Owner's Manual
Page 270
...). Clean the outside the windshield with GM Windshield Cleaner, Bon-Ami of the sun. Use liquid hand, dishor car washing (mild detergent) soaps. Avoid placing decals on a regular basis and replaced when worn. The windshield is to keepit clean by wiping vigorously with a soft, clean chamois or a 100%cotton towel to...
...). Clean the outside the windshield with GM Windshield Cleaner, Bon-Ami of the sun. Use liquid hand, dishor car washing (mild detergent) soaps. Avoid placing decals on a regular basis and replaced when worn. The windshield is to keepit clean by wiping vigorously with a soft, clean chamois or a 100%cotton towel to...