WARNING: This page is about a different car, the 2003 Pontiac Sunfire and 2003 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.
Position the I/P upper trim pad (4) tabs to the I/P retainers.
Install the I/P upper trim pad (4) to the I/P, pressing into place until fully seated.
Fig 1: Installing I/P Upper Trim Pad To I/P (Pontiac)