2022 TOYOTA SIENNA HYBRID air conditioning

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

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...... 388
6-1. Maintenance and care Cleaning and protecting the vehicle exterior ............ 396
Cleaning and protecting the vehicle interior ............. 399
6-2. Maintenance Maintenance requirements.................................... 402
General maintenance.... 404
Emission inspection and maintenance (I/M) programs.................................... 406
6-3. Do-it-yourself maintenance Do-it-yourself service precau-tions............................. 408
Hood ............................. 410
Positioning a floor jack .. 412
Engine compartment ..... 413
12-volt battery ............... 419
Tires .............................. 421
Tire inflation pressure ... 435
Wheels ......... .................437
Air conditioning filter ...... 438
Cleaning the hybrid battery (traction battery) air intake
vents and filters ........... 440Electronic key battery ....
444
Checking and replacing fuses .................................... 446
Light bulbs ..................... 448
7-1. Essential information Emergency flashers....... 456
If your vehicle has to be stopped in an emergency.................................... 457
If the vehicle is submerged or water on the road is rising.................................... 458
7-2. Steps to take in an emer- gency
If your vehicle needs to be towed ........................... 460
If you think something is wrong........................... 463
If a warning light turns on or a warning buzzer sounds 464
If a warning message is dis- played .......................... 475
If you have a flat tire (vehicles without spare tire) ........ 480
If you have a flat tire (vehicles with spare tire) ............. 490
If the hybrid system will not start ............................. 499
If you lose your keys...... 500
If the fuel filler door cannot be opened ......... ...............501
If the electronic key does not oper ate prop erly

..........502
If the 12-volt battery is dis- charged ....................... 504
6Maintenance and care
7When trouble arises

22Pictorial index
Energy monitor.....................................................................P.122
When the warning messages are displayed ........................ P.475
Turn signal lever ................................................................P.244
Headlight switch ................................................................P.250
Headlights/parking lights/tail lights/
license plate lights/daytime running lights .................... ........P.250
Fog lights
*1............................................................... ............P.256
Windshield wiper and washer switch ..............................P.256
Rear window wiper and washer switch ...........................P.259
Usage.......................................................... .................P.256, 259
Adding washer fluid ..............................................................P.418
Warning messages ..............................................................P.475
Emergency flasher switch ....................................... ..........P.456
Hood lock release lever ........................................ .............P.410
Tilt and telescopic steering control switch/
tilt and telescopic steering lock release lever ................ .P.186
Adjustment ..................................................... ......................P.186
Driving position memory
*1....................................................P.179
Air conditioning system ............................. .......................P.348
Usage.......................................................... .........................P.348
Rear window defogger ........................................... ..............P.350
Multimedia system
*1, 2
*1
: If equipped
*2: Refer to “NAVIGATI ON AND MULTIMEDIA SYSTEM OWNER’S MAN-
UAL”.
E
F
G
H
I
J
K

26Pictorial index
■Interior
8-passenger models
SRS airbags .................................................... ......................P.41
Floor mats..................................................... ........................P.32
Front seats .................................................... ......................P.170
Second seats ......................................................................P.172
Third seats .................................................... ......................P.172
Head restraints ...................................................................P.183
Seat belts ..................................................... .........................P.35
Console box .................................................... ...................P.367
Cup holders ........................................................................P.368
Bottle holders .....................................................................P.369
Door pockets ................................................... ...................P.370
Rear automatic air conditioning system ......................... .P.358
Rear seat entertainment system
*1, 2
Rear side sunshades*1......................................................P.385
A
B
C
D
E
F
G
H
I
J
K
L

27Pictorial index
*1: If equipped
*2: Refer to “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MAN-
UAL”.
7-passenger models
SRS airbags .................................................... ......................P.41
Floor mats..................................................... ........................P.32
Front seats .................................................... ......................P.170
Second seats ......................................................................P.172
Third seats .................................................... ......................P.172
Head restraints ...................................................................P.183
Seat belts ..................................................... .........................P.35
Console box .................................................... ...................P.367
Cup holders ........................................................................P.368
Bottle holders .....................................................................P.369
Door pockets ................................................... ...................P.370
Rear automatic air conditioning system ......................... .P.358A
B
C
D
E
F
G
H
I
J

831-4. Hybrid system
1
For safety and security
The illustration is an example for explanation and may differ from the actual
item.
Warning label
Service plug
Rear electric motor (traction motor)
*
Hybrid battery (traction battery)
High voltage cables (orange)
Front electric motor (traction motor)
Power control unit
Air conditioning compressor
*: AWD models only
Hybrid system precautions
Take care when handling the hybrid system, as it is a high
voltage system (about 650V at maximum) as well as contains
parts that become extremely hot when the hybrid system is
operating. Obey the warning labels attached to the vehicle.
System components
A
B
C
D
E
F
G
H

2304-1. Before driving
Avoid jerky starts or sudden
acceleration.
 Avoid jerky steering and
sharp turns, and slow down
before making turn.
 Note that when making a turn,
the trailer wheels will be
closer than the vehicle wheels
to the inside of the turn. Com-
pensate by making a wider
than normal turning radius.
 Slow down before making a
turn, in cross winds, on wet or
slippery surfaces, etc.
Increasing vehicle speed can
destabilize the trailer.
Take care when passing other
vehicles. Passing requires
considerable distance. After
passing a vehicle, do not for-
get the length of your trailer,
and be sure you have plenty
of room before changing
lanes.
 To maintain engine braking
efficiency and charging sys-
tem performance, when using
engine braking, do not use
the transmission in D.
 Instability happens more fre-
quently when descending
steep or long downhill grades.
Before descending, slow
down and downshift. Do not
make sudden downshifts
while descending steep or
long downhill grades.
 Avoid holding the brake pedal down too long or applying the
brakes too frequently. This
could cause the brakes to
overheat and result in
reduced braking efficiency.
 Due to the added load of the
trailer, your vehicle’s hybrid
system may overheat on hot
days (at temperatures over
85°F [30°C]) when driving up
a long or steep grade. If the
engine coolant temperature
gauge indicates overheating,
immediately turn off the air
conditioning (if in use), pull
your vehicle off the road and
stop in a safe spot. ( P.509)
 Always place wheel blocks
under both the vehicle’s and
the trailer’s wheels when
parking. Apply the parking
brake firmly, and put the
transmission in P. Avoid park-
ing on a slope, but if unavoid-
able, do so only after
performing the following:
1 Apply the brakes and keep
them applied.
2 Have someone place wheel
blocks under both the vehi-
cle’s and trailer’s wheels.
3 When the wheel blocks are in
place, release the brakes
slowly until the blocks absorb
the load.
4 Apply the parking brake
firmly.

2674-5. Using the driving support systems
4
Driving
■If a warning message is displayed on the multi-information display
A system may be temporarily unava ilable or there may be a malfunction in
the system.
●In the following situations, perform the actions specified in t he table. When
the normal operating conditions are detected, the message will disappear
and the system will be come operational.
If the message does not disapp ear, contact your Toyota dealer.
●In the following situations, if the situation has changed (or the vehicle has
been driven for some time) and the normal operating conditions are
detected, the message will disappear and the system will become opera-
SituationActions
When the area around a camera is
covered with dirt, moisture (fogged
up, covered with condensation, ice,
etc.), or other foreign matterUsing the wiper and A/C function,
remove the dirt and other attached
matter. (P.349)
When the temperature around the
front camera is outside of the opera-
tional range, such as when the vehi-
cle is in the sun or in an extremely
cold environment
If the front camera is hot, such as
after the vehicle had been parked in
the sun, use the air conditioning sys-
tem to decrease the temperature
around the front camera.
If a sunshade was used when the
vehicle was parked, depending on its
type, the sunlight reflected from the
surface of the sunshade may cause
the temperature of the front camera
to become excessively high.
If the front camera is cold, such as
after the vehicle is parked in an
extremely cold environment, use the
air conditioning system to increase
the temperature around the front
camera.
The area in front o f the front camera
is obstructed, such as when the
hood is open or a sticker is attached
to the part of the win dshield in front
of the front camera.
Close the hood, rem ove the sticker,
etc. to clear the obstruction.
When “Pre-Collision System
Unavailable” is displayed.
Check whether there is attached
materials on the radar sensor and
radar sensor cover , and if there is,
remove it.