2003 Toyota Sienna Owners Manual - Page 115

03 SIENNA_U (L/O 0207) Third seat (right side only) The lower anchorages for the child restraint system interfaced with the FMVSS225 specification are installed in the rear seat. The anchorages are installed in the clearance between the seat cushion and seatback of the rear seat as shown in the illustration. Child restraint system interfaced with the FMVSS225 specification can be fixed with these anchorages. In this case, it is not necessary to fix the child restraint system with a seat belt on the vehicle. Type A 2003 MY SIENNA (OM45410U) Type B 115