Toyota Sienna 2010 Owner's Manual page 74

Stowing the third seats (power seats)
You can operate the power third seats when the engine switch is in
the "ACC" or "LOCK" position, and/or the shift lever is in P.
Before stowing the third seats
■
STEP 1
Stow the center seat belt. (→P. 87)
STEP 2
Stowing the third seats
■
STEP 1
STEP 2
1-3. Adjustable components (seats, mirrors, steering wheel)
Lower the head restraints to the
lowest position and stow the seat
belt buckles.
Push and hold the stowing
switch.
A beep sounds twice to indicate
the start of the operation. The
beep sounds again twice when
the operation is completed.
Open the flaps.
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