towing 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

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

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

1733-3. Adjusting the seats
3
Before driving
■Getting in the vehicle
Pull the seatback angle adjust-
ment lever and fold down the
seatback. The cushion will tip
up. The seat can slide forward.
Move the seat to the frontmost
position.
■Getting out of the vehicle
Pull the strap and fold down the
seatback. The seat can slide for-
ward. The cushion will tip up.
Move the seat to the frontmost position.
Make sure that no passenger is
seated on the second seat before
pulling the strap.
■After passengers have
entered/exited the vehicle
Lift up the seatback. Either fold
cushion down or pull slide lever
to slide seat backward until it
locks.
1 Pull the lock release strap
and fold down the second
center seatback.
Make sure that the head restraint is
in the lowest position.
NOTICE
■To prevent an ottoman mal-
function (vehicles with Otto-
man seats)
●Do not place any objects in the
second passenger footwell that
could prevent the operation of
the ottoman.
●Do not place heavy luggage on
the ottoman.
●Do not place anything under the
ottoman when in use. There is a
possibility that something may
get caught and cause damage
when stowing the ottoman.
Moving a second seat for
third seat access
Removing the second
center seat (8-passenger
models)

1753-3. Adjusting the seats
3
Before driving
est position (P.182) and
stow the seat belt buckles.
2 Stow the center seat belt.
( P.38)
■Folding down the third seat-
backs
Pull the “TO RECLINE” strap
and fold down the seatback.
■Returning the third seat-
backs
Pull the “TO RECLINE” strap,
and raise the seatback and the
outside head restraints. Before stowing or returning third
seat, remove any items from the
floor area to prevent interfer-
ence with moving parts.
■Before stowing the third
seats
1 Lower the center head
restraint to the lowest posi-
tion ( P.182) and stow the
seat belt buckles.
2 Stow the center seat belt.
( P.38)
■Stowing the third seats
1 Pull the handle to move the
seat rearward. Then push the
seat down.
The outside head r estraints are
Stowing the third seats

1773-3. Adjusting the seats
3
Before driving
WARNING
●Do not allow anyone to sit on a
folded seatback or in the lug-
gage compartment while driv-
ing.
●Do not allow child ren to enter
the luggage compartment.
●Be careful not to get any part of
your body pinched by a seat.
■After returning the rear seat-
backs or installing seats
Observe the following precau-
tions. Failure to do so may result
in death or serious injury.
●Make sure the seatback is
securely locked by pushing it
forward and rearward on the
top.
●Check that the seat belts are
not twisted or caught in the
seatback. If the seat belt gets
caught between the seatback’s
securing hook and latch, the
seat belt may be damaged.
●Make sure the seat is locked in
place by trying to shake the
seatback and lift up the seat
cushion.
■After removi ng the second
center seat (8-passenger
models)
●Remove the second center seat
from the vehicle or store it
securely in the luggage com-
partment.
●Do not sit on or place anything
on a seat that has been
removed from the vehicle.
■Stowing the third seats
●Make sure that the seat path is
clear before moving the seat.
Otherwise, injury may result
from contact with, or by being
pinched by parts of the seat.
●Do not sit on the third seat when
it is in the stowed position with
the seatback upright.
NOTICE
■To prevent damage to the
seat
●Avoid putting heavy loads on a
folded seat that is being used as
a temporary table.
●Do not sit on or put heavy loads
on the second center seat that
has been removed from the
vehicle. The metal tips of the
seat leg may be damaged, pre-
venting reinstallation of the
seat.
●The second center seat must be
reinstalled in its original position
(8-passenger models). If it is
installed in the w rong position,
the seat locks or bezels will be
damaged.
●Make sure that the path the seat
will move through is clear before
stowing or returning the third
seat.
●8-passenger models: Be sure to
raise the stowed second center
seat above the outer trim, when
removing from the storage box
of the luggage room.

1783-3. Adjusting the seats
*: If equipped
When all of the following have
been performed, the driver’s
seat and steering wheel are
automatically adjusted to a posi-
tion that allows driver to enter
and exit the vehicle easily.
NOTICE
■Stowing the seat belt
The seat belts and the buckles
must be stowed before you fold
down the rear seatbacks.
Driving position mem-
ory*
This feature automatically
adjusts the positions of the
driver’s seat, steering
wheel, outside rear view
mirrors and head-up display
(if equipped) to make enter-
ing and exiting the vehicle
easier or to suit your prefer-
ences.
Two different driving posi-
tions can be recorded into
memory.
Each electronic key can be
registered to recall your pre-
ferred driving position.
Enabling easier driver
entry and exit (power easy
access system)