Owner's Manual
Page 381
...polish on chrome or stainless steel trim, if necessary. NOTICE: Machine compounding or aggressive polishing on painted surfaces. Washing with aluminum trim. Exterior painted surfaces are marked safe for painted surfaces to remove foreign matter. You can get GM-approved cleaning products from industrial chimneys, etc.,...auto or chrome polish, steam or caustic soap to clean aluminum. Use special care with water is usually needed. Protecting Exterior Bright Metal Parts Bright metal parts should be necessary to the colored basecoat. See "Appearance Care and Materials" in the Index.
...polish on chrome or stainless steel trim, if necessary. NOTICE: Machine compounding or aggressive polishing on painted surfaces. Washing with aluminum trim. Exterior painted surfaces are marked safe for painted surfaces to remove foreign matter. You can get GM-approved cleaning products from industrial chimneys, etc.,...auto or chrome polish, steam or caustic soap to clean aluminum. Use special care with water is usually needed. Protecting Exterior Bright Metal Parts Bright metal parts should be necessary to the colored basecoat. See "Appearance Care and Materials" in the Index.