2021 TOYOTA SIENNA HYBRID change time

6
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.
The installation of a mobile two-
way radio system in your vehicle
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
Installation of a mobile
two-way radio system

801-4. Hybrid system
is not being charged.
*: When the hybrid battery (traction battery) requires charging or the
engine is warming up, etc., the
gasoline engine will not automati-
cally stop. ( P.80)
■During normal driving
The gasoline engine is predomi-
nantly used. The electric motor
(traction motor) charges the
hybrid battery (traction battery)
as necessary.
■When accelerating sharply
When the accelerator pedal is
depressed heavily, the power of
the hybrid battery (traction bat-
tery) is added to that of the gas-
oline engine via the electric
motor (traction motor).
■When braking (regenera-
tive braking)
The wheels operate the electric
motor (traction motor) as a
power generator, and the hybrid
battery (traction battery) is
charged.
■Regenerative braking
In the following si tuations, kinetic
energy is converted to electric
energy and deceleration force can
be obtained in conjunction with the
recharging of the hybrid battery
(traction battery).
●The accelerator pedal is released
while driving with the shift lever in
D or S.
●The brake pedal is depressed
while driving with the shift lever in
D or S.
■EV indicator
The EV indicator comes on when
the vehicle is driven using only the
electric motor (traction motor) or the
gasoline engine is stopped.
The on/off operation of the EV indi-
cator can be changed. ( P.112)
■Conditions in which the gaso-
line engine may not stop
The gasoline engine starts and
stops automatically. However, it
may not stop automatically in the
following conditions
*:
●During gasoline engine warm-up
●During hybrid battery (traction bat-
tery) charging
●When the temperature of the
hybrid battery (traction battery) is
high or low
●When the heater is switched on*: Depending on the circumstances, the gasoline engine may also not
stop automatically in other situa-
tions.
■Charging the hybrid battery
(traction battery)
As the gasoline engine charges the
hybrid battery (trac tion battery), the
battery does not need to be charged
from an outside source. However, if
the vehicle is left parked for a long
time the hybrid battery (traction bat-
tery) will slowly dis charge. For this
reason, be sure to drive the vehicle
at least once every few months for
at least 30 minutes or 10 miles (16
km). If the hybrid battery (traction
battery) becomes fully discharged
and you are unabl e to start the

901-5. Theft deterrent system
If a door is unlocked using the
mechanical key while the alarm is
set, a warning will sound intermit-
tently for approximately 10 seconds.
If the alarm is not canceled or
stopped during this time, the warn-
ing pattern change s and the warn-
ing sounds for a certain period of
time.
●A person inside the vehicle opens
a door or hood, or unlocks the
vehicle using an inside lock but-
ton.
●The 12-volt battery is recharged or
replaced when the vehicle is
locked. ( P.506)
■Alarm-operated door lock
In the following cases, depending
on the situation, th e door may auto-
matically lock to p revent improper
entry into the vehicle:
●When a person left in the vehicle
triggers the alarm by unlocking a
door or the back door.
●When a person lef t in the vehicle
unlocks a door or the back door
while the alarm is operating.
●When recharging or replacing the
12-volt battery.
NOTICE
■To ensure the system oper-
ates correctly
Do not modify or remove the sys-
tem. If modified or removed, the
proper operation of the system
cannot be guaranteed.

1002-1. Instrument cluster
■Pop-up display
Distance until the next engine oil
change will displayed when a warn-
ing message indicating that oil
maintenance should be performed
soon or is required is displayed.
The brightness of the instrument
panel lights can be adjusted.
1 Darker
2 Brighter
■Instrument panel brightness
adjustment
The instrument panel brightness
levels when the tail lights are on and
off can be adjusted individually.
However, when the surroundings
are bright (daytime, etc.), turning on
the tail lights will not chan ge the
instrument panel brightness.
The clocks can be adjusted on
the audio system screen.
Refer to “NAVIGATION AND
MULTIMEDIA SYSTEM
OWNER’S MANUAL”.
Changing the instrument
panel light brightness
Adjusting the clock

1042-1. Instrument cluster
■Pop-up display
Distance until the next engine oil
change will displayed when a warn-
ing message indicating that oil
maintenance should be performed
soon or is required is displayed.
The brightness of the instrument
panel lights can be adjusted.
1 Darker
2 Brighter
■Instrument panel brightness
adjustment
The instrument panel brightness
levels when the tail lights are on and
off can be adjusted individually.
However, when the surroundings
are bright (daytime, etc.), turning on
the tail lights will not chan ge the
instrument panel brightness.
The clocks can be adjusted on
the audio system screen.
Refer to “NAVIGATION AND
MULTIMEDIA SYSTEM
OWNER’S MANUAL”.
Changing the instrument
panel light brightness
Adjusting the clock

1062-1. Instrument cluster
■The multi-information display is
displayed when
The power swit ch is in ON.
■When changing driving mode
Background color of the multi-infor-
mation display is changed following
the selected driving mode.
(  P.333)
■Liquid crystal display
Small spots or light spots may
appear on the display. This phe-
nomenon is character istic of liquid
crystal displays, and there is no
problem continuing to use the dis-
play.
The multi-information display is
operated using the meter control
switches.
Scroll the screen
*/switch the
display
*/move the cursor
Press: Enter/Set
Press and hold: Reset/Dis-
play customizable items
Return to the previous screen
Call sending/receiving and
history display
Linked with the hands-free
system, sending or receiving call is displayed. For details
regarding the hands-free sys-
tem, refer to “NAVIGATION
AND MULTIMEDIA SYS-
TEM OWNER’S MANUAL”.
*: On screens where the screen can
be scrolled and the display can
be switched, a scroll bar or a
round icon that shows the num-
ber of registered screens is dis-
played.
Information related to each icon
can be displayed by selecting
the icon with the meter control
switches.
Some of the information may be
displayed automatically depending
on the situation.
Changing the display
A
B
C
D
:$51,1*
■Caution for use while driving
For safety, avoid operating the
meter control switches while driv-
ing as much as possible, and do
not look continuously at the multi-
information display while driving.
Stop the vehicle and operate the
meter control switches. Failure to
do so may cause a steering wheel
operation error, resulting in an
unexpected accident.
Menu icons
Driving information dis-
play ( P.106)
Driving support system
information display
(  P.110)
Audio system-linked dis-
play (if equipped)
(  P.111)

1122-1. Instrument cluster
(average speed, distance and
total time) can be displayed ver-
tically.
The displayed information
changes according to the “Drive
Info Type” setting (since the sys-
tem was started or between
resets). (P.112)
Use the displayed information as a
reference only.
Following items will be displayed.
“Trip”
• “Average Speed”: Displays the
average vehicl e speed since
hybrid system start
*
• “Distance”: Displ ays the distance
driven since hybrid system start
*
• “Total Time”: Displays the elapsed time since hybrid system
start
*
*
: These items are reset each time the hybrid system stops.
 “Total”
• “Average Speed”: Displays the
average vehicle speed since the
display was reset
*
• “Distance”: Displ ays the distance
driven since the display was
reset
*
• “Total Time”: Displays the elapsed time since the display
was reset
*
*
: To reset, display the desired item and press and hold “OK”.
■Energy monitor
 P.122
■Tire pressure
 P.427
■AWD system display (AWD
models)
Torque distribution display
Displays the drive status of each
wheel in 6 steps from 0 to 5.
G-force display*
Displays the size a nd direction of
the G-force applied to the vehicle
via changes to the position of the
ball on the display.
Maximum G-force course*
This item is linke d with the G-force
display and the co urse of the past
movement of the ba ll is displayed.
Press and hold “OK” to reset the
record.
Wheel spin display
When a tire is spi nning, its icon on
the display changes its color and
blinks.
*: This item is displayed only when driving mode is set to sport mode.
■Safety system status (7-
inch display)
Enable/Disable the following
systems:
 PCS (Pre-Colli sion system)
A
B
C
D

1132-1. Instrument cluster
2
Vehicle status information and indicators
(P.267)
 Intuitive parking assist (if
equipped) ( P.308)
 BSM (Blind Spot Monitor)
( P.299)
 RCTA (Rear Cross Traffic
Alert) ( P.299)
Vehicle settings and the content
displayed on the screen can be
changed by using the meter
control switches.
■Setting procedure
4.2-inch display
1 Press or of the meter
control switches and select
.
2 Press or of the meter
control switches and select
the desired item.
7-inch display
1 Press or of the meter
control switches and select
.
2 Press or of the meter
control switches and select
the desired item.
 If the function is turned on and
off or the volume, etc. is
changed on the setting
screen, the setting is changed
each time “OK” is pressed.
 For functions that allow oper- ation contents, display con-
tents, etc., of function to be
selected, the setting screen is
displayed by pressing and
holding “OK”. When the set-
ting screen is displayed,
select the setting or desired
value (time, etc.) with “OK”.
3 After changing the settings,
press of the meter control
switches to return to the pre-
vious screen.
■Setting items
 LTA (Lane Tracing Assist)
( P.275)
Select to set up t he following items.
• “Lane Center”
Select to enable /disable the lane
centering function.
• “Steering Assist”
Select to enable/d isable steering
wheel assistance.
 “Alert”
Select to set the alert type.
• “Sensitivity”
Select to set the lane departure
alert sensitivity.
• “Sway Warning”
Select to enable/disable the vehicle
sway warning.
• “Sway Sensitivity”
Select to set the vehicle sway warn-
ing sensitivity.
 PCS (Pre-Collision Sys-
tem) ( P.267)
Select to set up t he following items.
Settings display