Page 150 of 872

150 1-4. Opening and closing the windows and moon roof
SIENNA_OM_OM45483U_(U)
■The windows can be operated when (power type)
Vehicles without a smart key system
The engine switch is in the “ON” position.
Vehicles with a smart key system
The “ENGINE START STOP” switch is in IGNITION ON mode.
■ Operating the windows after turnin g the engine off (power type)
Vehicles without a smart key system
The power type windows can be operated for approximately 45 seconds
even after the engine switch is turned to the “ACC” or “LOCK” position. They
cannot, however, be operated once either front door is opened.
Vehicles with a smart key system
The power type windows can be operated for approximately 45 seconds
even after the “ENGINE START STOP” switch is turned to ACCESSORY
mode or turned off. They cannot, however, be operated once either front
door is opened.
CAUTION
■ Closing the windows
Observe the following precautions.
Failing to do so may result in death or serious injury.
●Check to make sure that all passengers do not have any part of their body
in a position where it could be caught when a window is being operated.
● Do not allow children to operate the power windows.
Closing a power window on someone can cause serious injury, and in
some instances, even death.
Page 153 of 872

153
1-4. Opening and closing the windows and moon roof
1
Before driving
SIENNA_OM_OM45483U_(U)
■
The moon roof can be operated when
Vehicles without a smart key system
The engine switch is in the “ON” position.
Vehicles with a smart key system
The “ENGINE START STOP” switch is in IGNITION ON mode.
■ Operating the moon roof af ter turning the engine off
Vehicles without a smart key system
The moon roof can be operated for approximately 45 seconds after the
engine switch is turned to the “ACC” or “LOCK” position. It cannot, however,
be operated once either front door is opened.
Vehicles with a smart key system
The moon roof can be operated for approximately 45 seconds after the
“ENGINE START STOP” switch is turned to ACCESSORY mode or turned
off. It cannot, however, be operated once either front door is opened.
■ Jam protection function
If an object is detected between the moon roof and the frame while the moon
roof is closing, travel is stopped and the moon roof opens slightly.
Page 156 of 872
156
SIENNA_OM_OM45483U_(U)
1-5. Refueling
Opening the fuel tank cap
Perform the following steps to open the fuel tank cap:
■Before refueling the vehicle
Vehicles without a smart key system
Turn the engine switch off and ensure that all the doors and win-
dows are closed.
Vehicles with a smart key system
Turn the “ENGINE START STOP” switch off and ensure that all
the doors and windows are closed.
■ Opening the fuel tank cap
Pull up the opener to open the
fuel filler door.
Turn the fuel tank cap slowly
to open.
STEP1
STEP2
Page 160 of 872
160
SIENNA_OM_OM45483U_(U)
1-6. Theft deterrent system
Engine immobilizer system
: If equipped
The vehicle’s keys have built-in transponder chips that prevent the
engine from starting if a key has not been previously registered in
the vehicle’s on-board computer.
Never leave the keys inside the vehicle when you leave the vehicle.
Vehicles without a smart
key system
The indicator light flashes after
the key has been removed
from the engine switch to indi-
cate that the system is operat-
ing.
The indicator light stops flash-
ing after the registered key
has been inserted into the
engine switch to indicate that
the system has been can-
celed.
Vehicles with a smart key
system
The indicator light flashes after
the “ENGINE START STOP”
switch has been turned off to
indicate that the system is
operating.
The indicator light stops flash-
ing after the “ENGINE START
STOP” switch has been turned
to ACCESSORY or IGNITION
ON mode to indicate that the
system has been canceled.
Page 161 of 872

161
1-6. Theft deterrent system
1
Before driving
SIENNA_OM_OM45483U_(U)
■
System maintenance
The vehicle has a maintenance-free type engine immobilizer system.
■ Conditions that may cause the system to malfunction
● If the grip portion of the key is in contact with a metallic object
● If the key is in close proximity to or touching a key to the security system
(key with a built-in transponder chip) of another vehicle
■ Certifications for the engine immobilizer system
U.S.A.
Vehicles without a smart key system
FCC ID: WRKRI-34BTY
Vehicles with a smart key system
FCC ID: NI4TMIMB-1
This device complies with part 15 of the FCC Rules. Operation is subject to
the following two conditions: (1) This device may not cause harmful interfer-
ence, and (2) this device must accept any interference received, including
interference that may cause undesired operation.
Canada
This device complies with Industry Canada licence-exempt RSS stan-
dard(s). Operation is subject to the following two conditions: (1) this device
may not cause interference, and (2) this device must accept any interfer-
ence, including interference that may cause undesired operation of the
device.
Page 163 of 872
163
1
1-6. Theft deterrent system
Before driving
SIENNA_OM_OM45483U_(U)
Alarm
: If equipped
The system sounds the alarm and flashes the lights when forced
entry is detected.
■ Triggering of the alarm
The alarm is triggered in the fo llowing situations when the alarm
is set:
● A locked door is unlocked or opened in any way other than
using the entry function (vehicles with a smart key system) or
wireless remote control. (The doors will lock again automati-
cally.)
● The hood is opened.
■ Setting the alarm system
Close the doors and hood,
and lock all the doors using
the entry function or wireless
remote control. The system
will be set automatically after
30 seconds.
The indicator light changes
from being on to flashing when
the system is set.
Page 164 of 872
164 1-6. Theft deterrent system
SIENNA_OM_OM45483U_(U)
■System maintenance
The vehicle has a maintenance-free type alarm system.
■ Items to check before locking the vehicle
To prevent unexpected triggering of the alarm and vehicle theft, make sure
of the following:
●Nobody is in the vehicle.
● The windows and moon roof (if equipped) are closed before the alarm is
set.
● No valuables or other personal items are left in the vehicle.
■ Deactivating or stopping the alarm
Do one of the following to deactivate or stop the alarm:
●Unlock the doors using the entry function or wireless remote
control.
● Vehicles without a smart key system: Turn the engine switch
to the “ACC” or “ON” position, or start the engine.
Vehicles with a smart key system: Turn the “ENGINE START
STOP” switch to ACCESSORY or IGNITION ON mode, or
start the engine.
(The alarm will be deactivated or stopped after a few sec-
onds.)
Page 165 of 872
165
1-6. Theft deterrent system
1
Before driving
SIENNA_OM_OM45483U_(U)
■
Triggering of the alarm
The alarm may be triggered in the following situations.
(Stopping the alarm deactivates the alarm system.)
■ Alarm-operated door lock
●When the alarm is operating, the doors are locked automatically to pre-
vent intruders.
● Do not leave the key inside the vehicle when the alarm is operating, and
make sure the key is not inside the vehicle when recharging or replacing
the battery.
●The doors are unlocked using the key.
● A person inside the vehicle opens a
door or hood.
● The battery is recharged or replaced
when the vehicle is locked.