2008 Toyota Sienna Owners Manual - Page 195
2008 Toyota Sienna Manual
Page 195 highlights
08 SIENNA_U (L/O 0801) Use the anchor brackets on the back of the second seats to attach the top strap. Anchor brackets are installed for each second seating position. Anchor brackets 7−passenger models TO USE THE ANCHOR BRACKET: 1. Remove the head restraint. Anchor brackets 8−passenger models 154 2008 SIENNA from Aug. '08 Prod. (OM45455U)