2005 Buick Century Owner's Manual - Page 45

Top Strap Anchor Location The vehicle has top strap anchors installed for the rear seating positions. Do not secure a child restraint with a top strap in the right front passenger's position if a national or local law requires that the top strap be anchored, or if the instructions that come with the child restraint say that the top strap must be anchored. There is no place to anchor the top strap in this position. If your child restraint is equipped with the LATCH system, see "Lower Anchorages and Top Tethers for Children (LATCH System)" following. They are located under trim covers on the rear seatback filler panel. 1-39