1998 GMC Jimmy Owner's Manual - Page 322

Cleaning Glass Surfaces Glass should be cleaned often. GM Glass Cleaner (GM Part No. 1050427) or a liquidhousehold glass cleaner will remove normal tobacco smoke and dust films on interior glass. Don't use abrasive cleanerson 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 the inside of the rear window, an electric defogger element may be damaged. Any temporary license should not be attached across the defogger grid. Clean the outside of the windshield with GM Windshield Cleaner, Bon Ami@Powder (non-scratching 0 olass 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 the wiper blades and affect their performance. Clean the blade by wiping vigorously with a cloth soaked in full-strength windshield washer solvent. Then rinse the blade with water. Check the wiper blades and clean them as necessary; replace blades that look worn. Weatherstrips Silicone greaseon weatherstrips will make them last longer, seal better, and not stick or squeak. Apply silicone greasewith a clean cloth at leastevery six months. During very cold, damp weather more frequent applicationmay be required. (See "Recommended Fluids and Lubricants" in the Index.) Cleaning the Outsideof the Windshield, Backglass and Wiper Blades If the windshield is not clear afterusing the windshield washer, or if the wiper blade chatters when running, wax, sap or othermaterial may be on the blade or windshield. 6-53