2021 TOYOTA SIENNA HYBRID remote start

5047-2. Steps to take in an emergency
■When the electronic key does
not work properly
●Make sure that the smart key sys-
tem has not been deactivated in
the customization setting. If it is
off, turn the function on.
(Customizable features: P.544)
●Check if battery-saving mode is
set. If it is set, cancel the function.
( P.166)
Use the mechanical key
( P.131) in order to perform the following operations.
1
Locks all the doors
2 Unlocks the door
■Key linked functions
The opening and closing of the
power windows and moon roof can
be linked to key operation by a cus-
tomized setting at your Toyota
dealer.
1 Closes the windows and the
moon roof
* (turn and hold)
2 Opens the windows and the
moon roof
* (turn and hold)
*: If equipped
If the electronic key
does not op erate prop-
erly
If communication between
the electronic key and vehi-
cle is interrupted ( P.166)
or the electronic key cannot
be used because the battery
is depleted, the smart key
system and wireless remote
control cannot be used. In
such cases, the doors can
be opened and the hybrid
system can be started by
following the procedure
below.
NOTICE
■In case of a smart key system
malfunction, or other key
related problems
Take your vehicle with all the
electronic keys provided with your
vehicle to your Toyota dealer.
Locking and unlocking
the doors

5087-2. Steps to take in an emergency
possible.
■Starting the hybrid system
when the 12-volt battery is dis-
charged
The hybrid system cannot be
started by push-starting.
■To prevent 12-vol t battery dis-
charge
●Turn off the headlights and the
audio system while the hybrid sys-
tem is off.
●Turn off any unnec essary electri-
cal components when the vehicle
is running at a low speed for an
extended period, such as in heavy
traffic.
■When the 12-volt battery is
removed or discharged
●Information stor ed in the ECU is
cleared. When the 12-volt battery
is depleted, have the vehicle
inspected at your Toyota dealer.
●Some systems may require initial-
ization. ( P.554)
■When removing the 12-volt bat-
tery terminals
When the 12-volt battery terminals
are removed, the information stored
in the ECU is cleared. Before
removing the 12- volt battery termi-
nals, contact your Toyota dealer.
■Charging the 1 2-volt battery
The electricity stor ed in the 12-volt
battery will discharge gradually even
when the vehicle is not in use, due
to natural discharge and the drain-
ing effects of certa in electrical appli-
ances. If the vehicle is left for a long
time, the 12-volt battery may dis-
charge, and the hybrid system may
be unable to start. (The 12-volt bat-
tery recharges aut omatically while
the hybrid system is operating.)
■When recharging or replacing
the 12-volt battery
●In some cases, i t may not be pos-
sible to unlock the doors using the smart key system when the 12-
volt battery is discharged. Use the
wireless remote c
ontrol or the
mechanical key to lock or unlock
the doors.
●The hybrid syste m may not start
on the first attemp t after reinstall-
ing the 12-volt battery. In that
case, start the hybrid system in
the same manner as when the
electronic key does not operate
properly ( P.505). This is not a
malfunction, as the hybrid system
will start normally on the second
attempt.
●The power switch mode is memo-
rized by the vehicle. When the 12-
volt battery is reconnected, the
system will return to the mode it
was in before the 12-volt battery
was discharged. Before discon-
necting the 12-volt battery, turn
the power switch off.
If you are unsure what mode the
power switch was in before the
12-volt battery discharged, be
especially careful when recon-
necting the 12-volt battery.
■When replacing t he 12-volt bat-
tery
●Use a 12-volt battery that con-
forms to European regulations.
Use a battery that the case size is
same as the previous one (LN2),
20 hours rate ca pacity (20HR) is
equivalent (60Ah) or greater, and
performance rating (CCA) is
equivalent (563A) or greater.
• If the sizes differ , the 12-volt bat-
tery cannot be properly secured.
• If the 20 hour rate capacity is low,
even if the time p eriod where the
vehicle is not used is a short time,
the 12-volt battery may discharge
and hybrid system may not be
able to start.
●Use a 12-volt battery with a han-
dle. If a 12-volt battery without a
handle is used, removal is more
difficult.
●When removing the 12-volt bat-

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

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-

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

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