1998 Buick Riviera Owner's Manual

Cleaning the Outside of theWindshield and Wiper BladesIf the windshield is not clear after using the windshieldwasher, or if the wiper blade chatters when running,wax, sap or other material may be on the blade orwindshield.Clean the outside of the windshield with GM WindshieldCleaner, Bon Ami@ Powder (non-scratching glasscleaning powder), GM Part No. 1050011. The windshieldis clean if beads do not form when you rinse it with water. Don’t use strong soaps or chemical detergents. Useliquid hand, dish or car washing (mild detergent) soaps.Grime from the windshield will stick to the wiperYou can get GM-approved cleaning products from yourblades and affect their performance. Clean the bladedealer. (See “Appearance Care and Materials” in theby wiping vigorously with a cloth soaked inIndex.) Don’t use cleaning agents that are petroleumfull-strength windshield washer solvent. Thenbased, or that contain acid or abrasives. All cleaningrinse the blade with water.agents should be flushed promptly and not allowed toCheck the wiper blades and clean them as necessary; dry on the surface, or they could stain. the Dry finishreplace blades that look worn.with a soft, clean chamois or an all-cotton towel toavoid surface scratches and water spotting.WeatherstripsSilicone grease on weatherstrips will make them lastlonger, seal better, and not stick or squeak. Applysilicone grease with a clean cloth at least every sixmonths. During very cold, damp weather more frequentapplication may be required. (See “RecommendedFluids and Lubricants” in the Index.)Cleaning the Outside of Your VehicleThe paint finish on your vehicle provides beauty, deptof color, gloss retention and durability.Washing Your VehicleThe best way to preserve your vehicle’s finish is tokeep it clean by washing it often with lukewarm orcold water.Don’t wash your vehicle in the direct rays of the sun.High pressure car washes may cause water to enteryour vehicle.6-51