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.
Remove the bolts that retain the radiator support diagonal brace.
Remove the radiator support diagonal brace from the vehicle.
Fig 1: Removing/Installing Radiator Support Diagonal Brace