2021 TOYOTA SIENNA HYBRID Power

5468-2. Customization
*: If equipped
■Power back door*1 ( P.153)
*1: If equipped
The delay before a power
sliding door operation starts
after pressing the switch on
the outside door handle
0.15 seconds
0.3 seconds
––O0.8 seconds
Off
Left Hands Free Power Slid-
ing Doors (kick sensor)
*OnOff–OO
Right Hands Free Power
Sliding Doors (kick sensor)
*OnOff–OO
Kick sensor detection sensi-
tivity
*21––O3
FunctionDefault settingCustomized
setting
Power back door operationsOnOff–O–
Back door opener switch
operationsPress and holdOne short press––O
switch of the wireless
remote control operationPress and hold
Press twice
––OOne short press
Off
Operation buzzer volume31–O–2
Opening angle5
1 to 4
–O–
User setting*2
Power back door open oper-
ation when the back door
opener switch is pressed
OnOff––O
Hands Free Power Back
Door (kick sensor)
*1, 3OnOff–OO
FunctionDefault settingCustomized settingABC
ABC

5478-2. Customization
8
Vehicle specifications
*2: The open position is set by the power back door switch on the back door.
(  P.163)
*3: When the towing hitch is installed, kick sensor does not work.
■Driving position memory* ( P.178)
*: If equipped
■Outside rear view mirrors ( P.198)
*: If equipped
■Power windows and moon roof* ( P.201, 204)
FunctionDefault settingCustomized
setting
Selection the door linking
driving position memory with
door unlock operation
Driver’s doorAll doors––O
Driver’s seat slide move-
ment when exiting the vehi-
cle
*Full
Off
O–OPartial
Steering wheel movement*Tilt only
Off
O–O
Telescopic only
Tilt and tele-scopic
FunctionDefault settingCustomized setting
Automatic mirror folding and
extending operation
*
Linked to the
locking/unlock- ing of the doorsOff
––OLinked to oper- ation of the
power switch
FunctionDefault settingCustomized setting
Mechanical key linked opera-
tionOffOn––O
ABC
ABC
ABC

5528-2. Customization
■Illumination (P.363)
*: If equipped
■Vehicle customization
●When the speed linked door locking function and shift position linked door
locking function are both on, th e door lock operates as follows .
• If the vehicle is started with a ll the doors locked, the speed linked door
locking function would not operate.
• If the vehicle is started with any door unlocked, the speed li nked door lock-
ing function will operate.
• When shifting the shift lever to any position other than P, all the doors will
be locked.
FunctionDefault settingCustomized
setting
Time elapsed before the inte-
rior lights turn off15 seconds
Off
O–O7.5 seconds
30 seconds
Operation after the power
switch is turned offOnOff––O
Operation when the doors
are unlockedOnOff––O
Operation when you
approach the vehicle with the
electronic key on your per-
son
OnOff––O
Footwell lighting*OnOff––O
Ambient lights*OnOff––O
Time elapsed before the
outer foot lights turn off
*15 seconds
Off
O–O7.5 seconds
30 seconds
Operation of the outer foot
lights when you approach the
vehicle with the electronic
key on your person
*
OnOff––O
Operation of the outer foot
lights when the doors are
unlocked
*OnOff––O
ABC

568What to do if... (Troubleshooting)
1-1.What to do if... (Troubleshooting)What to do if... (Troubleshooting)
If you lose your keys or
mechanical keys, new genu-
ine keys or mechanical keys
can be made by your Toyota
dealer. ( P.502)
 If you lose your electronic
keys, the risk of vehicle theft
increases significantly. Con-
tact your Toyota dealer imme-
diately. ( P.502)
 Is the key battery weak or
depleted? ( P.447)
 Vehicles with entry function:
Is the power switch in ON?
When locking the doors, turn
the power switch off.
( P.234)
 Vehicles with entry function:
Is the electronic key left inside
the vehicle? When locking the doors,
make sure that you have the
electronic key on your person.
 The function may not operate
properly due to the condition
of the radio wave. ( P.166)
 Is the child-protector lock set?
The sliding door cannot be
opened from inside the vehi-
cle when the lock is set. Open
the sliding door from outside
and then unlock the child-pro-
tector lock. ( P.142)
 Did you press the power
switch while firmly depress-
ing the brake pedal?
( P.231)
 Is the shift lever in P?
( P.231)
 Is the electronic key any-
where detectable inside the
vehicle? ( P.165)
 Is the steering wheel
unlocked? ( P.232)
 Is the electronic key battery
If you have a problem,
check the following before
contacting your Toyota
dealer.
The doors cannot be
locked, unlocked, opened
or closed
You lose your keys
The doors cannot be
locked or unlocked
The sliding door cannot
be opened
If you think something is
wrong
The hybrid system does
not start

569What to do if... (Troubleshooting)
weak or depleted?
In this case, the hybrid sys-
tem can be started in a tem-
porary way. (P.505)
 Is the 12-volt battery dis-
charged? ( P.506)
 Is the power switch in ON?
If you cannot release the shift
lever by depressing the brake
pedal with the power switch in
ON ( P.240)
 It is locked automatically to
prevent theft of the vehicle.
( P.232)
 Is the window lock switch
pressed?
The power window except for
the one at the driver’s seat
cannot be operated if the win-
dow lock switch is pressed.
( P.203)
 The auto power off function
will be operated if the vehicle is left in ACC or ON (the
hybrid system is not operat-
ing) for a period of time.
(
P.235)
 The seat belt reminder light is
flashing
Are the driver and the passengers
wearing the seat belts? (
P.473)
The parking brake indicator is
on
Is the parking br ake released?
( 
P.243)
Depending on the situation,
other types of warning buzzer
may also sound. ( P.466, 477)
 Did anyone inside the vehicle
open a door during setting the
alarm?
The sensor detects it and the
alarm sounds. ( P.89)
To stop the alarm, turn the power
switch to ON or start the hybrid sys-
tem.
 Is the message displayed on
the multi-information display?
Check the message on the
The shift lever cannot be
shifted from P even if you
depress the brake pedal
The steering wheel can-
not be turned after the
hybrid system is stopped
The windows do not open
or close by operating the
power window switches
The power switch is
turned off automatically
A warning buzzer sounds
during driving
An alarm is activated and
the horn sounds (if
equipped)
A warning buzzer sounds
when leaving the vehicle

571Alphabetical Index
Alphabetical Index
A
A/C ................................... 348, 358Air conditioning filter ............. 441
Eco air conditioning mode .... 352
Front automatic air conditioning system ................................ 348
Front seat concentrated airflow mode (S-FLOW) ................. 354
Rear automatic air conditioning system ................................ 358
ABS (Anti-lock Brake System) ............................................... 335Function ............................... 335
Warning light ........................ 468
ACA (Active Cornering Assist) ............................................... 335
Acoustic Vehicle Alerting Sys- tem ........................................... 81
Active Cornering Assist (ACA) ............................................... 335
Airbags ...................................... 41 Airbag operating conditions.... 44
Airbag precautions for your child............................................. 46
Airbag warning light.............. 468
Correct driving posture ........... 33
Curtain shield airbag operating conditions ............................. 44
Curtain shield airbag precautions ............................................. 46
Front passenger occupant clas- sification system ................... 51
General airbag precautions .... 46
Locations of airbags ............... 41
Modification and disposal of air- bags ..................................... 49
Seat cushion airbag ............... 41
Side airbag operating conditions ............................................. 44
Side airbag precautions ......... 46
Side and curtain shield airbags operating conditions .............44
Side and curtain shield airbags precautions ...........................46
SRS airbags ...........................41
SRS warning light .................468
Air conditioning filter .............441
Air conditioning system.348, 358 Air conditioning filter .............441
Changing the rear seat settings...........................................356
Eco air conditioning mode ....352
Front automatic air conditioning system ................................348
Front seat concent rated airflow
mode (S-FLOW) .................354
Rear automatic air conditioning system ................................358
Alarm .........................................89 Alarm ......................................89
Warning buzzer .. ..................466
Anchor brackets ... ..............60, 71
Antenna (Smart key system) .164
Anti-lock brake system (ABS)335 Function................................335
Warning light ........................468
Approach warning ..................295
Armrest ......... ......................... ..386
Assist grips .............................386
Automatic air conditioning sys- tem .................................348, 358Air conditioning filter .............441
Eco air conditioning mode ....352
Automatic High Beam ............250
Automatic light control system ...............................................249
Average fuel consumption ....125
Average fuel economy ...........106
Average vehicle speed ...111, 125
B
Back door ................................150 Hands Free Power Back door

572Alphabetical Index
........................................... 155
Power back door .................. 153
Wireless remote control ....... 153
Back-up lights Replacing light bulbs ............ 451
Wattage ................................ 526
Battery (12-volt battery) ......... 422 If the 12-volt battery is dis-charged .............................. 506
Preparing and c hecking before
winter.................................. 343
Replacing ............................. 508
Warning light ........................ 466
Battery (traction battery) ......... 83
Blind Spot Monitor (BSM) ...... 299 Blind Spot Monitor function .. 302
Rear Cross Traffic Alert function........................................... 305
Bottle holders ......................... 369
Brake Brake Hold ........................... 246
Fluid ............................. 420, 524
Parking brake ....................... 243
Regenerative braking ............. 80
Warning light ........................ 466
Brake assist ............................ 335
Brake Hold .............................. 246
Break-in tips ........ ................... 209
Brightness control Instrument panel light control .......................... 99, 103
BSM (Blind Spot Monitor) ...... 299 Blind Spot Monitor function .. 302
Rear Cross Traffic Alert function........................................... 305
C
Care Aluminum wheels ................. 400
Exterior ................................. 400
Interior .................................. 403
Seat belts ............................. 403 Cargo capacity ................215, 218
Cargo hooks............................372
Chains......................................345
Child-protectors......................142
Child restraint system ..............58
Fixed with a LATCH system ...68
Fixed with a seat belt..............63
Front passenger occupant clas-sification system ...................51
Points to remember ................58
Riding with children ................57
Types of child restraint system installation method ...............60
Using an anchor bracket ........71
Child safety ...............................57 12-volt battery precautions .................422, 509
Airbag precautions .................46
Back door precautions..........150
Child restraint system .............60
Heated steering wheel and seat heater precautio ns..............361
How your child should wear the seat belt ................................36
Moon roof precautions..........205
Power window lock switch ....203
Power window precautions...202
Removed key battery precau- tions ....................................448
Seat belt extender precautions .............................................36
Seat belt precautions..............35
Seat heater precautions .......361
Cleaning ..........................400, 403 Aluminum wheels .................400
Exterior .................................400
Hybrid battery (tr action battery)
air intake vents and filters...443
Interior ..................................403
Radar sensor ........................263
Seat belts .............................403
Clock ................................100, 104

Alphabetical Index573
Coat hooks .............................. 388
Condenser .............................. 420
Console box ............................ 367
Consumption screen.............. 122
Conversation mirror ............... 370
CoolantChecking .............................. 419
Preparing and c hecking before
winter.................................. 343
Warning light ........................ 467
Cooling system ...................... 419 Hybrid system overheating... 511
Cruise control Dynamic radar cruise control with full-speed range .......... 288
Cup holders ............................ 368
Current fuel consumption ..... 125
Current fuel economy ............ 106
Curtain shield airbags ............. 41
Customizable features ........... 540
D
Daytime running light system248 Replacing light bulbs ............ 451
Defogger Outside rear view mirrors ..... 350
Rear window ........................ 350
Windshield............................ 349
Digital Rear-view Mirror ......... 188 Adjustment ........................... 190
Cleaning ............................... 193
Dinghy towing ........................ 230
Display BSM (Blind Spot Monitor)..... 300
Consumption screen ............ 122
Drive information .................. 111
Driving information ............... 106
Dynamic radar cruise control with full-speed range .......... 288
Energy monitor ..................... 122
Head-up display ................... 118
Intuitive parking assist .......... 308 LTA (Lane Traci
ng Assist) ....281
Multi-information display.......104
RCD (Rear Camera Detection) ...........................................315
RCTA ....................................300
Warning messages ...............477
Do-it-yourself maintenance..................407, 411
Door lock Back door .............................150
Front doors ...........................132
Sliding doors.........................137
Smart key system .................164
Wireless remote control........130
Doors Automatic door locking and unlocking system ................136
Back door .............................150
Door glasses ........................201
Door lock ..............................132
Front doors ...........................132
Open door warning buzzer ...136
Outside rear view mirrors .....198
Sliding door child-protectors .142
Sliding doors.........................137
Drive information ....................111
Driver’s seat belt reminder light ...............................................473
Drive-start control ..................209
Driving Break-in tips .........................209
Correct posture .......................33
Driving mode select switch ...333
Hybrid vehicle dri ving tips .....341
Procedures ...........................208
Winter drive tips....................343
Driving informatio n display ...106
Driving mode select switch ...333
Driving position memory .......178 Memory recall function .........180
Power easy access system ..178
Driving support system informa-