2023 TOYOTA SIENNA HYBRID remote start

4196-3. Do-it-yourself maintenance
6
Maintenance and care
The 12-volt battery is located in
the right-hand side of luggage
compartment.
■Before recharging
When recharging, the 12-volt bat-
tery produces hydrogen gas which
is flammable and explosive. There-
fore, observe the following precau-
tions before recharging:
●If recharging with the 12-volt bat-
tery installed on the vehicle, be
sure to disconnect the ground
cable.
●Make sure the power switch on
the charger is off when connecting
and disconnecting the charger
cables to the 12-volt battery.
■After recharging/reconnecting
the 12-volt battery
●Unlocking the doors using the
smart key system may not be pos-
sible immediately after reconnect-
ing the 12-volt battery. If this
happens, use the wireless remote
control or the mechanical key to
lock/unlock the doors.
●Start the hybrid system with the
power switch in ACC. The hybrid
system may not start with the
power switch turned off. How-
ever, the hybrid system will oper-
ate normally from the second attempt.
●The power switch mode is
recorded by the vehicle. If the 12-
volt battery is reconnected, the
vehicle will return the power
switch mode to the status it was in
before the 1
2-volt battery was dis-
connected. Make sure to turn off
the power switch before discon-
nect the 12-volt battery. Take
extra care when connecting the
12-volt battery if the power switch
mode prior to discharge is
unknown.
If the hybrid system will not start
even after multiple attempts at all
methods above, contact your
Toyota dealer.12-volt battery
Location
WARNING
■Chemicals in the 12-volt bat-
tery
The 12-volt battery contains poi-
sonous and corrosive sulfuric acid
and may produce hydrogen gas
which is flammable and explosive.
To reduce the risk of death or
serious injury, take the following
precautions while working on or
near the 12-volt battery:
●Do not cause sparks by touch-
ing the 12-volt battery terminals
with tools.
●Do not smoke or light a match
near the 12-volt battery.
●Avoid contact with eyes, skin
and clothes.
●Never inhale or swallow electro-
lyte.
●Wear protective safety glasses
when working near the 12-volt
battery.
●Keep children away from the
12-volt battery.

5027-2. 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.542)
●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
NOTICE
●During refueling, fuel may spill
out from the filler opening due to
air being discharged from inside
the fuel tank. Therefore, fill the
fuel tank carefully and slowly.
If the electronic key
does not operate 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, o r 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

5067-2. Steps to take in an emergency
recharge the 12-volt battery
of your vehicle.
6 Maintain the engine speed of
the second vehicle and start
the hybrid system of your
vehicle by turning the power
switch to ON.
7 Make sure the “READY” indi-
cator comes on. If the indica-
tor light does not come on,
contact your Toyota dealer.
8 Once the hybrid system has
started, remove the jumper
cables in the exact reverse
order from which they were
connected.
9 Close the exclusive jump
starting terminal cover, and
reinstall the fuse box cover to
its original position.
Once the hybrid system starts,
have the vehicle inspected at
your Toyota dealer as soon as
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 stored in the ECU is
cleared. When the 12-volt battery
is depleted, have the vehicle
inspected at you r Toyota dealer.
●Some systems may require initial-
ization. (P.551)
■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 12-volt battery
The electricity stored in the 12-volt
battery will discha rge gradually even
when the vehicle i s not in use, due
to natural dischar ge and the drain-
ing effects of certain 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 automatically while
the hybrid system is operating.)
■When recharging or replacing
the 12-volt battery
●In some cases, it 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.503). 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

5448-2. Customization
*: If equipped
■Power back door*1 ( P.153)
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–
Operations of the power
back door switch on the over-
head console
Press 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 Index571
Seat belts ............................. 399
Clock ............................... 100, 104
Coat hooks .............................. 388
Condenser .............................. 417
Console box ............................ 367
Consumption screen.............. 122
Conversation mirror ............... 370
Coolant Checking .............................. 416
Preparing and c hecking before
winter.................................. 344
Warning light ........................ 465
Cooling system ...................... 416 Hybrid system overheating... 509
Cruise control Dynamic radar cruise control with full-speed range .......... 291
Cup holders ............................ 368
Current fuel consumption ..... 125
Current fuel economy ............ 106
Curtain shield airbags ............. 41
Customizable features ........... 538
D
Daytime running light system251 Replacing light bulbs ............ 448
Defogger Outside rear view mirrors ..... 350
Rear window ........................ 350
Windshield............................ 349
Digital Rear-view Mirror ......... 189 Adjustment ........................... 191
Cleaning ............................... 194
Dinghy towing ........................ 232
Display BSM (Blind Spot Monitor)..... 303
Consumption screen ............ 122
Driving information ............... 106
Dynamic radar cruise control with full-speed range .......... 291
Energy monitor ..................... 122
Head-up display ................... 118 Intuitive parking assist ..........312
LTA (Lane Traci
ng Assist) ....284
Multi-information display.......104
RCD (Rear Camera Detection) ...........................................320
RCTA (Rear Cross Traffic Alert) ...........................................303
Warning messages ...............475
Do-it-yourself maintenance .403, 408
Door lock Back door .............................150
Front doors ...........................132
Sliding doors.........................137
Smart key system .................165
Wireless remote control........130
Door pockets...........................370
Doors Automatic door locking and unlocking system ................136
Back door .............................150
Door glasses ........................202
Door lock ..............................132
Front doors ...........................132
Open door warning buzzer ...136
Outside rear view mirrors .....199
Sliding door child-protectors .142
Sliding doors.........................137
Driver’s seat belt reminder light ...............................................471
Drive-start control ..................211
Driving Break-in tips .........................211
Correct posture .......................33
Driving mode select switch ...334
Hybrid Electric Vehicle driving tips ......................................342
Procedures ...........................210
Winter drive tips....................344
Driving informatio n display ...106
Driving mode select switch ...334
Driving position memory .......179

Alphabetical Index579
Inside rear view mirror.......... 188
Intuitive parking assist .......... 312
LTA (Lane Tracing Assist).... 278
Parking Support Brake function (rear-crossing vehicles) ...... 304
Parking Support Brake function (static objects) .................... 312
Rain-sensing windshield wipers ........................................... 259
RCTA (Rear Cross Traffic Alert) ........................................... 304
Toyota Safety Sense ............ 265
Service plug .............................. 83
Service reminder message .... 403
Shift lever ................................ 241 If the shift lever cannot be shifted from P................................. 243
Shift lock system .................... 243
Shopping bag hooks .............. 387
Side airbags .............................. 41
Side auxiliary box ................... 372
Side marker lights Light switch .......................... 251
Replacing light bulbs ............ 448
Side mirrors ............................ 199 Adjustment ........................... 199
BSM (Blind Spot Monitor)..... 303
Folding ................................. 200
Heaters................................. 350
Linked mirror function when reversing ............................ 200
Side turn signal lights Replacing light bulbs ............ 448
Turn signal lever................... 245
Side windows ...... ................... 202
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 ...................165 Antenna location...................165
Entry functions......132, 138, 151
Starting the hybrid system ....234
Warning message . ...............475
Snow tires ...............................344
Spare tire Storage location ...................490
Spark plug ...............................520
Specifications .........................516
Speedometer .....................97, 101
Sport mode..............................334
Steering wheel Adjustment ...........................186
Heated steering wheel..........361
Meter control switches..........105
Stop lights Replacing light bulbs ............448
Storage feature .. .....................366
Storage precaution s ...............367
Stuck If the vehicle becomes stuck 512
Suggestion functi on ...............117
Sunshade ........................205, 385
Sun visors ...............................374
Switches “ODO TRIP” switch .........99, 103
“SOS” button ..........................75
Automatic High Beam switch 253
Brake hold switch .................249
BSM (Blind Spot M onitor) .....303
Digital Rear-view Mirror control switches..............................189
Door lock switch ...................135
Driving mode select switch ...334
Driving position memory switches..............................179
Dynamic radar cruise control with full-speed range ..........292
Emergency flashers switch...456

582Alphabetical Index
........................................... 303
RCTA OFF indicator............. 468
Seat belt reminder ................ 471
Vehicle sway warning........... 282
Warning lights ABS ...................................... 466
Brake hold operated indicator........................................... 469
Brake Override System ........ 469
Brake system ....................... 464
Charging system .................. 464
Drive-Start Control ............... 469
Electric power steering ......... 466
Engine .................................. 465
High coolant temperature ..... 465
Hybrid system overheat ....... 465
Intuitive parking assist OFF indi- cator ................................... 467
Low engine oil pressure ....... 465
Low fuel level ....................... 470
LTA indicator ........................ 467
Malfunction indicator lamp ... 465
Parking brake indicator ........ 470
PCS warning light................. 467
PKSB (Parking Support Brake) ........................................... 469
PKSB OFF indicato r ............. 468
RCD OFF indicator............... 468
RCTA OFF indicator............. 468
Seat belt reminder light ........ 471
Slip indicator......................... 469
SRS ...................................... 466
Tire pressure ........................ 470
Warning messages ................ 475
Washer Checking .............................. 418
Low washer fluid warning mes-sage ........................... 418, 475
Preparing and c hecking before
winter.................................. 344
Switch........................... 257, 260
Washing and waxing .............. 396 Weights
Cargo capacity .............217, 220
Load limits ............................220
Wheels .....................................437 Replacing wheels .................437
Size ......................................523
Window glasses Power windows ....................202
Window lock switch ...............204
Windows Power windows ....................202
Rear window defogger .........350
Washer .........................257, 260
Windshield defogge r ..............349
Windshield wiper d e-icer .......353
Windshield wipers Intermittent windshield wipers...........................................257
Position.........................257, 260
Rain-sensing windshield wipers ...........................................257
Winter driving tips ..................344
Wireless charger.....................381
Wireless remote control.........130 Battery-saving function .........166
Locking/Unlocking ................130
Panic mode ..........................130
Replacing the battery ...........444
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
regarding the equipment
listed below.
· Navigation system