1998 Chevrolet Blazer Owner's Manual - Page 323

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 beattached across the defogger grid. Clean the outside of the windshield with GM Windshield Cleaner, BonAmi' Powder (non-scratching glass cleaning powder), GM Part No. 1050011. The windshield is clean if beads do not form when you rinse it with water. Grime from the windshield will stick to wiper blades the and affect their performance. Clean the blade by wiping vigorously with a cloth soaked in full-strength windshield washer solvent. Then rinse the blade water. with Check the wiper blades and clean them necessary; as replace blades that look worn. Weatherstrips Cleaning the Outside of the Windshield,Silicone grease on weatherstrips will make them last longer, seal better, and not stick or squeak. Apply Backglass 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 blade the or windshield. silicone grease with a clean cloth at least every six months. During very cold, damp weather more frequent application may be required. (See "Recommended Fluids andLubricants" in the Index.) 6-53