WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: View Of Instrument Panel (I/P) Outer Trim Cover
Courtesy of GENERAL MOTORS CORP.
Remove the instrument panel (IP) trim cover by pulling outward to disengage the retainers.