1997 Buick Riviera Owner's Manual - Page 292

Cleaning the Outside the of Windshield and W.per Blades I€the windshield is not clear using the windshield after running, wax, washer, or if the wiper blade chatters when sap or other material may be on the blade or windshield. Clean the outside of the windshield with GM Windshield Powder (non-scratching glass Cleaner, Bon cleaning powder), GMPart No. 1050011. The windshield is clean if beads do not form when you rinse it with water. A m i @ -!aning the Outside Your Buick of of color, gloss retention and durability. 'l'he paint finish on your vehicle provides beauty, depth Washing Your Vehicle The best way to preserve your vehicle's finish is to keep it clean by washing it often with lukewarm or cold water. of Don't wash your vehicle the direct rays the sun. in Don't use strong soaps or chemical detergents. Use liquid hand, dish car washing (mild detergent) soaps. or Grime from the windshield will stick the wiper blades to Don't use cleaning agents that me petroleum based, and affect their performance. Clean the blade by wiping or that contain acid or abrasives. cleaning agents All vigorously with a cloth soaked in full-strength windshield should be flushed promptly and not alloweddry on to washer solvent. Then rinse the blade with water. r the surface,o they could stain. Dry the finish with a soft, clean charnois or an all-cotton towel to avoid Check the wiper blades and clean them as necessary; surface scratches and water spotting. replace blades that look worn. High pressurecar washes may cause water to enter your vehicle. Weatherstrips Silicone grease on weatherstrips will make them last longer, seal better, and not stick or squeak. Apply 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 and Lubricants" in Index.) the Cleaning ExteriorLampsLenses Use lukewarm or cold water, a soft cloth a liquid and hand, dish or vehicle washing (mild detergent) soap to clean exterior lamps and lenses. Follow instructions under "Washing Your Vehicle."