2008 Chevrolet Tahoe Owner's Manual - Page 152

Cleaning the Mirror Use a paper towel or similar material dampened with glass cleaner. Do not spray glass cleaner directly on the mirror as that may cause the liquid cleaner to enter the mirror housing. Outside Trailer-Tow Mirrors Outside Manual Mirrors Adjust your outside mirrors so you can just see the side of your vehicle and have a clear view of objects behind you. The mirrors can be folded in to enter narrow areas. The use of hood-mounted air deflectors and add-on convex mirror attachments may adversely affect mirror performance. If your vehicle has trailer towing type mirrors, they can be adjusted so you can have a clear view of the objects behind you. Manually pull out the mirror head to extend it for better visibility when towing a trailer. These mirrors can be manually folded forward or rearward. The lower portion of the mirror is convex. A convex mirror's surface is curved so you can see more from the driver's seat. The convex mirror can be adjusted manually to the driver's preferred position for better vision. 2-54