1997 Chevrolet Corvette Owner's Manual - Page 289

Care of Safety Belts Keep belts clean and dry. Cleaning the Outside the of Windshield and Wiper Blades If the windshield is not clear after using the windshield washer, or if the wiper blade chatters when running, wax, sap or other material may be on the blade or windshield. Do not bleach or dye safety belts. If you do, it may severely weaken them. In a crash, they might notbe able to provide adequate protection. Clean safety belts only with mild soap and lukewarm water. Clean the outside of the windshield with GM Powder (non-scratching Windshield Cleaner, Bon glass cleaning powder), GM Part No. 1050011. The windshield is clean if beads do not form when yourinse it with water. A m i @ Cleaning Glass Surfaces Glass should be cleaned often. GM Glass Cleaner (GM Part No. 1050427) or a liquid household glass cleaner will remove normal tobacco smoke and dust films on interior glass. Don't use abrasive cleaners on glass, because they may cause scratches. Avoid placing decals on the inside rear window, since they may have to be scraped off later. If abrasive cleaners are used on theinside of the rear window, an electric defogger element may be damaged. Any temporary license should not be attached across the defogger grid. If you use aglass treatment or conditioner containing ethyl alcohol or ethyl sulfate on your glass, be sure to remove the acrylic roof panel, if so equipped. These products may damage the panel. Grime horn the windshield will stick to the wiper blades and affect their performance. Clean the blade wiping by vigorously with a cloth soaked in full-strength windshield wt i washer solvent. Then rinse the bladeh water. Check the wiper blades and clean them as necessary; replace blades that look worn.