wheel TOYOTA SIENNA HYBRID 2021 Owners Manual (in English)

5498-2. Customization
8
Vehicle specifications
■PCS (Pre-Collision System) (P.267)
■LTA (Lane Tracing Assist) (P.275)
■RSA (Road Sign Assist)* ( P.285)
Shift position linked rear win-
dow wiper operation
(  P.258)
Only once
Off
––OContinuous
FunctionDefault settingCustomized
setting
PCS (Pre-Collision System)OnOff–O–
Adjust alert timingMiddleEarly–O–Late
FunctionDefault settingCustomized setting
Lane centering functionOnOff–O–
Steering assist functionOnOff–O–
Alert typeSteering wheel vibrationBuzzer–O–
Alert sensitivityHighStandard–O–
Vehicle sway warning func-
tionOnOff–O–
Vehicle sway warning sensi-
tivityStandardLow–O–High
FunctionDefault settingCustomized setting
RSA (Road Sign Assist)OnOff–O–
Excess speed notification
methodDisplay only
No notification
–O–Display and buzzer
FunctionDefault settingCustomized settingABC
ABC
ABC
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

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

576Alphabetical Index
Heated steering wheel ........... 361
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 ............ 451
Hill-start assist control .......... 335
Hood ........................................ 413
Hooks Cargo hooks ......................... 372
Coat hooks ........................... 388
Grocery bag hooks ............... 387
Retaining hooks (floor mat) .... 32
Horn ......................................... 186
Hybrid battery (tr action battery)
Location.................................. 83
Specification ......................... 521
Hybrid battery (traction battery) air intake vents ............... 85, 443
Hybrid battery (traction battery) air intake vents and filters ... 443
Hybrid battery air vent ............. 85
Hybrid system .......................... 79 ACC...................................... 234
Acoustic Vehicle Alerting System............................................. 81
Emergency shut off system .... 86
Energy monitor/consumption screen ................................ 122
EV drive mode...................... 236
High voltage components....... 83
How to start the hybrid system ........................................... 231
Hybrid battery (traction battery) air vents.............................. 443
Hybrid System In dicator . 97, 101
Hybrid system precautions ..... 83 Hybrid vehicle dri
ving tips .....341
If the hybrid sys tem will not start
...........................................501
If your vehicle has to be stopped in an emergency .................459
Ignition switch (power switch) ...........................................231
Overheating ..........................511
Power (ignition) switch .........231
Regenerative braking .............80
Starting the hybrid system ....231
Hybrid System Indicator ..................98, 102, 121
Hybrid transmissio n ...............238
S mode .................................241
I
I/M test .....................................410
Identification Engine ..................................520
Vehicle..................................519
Ignition switch (power switch) ...............................................231Auto power off fun ction.........235
Changing the power switch modes.................................234
If your vehicle has to be stopped in an emergency .................459
Starting the hybrid system ....231
Immobilizer system ..................88
Indicators ..................................95
Initialization Items to initialize ...................554
Oil maintenance ...................418
Tire pressure warning system...........................................430
Inside rear view m irror ...186, 188
Instrument panel light control .............................99, 103
Interior lights...........................363 Switch ...................................364
Wattage ................................526

Alphabetical Index581
Digital Rear-view Mirror........ 192
Inside rear view mirror.......... 187
Intuitive parking assist .......... 308
LTA (Lane Tracing Assist).... 275
Parking Support Brake function (rear-crossing vehicles) ...... 301
Parking Support Brake function (static objects) .................... 308
Rain-sensing windshield wipers ........................................... 256
RCTA ................................... 301
Toyota Safety Sense ............ 262
Service plug .............................. 83
Shift lever ................................ 238 If the shift lever cannot be shifted from P................................. 240
Shift lock system .................... 240
Shopping bag hooks .............. 387
Side airbags .............................. 41
Side auxiliary box ................... 372
Side marker lights Light switch .......................... 248
Replacing light bulbs ............ 451
Side mirrors ............................ 198 Adjustment ........................... 198
BSM (Blind Spot Monitor)..... 300
Folding ................................. 199
Heaters................................. 350
Linked mirror function when reversing ............................ 199
Side turn signal lights Replacing light bulbs ............ 451
Turn signal lever................... 242
Side windows ...... ................... 201
Sliding doors Canceling the power sliding door system ................................ 148
Hands Free Power Sliding doors
........................................... 141
Keyless entry........................ 138
Power sliding doors .............. 137
Sliding door child -protectors. 142 Wireless remote control........139
Smart key system ...................164 Antenna location...................164
Entry functions......132, 138, 151
Starting the hybrid system ....231
Warning message . ...............477
Snow tires ...............................343
Spare tire Storage location ...................492
Specifications .........................518
Speedometer .....................97, 101
Sport mode..............................333
Steering lock Column lock releas e .............232
Steering lock system warning message .............................232
Steering wheel Adjustment ...........................185
Heated steering wheel..........361
Meter control switches..........105
Stop lights Replacing light bulbs ............451
Storage feature .. .....................366
Storage precaution s ...............367
Stuck If the vehicle becomes stuck 514
Suggestion functi on ...............117
Sunglass holder.... ..................370
Sunshade ........................204, 385
Sunshades ..............................385
Sun visors ...............................374
Switches “ODO TRIP”switch ..........99, 103
“SOS” button ..........................75
Automatic High Beam switch 250
Brake hold switch .................246
BSM (Blind Spot M onitor) .....301
Digital Rear-view Mirror control switches..............................188
Door lock switch ...................135
Driving mode select switch ...333
Driving position memory

582Alphabetical Index
switches ............................. 178
Dynamic radar cruise control with full-speed range .......... 289
Emergency flashers switch .. 458
EV drive mode switch........... 236
Fog light switch .................... 254
Garage door opener switches ........................................... 392
Head-up display switch ........ 119
Heated steering wheel ......... 361
Ignition switch (power switch) ........................................... 231
Intuitive parking assist .......... 310
Light switch .......................... 248
LTA switch............................ 280
Meter control switches ......... 105
Moon roof switches .............. 204
Outside rear view mirror switches ............................. 198
Parking brake switch ............ 243
PCS (Pre-Collision System) . 269
PKSB (Parking Support Brake) ........................................... 320
Power back door switch ....... 154
Power door lock switch ........ 135
Power sliding door main switch ........................................... 149
Power sliding door switches . 140
Power switch ........................ 231
Power window switch ........... 201
RCD (Rear Camera Detection) switch ................................. 316
RCTA ................................... 301
Rear window and outside rear view mirror defoggers switch........................................... 350
Rear window wipe r and washer
switch ................................. 257
Seat heater switches .... 361, 362
Seat ventilator switches ....... 362
Vehicle-to-vehicle distance switch ................................. 288 VSC OFF switch ...................336
Window lock switch ..............203
Windshield defogger switch..349
Windshield wiper de-icer switch
...........................................353
Windshield wipers and washer switch .................................254
T
Tail lights Light switch...........................248
Replacing light bulbs ............451
Theft deterrent system Alarm ......................................89
Immobilizer system .................88
Tire inflation pressure Maintenance data .................525
Tire inflation pressure display function ...............................427
Warning light ........................472
Tire information ......................530 Glossary ...............................534
Size ......................................532
Tire identification number .....531
Tire section names ...............532
Tire pressure warning system Function................................427
Initializing..............................430
Installing tire p ressure warning
valves and transmitters ......429
Registering ID codes ............433
Warning light ........................472
Tires .........................................424 Chains ..................................345
Checking ..............................424
Glossary ...............................534
If you have a flat tire .....481, 491
Inflation pressure ..................438
Information ......... ..................530
Replacing .....................481, 491
Rotating tires ........................426
Size ......................................525

584Alphabetical Index
Pre-collision warning ............ 267
RCD OFF indicator............... 470
RCTA (Rear Cross Traffic Alert)........................................... 300
RCTA OFF indicator............. 470
Seat belt reminder ................ 473
Vehicle sway warning........... 279
Warning lights ABS ...................................... 468
Brake hold operated indicator........................................... 471
Brake Override System ........ 471
Brake system ....................... 466
Charging system .................. 466
Drive-Start Control ............... 471
Electric power steering ......... 468
Engine .................................. 467
High coolant temperature ..... 467
Hybrid system overheat ....... 467
Intuitive parking assist OFF indi- cator ................................... 469
Low engine oil pressure ....... 467
Low fuel level ....................... 472
LTA indicator ........................ 469
Malfunction indicator lamp ... 467
Parking brake indicator ........ 472
PCS warning light................. 469
PKSB (Parking Support Brake) ........................................... 471
PKSB OFF indicato r ............. 470
RCD OFF indicator............... 470
RCTA OFF indicator............. 470
Seat belt reminder light ........ 473
Slip indicator......................... 471
SRS ...................................... 468
Tire pressure ........................ 472
Warning messages ................ 477
Washer Checking .............................. 421
Low washer fluid warning mes-sage ........................... 421, 477
Preparing and c hecking before winter ..................................343
Switch ...........................254, 257
Washing and waxing ..............400
Weights Cargo capacity .............215, 218
Load limits ............................218
Wheels .....................................440 Replacing wheels .................440
Size ......................................525
Window glasses Power windows ....................201
Window lock switch ...............203
Windows Power windows ....................201
Rear window defogger .........350
Washer .........................254, 257
Windshield defogge r ..............349
Windshield wiper d e-icer .......353
Windshield wipers Intermittent windshield wipers...........................................254
Position.........................254, 257
Rain-sensing windshield wipers ...........................................254
Winter driving tips ..................343
Wireless charger.....................381
Wireless remote control.........130 Battery-saving function .........165
Locking/Unlocking ................130
Panic mode ..........................130
Replacing the battery ...........447
For vehicles with Entune Audio, Entune Audio Plus
or Entune Premium Audio,
refer to the “NAVIGA-
TION AND MULTIMEDIA
SYSTEM OWNER’S MAN-
UAL” for information