2009 Chevrolet Silverado 2500 HD Extended Cab Owner's Manual - Page 158

Cleaning the Mirror Do not spray glass cleaner directly on the mirror. Use a soft towel dampened with water. Outside Towing Mirrors Outside Manual Mirrors Adjust the outside mirror so that the side of the vehicle and the area behind are seen. Manually fold the mirrors inward to prevent damage when going through an automatic car wash. To fold, push the mirror toward the vehicle. Push the mirror outward, to return to its original position. Using hood-mounted air deflectors and add-on convex mirror attachments could decrease mirror performance. If the vehicle has towing mirrors, they can be adjusted for a clearer view of the objects behind you. Manually pull out the mirror head to extend it for better visibility when towing a trailer. Manually fold the mirrors forward or rearward. The lower portion of the mirror is convex. A convex mirror's surface is curved to see more from the driver seat. The convex mirror can be adjusted manually to the driver preferred position for better vision. The mirror may have a turn signal arrow that flashes in the direction of the turn or lane change. 2-58