TOYOTA SIENNA HYBRID 2023 Owners Manual

SIENNA_OM_OM08050U_(U)
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Pictorial indexSearch by illustration
For safety
and securityMake sure to read through them
(Main topics: Child seat, theft deterrent system)
Vehicle status
information and
indicatorsReading driving-related information
(Main topics: Meters, multi-information display)
Before driving
Opening and closing the doors and windows,
adjustment before driving
(Main topics: Keys, doors, seats, power windows)
Driving
Operations and advice which are necessary for
driving
(Main topics: Starting hybrid system, refueling)
Interior featuresUsage of the interior features
(Main topics: Air conditioner, storage features)
Maintenance
and careCaring for your vehicle and maintenance
procedures
(Main topics: Interior and exterior, light bulbs)
When trouble
arisesWhat to do in case of malfunction and emergency
(Main topics: 12-volt battery discharge, flat tire)
Vehicle
specificationsVehicle specifications, customizable features
(Main topics: Fuel, oil, tire inflation pressure)
For ownersReporting safety defects for U.S. owners, and seat
belt and SRS airbag instructions for Canadian
owners
IndexSearch by symptom
Search alphabetically

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 .......... 165
3-3. Adjusting the seats Front seats .................... 170
Rear seats ..................... 172
Driving position memory 179
Head restraints .............. 183
3-4. Adjusting the steering wheel and mirrors
Steering wheel............... 186
Inside rear view mirror ... 187
Digital Rear-view Mirror . 189
Outside rear view mirrors .................................... 199
3-5. Opening, closing the win- dows and moon roof
Power windows ............. 202
Moon roof ...................... 205
1For safety and security
2
Vehicle status
information and
indicators
3Before driving

3TABLE OF CONTENTS
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4-1. Before drivingDriving the vehicle......... 210
Cargo and luggage ....... 217
Vehicle load limits ......... 220
Trailer towing (without towing package) ..................... 221
Trailer towing (with towing package) ..................... 222
Dinghy towing ............... 232
4-2. Driving procedures Power (ignition) switch .. 234
EV drive mode .............. 239
Hybrid transmission ...... 241
Turn signal lever ........... 245
Parking brake ................ 246
Brake Hold .................... 249
4-3. Operating the lights and wipers
Headlight switch ............ 251
AHB (Automatic High Beam) .................................... 253
Fog light switch ............. 257
Windshield wipers and washer......................... 257
Rear window wiper and washer......................... 260
4-4. Refueling Opening the fuel tank cap.................................... 262
4-5. Using the driving support
systems
Toyota Safety Sense 2.0 265
PCS (Pre-Collision System) .................................... 270LTA (Lane Tracing Assist)
.................................... 278
RSA (Road Sign Assist) 288
Dynamic radar cruise control with full-speed range ... 291
BSM (Blind Spot Monitor) .................................... 302
Intuitive parking assist ... 312
RCD (Rear Camera Detec- tion) function ................ 320
PKSB (Parking Support Brake) .......................... 324
Parking Support Brake func- tion (static objects) ...... 329
Parking Support Brake func- tion (rear-crossing vehicles).................................... 332
Driving mode s elect switch
.................................... 334
Driving assist systems ... 335
4-6. Driving tips Hybrid Electric Vehicle driv-ing tips ......................... 342
Winter driving tips .......... 344
5-1. Using the ai r conditioning
system and defogger
Front automatic air condition- ing system ................... 348
Re ar automatic air condition-
i n

g system ................... 358
Heated steering wheel/seat heaters/seat ventilators 361
5-2. Using the interior lights Interior lights list ............ 363
4Driving
5Interior features

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
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I f th

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

5TABLE OF CONTENTS
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If the 12-volt battery is dis-charged ....................... 504
If your vehicle overheats 509
If the vehicle becomes stuck .................................... 512
8-1. Specifications Maintenance data (fuel, oil level, etc.) .................... 516
Fuel information ............ 526
Tire information ............. 528
8-2. Customization Customizable features .. 538
8-3. Initialization Items to initialize ........... 551
9-1. For owners Reporting safety defects for U.S. owners................. 554
Reporting safety defects for Canadian owners ........ 555
Seat belt instructions for Canadian owners (in
French) ........................ 555
SRS airbag instructions for Canadian owners (in
French) ........................ 557
What to do if... (Trouble- shooting) .................... 566
Alphabetical Index ........ 569
8Vehicle specifications
9For owners
Index

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Please note that this manual
applies to all models and
explains all equipment, including
options. Therefore, you may find
explanations for equipment not
installed on your vehicle and the
illustrations used may differ from
your vehicle.
All specifications provided in this
manual are current at the time of
printing. Over time, your vehicle
may receive updates that modify
the vehicle and make material in
this manual incomplete and/or
inaccurate. Because of Toyota’s
interest in continual product
improvement, Toyota reserves
the right to make changes to this
manual at any time without
notice.
If Toyota chooses to update the
manual, updated versions can
be viewed by selecting your
vehicle by model and year at the
following URL or on your mobile
device if you have access to the
Toyota app.
www.toyota.com/owners
Approximately five hours after
the hybrid system is turned off, you may hear sound coming
from under the vehicle for sev-
eral minutes. This is the sound
of a fuel evaporation leakage
check and, it does not indicate a
malfunction.
A wide variety of non-genuine
spare parts and accessories for
Toyota vehicles are currently
available in the market. You
should know that Toyota does
not warrant these products and
is not responsible for their per-
formance, repair, or replace-
ment, or for any damage they
may cause to, or adverse effect
they may have on, your Toyota
vehicle.
This vehicle should not be modi-
fied with non-genuine Toyota
products. Modification with non-
genuine Toyota products could
affect its performance, safety or
durability, and may even violate
governmental regulations. In
addition, damage or perfor-
mance problems resulting from
the modification may not be cov-
ered under warranty.
Also, remodeling like this will
have an effect on advanced
safety equipment such as
Toyota Safety Sense 2.0 and
there is a danger that it will not
For your information
Main Owner’s Manual
Noise from under vehicle
after turning off the hybrid
system
Accessories, spare parts
and modification of your
Toyota

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work properly or the danger that
it may work in situations where it
should not be working.
The installation of a mobile two-
way radio system in your vehicle
could affect electronic systems
such as:
Hybrid system
 Multiport fuel injection sys-
tem/sequential multiport fuel
injection system
 Toyota Safety Sense 2.0
 Anti-lock brake system
 SRS airbag system
 Seat belt pretensioner system
Be sure to check with your
Toyota dealer for precautionary
measures or special instructions
regarding installation of a mobile
two-way radio system.
High voltage parts and cables
on the Hybrid Electric Vehicles
emit approximately the same
amount of electromagnetic
waves as the conventional gas-
oline powered vehicles or home
electronic appliances despite of
their electromagnetic shielding.
Unwanted noise may occur in
the reception of the mobile two-
way radio. The vehicle is equipped with
sophisticated computers that will
record certain data, such as:
• Engine speed/ Electric motor
speed (traction motor speed)
• Accelerator status
• Brake status
• Vehicle speed
• Operation status of the driving assist systems
• Images from the cameras Your vehicle is equipped with
cameras. Contact your
Toyota dealer for the location
of recording cameras.
The recorded data varies
according to the vehicle grade
level and options with which it is
equipped.
These computers do not record
conversations or sounds, and
only record images outside of
the vehicle in certain situations.
 Data Transmission
Your vehicle may transmit the data
recorded in these computers to
Toyota without notification to you.
Data usage
Toyota may use the data recorded
in this computer to diagnose mal-
functions, conduct research and
development, and improve quality.
Toyota will not disclose the
recorded data to a third party
except:
• With the consen t of the vehicle
owner or with the consent of the
Installation of a mobile
two-way radio system
Vehicle data recording

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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

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and no personal data (e.g.,
name, gender, age, and crash
location) are recorded. How-
ever, other parties, such as law
enforcement, could combine the
EDR data with the type of per-
sonally identifying data rou-
tinely acquired during a crash
investigation.
To read data recorded by an
EDR, special equipment is
required, and access to the
vehicle or the EDR is needed. In
addition to the vehicle manufac-
turer, other parties, such as law
enforcement, that have the spe-
cial equipment, can read the
information if they have access
to the vehicle or the EDR.
Disclosure of the EDR data
Toyota will not disclose the data
recorded in an EDR to a third party
except when:
• An agreement from the vehicle’s
owner (or the less ee for a leased
vehicle) is obtained
• In response to an official request by the police, a court of law or a
government agency
• For use by Toyota in a lawsuit
However, if necessary, Toyota
may:
• Use the data for research on vehicle safety performance
• Disclose the data to a third party for research purposes without
disclosing information about the
specific vehicle or vehicle owner
The SRS airbag and seat belt
pretensioner devices in your
Toyota contain ex plosive chemi-
cals. If the vehicle is scrapped
with the airbags and seat belt
pretensioners left as they are,
this may cause an accident such
as fire. Be sure to have the sys-
tems of the SRS airbag and seat
belt pretensioner removed and
disposed of by a qualified ser-
vice shop or by your Toyota
dealer before you scrap your
vehicle.
Special handling may apply,
See www.dtsc.ca.gov/
hazardouswaste/perchlorate.
Your vehicle has components
that may contain perchlorate.
These components may include
the airbags, seat belt preten-
sioners, wireless remote control
batteries, and the batteries in
the tire pressure warning valve
and transmitters.
The word “QR Code” is regis-
tered trademark of DENSO
WAVE INCORPORATED in
Japan and other countries.
Scrapping of your Toyota
Perchlorate Material
“QR Code”

10
WARNING
■General precautions while
driving
Driving under the influence: Never
drive your vehicle when under the
influence of alcohol or drugs that
have impaired your ability to oper-
ate your vehicle. Alcohol and cer-
tain drugs delay reaction time,
impair judgment and reduce coor-
dination, which could lead to an
accident that could result in death
or serious injury.
Defensive drivin g: Always drive
defensively. Anticipate mistakes
that other drivers or pedestrians
might make and be ready to avoid
accidents.
Driver distraction: Always give
your full attention to driving. Any-
thing that distracts the driver,
such as adjusting controls, talking
on a cellular phone or reading can
result in a collision with resulting
death or serious injury to you,
your occupant s or others.
■General precaution regarding
children’s safety
Never leave children unattended
in the vehicle, and never allow
children to have or use the key.
Children may be able to start the
vehicle or shift the vehicle into
neutral. There is also a danger
that children may injure them-
selves by playing with the side
windows, the moon roof or other
features of the vehicle. In addi-
tion, heat build-up or extremely
cold temperatures inside the vehi-
cle can be fatal to children.