Steel Plates
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2003 GMC Savana Special, 2003 GMC Savana Camper Special, 2003 GMC Savana, 2003 Chevrolet RV Cutaway, and 2003 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
Wipe the plates dry and check the plates for heat discoloration. If the surfaces are smooth, even if color smear is indicated/you can reuse the plate. If the plate is discolored with heat spots or if the surface is scuffed, replace the plate.