2007 GMC Savana Van Owner's Manual - Page 136

To adjust for compass variance: 1. Find your current location and variance zone number on the following zone map. 3. Press the compass/temperature button on the bottom of the mirror until the new zone number appears in the display. After you stop pressing the button, the display will show a compass direction within a few seconds. 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 Manual Mirror Adjust your outside mirrors so you can see a little of the side of your vehicle, and have a clear view of objects behind you. Some mirrors can be folded in to enter narrow passageways. 2. Press and hold the compass/temperature button for six seconds until a zone number appears in the display. 136