the head-
lights of vehicles behind can be
reduced by operating the lever.
1Normal position
2 Anti-glare position
Responding to the level of
brightness of the headlights of
vehicles behind, the reflected
light is automatically reduced.
Changing automatic anti-glare
function mode on/off
When the automatic anti-glare func-
tion is in ON mode, the indicator
illuminates.
The function will set to ON mode
each time the power switch is
turned to ON.
Pressing the button turns the func-
tion to OFF mode. (The indicator also turns off.)
Vehicles without garage door
opener
Vehicles with garage door
opener
■To prevent sensor error (vehi-
cles with auto ant i-glare inside
rear view mirror)
To ensure that the sensors operate
properly, do not touch or cover
them.
Vehicles without garage door
opener
Anti-glare function (vehi-
cles with manual anti-
glare inside rear view mir-
ror)
Anti-glare function (vehi-
cles with auto anti-glare
inside rear view mirror)
A
A

1923-4. Adjusting the steering wheel and mirrors
When using the optical mirror
mode
1 Press the menu button.
The icons will be displayed.
2Press the menu button
repeatedly and select .
The setting display will be dis-
played.
3Press or to
enable (ON)/disable (OFF)
the automatic anti-glare func-
tion.
The icons will disappear if a button
is not operated fo r approximately 5
seconds or more.
■Adjusting the display (digital
mirror mode)
●If the displayed image is adjusted,
it may appear distorted. This is not
a malfunction.
●If the brightness of the Digital
Rear-view Mirror is set too high, it
may cause eye strain. Adjust the
Digital Rear-view Mirror to an
appropriate brightness. If your
eyes become tired, change to
optical mirror mode.
●The brightness of the Digital Rear-
view Mirror will ch ange automati-
cally according to the brightness
of the area in front of your vehicle.
■To prevent the light sensors
from malfunctioning
To prevent the light sensors from
malfunctioning, do not touch or
cover them.
WARNING
Observe the following precau-
tions.
Failure to do so may result in
death or serious injury.
■While driving
●Do not adjust the position of the
Digital Rear-view Mirror or
adjust the display settings while
driving.
Stop the vehicle and operate
the Digital Rear-view Mirror
control switches.
Failure to do so may cause a
steering wheel operation error,
resulting in an unexpected acci-
dent.
●Always pay attention to the
vehicle’s surroundings.
The size of the vehicles and other
objects may look different when in
digital mirror mode and optical
mirror mode.
When backing up, make sure to
directly check the safety of the
area around your vehicle, espe-
cially behind the vehicle.
Additionally, if a vehicle
approaches from the rear in the
dark, such as at night, the sur-
rounding area may appear dim.

2494-3. Operating the lights and wipers
4
Driving
■Headlight control sensor
The sensor may not function prop-
erly if an object is placed on the sen-
sor, or anything that blocks the
sensor is affixed to the windshield.
Doing so interfere s with the sensor
detecting the level of ambient light
and may cause the automatic head-
light system to malfunction.
■Automatic light off system
●When the headlights are on: The
lights turn off 30 seconds after the
power switch is turned to ACC or
OFF and a door is opened and
closed. (The lights turn off imme-
diately if on the key is
pressed after all the doors are
closed.)
●When only the tail lights are on:
The tail lights turn off automati-
cally if the power switch is turned
to ACC or OFF and the driver’s
door is opened.
Except for Canada: To turn the
lights on again, turn the power
switch to ON, or turn the light switch
off once and the n back to or
position.
For Canada: To turn the lights on
again, turn the power switch to ON,
or turn the light s witch to once
and then back to or posi-
tion.
■Light reminder buzzer
A buzzer sounds when the power
switch is turned to ACC or OFF and
the driver’s door is opened while the
lights are turned on.
■Windshield wiper linked head-
light illumination (if equipped)
When driving during daytime with
the headlight switch turned to , if
the windshield wipers are used, the
headlights will turn o n automatically
after several se conds to help
enhance the visibility of your vehi-
cle.
■12-volt battery-saving function
In order to prevent the 12-volt bat-
tery of the vehicle from discharging,
if the headlights and/or tail lights are
on when the power switch is turned
to OFF, the battery saving function
will operate and au tomatically turn
off all the lights af ter approximately
20 minutes.
When any of the following are per-
formed, the battery-saving function
is canceled once and then reacti-
vated. All the light s will turn off auto-
matically 20 minutes after the
battery-saving function has been
reactivated:
●When the headlight switch is oper-
ated
●When a door is opened or closed
■If “Headlight System Malfunc-
tion Visit Your Dealer” is dis-
played on the multi-information
display
The system may be malfunctioning.
Have the vehicle inspected by your
Toyota dealer.
■Welcome light illumination con-
trol
The parking lights and tail lights
automatically turn on at night when
the doors are un locked using the
entry function or wireless remote
control if the light switch is in the
position.
■Customization
Settings (e.g. light sensor sensitiv-
ity) can be changed.
(Customizable features: P.548)