tow TOYOTA SIENNA HYBRID 2021 Owners Manual (in English)

3TABLE OF CONTENTS
1
2
3
4
5
6
7
8
9
4-1. Before drivingDriving the vehicle......... 208
Cargo and luggage ....... 215
Vehicle load limits ......... 218
Trailer towing (without tow- ing package)................ 219
Trailer towing (with towing package) ..................... 220
Dinghy towing ............... 230
4-2. Driving procedures Power (ignition) switch .. 231
EV drive mode .............. 236
Hybrid transmission ...... 238
Turn signal lever ........... 242
Parking brake ................ 243
Brake Hold .................... 246
4-3. Operating the lights and wipers
Headlight switch ............ 248
AHB (Automatic High Beam) .................................... 250
Fog light switch ............. 254
Windshield wipers and washer......................... 254
Rear window wiper and washer......................... 257
4-4. Refueling Opening the fuel tank cap.................................... 259
4-5. Using the driving support
systems
Toyota Safety Sense 2.0 262
PCS (Pre-Collision System) .................................... 267LTA (Lane Tracing Assist)
.................................... 275
RSA (Road Sign Assist) 285
Dynamic radar cruise control with full-speed range ... 288
BSM (Blind Spot Monitor) .................................... 299
Intuitive parking assist ... 308
RCD (Rear Camera Detec- tion) function ................ 315
PKSB (Parking Support Brake) .......................... 319
Parking Support Brake func- tion (static objects) ...... 323
Parking Support Brake func- tion (rear-crossing vehicles).................................... 329
Driving mode s elect switch
.................................... 333
Driving assist systems ... 335
4-6. Driving tips Hybrid vehicle driving tips.................................... 341
Winter driving tips .......... 343
5-1. Using the ai r conditioning
system and defogger
Front automatic air condition- ing system ................... 348
Re ar automatic air condition-
i

ng 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...... 392
6-1. Maintenance and care Cleaning and protecting the vehicle exterior ............ 400
Cleaning and protecting the vehicle interior ............. 403
6-2. Maintenance Maintenance requirements.................................... 406
General maintenance.... 407
Emission inspection and maintenance (I/M) programs.................................... 410
6-3. Do-it-yourself maintenance Do-it-yourself service precau-tions............................. 411
Hood ............................. 413
Positioning a floor jack .. 415
Engine compartment ..... 416
12-volt battery ............... 422
Tires .............................. 424
Tire inflation pressure ... 438
Wheels ......... .................440
Air conditioning filter ...... 441
Cleaning the hybrid battery (traction battery) air intake
vents and filters ........... 443Electronic key battery ....
447
Checking and replacing fuses .................................... 449
Light bulbs ..................... 451
7-1. Essential information Emergency flashers....... 458
If your vehicle has to be stopped in an emergency.................................... 459
If the vehicle is trapped in ris- ing water ...................... 460
7-2. Steps to take in an emer- gency
If your vehicle needs to be
towed ........................... 462
If you think something is wrong........................... 465
If a warning light turns on or a warning buzzer sounds 466
If a warning message is dis- played .......................... 477
If you have a flat tire (vehicles without spare tire) ........ 481
If you have a flat tire (vehicles with spare tire) ............. 491
If the hybrid system will not start ............................. 501
If you lose your keys...... 502
If the fuel filler door cannot be opened ......... ...............503
If the electronic key does not operate properly .......... 50
4
If the 12-
volt battery is dis-
charged ....................... 506
If your vehicle overheats 511
6Maintenance and care
7When trouble arises

21Pictorial index
■Instrument panel
Power switch ................................................... ...................P.231
Starting the hybrid system/chan ging the modes ..........P.231, 234
Emergency stop of the hybrid system ............................ ......P.459
When the hybrid system will not start .......................... ........P.501
Warning messages ..............................................................P.477
Shift lever.................................................... ........................P.238
Changing the shift position.................................... ...............P.239
Precautions against towing ..................................................P.462
When the shift lever does not move............................. ........P.240
Meters ......................................................... ..................P.97, 101
Reading the meters/adjusting the instrument panel
light .......................................................... ........P.97, 99, 101, 103
Warning lights/indicator lights ................................ ................P.92
When the warning lights come on ................................ ........P.466
Multi-information display . .................................................P.104
Display .................................................................................P.104A
B
C
D

381-1. For safe use
3Push into until a click
sound is heard.
Plate “B”
Buckle “B”
1 To release , press the
release button on .
Plate “B”
Buckle “B”
2 To release , insert the key
( P.128) or into the hole
on .
Retract the belt slowly when releas- ing and stowing the seat belt.
Plate “A”
Plate “B”
Buckle “A”
3 Insert the seat belt plates (
and ) into the holder on
the roof as shown.
Plate “A”
Plate “B”
■Emergency locking retractor
(ELR)
The retractor will lock the belt during
a sudden stop or on impact. It may
also lock if you lean forward too
quickly. A slow, easy motion will
allow the belt to extend so that you
can move around fully.
Releasing and stowing
the seat belt (for the third
center seat)
AB
A
B
A
B
A
B
A
B
C
A
B
C
A
B
A
B

471-1. For safe use
1
For safety and security
WARNING
●The SRS driver airbag deploys
with considerable force, and
can cause death or serious
injury especially i f the driver is
very close to the airbag. The
National Highway Traffic Safety
Administration (NHTSA)
advises: Since the risk zone for
the driver’s airbag is the first 2 -
3 in. (50 - 75 mm) of inflation,
placing yourself 10 in. (250 mm)
from your driver airbag provides
you with a clear margin of
safety. This distance is mea-
sured from the center of the
steering wheel to your breast-
bone. If you sit less than 10 in.
(250 mm) away now, you can
change your driving position in
several ways:
• Move your seat to the rear as far as you can while still reach-
ing the pedals comfortably.
• Slightly recline the back of the seat.
Although vehicle designs vary,
many drivers can achieve the
10 in. (250 mm) distance, even
with the driver seat all the way
forward, simply by reclining the
back of the seat somewhat. If
reclining the back of your seat
makes it hard to see the road,
raise yourself by using a firm,
non-slippery cushion, or raise
the seat if your vehicle has that
feature.
• If your steering wheel is adjust- able, tilt it downward. This
points the airbag toward your
chest instead of your head and
neck.
The seat should be adjusted as
recommended by NHTSA above,
while still maintaining control of
the foot pedals, steering wheel,
and your view of the instrument
panel controls.
●If the seat belt extender has
been connected to the front
seat belt buckles but the seat
belt extender has not also been
fastened to the latch plate of the
seat belt, the SRS front airbags
will judge that the driver and
front passenger are wearing the
seat belt even though the seat
belt has not been connected. In
this case, the SRS front airbags
may not activate correctly in a
collision, resulting in death or
serious injury in the event of a
collision. Be su re to wear the
seat belt with the seat belt
extender.
●The SRS front passenger air-
bag also deploys with consider-
able force, and can cause death
or serious injury especially if the
front passenger is very close to
the airbag. The front passenger
seat should be as far from the
airbag as possible with the seat-
back adjusted, so the front pas-
senger sits upright.
●Improperly seated and/or
restrained infants and children
can be killed or seriously injured
by a deploying airbag. An infant
or child who is too small to use
a seat belt should be properly
secured using a child restraint
system. Toyota strongly recom-
mends that all infants and chil-
dren be placed in the rear seats
of the vehicle and properly
restrained. The rear seats are
safer for infants and children
than the front passenger seat.
(  P.58)

481-1. For safe use
WARNING
●Do not sit on the edge of the
seat or lean against the dash-
board.
●Do not allow a child to stand in
front of the SRS front passenger
airbag unit or sit on the knees of
a front passenger.
●Do not allow the front seat occu-
pants to hold items on their
knees.
●Do not lean against the door,
the roof side rail or the front,
side and rear pillars.
●Do not allow anyone to kneel on
the passenger seats toward the
door or put their head or hands
outside the vehicle.
●Do not attach anything to or
lean anything against areas
such as the dashboard, steering
wheel pad and lower portion of
the instrument panel.
These items can become pro-
jectiles when the SRS driver,
front passenger and driver’s
knee airbags deploy.
●Do not attach anything to areas
such as a door, windshield, side
windows, front or rear pillar, roof
side rail and assist grip.

661-2. Child safety
and forth to ensure that it is
installed securely. (P.67)
■Booster seat
1 If installing the child restraint
system to the front passen-
ger seat is unavoidable, refer
to P.61for front passenger
seat adjustment.
2 High back type: If the head
restraint interferes with your
child restraint system, and
the head restraint can be
removed, remove the head
restraint. Otherwise, put the
head restraint in the upper
most position. ( P.182)
3 Place the child restraint sys-
tem on the seat facing the
front of the vehicle.
Booster type
High back type 4
Sit the child in the child
restraint system. Fit the seat
belt to the child restraint sys-
tem according to the manu-
facturer’s instructions and
insert the plate into the
buckle. Make sure that the
belt is not twisted.
Check that the sh oulder belt is cor-
rectly positioned over the child’s
shoulder and that the lap belt is as
low as possible. ( P.35)
■Removing a child restraint
system installed with a seat
belt
Press the buckle release button
and fully retract the seat belt.
When releasing the buckle, the
child restraint system may spring
up due to the rebo und of the seat
cushion. Release the buckle while
holding down the child restraint
system.
Since the seat belt automatically
reels itself, slowly return it to the
stowing position.

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

851-4. Hybrid system
1
For safety and security
There are air intake vents under
the front seats for the purpose of
cooling the hybrid battery (trac-
tion battery). If the vent
becomes blocked, the hybrid
battery (traction battery) may
overheat, leading to a reduction
in hybrid battery (traction bat-
tery) output.
WARNING
●If a fire occurs in the hybrid
vehicle, leave the vehicle 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.462)
●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 vehicle. If the hybrid bat-
tery is used out side 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.
Hybrid battery (traction
battery) air intake vents

1443-2. Opening, closing and locking the doors
cle inspected and repaired by your
Toyota dealer.
■Kick sensor operating condi-
tions (vehicles with Hands Free
Power Sliding Doors)
The Hands Free Power Sliding Door
will open/close automatically when
the following cond itions are met:
●The kick sensor operation is
enabled ( P.112)
●The front door (t he same side of
the sliding door you open) is
closed.
●The electronic key is within the
operational range. ( P.165)
●A foot is put under the portion with
a label on the rocker moulding
and moved away from the rocker
moulding.
The power sliding door may also
be operated by putting a hand, an
elbow, a knee, etc. under the por-
tion with a label on the rocker
moulding and moving it away from
the rocker moulding. Make sure to
put it close enough to the center
part of the rocker moulding.
■Situations in which the Hands
Free Power Sliding Door may
not operate properly (vehicles
with Hands Free Power Sliding
Doors)
In the following situations, the
Hands Free Power Sliding Door
may not operate properly:
●When a foot remains under the
rocker moulding
●If the rocker moulding is strongly
hit with a foot or is touched for a
while
If the rocker moulding has been
touched for a while, wait for a short
time before attempting to operate
the Hands Free Power Sliding Door
again.
●When operated while a person is
too close to the rocker moulding
●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 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 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 r ocker moulding,
such as when the v ehicle is being
washed or in heavy rain
●When mud, snow, ice, etc. is
attached to the rocker moulding
●When the vehicle has been
parked for a while near objects
that may move and contact the
rocker moulding, such as plants
●When an accessory i s installed to
the rocker moulding
If an accessory has been installed,
turn the Hands Fre e Power Sliding
Door (kick sensor) operation setting
off.
■Preventing unintentional opera-
tion of the Hands Free Power
Sliding Door (vehicles with
Hands Free Power Sliding
Doors)
When an electronic key is in the
operation range, the Hands Free
Power Sliding Do or may operate
unintentionally, so be careful in the
following situations.
●When a large amount of water is
applied to the r ocker moulding,
such as when the v ehicle is being
washed or in heavy rain
●When dirt is wip ed off the rocker
moulding
●When a small animal or small