2021 TOYOTA SIENNA HYBRID radio

1453-2. Opening, closing and locking the doors
3
Before driving
object, such as a ball, moves
under the rocker moulding
●When an object is moved from
under the rocker moulding
●If someone is swinging their legs
while sitting on the rocker mould-
ing
●If the legs or another part of some-
one’s body contacts the rocker
moulding while passing by the
vehicle
●When the vehicle is parked near
an electrical noise source which
affects the sensitivity of the Hands
Free Power Sliding 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 rocker mould-
ing
●If luggage, etc. is set near the
rocker moulding
●If accessories or a vehicle cover is
installed/removed near the rocker
moulding
●When the vehicle is being towed
To prevent unintentional operation,
turn the Hands Free Power Sliding
Door (kick sensor) operation setting
off. ( P.112)
■Automatic car washes
 P.400
■Conditions affecting the opera-
tion of the smart key system or
wireless remo te control
 P.166
■Customization
Settings (e.g. opening and closing
operation) can be changed. (Cus- tomizable features:
P.545)
WARNING
■Sliding door closer
●In the event that the sliding door
is left slightly open, the sliding
door closer will automatically
close it to the fu lly closed posi-
tion. It takes several seconds
before the sliding door closer
begins to operate. Be careful
not to catch fingers or anything
else in the sliding door, as this
may cause bone fractures or
other serious injuries.
●Use caution when using the
sliding door clos er. The sliding
door closer operates even when
the power sliding door system is
canceled.
■Power sliding doors
Observe the following precautions
when the power sliding door sys-
tem is enabled. Failure to do so
may cause death or serious
injury.
●Do not get in and out of the
vehicle while the power sliding
door is being operated.

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.

1663-2. Opening, closing and locking the doors
wireless remote control or the
mechanical key, to unlock the
doors.
■Turning an electronic key to
battery-saving mode
●When battery-saving mode is set,
battery depletion is minimized by
stopping the electronic key from
receiving radio waves.
Press twice while pressing
and holding .
Confirm that the electronic key indi-
cator flashes 4 times.
While the battery-saving mode is
set, the smart key system cannot be
used. To cancel the function, press
any of the electronic key buttons.
●Electronic keys that will not be
used for long periods of time can
be set to the battery-saving mode
in advance.
■Conditions affecting operation
The smart key system uses weak
radio waves. In the following situa-
tions, the communication between
the electronic key and the vehicle
may be affected, preventing the
smart key system, wireless remote
control and immobilizer system from
operating properly.
(Ways of coping: P.504)
●When the electronic key battery is
depleted
●Near a TV tower, electric power
plant, gas station , radio station,
large display, airpo rt or other facil-
ity that generates strong radio
waves or electrical noise
●When the electronic key is in con-
tact with, or is c overed by the fol-
lowing metallic objects
• Cards to which aluminum foil is
attached
• Cigarette boxes that have alumi-
num foil inside
• Metallic wallets or bags
•Coins
• Hand warmers made of metal
• Media such as CDs and DVDs
●When other wireless key (that
emits radio waves) is being used
nearby
●When carrying the electronic key
together with the following devices
that emit radio waves
• Portable radio, cellular phone, cordless phone or other wireless
communication devices
• Another vehicle’s electronic key or a wireless key that emits radio
waves
• Personal computers or personal digital assistants (PDAs)
• Digital audio players
• Portable game systems
●If window tint wit h a metallic con-
tent or metallic objects are
attached to the rear window
●When the electronic key is placed
near a battery charger or elec-
tronic devices
●When parking in a coin-operated
parking lot (Radio waves used to
detect vehicles may affect the
smart key system.)
■Note for the entry function
●Even when the electronic key is
within the effective range (detec-
tion areas), the system may not
operate properly in the following
cases:
• The electronic key is too close to
the window or outside door han-
dle, near the ground, or in a high
place when the doors are locked
or unlocked.
• The electronic key is on the instru- ment panel, or floor, or in the door
pockets or glove box when the

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.

1953-4. Adjusting the steering wheel and mirrors
3
Before driving
SymptomLikely causeSolution
The image is difficult to
see.
The mirror surface is
dirty.Clean the mirror surface
gently, using a soft dry
cloth.
Sunlight or headlights
are shining directly into
the Digital Rear-view
Mirror.
Change to optical mirror
mode.
(If the light is coming
through the moon roof [if
equipped], close the
sunshade.)
• T h e v e h i c l e i s i n a d a r k area.
• The vehicle is near a TV tower, broadcast-
ing station, electric
power plant, or other
location where strong
radio waves or electri-
cal noise may be pres-
ent.
• The temperature around the camera is
extremely high/low.
• The ambient tempera- ture is extremely low.
• It is raining or humid.
• Sunlight or headlights are shining directly into
the camera lens.
• The vehicle is under fluorescent lights,
sodium lights, mer-
cury lights, etc.
• Exhaust gas is obstructing the cam-
era.
Change to optical mirror
mode.
(Change back to digital
mirror mode when the
conditions have
improved.)

2724-5. Using the driving support systems
the entrance of a curve
• When there are patterns or paint in front of your vehicle that may be
mistaken for a detectable object
• When the front of your vehicle is
hit by water, snow, dust, etc.
• When overtaking a detectable object that is ch anging lanes or
making a right/left turn
• When passing a detectable object in an oncoming lane that is
stopped to make a right/left turn
• When a detectable object approaches very close and then
stops before entering the path of
your vehicle
• If the front of your vehicle is raised or lowered, such as when on an
uneven or undulating road surface
• When driving on a road sur- rounded by a structure, such as in
a tunnel or on an iron bridge
• When there is a metal object (manhole cover, steel plate, etc.),
steps, or a protrusion in front of your vehicle
• When passing under an object (road sign, billboard, etc.)
• When approaching an electric toll gate barrier, parking area barrier,
or other barrier that opens and
closes
• When using an automatic car
wash
• When driving through or under objects that may contact your
vehicle, such as thick grass, tree
branches, or a banner
• When driving through steam or smoke
• When driving near an object that
reflects radio waves, such as a
large truck or guardrail
• When driving near a TV tower,
broadcasting station, electric
power plant, or other location
where strong radio waves or elec-
trical noise may be present
■Situations in which the system
may not operate properly
●In some situations such as the fol-
lowing, an object may not be
detected by the radar sensor and
front camera, pre venting the sys-
tem from opera ting properly:
• When a detectable object is approaching your vehicle
• When your vehicle or a detectable object is wobbling