WARNING: This page is about a different car, the 2005 GMC Canyon and 2005 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: View Of Console Tray
Courtesy of GENERAL MOTORS CORP.
Position the tray to the console.
Ensure the retaining tabs are indexed to the corresponding holes in the console.
Push downward on the tray seating the retaining tabs.