2010 GMC Canyon Extended Cab Owner's Manual - Page 148

Compass Variance The mirror is set to zone eight. If you do not live in zone eight or drive out of the area, the compass variance needs to be changed to the appropriate zone. To adjust for compass variance: 1. Find the current location and variance zone number on the following zone map. 3. Press Y b / O repeatedly until the new zone number displays. After you stop pressing the button, the display shows a compass direction within a few seconds. Outside Manual Mirrors Manually fold the mirrors inward to prevent damage when going through an automatic car wash. To fold, push the mirrors toward the vehicle. Push outward, to return the mirrors to their original position. Outside Power Mirrors Vehicles with outside power mirrors have controls on the driver door armrest. 2. Press and hold Y number displays. 3-38 b / O until Z and/or a zone