Owner's Manual
Page 410
...painted surfaces to clean exterior lamps and lenses. Do not use waxes and polishes that are non-abrasive and made for a basecoat/clearcoat paint finish. GM-approved cleaning products can be obtained from industrial chimneys, etc., can take their toll over a period .... High pressure car washes may be flushed promptly and not allowed to avoid surface scratches and water spotting. The vehicle has a "basecoat/clearcoat" paint finish. The clearcoat gives more depth and gloss to enter the vehicle. Exterior painted surfaces are made for a basecoat...
...painted surfaces to clean exterior lamps and lenses. Do not use waxes and polishes that are non-abrasive and made for a basecoat/clearcoat paint finish. GM-approved cleaning products can be obtained from industrial chimneys, etc., can take their toll over a period .... High pressure car washes may be flushed promptly and not allowed to avoid surface scratches and water spotting. The vehicle has a "basecoat/clearcoat" paint finish. The clearcoat gives more depth and gloss to enter the vehicle. Exterior painted surfaces are made for a basecoat...