service TOYOTA SIENNA HYBRID 2023 Owners Manual

4TABLE OF CONTENTS
5-3. Using the storage featuresList of storage features . 366
Luggage compartment fea- tures ............................ 372
5-4. Using the other interior fea- tures
Other interior features ... 374
Garage door opener...... 388
6-1. Maintenance and care Cleaning and protecting the vehicle exterior ............ 396
Cleaning and protecting the vehicle interior ............. 399
6-2. Maintenance Maintenance requirements.................................... 402
General maintenance.... 404
Emission inspection and maintenance (I/M) pro-
grams .......................... 406
6-3. Do-it-yourself maintenance Do-it-yourself service pre-cautions ....................... 408
Hood ............................. 410
Positioning a floor jack .. 412
Engine compartment ..... 413
12-volt battery ............... 419
Tires .............................. 421
Tire inflation pressure ... 435
Wheels ......... .................437
Air conditioning filter ...... 438
Cleaning the hybrid battery (traction battery) air intake
vents............................ 440Electronic key battery ....
444
Checking and replacing fuses ............................ 446
Light bulbs ..................... 448
7-1. Essential information Emergency flashers....... 456
If your vehicle has to be stopped in an emergency.................................... 457
If the vehicle is submerged or water on the road is rising.................................... 458
7-2. Steps to take in an emer- gency
If your vehicle needs to be towed ........................... 460
If you think something is wrong........................... 463
If a warning light turns on or a warning buzzer sounds
.................................... 464
If a warning message is dis- played .......................... 475
If you have a flat tire (vehi- cles without spare tire)480
If you have a flat tire (vehi- cles with spare tire) ..... 490
If the hybrid system will not start ............................. 499
If you lose your keys...... 500
If the fuel fille r door cannot
be opened ................... 50
1
I f th

e electronic key does not
operate properly .......... 502
6Maintenance and care
7When trouble arises

8
lessee if the vehicle is leased
• In response to an official request by the police, a court of law or a
government agency
• For use by Toyota in a lawsuit
• For research purposes where the data is not tied to a specific vehi-
cle or vehicle owner
 Recorded image information
can be erased by your Toyota
dealer.
The image recording function can
be disabled. However, if the func-
tion is disabled, data from when the
system operates will not be avail-
able.
To learn more about the vehi-
cle data collected, used and
shared by Toyota, please visit
www.toyota.com/privacyvts/
.
If your Toyota has Safety Con-
nect and if you have subscribed
to those services, please refer to
the Safety Connect Telematics
Subscription Service Agreement
for information on data collected
and its usage.
 To learn more about the vehi-
cle data collected, used and
shared by Toyota, please visit
www.toyota.com/privacyvts/
This vehicle is equipped with an
event data recorder (EDR). The
main purpose of an EDR is to
record, in certain crash or near
crash-like situations, such as an
air bag deployment or hitting a
road obstacle, data that will
assist in understanding how a
vehicle’s systems performed.
The EDR is designed to record
data related to vehicle dynamics
and safety systems for a short
period of time, typically 30 sec-
onds or less.
The EDR in this vehicle is
designed to record such data
as:
How various systems in your
vehicle were operating;
 Whether or not the driver and
passenger safety belts were
buckled/fastened;
 How far (if at all) the driver
was depressing the accelera-
tor and/or brake pedal; and,
 How fast the vehicle was trav-
eling.
These data can help provide a
better understanding of the cir-
cumstances in which crashes
and injuries occur.
NOTE: EDR data are recorded
by your vehicle only if a non-triv-
ial crash situation occurs; no
data are recorded by the EDR
under normal driving conditions
Usage of data collected
through Safety Connect
(U.S.mainland only)
Event data recorder

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

751-3. Emergency assistance
1
For safety and security
1-3.Emergency assistance
*: If equipped
Microphone
“SOS” button
LED light indicators
Subscribers have the following
Safety Connect services avail-
able:
 Automatic Collision Notifica-
tion
*
Helps drivers receive necessary
response from emergency service
providers. ( 
P.77)
*: U.S. Patent No. 7,508,298 B2
Stolen Vehicle Location
Helps drivers in the event of vehicle
theft. (
P.77)
Emergency Assistance Button
(“SOS”)
Connects drivers to response-cen-
ter support. ( 
P.77)
Enhanced Roadside Assis-
tance
Provides drivers various on-road
assistance. ( 
P.78)
Safety Connect*
Safety Connect is a sub-
scription-based telematics
service that uses Global
Positioning System (GPS)
data and embedded cellular
technology to provide
safety and security features
to subscribers. Safety Con-
nect is supported by
Toyota’s designated
response center, which
operates 24 hours per day, 7
days per week.
Safety Connect service is
available by subscription on
select, telematics hardware-
equipped vehicles.
By using the Safety Connect
service, you are agreeing to
be bound by the Telematics
Subscription Service Agree-
ment and its Terms and
Conditions, as in effect and
amended from time to time,
a current copy of which is
available at Toyota.com in
the United States,
Toyotapr.com in Puerto
Rico and Toyota.ca in Can-
ada. All use of the Safety
Connect service is subject
to such then-applicable
Terms and Conditions.
System components
Services
A
B
C

761-3. Emergency assistance
After you have signed the
Telematics Subscription Ser-
vice Agreement and are
enrolled, you can begin receiv-
ing services.
A variety of subscription terms
are available for purchase. Con-
tact your Toyota dealer, call the
following appropriate Customer
Experience Center or push the
“SOS” button in your vehicle for
further subscription details.
The United States
1-800-331-4331
Canada
1-888-869-6828
Puerto Rico
1-877-855-8377
■Safety Connect Services Infor-
mation
●Phone calls using the vehicle’s
Bluetooth® technology will not be
possible when Safety Connect is
active and in use.
●Safety Connect is available begin-
ning Fall 2009 on select Toyota
models (in the contiguous United
States only). Contact with the
Safety Connect response center
is dependent upon the telematics
device being in operative condi-
tion, cellular connection availabil-
ity, and GPS satellite signal
reception, which can limit the abil-
ity to reach the response center or
receive emergency service sup-
port. Enrollment and Telematics
Subscription Service Agreement
are required. A variety of subscrip-
tion terms are available; charges vary by subscription term selected
and location.
●Automatic Collision Notification,
Emergency Assistance and Stolen
Vehicle Location are available in
the United States, including
Hawaii and Alaska
, Puerto Rico
and Canada, and Enhanced
Roadside Assistance are avail-
able in the United States, Puerto
Rico and Canada.
●Automatic Collision Notification,
Emergency Assistance, Stolen
Vehicle and Enhanced Road
Assistance are not available in the
U.S. Virgin Islands.
For vehicles first sold in the U.S.
Virgin Islands, no Safety Connect
services will function in or outside
the U.S. Virgin Islands.
●Safety Connect services are not
subject to section 255 of the Tele-
communications Act and the
device is not TTY compatible.
■Languages
The Safety Connect response cen-
ter will offer suppor t in multiple lan-
guages. The Safety Connect system
will offer voice prompts in English,
Spanish, and French. Please indi-
cate your language of choice when
enrolling.
■When contacting the response
center
You may be unable to contact the
response center if the network is
busy.
When the power switch is turned
to ON, the red indicator light
comes on for 2 seconds then
turns off. Afterward, the green
indicator light comes on, indicat-
ing that the service is active.
Subscription
Safety Connect LED light
Indicators

771-3. Emergency assistance
1
For safety and security
The following indicator light pat-
terns indicate specific system
usage conditions:
Green indicator light on =
Active service
 Green indicator light flashing
= Safety Connect call in pro-
cess
 Red indicator light (except at
vehicle start-up) = System
malfunction (contact your
Toyota dealer)
 No indicator light (off) =
Safety Connect service not
active
■Automatic Collision Notifi-
cation
In case of either airbag deploy-
ment or severe rear-end colli-
sion, the system is designed to
automatically call the response
center. The responding agent
receives the vehicle’s location
and attempts to speak with the
vehicle occupants to assess the
level of emergency. If the occu-
pants are unable to communi-
cate, the agent automatically
treats the call as an emergency,
contacts the nearest emer-
gency services provider to
describe the situation, and
requests that assistance be sent
to the location.
■Stolen Vehicle Location
If your vehicle is stolen, Safety
Connect can work with local
authorities to assist them in
locating and recovering the
vehicle. After filing a police
report, call the Customer Experi-
ence Center at 1-800-331-4331
in the United States, 1-877-855-
8377 in Puerto Rico or 1-888-
869-6828 in Canada, and follow
the prompts for Safety Connect
to initiate this service.
In addition to assisting law
enforcement with recovery of a
stolen vehicle, Safety-Connect-
equipped vehicle location data
may, under certain circum-
stances, be shared with third
parties to locate your vehicle.
Further information is available
at Toyota.com in the United
States, Toyotapr.com in Puerto
Rico and Toyota.ca in Canada.
■Emergency Assistance But-
ton (“SOS”)
In the event of an emergency on
the road, push the “SOS” button
to reach the Safety Connect
response center. The answering
agent will determine your vehi-
cle’s location, assess the emer-
gency, and dispatch the
necessary assistance required.
If you accidentally press the “SOS”
button, tell the response-center
agent that you are not experiencing
an emergency.
Safety Connect services

781-3. Emergency assistance
■Enhanced Roadside Assis-
tance
Enhanced Roadside Assistance
adds GPS data to the already
included warranty-based Toyota
roadside service.
Subscribers can press the
“SOS” button to reach a Safety
Connect response-center agent,
who can help with a wide range
of needs, such as: towing, flat
tire, fuel delivery, etc. For a
description of the Enhanced
Roadside Assistance services
and their limitations, please see
the Safety Connect Terms and
Conditions, which are available
at Toyota.com in the United
States, Toyotapr.com in Puerto
Rico and Toyota.ca in Canada.
Important! Read this informa-
tion before using Safety Con-
nect.
■Exposure to radio fre-
quency signals
The Safety Connect system
installed in your vehicle is a low-
power radio transmitter and
receiver. It receives and also
sends out radio frequency (RF)
signals.
In August 1996, the Federal
Communications Commission
(FCC) adopted RF exposure
guidelines with safety levels for mobile wireless phones. Those
guidelines are consistent with
the safety standards previously
set by the following U.S. and
international standards bodies.

ANSI (American National
Standards Institute) C95.1
[1992]
 NCRP (National Council on
Radiation Protection and
Measurement) Report 86
[1986]
 ICNIRP (International Com-
mission on Non-Ionizing Radi-
ation Protection) [1996]
Those standards were based on
comprehensive and periodic
evaluations of the relevant sci-
entific literature. Over 120 scien-
tists, engineers, and physicians
from universities, and govern-
ment health agencies and
industries reviewed the avail-
able body of research to
develop the ANSI Standard
(C95.1).
The design of Safety Connect
complies with the FCC guide-
lines in addition to those stan-
dards.
Safety information for
Safety Connect

831-4. Hybrid system
1
For safety and security
The illustration is an example for explanation and may differ from the actual
item.
Warning label
Service plug
Rear electric motor (traction motor)
*
Hybrid battery (traction battery)
High voltage cables (orange)
Front electric motor (traction motor)
Power control unit
Air conditioning compressor
*: AWD models only
Hybrid system precautions
Take care when handling the hybrid system, as it is a high
voltage system (about 650V at maximum) as well as contains
parts that become extremely hot when the hybrid system is
operating. Obey the warning labels attached to the vehicle.
System components
A
B
C
D
E
F
G
H

841-4. Hybrid system
■Running out of fuel
When the vehicle has run out of fuel
and the hybrid system cannot be
started, refuel th e vehicle with at
least enough gasoline to make the
low fuel level warning light ( P.470)
go off. If there is only a small
amount of fuel, th e hybrid system
may not be able to start. (The stan-
dard amount of fuel is about 3.1 gal.
[11.9 L, 2.6 Imp. gal.], when the
vehicle is on a level surface. This
value may vary whe n the vehicle is
on a slope. Add ext ra fuel when the
vehicle is inclined.)
■Electromagnetic waves
●High voltage parts and cables on
Hybrid Electric Vehicles incorpo-
rate electromagnetic shielding,
and therefore emi t approximately
the same amount of electromag-
netic waves as conventional gaso-
line powered vehicles or home
electronic appliances.
●Your vehicle may cause sound
interference in so me third party-
produced radio parts.
■Hybrid battery (tr action battery)
The hybrid battery (traction battery)
has a limited service life. The lifes-
pan of the hybrid battery (traction
battery) can change in accordance
with driving style and driving condi-
tions.
WARNING
■High voltage precautions
This vehicle has high voltage DC
and AC systems as well as a 12-
volt system. DC and AC high volt-
age is very dangerous and can
cause severe burns and electric
shock that may result in death or
serious injury.
●Never touch, disassemble,
remove or replace the high volt-
age parts, cables or their con-
nectors.
●The hybrid system will become
hot after starting as the system
uses high voltage. Be careful of
both the high voltage and the
high temperature, and always
obey the warning labels
attached to the vehicle.
●Never try to open the service
plug access hole located under-
neath the console box. The ser-
vice plug is used only when the
vehicle is serviced and is sub-
ject to high voltage.
■Road accident cautions
Observe the following precautions
to reduce the risk of death or seri-
ous injury:
●Pull your vehicle off the road,
shift the shift le ver to P, apply
the parking brake, and turn the
hybrid system off.
●Do not touch the high voltage
parts, cables and connectors.
●If electric wires are exposed
inside or outside your vehicle,
an electric shock may occur.
Never touch exposed electric
wires.
●If a fluid leak occurs, do not
touch the fluid as it may be
strong alkaline electrolyte from
the hybrid battery (traction bat-
tery). If it comes into contact
with your skin or eyes, wash it
off immediately with a large
amount of water or, if possible,
boric acid solution. Seek imme-
diate medical attention.

851-4. Hybrid system
1
For safety and security
There are air intake vents under
the front seats with the purpose
WARNING
●If a fire occurs in the Hybrid
Electric Vehicle, leave the vehi-
cle as soon as possible. Never
use a fire extinguisher that is
not meant for electric fires.
Using even a small amount of
water may be dangerous.
●If your vehicle needs to be
towed, do so with four wheels
raised. If the wheels connected
to the electric motor (traction
motor) are on the ground when
towing, the motor may continue
to generate electricity. This may
cause a fire. (P.460)
●Carefully inspect the ground
under the vehicle. If you find
that liquid has leaked onto the
ground, the fuel system may
have been damaged. Leave the
vehicle as soon as possible.
■Hybrid battery (traction bat-
tery)
●Never resell, hand over or mod-
ify the hybrid battery. To prevent
accidents, hybrid batteries that
have been removed from a dis-
posed vehicle are collected
through Toyota dealer. Do not
dispose of the battery yourself.
Unless the battery is properly col-
lected, the follo wing may occur,
resulting in dea th or serious
injury:
• The hybrid battery may be ille- gally disposed of or dumped,
and it is hazardous to the envi-
ronment or someone may touch
a high voltage part, resulting in
an electric shock.
• The hybrid battery is intended to be used exclusively with your
Hybrid Electric Vehicle. If the
hybrid battery is used outside of
your vehicle or modified in any
way, accidents such as electric
shock, heat generation, smoke
generation, an explosion and
electrolyte leakage may occur.
When reselling or handing over
your vehicle, the possibility of an
accident is extremely high
because the person receiving the
vehicle may not be aware of these
dangers.
●If your vehicle is disposed of
without the hybrid battery hav-
ing been removed, there is a
danger of serious electric shock
if high voltage parts, cables and
their connectors are touched. In
the event that your vehicle must
be disposed of, the hybrid bat-
tery must be disposed of by
your Toyota dealer or a qualified
service shop. If the hybrid bat-
tery is not disposed of properly,
it may cause electric shock that
can result in dea th or serious
injury.
NOTICE
■Hybrid battery (traction bat-
tery)
Do not carry large amounts of
water such as water cooler bottles
in the vehicle. If water spills onto
the hybrid battery (traction bat-
tery), the battery may be dam-
aged. Have the vehicle inspected
by your Toyota dealer.
Hybrid battery (traction
battery) air intake vents