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 197 of 872
197
1-7. Safety information
1
Before driving
SIENNA_OM_OM45483U_(U)
Third seats
Child restraint LATCH anchors
LATCH anchors are provided
for center seat. (Buttons dis-
playing the location of the
anchors are attached to the
seats.)
■Using the seat belts
Seat belts equipped with a
child restraint locking mecha-
nism (ALR/ELR belts except
driver’s seat belt) (P. 132)
■ Using the top tether strap
Anchor brackets (for top tether
strap)
Page 203 of 872
203
1-7. Safety information
1
Before driving
SIENNA_OM_OM45483U_(U)
Installing child restraints using a
seat belt (child restraint lock
function belt)
■ Rear facing Infant seat/convertible seat
Place the child restraint system
on the rear seat facing the rear
of the vehicle.
Run the seat belt through the
child restraint system and insert
the plate into the buckle. Make
sure that the belt is not twisted.
Fully extend the shoulder belt
and allow it to retract to put it in
lock mode. In lock mode, the belt
cannot be extended.
STEP1
STEP2
STEP3
Page 205 of 872
205
1-7. Safety information
1
Before driving
SIENNA_OM_OM45483U_(U)
Fully extend the shoulder belt
and allow it to retract to put it in
lock mode. In lock mode, the belt
cannot be extended.
While pushing the child restraint
system into the rear seat, allow
the shoulder belt to retract until
the child restraint system is
securely in place.
After the shoulder belt has
retracted to a point where there is
no slack in the belt, pull the belt to
check that it cannot be extended.
If the child restraint has a top te
ther strap, the top tether strap
should be latched onto the top tether strap anchor.
( P. 207, 208)
STEP3
STEP4
STEP5
Page 207 of 872
207
1-7. Safety information
1
Before driving
SIENNA_OM_OM45483U_(U)
Child restraint systems with a
top tether strap (second seat)
Secure the child restraint system
using the seat belt or LATCH
anchors, and adjust the head
restraint to the uppermost posi-
tion.
*: Ottoman seat only
Latch the hook onto the anchor
bracket and tighten the top tether
strap.
Make sure the top tether strap is
securely latched.
Adjust the head restraint to the
downmost lock position.
STEP1*
STEP2
STEP3
Page 209 of 872

209
1-7. Safety information
1
Before driving
SIENNA_OM_OM45483U_(U)
CAUTION
■
When installing a booster seat
To prevent the belt from going into ALR lock mode, do not fully extend the
shoulder belt. ALR mode causes the belt to tighten only which could cause
injury or discomfort to the child. (P. 132)
■ When installing a child restraint system
Follow the directions given in the child restraint system installation manual
and fix the child restraint system securely in place.
If the child restraint system is not correctly fixed in place, the child or other
passengers may be seriously injured or even killed in the event of sudden
braking, sudden swerving or an accident.
●If the driver’s seat interferes with the
child restraint system and prevents it
from being attached correctly, attach
the child restraint system to the right-
hand rear seat.
● Adjust the front passenger seat or sec-
ond seats so that it does not interfere
with the child restraint system.
● Only put a forward-facing child restraint
system on the front seat when unavoid-
able. When installing a forward-facing
child restraint system on the front pas-
senger seat, move the seat as far back
as possible even if “AIR BAG OFF” indi-
cator light is illuminated. Failing to do
so may result in death or serious injury
if the airbags deploy (inflate).
Page 210 of 872

210 1-7. Safety information
SIENNA_OM_OM45483U_(U)
CAUTION
■When installing a child restraint system
●When installing a child restraint system on the third center seat, adjust
both seatbacks at the same angle. Otherwise, the child restraint system
cannot be securely restrained and this may cause death or serious injuries
in the event of sudden braking, sudden swerving or an accident.
● When using the LATCH anchors for a child restraint system, move the seat
as far back as possible (second seat only), with the seatback close to the
child restraint system.
● When a booster seat is installed, always ensure that the shoulder belt is
positioned across the center of the child’s shoulder. The belt should be
kept away from the child’s neck, but not so that it could fall off the child’s
shoulder. Failing to do so may result in death or serious injury in the event
of sudden braking, sudden swerving or an accident.
● Ensure that the belt and plate are securely locked and the seat belt is not
twisted.
● Push and pull the child restraint system from side to side and forward to be
sure it is secure.
● After securing a child restraint system, never adjust the seat.
● Follow all installation instructions provided by the child restraint system
manufacturer.
Page 211 of 872

211
1-7. Safety information
1
Before driving
SIENNA_OM_OM45483U_(U)
CAUTION
■
When installing a child restraint s ystem to the AUTO ACCESS SEAT
(if equipped)
■ Do not use a seat belt extender
If a seat belt extender is used when installing a child restraint system, the
seat belt will not securely hold the child restraint system, which could cause
death or serious injury to the child or other passengers in the event of sud-
den braking, sudden swerving or an accident.
■ To correctly attach a child r estraint system to the anchors
When using the LATCH anchors, be sure that there are no foreign objects
around the anchors and that the seat belt is not caught behind the child
restraint. Make sure the child restraint system is securely attached, or it may
cause death or serious injury to the child or other passengers in the event of
a sudden braking, sudden swerving or an accident.
● Do not operate the AUTO ACCESS
SEAT while a child restraint system is
fixed to the seat by the child restraint
lock function belt.
If you force the seat operation, the seat,
seat belt or child restraint system may
be damaged, or may cause an injury.
● If a child restraint system is fixed to the
AUTO ACCESS SEAT by the LATCH
system, be careful that the child’s head,
hands and legs do not hit the body of
the vehicle when operating the seat.
Injuries may be caused.