Toyota Sienna 2010 Owner's Manual page 73

1-3. Adjustable components (seats, mirrors, steering wheel)
Returning the third seats
■
STEP 1
STEP 2
Raise the seatback. (→P. 71)
STEP 3
74
Pull and hold the "TO STOW/
USE" strap and lift up the seat
rearward.
Push the seat forward and then
engage the front leg locks.
Make sure the front legs are
locked securely.