WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
Open the hood.
Remove the push-pins that retain the baffle.
Remove the bolts that retain the baffle to the radiator support.
Remove the radiator baffle from the vehicle.
Fig 1: Removing/Installing Radiator Air Intake Baffle, Bolts & Push-Pins