Page 684 of 872

684 4-3. Do-it-yourself maintenance
SIENNA_OM_OM45483U_(U)
■After recharging/reconnecting the battery (vehicles with a smart key
system)
●Unlocking the doors using the smart key system may not be possible
immediately after reconnecting the battery. If this happens, use the wire-
less remote control or the mechanical key to lock/unlock the doors.
● Start the engine with the “ENGINE START STOP” switch in ACCES-
SORY mode. The engine may not start with the “ENGINE START STOP”
switch turned OFF. However, the engine will operate normally from the
second attempt.
● The “ENGINE START STOP” switch mode is recorded by the vehicle. If
the battery is reconnected, the vehicle will return the “ENGINE START
STOP” switch mode to the status it was in before the battery was discon-
nected. Make sure to turn off the power before disconnecting the battery.
Take extra care when connecting the battery if the “ENGINE START
STOP” switch mode prior to discharge is unknown.
If the system will not start even after multiple attempts, contact your Toyota
dealer.
■ Disconnecting the battery (vehic les with an AUTO ACCESS SEAT)
Do not disconnect the battery while operating the AUTO ACCESS SEAT.
The AUTO ACCESS SEAT will become inoperable.
For details, refer to “AUTO ACCESS SEAT OWNER’S MANUAL”.
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5
When trouble arises
781
5-2. Steps to take in an emergency
SIENNA_OM_OM45483U_(U)
If the electronic key does not operate properly
Locking and unlocking the doors and key linked functions
Using the mechanical key
( P. 33) in order to perform
the following operations.
Locks all doors
Unlocks all doors
Turning the key rearward unlocks
the driver’s door. Turning the key
once again within 3 seconds
unlocks the other doors.
: If equipped
For vehicles with a smart key system : If communication between the
electronic key and vehic le is interrupted (P. 36) or the electronic
key cannot be used because the batt ery is depleted, the smart key
system and wireless remote contro l cannot be used. In such cases,
the doors can be opened or the engine can be started by following
the procedure below.
Page 863 of 872

863
Alphabetical index
SIENNA_OM_OM45483U_(U)
Rear turn signal lights
Replacing light bulbs ............ 724
Switch ................................... 243
Wattage ................................ 809
Rear view mirror Compass .............................. 634
Rear window defogger............ 421
Rear window wiper.................. 294
Replacing Electronic key battery ........... 708
Fuses.................................... 711
Light bulbs ............................ 724
Rear seat entertainment system control battery ........ 512
Tires ..................................... 761
Wireless remote control
battery ................................ 708
Reporting safety defects for
U.S. owners ........................... 838
Roof luggage carrier ............... 363
Safety connect......................... 639
Seat belts Adjusting the seat belt .......... 130
Automatic Locking
Retractor ............................ 132
Child restraint system
installation .......................... 196
Cleaning and maintaining the seat belts...................... 654
Emergency Locking Retractor ............................ 132
How to wear your seat belt... 129
How your child should wear the seat belt ....................... 133
Pre-collision seat belt ........... 132
Pregnant women,
proper seat belt use ........... 133
Reminder light ...................... 747
Seat belt extenders .............. 134
Seat belt pretensioners ........ 132 Seat heaters..............................614
Seating capacity.......................368
Seats
Adjustment ......................95, 100
Adjustment precaution .....................99, 117
Child seats/child restraint system installation ..............196
Cleaning ................................653
Driver’s seat position
memory ...............................121
Head restraint........................126
Properly sitting in the seat .....168
Seat heaters ..........................614
Service reminder
indicators ..............................249
Shift lever Automatic transaxle...............238
If the shift lever cannot
be shifted from P................. 778
Shift lock system .....................778
Side airbags..............................170
Side marker lights Replacing ..............................724
Switch....................................270
Wattage .................................809
Side mirrors Adjusting and folding ............. 141
Mirror position memory .........121
Sliding doors Sliding doors ...........................67
Wireless remote control ..........53
Smart key system Entry function ..........................36
Starting the engine ................231
S