1993 Cadillac DeVille Owner's Manual - Page 333

GLASS 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. Don't use abrasive cleaners onglass, because they may cause scratches. Avoid placing decals on theinside rear window, since they may have to be scraped off later. If abrasive cleaners areused on theinside of the rear window, an electric defogger element may be damaged. Any temporary license should not be attached across the defogger grid. CLEANING THE OUTSIDE OF THE WINDSHiELDAND WIPER BLADES If the windshield is not clear after using the windshield washer, or if the wiper blade chatters when running, wax or othermaterial may be on the blade or windshield. Clean the outside of the windshield with GM Windshield Cleaner, No. Bon-Ami Powdera (GM Part 1050011). The windshield is clean if beads do notform when you rinse it with water. Clean the bladeby wiping vigorously with cloth soaked in full strength a windshield washer solvent. Then rinse the blade with water. Wiper blades should be checked on a regular basis and replaced when worn. CLEANING THE OUTSIDE OF YOUR CADILLAC The paint finish on your vehicle provides beauty, depth of color, gloss retention anddurability. Washing Your Khicle The best way to preserve your vehicle's finish is to keep it clean by washing it often with lukewarm or cold water. Don't wash your vehicle inthe direct rays of the sun.Don't use strong soaps or chemical detergents. Useliquid hand, dish or carwashing 320