2022 TOYOTA SIENNA HYBRID ESP

3555-1. Using the air conditioning system and defogger
5
Interior features
The air conditioning system can
be switched between the indi-
vidual and synchronous modes.
The mode switches each time
the “SYNC” switch is operated
on the air conditioning operation
panel or the “SYNC” is selected
on the control screen.
Vehicles with “3-ZONE” mode
 In the individual mode, the
temperature for the driver,
front passenger, and rear
seats can be adjusted sepa-
rately.
 In the synchronous mode, the
driver’s side temperature con-
trol switch can be used to
adjust the temperature for the
driver, front passenger, and
rear seats.
• To adjust the temperature for the
front passenger seat separately
from other seats: operate the
front passenger’s side tempera-
ture control switch. (The “SYNC”
of “PASSSYNC” display disap-
pears)
• To adjust the temperature for the rear seats separately from the
front seats: when the synchro-
nous mode is on , operate the
“REAR” switch. Then, operate the
driver’s side or front passenger’s
side temperature control switch
upwards to increase the rear
seats temperature and down- wards to decrease the rear seats
temperature. (The “SYNC” of
“REAR SYNC” display on the
front air conditioning operation
panel and “SYNC” display on the
rear air conditioning operation
panel disappear)
Vehicles with “4-ZONE” mode
 In the individual mode, the
temperature for the driver,
front passenger, left-hand
side rear seats, and right-
hand side rear seats can be
adjusted separately by the
corresponding temperature
control switch on the front and
rear air conditioning operation
panels.
 In the synchronous mode, the
driver’s side temperature con-
trol switch can be used to
adjust the temperature for the
driver, front passenger, left-
hand side rear seats, and
right-hand side rear seats.
• To adjust the temperature for the
front passenger s eat separately
from other seats: operate the
front passenger’s side tempera-
ture control switch. (The “SYNC”
of “PASSSYNC” display disap-
pears)
• To adjust the temperature for the rear seats separately from the
front seats: when the synchro-
nous mode is on, operate the
“REAR” switch. Then, operate the
driver’s side temperature control
switch upwards to increase the
rear seats temperature and
downwards to decrease the rear
Switching between the
individual and synchro-
nous modes

3785-4. Using the other interior features
WARNING
●Do not attempt to modify, disas-
semble or repair a power outlet.
Also, do not replace the 120
VAC inverter with a commer-
cially available one. For infor-
mation on repairs, contact your
Toyota dealer.
●Be careful not to get any part of
your body caught in the power
outlet lid.
●Do not let children touch the
power outlets.
●Keep the power outlets free of
dust and foreign matter.
●If the plug of a device fits
loosely in a pow er outlet, even
though it is fully inserted,
replace the power outlet. For
information on replacement,
contact your Toyota dealer.
■Using the power outlets while
parked or stopped
Observe the following precau-
tions.
Failure to do so may lead to an
accident, possibly resulting in
death or serious injury.
●Make sure to engage the park-
ing brake and shift the shift
lever to P.
●Do not leave the vehicle unat-
tended while the READY indica-
tor is illuminated and a device is
connected to a power outlet.
●Make sure that the hood is
closed. As the engine will start
automatically depending on the
condition of the vehicle, make
sure that nothing is left near or
contacting the exhaust pipes.
Also, do not put your head or
hands anywhere inside the
engine compartment, as the
cooling fan ma y operate sud-
denly. Keep hands and clothing
(especially a tie, scarf, etc.)
away from the fan as they may
get caught in a fan.
●Do not use the power outlets in
an area with poor ventilation or
an enclosed area, such as a
garage without a ventilation or
exhaust system, o r in an area
where the vehicle may become
surrounded by snow, as the
exhaust gasses may accumu-
late, causing a lack of oxygen.
●Do not use the power outlets if
the vehicle has a vehicle cover
installed.
●Do not sleep in the vehicle while
using devices such as an elec-
tric heater.
■Devices to be connected
Make sure to read a ny instruction
manual which came with a device
and observe any w arnings on the
device. Do not connect a device
to a power outlet if the device is
malfunctioning or its plug is dam-
aged.
Do not use power outlets for med-
ical devices, as the output of the
power outlet may be cut, depend-
ing on the condition of the vehicle.

4006-1. Maintenance and care
WARNING
■Water in the vehicle
●Do not splash or spill liquid in
the vehicle, such as on the floor,
on the front seats, in the hybrid
battery (traction battery) air
intake vent or in the luggage
compartment. ( P.85)
Doing so may cause the hybrid
battery, electrical components,
etc. to malfunction or catch fire.
●Do not get any of the SRS com-
ponents or wiring in the vehicle
interior wet.
(  P.42)
An electrical malfunction may
cause the airbags to deploy or
not function properly, resulting
in death or serious injury.
●Vehicles with wireless charger:
Do not let the wireless charger
(  P.381) get wet. Failure to do
so may cause the charger to
become hot and cause burns or
could cause electric shock
resulting in death or serious
injury.
■Cleaning the interior (espe-
cially instrument panel)
Do not use a polis h wax or polish
cleaner. The instrument panel
may reflect off the windshield,
obstructing the dr iver’s view and
leading to an accident, resulting in
death or serious injury.
NOTICE
■Cleaning detergents
●Do not use the following types
of detergent, as they may dis-
color the vehicle interior or
cause streaks or damage to
painted surfaces:
• Non-seat portions: Organic sub- stances such as benzene or
gasoline, alkaline or acidic solu-
tions, dye, and bleach
• Seats: Alkaline or acidic solu- tions, such as thinner, benzene,
and alcohol
●Do not use a polish wax or pol-
ish cleaner. The instrument
panel’s or other interior part’s
painted surface may be dam-
aged.
■Water on the floor
Do not wash the v ehicle floor with
water.
Vehicle systems such as the
audio system may be damaged if
water comes into contact with
electrical components such as the
audio system above or under the
floor of the vehicle. Water may
also cause the body to rust.
■When cleaning the inside of
the windshield
Do not allow glass cleaner to con-
tact the lens. Also, do not touch
the lens. ( P.264)
■Cleaning the inside of the rear
window
●Do not use a gla ss cleaner to
clean the rear window, as this
may cause damage to the rear
window defogger heater wires.
Use a cloth dampened with
lukewarm water to gently wipe
the window clean. Wipe the win-
dow in strokes running parallel
to the heater wires.

4016-1. Maintenance and care
6
Maintenance and care
Remove dirt using a water-
dampened soft cloth or syn-
thetic chamois.
 Wipe the surface with a dry
soft cloth to remove any
remaining moisture.
■Cleaning the areas with satin-
finish metal accents
The metal areas use a layer of real
metal for the surface. It is necessary
to clean them regularly. If dirty areas
are left uncleaned for long periods
of time, they may be difficult to
clean.
 Remove dirt and dust using a
vacuum cleaner.
 Wipe off any excess dirt and
dust with a soft cloth damp-
ened with diluted detergent.
Use a diluted water solution of
approximately 5% neutral wool
detergent.
Wring out any excess water
from the cloth and thoroughly
wipe off all remaining traces
of detergent.
 Wipe the surface with a dry,
soft cloth to remove any
remaining moisture. Allow the leather to dry in a shaded and
ventilated area.
■Caring for leather areas
Toyota recommends cleaning the
interior of the vehicle at least twice a
year to maintain t he quality of the
vehicle’s interior.
 Remove dirt and dust using a
vacuum cleaner.
 Wipe it off with a soft cloth
dampened with neutral deter-
gent diluted to approximately
1%.
 Wring out any excess water
from the cloth and thoroughly
wipe off remaining traces of
detergent and water.
NOTICE
●Be careful not to scratch or
damage the heater wires.
Cleaning the areas with
satin-finish metal accents
Cleaning the leather areas
NOTICE
■Preventing damage to leather
surfaces
Observe the following precautions
to avoid damage to and deteriora-
tion of leather surfaces:
●Remove any dust or dirt from
leather surfaces immediately.
●Do not expose the vehicle to
direct sunlight for extended peri-
ods of time. Park the vehicle in
the shade, especially during
summer.
●Do not place items made of
vinyl, plastic, or containing wax
on the upholstery, as they may
stick to the leather surface if the
vehicle interior heats up signifi-
cantly.
Cleaning the synthetic
leather areas

4026-2. Maintenance
6-2.Maintenance
■Repair and replacement
It is recommended that genuine
Toyota parts be used for repairs to
ensure performanc e of each sys-
tem. If non-Toyota p arts are used in
replacement or if a repair shop other
than a Toyota dealer performs
repairs, confirm the warranty cover-
age.
■Allow inspection and repairs to
be performed by a Toyota
dealer
●Toyota technicians are well-
trained specialists and are kept up
to date with the latest service
information. They are well
informed about the operations of
all systems on your vehicle.
●Keep a copy of the repair order. It
proves that the maintenance that
has been performed is under war-
ranty coverage. If any problem
should arise while your vehicle is
under warranty, your Toyota
dealer will promptly take care of it.
General maintenance should be
performed on a daily basis. This
can be done by yourself or by a
Toyota dealer.
Scheduled maintenance should
be performed at specified inter-
vals according to the mainte-
nance schedule.
For details about maintenance
items and schedules, refer to the
“Scheduled Maintenance Guide” or
“Owner’s Manual Supplement”.
Maintenance require-
ments
To ensure safe and econom-
ical driving, day-to-day care
and regular maintenance
are essential. It is the
owner’s responsibility to
perform regular checks.
Toyota recommends the fol-
lowing maintenance:
WARNING
■If your vehicle is not properly
maintained
Improper maintenance could
result in serious damage to the
vehicle and possible death or seri-
ous injury.
■Handling of the 12-volt bat-
tery
●Engine exhaust, some of its
constituents, and a wide variety
of automobile components con-
tain or emit chemicals known to
the State of California to cause
cancer and birth defects and
other reproductive harm. Work
in a well ventilated area.
●Oils, fuels and fluids contained
in vehicles as well as waste pro-
duced by component wear con-
tain or emit chemicals known to
the State of California to cause
cancer and birth defects or
other reproductive harm. Avoid
exposure and wash any
affected area immediately.
●12-volt battery posts, terminals
and related accessories con-
tain lead and lead compounds
which are known to cause brain
damage. Wash your hands after
handling. ( P.419)
General maintenance
Scheduled maintenance

4747-2. Steps to take in an emergency
WARNING
As an added safety feature, your
vehicle has been equipped with a
tire pressure m onitoring system
(TPMS-tire pressure warning sys-
tem) that illuminates a low tire
pressure telltale (tire pressure
warning light) when one or more
of your tires is significantly under-
inflated. Accordingly, when the
low tire pressure telltale (tire pres-
sure warning light) illuminates,
you should stop and check your
tires as soon as possible, and
inflate them to the proper pres-
sure. Driving on a significantly
under-inflated tire causes the tire
to overheat and can lead to tire
failure. Under-inflation also
reduces fuel efficiency and tire
tread life, and may affect the vehi-
cle’s handling and stopping abil-
ity.
Please note that the TPMS (tire
pressure warning system) is not a
substitute for pro per tire mainte-
nance, and it is the driver’s
responsibility to maintain correct
tire pressure, even if under-infla-
tion has not reach ed the level to
trigger illumination of the TPMS
low tire pressure telltale (tire pres-
sure warning light).
Your vehicle has also been
equipped with a TPMS (tire pres-
sure warning system) malfunc-
tion indicator to indicate when the
system is not operating properly.
The TPMS (tire pressure warning
system) malfunction indicator is
combined with the low tire pres-
sure telltale (tire pressure warning
light). When the system detects a
malfunction, the te lltale will flash
for approximately one minute and
then remain continuously illumi-
nated. This sequence will con-
tinue upon subsequent vehicle
start-ups as long as the malfunc-
tion exists. When the malfunction
indicator is illuminated, the sys-
tem may not be ab le to detect or
signal low tire pressure as
intended.
TPMS (tire pressure warning sys-
tem) malfunctions may occur for a
variety of reasons, including the
installation of replacement or
alternate tires or wheels on the
vehicle that prevent the TPMS
(tire pressure warning system)
from functioning properly. Always
check the TPMS (tire pressure
warning system) malfunction tell-
tale after replacing one or more
tires or wheels on your vehicle to
ensure that the replacement or
alternate tires and wheels allow
the TPMS (tire pressure warning
system) to continue to function
properly.
NOTICE
■To ensure the tire pressure
warning system operates
properly
Do not install tires with different
specifications or manufacturers
as the tire pressure warning sys-
tem may not operate properly.

4797-2. Steps to take in an emergency
7
When trouble arises
the message is resolved. ( P.267,
464)
●PCS (Pre-Collis ion System)
●LTA (Lane Tracing Assist)
●Dynamic radar cruise control with
full-speed range
■If “Maintenance Required
Soon” is shown
Indicates that all maintenance
according to the driven distance on
the maintenance schedule
* should
be performed soon.
Comes on approximately 4500
miles (7200 km) after the message
has been reset.
If necessary, perform maintenance.
Please reset the message after the
maintenance is performed.
(  P.403)
*: Refer to the separate “Scheduled
Maintenance Guide” or “Owner’
Manual Supplement” for the main-
tenance interval applicable to your
vehicle.
■If “Maintenance Required Visit
Your Dealer” is shown
Indicates that all maintenance is
required to correspond to the driven
distance on the maintenance sched-
ule
*.
Comes on approximately 5000
miles (8000 km) after the message
has been reset. (The indicator will
not work properly unless the mes-
sage has been reset.)
Perform the necessary mainte-
nance. Please reset the message
after the maintenance is performed.
(  P.403)
*: Refer to the separate “Scheduled
Maintenance Guide” or “Owner’
Manual Supplement” for the main-
tenance interval applicable to your
vehicle.
■If “Oil Maintenance Required
Soon” is displayed
Indicates that the engine oil should
be scheduled to be changed.
Check the engine oil and change it if
necessary.
After changing the engine oil, make
sure to reset t he message.
(  P.415)
■If “Oil Maintenance Required
Visit Your Dealer” is displayed
Indicates that the engine oil should
be changed.
Check and change the engine oil
and oil filter by yo ur Toyota dealer.
After changing the engine oil, make
sure to reset t he message.
(
P.415)
■Warning buzzer
 P.471
NOTICE
■“High Power Consumption
Power to Climate Temporar-
ily Limited” is frequently
shown
There is a possible malfunction
relating to the charging system or
the 12-volt battery may be deteri-
orating. Have the vehicle
inspected by your Toyota dealer.
■If “Low Auxiliary Battery See
Owner’s Manual” is displayed
frequently
The 12-volt battery may have
deteriorated.
As the battery may discharge in
this state when left unattended,
have the battery inspected by
your Toyota dealer.

4887-2. Steps to take in an emergency
WARNING
●Do not touch the wheels or the
area around the brakes immedi-
ately after the vehicle has been
driven.
After the vehicle has been
driven, the wheels and the area
around the brakes may be
extremely hot. Touching these
areas with hands, feet or other
body parts may result in burns.
●Connect the valve and hose
securely with the tire installed
on the vehicle. If the hose is not
properly connected to the valve,
air leakage may occur as seal-
ant may be sprayed out.
●If the hose comes off the valve
while inflating the tire, there is a
risk that the hose will move
abruptly due to air pressure.
●After inflation of the tire has
completed, the sealant may
splatter when the hose is dis-
connected or some air is let out
of the tire.
●Follow the operation procedure
to repair the tire. If the proce-
dures not followed, the sealant
may spray out.
●Keep back from the tire while it
is being repaired, as there is a
chance of it bursting while the
repair operation is being per-
formed. If you notice any cracks
or deformation of the tire, turn
off the compressor switch and
stop the repair operation imme-
diately.
●The repair kit may overheat if
operated for a long period of
time. Do not operate the repair
kit continuously for more than
40 minutes.
●Parts of the re pair kit become
hot during operation. Be careful
handling the repair kit during
and after operation. Do not
touch the metal part around the
connecting area between the
bottle and the compressor. It will
be extremely hot.
●Do not attach the vehicle speed
warning sticker to an area other
than the one indicated. If the
sticker is attached to an area
where an SRS airbag is located,
such as the pad of the steering
wheel, it may prevent the SRS
airbag from operating properly.
■Driving to spread the liquid
sealant evenly
●Drive the vehicle carefully at a
low speed. Be especially careful
when turning and cornering.
●If the vehicle does not drive
straight or you feel a pull
through the steering wheel, stop
the vehicle and check the fol-
lowing.
• Tire condition. The tire may have separated from the wheel.
• Tire inflation pressure. If the tire inflation pressure is 19 psi (130
kPa, 1.3 kgf/cm
2 or bar) or less,
the tire may be severely dam-
aged.