2023 TOYOTA SIENNA HYBRID sensor

401-1. For safe use
■Replacing the belt after the pre-
tensioner has been activated
If the vehicle is in volved in multiple
collisions, the pretensioner will acti-
vate for the first collision, but will not
activate for the second or subse-
quent collisions.
■PCS-linked seat belt preten-
sioner control
If the PCS (Pre-Collision System)
determines that the possibility of a
collision with a vehicle is high, the
seat belt pretens ioners will be pre-
pared to operate.
WARNING
■Seat belt pretensioners
Observe the following precautions
to reduce the risk of injury in the
event of sudden braking, sudden
swerving or an accident.
Failure to do so may cause death
or serious injury.
●Do not place anything, such as
a cushion, on the front passen-
ger’s seat.
Doing so will disperse the pas-
senger’s weight, which prevents
the sensor from detecting the
passenger’s weight properly. As
a result, the seat belt preten-
sioner for the front passenger’s
seat may not activate in the
event of a collision.
●If the pretensioner has acti-
vated, the SRS warning light will
come on. In that case, the seat
belt cannot be used again and
must be replaced at your Toyota
dealer.

421-1. For safe use
SRS curtain shield airbags
• Can help protect primarily the head of occupants in the outer seats
• Can help prevent the occupants from being thrown from the vehi cle in the
event of vehicle rollover
SRS second seat side airbags
Can help protect the torso of occ upants in the second outer seats
■SRS airbag system components
Front impact sensors
“AIR BAG ON” and “AIR BAG OFF” indicator lights
Front passenger airbag
Side impact sensors (front door)
Curtain shield airbags
Seat belt pretensioners and force limiters
Side impact sensors (front)
Side airbags (front seats)
Front passenger’s seat cushion airbag
Front passenger’s seat belt buckle switch
Side airbags (second outboard seats)
E
F
A
B
C
D
E
F
G
H
I
J
K

431-1. For safe use
1
For safety and security
Side impact sensors (rear)
Driver’s seat belt buckle switch
Driver’s seat position sensor
Driver airbag
Front passenger occupant classification sensors
Driver’s knee airbag
SRS warning light
Airbag sensor assembly
Your vehicle is equipped with ADVANCED AIRBAGS designed
based on the US motor vehicle safety standards (FMVSS208). The
airbag sensor assembly (ECU) cont rols airbag deployment based on
information obtained from the sensors etc. shown in the system
components diagram above. This in formation includes crash sever-
ity and occupant information. As the airbags deploy, a chemical
reaction in the inflators quickly fills the airbags with non-toxic gas to
help restrain the motion of the occupants.
■If the SRS airbags deploy
(inflate)
●Slight abrasions, burns, bruising
etc., may be sustained from SRS
airbags, due to the extremely high
speed deployment (inflation) by
hot gases.
●A loud noise and white powder will
be emitted.
●Parts of the airbag module (steer-
ing wheel hub, airbag cover and
inflator) as well as the front seats,
parts of the front and rear pillars,
and roof side rails, may be hot for
several minutes. T he airbag itself
may also be hot.
●The windshield may crack.
●The hybrid system will be stopped
and fuel supply to the engine will
be stopped. ( P.86)
●All of the doors will be unlocked.
( P.134)
●The brakes and st op lights will be
controlled automatically. (
 P.336)
●The interior lights will turn on auto-
matically. ( P.365)
●The emergency flashers will turn
on automatically. ( P.456)
●For Safety Connect subscribers, if
any of the following situations
occur, the system is designed to
send an emergency call to the
response center, notifying them of
the vehicle’s location (without
needing to push the “SOS” button)
and an agent will attempt to speak
with the occupants to ascertain
the level of emergency and assis-
tance required. If the occupants
are unable to communicate, the
agent automatically treats the call
as an emergency and helps to dis-
patch the necessary emergency
services. ( P.75)
• An SRS airbag is deployed.
• A seat belt pretensioner is acti- vated.
• The vehicle is involved in a severe rear-end collision.
L
M
N
O
P
Q
R
S

861-4. Hybrid system
of cooling the hybrid battery
(traction battery).
If the vents are blocked, it may
interfere with the cooling of the
hybrid battery (traction battery).
If input/output of the hybrid battery
(traction battery) becomes limited
and the distance that the vehicle
can be driven using the electric
motor (traction motor) is reduced,
the fuel economy may be reduced.
When a certain level of impact is
detected by the impact sensor,
the emergency shut off system
blocks the high voltage current
and stops the fuel pump to mini-
mize the risk of electrocution
and fuel leakage. If the emer-
gency shut off system activates,
your vehicle will not restart. To
restart the hybrid system, con-
tact your Toyota dealer.
A message is automatically dis-
played when a malfunction
occurs in the hybrid system or
an improper operation is
attempted.
If a warning message is shown
on the multi-information display,
read the message and follow the
instructions.
■If a warning light comes on, a
warning message is displayed,
or the 12-volt battery is discon-
nected
The hybrid system may not start. In
NOTICE
■Hybrid battery (traction bat-
tery) air intake vents
●Make sure not to block the air
intake vents with anything, such
as a seat cover, plastic cover, or
luggage. The input/output of the
hybrid battery (traction battery)
may be restricted, leading to a
reduction in hybrid battery (trac-
tion battery) output and a mal-
function.
●Periodically clean the air intake
vents to prevent them from clog-
ging. ( P.440)
●Do not get water or foreign
materials in the air intake vents
as this may cause a short circuit
and damage the hybrid battery
(traction battery).
Emergency shut off sys-
tem
Hybrid warning message

1152-1. Instrument cluster
2
Vehicle status information and indicators
Select to change each notification
method used to warn the driver
when the system recognizes
excess speed, no overtaking and
no-entry sign.
• “Notification Level”
Select to change e ach notification
level used to warn the driver when
the system recognizes a speed limit
sign.
 RCD (Rear Camera
Detection) (if equipped)
( P.320)
• RCD (Rear Camera Detection)
on/off
Select to enable/disable the RCD
function.
•“Volume”
Select to change the RCD buzzer
volume.
■ Vehicle Settings
 PSD (Power Sliding
Doors) ( P.137)
Select to set up the following items.
• “Left Hands Free PSD” (if
equipped)
Select to enable/disable the left-
hand power sliding door kick sen-
sor.
• “Right Hands F ree PSD” (if
equipped)
Select to enable/d isable the right-
hand power sliding door kick sen-
sor.
• “Left PSD Alert Volume”
Select to set the volume of the
buzzer which sounds when the left-
hand power sliding door system operates.
• “Right PSD Alert Volume”
Select to set the volume of the
buzzer which sounds when the
right-hand power sliding door sys-
tem operates.

PBD (Power Back Door)
(if equipped) ( P.153)
Select to set up t he following items.
• PBD (Power Back Door) on/off
Select to enable/disable the power
back door system.
• “Hands Free”
Select to enable/disable the kick
sensor.
• “PBD Opening Adjustment”
Select the open position when
power back door is fully open.
•“Volume”
Select to set the volume of the
buzzer which sounds when the
power back door system operates.
 Rear Seat Reminder
( P.134)
Select to enable/disable the rear
seat reminder function.
“TPWS Setting” (Tire Pres-
sure Warning System)
( P.424)
• “Setting Pressure”
Select to initialize the tire pressure
warning system.
• “Identifying Each Wheel & Posi- tion”
Select to register the ID codes of
the tire pressure se nsors to the tire
pressure warning system.

1162-1. Instrument cluster
Select to change the tire pressure
warning system sensor ID code set.
To enable this function, a second
set of tire pressure warning system
sensor ID codes must be registered
by a Toyota dealer. For information
regarding changing the registered
ID code set, contact your Toyota
dealer.
• “Setting UNIT”
Select to change the units of the
tire pressure displayed.
 “Scheduled Maintenance”
( P.403)
Select to reset the scheduled main-
tenance information (message indi-
cating maintenance is required and
distance until the next mainte-
nance) after all maintenance is per-
formed.
“Oil Maintenance” ( P.415)
Select to reset the Oil maintenance.
■ Meter Settings
 “Language”
Select to change the language on
the multi-inform ation display.
“Units”
Select to change t he units of mea-
sure displayed.
 Digital Speed (7-inch display)
Select to enable/disable the speed-
ometer display.
 EV indicator ( P.80)
Select to enable/disable the EV
indicator.
 Driving information display
settings
Select to set up t he following items.
• “Hybrid System”
Select to enable/disable the ECO
Accelerator Guidance (P.108).
• “Fuel Economy”
Select to change the average fuel
economy display ( P.106).
 Audio settings
Select to enable/disable the audio
system-linked display.
 Vehicle information dis-
play settings
• “Display Contents”
Select to displa y the following
items.
“Energy monitor”
Select to enable/disable the Energy
monitor ( P.122)
“AWD” (AWD models)
Select to enable /disable the AWD
system display ( P.112).
• “Drive Info Type” (4.2-inch dis- play)
Select to change the drive informa-
tion type between trip and total
(  P.111).
• “Drive Info Items” (4.2-inch dis- play)
Select to set the items on the upper
and lower side of the drive informa-
tion screen. from th ree items, aver-
age speed, distance and total time.
 “Trip Summary” (4.2-inch dis-
play)
Select to set the items displayed
when the power switch is turned off.
“Pop-Up Display”

1323-2. Opening, closing and locking the doors
3-2.Opening, closing and locking the doors
■Using the entry function (if
equipped)
Carry the electronic key to
enable this function.
1 Grip the driver’s door handle
to unlock the door. Holding
the driver’s door handle for
approximately 2 seconds
unlocks all the doors.
Grip the front passenger’s
door handle to unlock all the
doors
*.
Make sure to touch the sensor on
the back of the handle.
The doors cannot be unlocked for 3
seconds after the doors are locked.
*: The door unlock settings can be
changed. ( P.133)
2 Touch the lock sensor (the indentation on the upper part
of the door handle) to lock
the doors.
Check that the d
oor is securely
locked.
■Using the wireless remote
control
Vehicles with power back
door
1 Locks all the doors
Check that the d oor is securely
locked.
2 Unlocks 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 must be customized at your Toyo ta dealer.
*2: If equipped
Front doors
The vehicle can be locked
and unlocked using the
entry function (if equipped),
wireless remote control, key
or door lock switch.
Unlocking and locking the
doors from the outside

1343-2. Opening, closing and locking the doors
( P.89)
■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 when 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.502)
●Replace the key battery with a
new one if it is depleted. ( P.444)
■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, 502)
■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.