2022 TOYOTA SIENNA HYBRID ignition

3TABLE OF CONTENTS
1
2
3
4
5
6
7
8
9
4-1. Before drivingDriving the vehicle......... 210
Cargo and luggage ....... 217
Vehicle load limits ......... 220
Trailer towing (without tow- ing package)................ 221
Trailer towing (with towing package) ..................... 222
Dinghy towing ............... 232
4-2. Driving procedures Power (ignition) switch .. 233
EV drive mode .............. 238
Hybrid transmission ...... 240
Turn signal lever ........... 244
Parking brake ................ 245
Brake Hold .................... 248
4-3. Operating the lights and wipers
Headlight switch ............ 250
AHB (Automatic High Beam) .................................... 252
Fog light switch ............. 256
Windshield wipers and washer......................... 256
Rear window wiper and washer......................... 259
4-4. Refueling Opening the fuel tank cap.................................... 261
4-5. Using the driving support
systems
Toyota Safety Sense 2.0 264
PCS (Pre-Collision System) .................................... 269LTA (Lane Tracing Assist)
.................................... 277
RSA (Road Sign Assist) 287
Dynamic radar cruise control with full-speed range ... 290
BSM (Blind Spot Monitor) .................................... 301
Intuitive parking assist ... 311
RCD (Rear Camera Detec- tion) function ................ 319
PKSB (Parking Support Brake) .......................... 323
Parking Support Brake func- tion (static objects) ...... 328
Parking Support Brake func- tion (rear-crossing vehicles).................................... 331
Driving mode s elect switch
.................................... 333
Driving assist systems ... 334
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 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

209
4
4
Driving
Driving
4-1. Before drivingDriving the vehicle....... 210
Cargo and luggage ..... 217
Vehicle load limits ....... 220
Trailer towing (without tow- ing package).............. 221
Trailer towing (with towing package) ................... 222
Dinghy towing ............. 232
4-2. Driving procedures Power (ignition) switch 233
EV drive mode ............ 238
Hybrid transmission .... 240
Turn signal lever ......... 244
Parking brake .............. 245
Brake Hold .................. 248
4-3. Operating the lights and wipers
Headlight switch .......... 250
AHB (Automatic High Beam)........................ 252
Fog light switch ........... 256
Windshield wipers and washer....................... 256
Rear window wiper and washer....................... 259
4-4. Refueling Opening the fuel tank cap.................................. 2614-5. Using the dr
iving support
systems
Toyota Safety Sense 2.0 .................................. 264
PCS (Pre-Collision System) .................................. 269
LTA (Lane Tracing Assist) .................................. 277
RSA (Road Sign Assist) .................................. 287
Dynamic radar cruise con- trol with full-speed range
.................................. 290
BSM (Blind Spot Monitor) .................................. 301
Intuitive parking assist . 311
RCD (Rear Camera Detec- tion) function .............. 319
PKSB (Parking Support Brake) ........................ 323
Parking Support Brake func- tion (static objects) .... 328
Parking Support Brake func- tion (rear-crossing vehi-
cles) ........................... 331
Driving mode select switch .................................. 333
Driving assist systems. 334
4-6. Driving tips Hybrid vehicle driving tips.................................. 341
Winter driving tips........ 343

2334-2. Driving procedures
4
Driving
4-2.Driving procedures
1Pull the parking brake switch
to check that the parking
brake is set. ( P.245)
The parking brake indicator will
come on.
2Check that the shift lever is
set in P.
3 Firmly depress the brake
pedal.
and a message will be dis-
played on the multi-information dis-
play.
If it is not displayed, the hybrid sys-
tem cannot be started.
4 Press the power switch
shortly and firmly.
When operating the power switch,
one short, firm press is enough. It is
not necessary to press and hold the
switch.
If the “READY” indicator turns on,
the hybrid system will operate nor-
mally.
Continue depressing the brake
pedal until the “READY” indicator is
illuminated.
The hybrid system can be started from any power switch mode.
5
Check that the “READY” indi-
cator is illuminated.
The vehicle will not move when the
“READY” indicator is off.
■Power switch illumination
According to the situation, the
power switch illu mination operates
as follows.
●When driver’s door or front pas-
senger’s door is opened, the
power switch illu mination illumi-
nates.
●When the power switch is in OFF
and depressing t he brake pedal
with carrying the electronic key on
your person, the power switch illu-
mination blinks.
●When the power switch is in ACC
or ON, the power switch illumina-
tion illuminates.
●When the power switch mode is
changed from ACC or ON to OFF,
the power switch illumination illu-
minates for a certain amount of
time. Afterwards, the power switch
illumination turns off.
■If the hybrid system does not
start
●The immobilizer system may not
have been deactivated. ( P.88)
Contact your Toyota dealer.
●If a message related to start-up is
shown on the multi-information
display, read the message and fol-
low the instructions.
Power (ignition)
switch
Performing the following
operations when carrying
the electronic key on your
person starts the hybrid
system or changes power
switch modes.
Starting the hybrid sys-
tem

2354-2. Driving procedures
4
Driving
1Stop the vehicle completely.
2 If the parking brake is in man-
ual mode, set the parking
brake. ( P.245)
Check the parking brake indicator
is illuminated.
3 Shift the shift lever to P.
( P.241)
4 Press the power switch
shortly and firmly.
The hybrid system will stop, and the
meter display will be extinguished.
Release the shift lever when press-
ing the power switch.
5Release the brake pedal and
check that “ACCESSORY” or
“IGNITION ON” is not shown
on the multi-information dis-
play.
■Automatic hybrid system shut
off feature
●The vehicle is equipped with a
feature that automatically shuts off
the hybrid system when the shift
lever is in P with the hybrid system
operating for an extended period.
●The hybrid system will automati- cally shut off after approximately 1
hour if it has been left operating
while the shift lever is in P.
●The message asking if you wish to
enable/disable t
he automatic
hybrid syste m shut off feature will
sometimes be displayed on the
multi-information display. Leaving
the vehicle as is or selecting “Per-
form Auto Off” k eeps the auto-
matic hybrid system shut off
feature enabled, or selecting
“Keep Vehicle On” disables the
automatic hybrid system shut off
feature.
●The timer for the automatic hybrid
system shut off feature will reset if
the brake pedal is depressed or if
the shift lever is in a position other
than P.
●After the vehicle is parked, if the
door is locked with the door lock
switch ( P.135) from the inside
or the mechanical key ( P.502)
from the outside , the automatic
hybrid syste m shut off feature will
be disabled. The timer for the
automatic hybrid system shut off
feature will be re-enabled if the
driver’s door is opened.
NOTICE
■Symptoms indicating a mal-
function with the power
switch
If the power switch seems to be
operating somewhat differently
than usual, such as the switch
sticking slightly, there may be a
malfunction. Contact your Toyota
dealer immediately.
Stopping the hybrid sys-
tem

2374-2. Driving procedures
4
Driving
1OFF*
The emergency flashers can be
used.
2ACC
Some electrical components such
as the audio system can be used.
“ACCESSORY” will be displayed
on the multi-info rmation display.
3ON
All electrical com ponents can be
used.
“IGNITION ON” will be displayed on
the multi-inform ation display.
*: If the shift lever is in a position
other than P when turning off the
hybrid system, the power switch
will remain ON, will not turn to
OFF.
■Auto power off function
●If the vehicle is left in ACC or ON
(the hybrid system is not operat-
ing) for more than 20 minutes with
the shift lever in P, the power
switch will automatically turn to
OFF.
●If the 12-volt battery is low with the
shift lever is in P and the power
switch is in ACC or ON (the hybrid
system is not operating), a buzzer sounds and a message will be dis-
played on the multi-information
display. If this continues, the
power switch is automatically turn
to OFF.
However, this function cannot
entirely prevent the 12-volt battery
discharge. Do not leave the vehi-
cle with the power switch in ACC
or ON for long periods of time
when the hybrid system is not
operating.
If the hybrid system is stopped
with the shift lever in a position
other than P, the power switch
will not be turned to OFF but
instead be turned to ACC. Per-
form the following procedure to
turn the switch to OFF:
1
Check that the parking brake
is set.
2 Shift the shift lever to P.
3 Check that “Turn Power Off”
is displayed on the multi-
information display and press
NOTICE
■To prevent 12-volt battery dis-
charge
●Do not leave the power switch
in ACC or ON for long periods of
time without the hybrid system
on.
●If “ACCESSORY” or “IGNITION
ON” is displayed on the multi-
information display, the power
switch is not in OFF. Exit the
vehicle after turning the power
switch to OFF.
When stopping the hybrid
system with the shift lever
in a position other than P

4096-3. Do-it-yourself maintenance
6
Maintenance and care
Hybrid bat-
tery (traction
battery) air
intake vent
( P.440)• Vacuum cleaner,
etc,
• Phillips screw- driver
Light bulbs
( P.448)
• Bulb with same
number and watt-
age rating as origi-
nal
• Phillips-head screwdriver
• Flathead screw- driver
• Wrench
Radiator and
condenser
(  P.417)

Tire inflation
pressure
( P.435)• Tire pressure
gauge
• Compressed air source
Washer fluid
( P.418)
• Water or washer
fluid containing
antifreeze (for win-
ter use)
• Funnel (used only for adding water or
washer fluid)
WARNING
The engine compartment contains
many mechanisms and fluids that
may move suddenly, become hot,
or become electrically energized.
To avoid death or serious injury,
observe the following precautions.
ItemsParts and tools■When working on the engine
compartment
●Make sure that “IGNITION ON”
on the multi-information display
and the “READY” indicator are
both off.
●Keep hands, clothing and tools
away from the moving fan.
●Be careful not to touch the
engine, power control unit, radi-
ator, exhaust manifold, etc. right
after driving as they may be hot.
Oil and other fluids may also be
hot.
●Do not leave anything that may
burn easily, such as paper and
rags, in the engine compart-
ment.
●Do not smoke, cause sparks or
expose an open flame to fuel or
the battery. Fuel and battery
fumes are flammable.
●Be extremely cautious when
working on the battery. It con-
tains poisonous and corrosive
sulfuric acid.
■When working near the elec-
tric cooling fan or radiator
grille
Be sure the power switch is OFF.
With the power switch in ON, the
electric cooling fa n may automati-
cally start to run if the air condi-
tioning is on and/or the coolant
temperature is high. ( P.417)
■Safety glasses
Wear safety gla sses to prevent
flying or falling material, fluid
spray, etc., from getting in your
eyes.

5208-1. Specifications
Outside temperature
Oil viscosity (0W-16 is explained
here as an example):
• The 0W in 0W-16 indicates the characteristic of the oil
which allows cold startability.
Oils with a lower value before
the W allow for easier starting
of the engine in cold weather.
• The 16 in 0W-16 indicates the viscosity characteristic of the
oil when the oil is at high tem-
perature. An oil with a higher
viscosity (one with a higher
value) may be better suited if the vehicle is operated at high
speeds, or under extreme
load conditions.
How to read oil container label:
API registered mark is added to
some oil containers to help you
select the oil you should use.
*: The coolant capacity is the quantity of reference.
If replacement is ne cessary, contact your Toyota dealer.
A
Cooling system
Capacity*Gasoline engine11.4 qt. (10.8 L, 9.5 Imp. qt.)
Power control unit2.0 qt. (1.9 L, 1.7 Imp. qt.)
Coolant type
Use either of the following:
“Toyota Super Long Life Coolant”
 Similar high-quality ethylene gly-
col-based non-silicate, non-amine,
non-nitrite, and non-borate cool-
ant with long-life hybrid organic
acid technology
Do not use plain water alone.
Ignition system (spark plug)
MakeDENSO FC16HR-Q8
Gap0.031 in. (0.8 mm)

574Alphabetical Index
HeatersFront automatic air conditioning system ................................ 348
Heated steering wheel ......... 361
Outside rear view mirrors ..... 350
Rear automatic air conditioning system ................................ 358
Seat heaters ......................... 361
High mounted stoplight Replacing light bulbs ............ 448
Hill-start assist control .......... 335
Hood ........................................ 410
Hooks Cargo hooks ......................... 372
Coat hooks ........................... 387
Grocery bag hooks ............... 387
Retaining hooks (floor mat) .... 32
Horn ......................................... 187
Hybrid battery (tr action battery)
Location.................................. 83
Specification ......................... 519
Hybrid battery (traction battery) air intake vents ............... 85, 440
Hybrid battery (traction battery) air intake vents and filters ... 440
Hybrid battery air vent ............. 85
Hybrid system .......................... 79 ACC...................................... 236
Acoustic Vehicle Alerting System............................................. 81
Emergency shut off system .... 86
Energy monitor/consumption screen ................................ 122
EV drive mode...................... 238
High voltage components....... 83
How to start the hybrid system ........................................... 233
Hybrid battery (traction battery) air vents.............................. 440
Hybrid System In dicator . 97, 101
Hybrid system precautions ..... 83
Hybrid vehicle driving tips .... 341 If the hybrid sys
tem will not start
...........................................499
If your vehicle has to be stopped in an emergency .................457
Ignition switch (power switch) ...........................................233
Overheating ..........................509
Power (ignition) switch .........233
Regenerative braking .............80
Starting the hybrid system ....233
Hybrid System I ndicator .98, 102,
121
Hybrid transmissio n ...............240
S mode .................................243
I
I/M test .....................................406
Identification Engine ..................................518
Vehicle..................................517
Ignition switch (power switch) ...............................................233Auto power off fun ction.........237
Changing the power switch modes.................................236
If your vehicle has to be stopped in an emergency .................457
Starting the hybrid system ....233
Illuminated entry system .......365
Immobilizer system ..................88
Indicators ..................................95
Initialization Items to initialize ...................551
Maintenance .........................403
Oil maintenance ...................415
Tire pressure warning system...........................................427
Inside rear view m irror ...187, 189
Instrument panel light control99, 103
Interior lights...........................363 Switch ...................................364