WARNING: This page is about a different car, the 2004 Chevrolet Monte Carlo and 2004 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
Position the trim panel on the 2 studs (1) located on the child seat bracket.
Press down firmly to secure the panel.
Fig 1: Installing Trim Panel To Child Seat Bracket Studs