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 front door.
Starting at the rear of the rocker molding scuff plate and working forward, lift upwards on the scuff plate to release the retaining tabs.
Remove the scuff plate from the vehicle.
Fig 1: Removing/Installing Front Rocker Molding Scuff Plate