2006 Toyota Sienna Owners Manual - Page 319

06 SIENNA_U (L/O 0603) INSTALLING THE SECOND SEAT IN THE FRONT AND POSITION CENTER CENTER The second center seat can be used in the forward position. To use the center second seat in the forward position, install according to the following procedure. If you lock the rear legs before the front legs are not lock securely, disengage the rear leg lock by pulling the rear leg release lever. Then reinstall the seat following the correct procedure. 87 2006 SIENNA from March '06 Prod. (OM45443U)