2005 GMC Yukon Owner's Manual - Page 136

To extend the mirrors move the selector switch, located above the mirror control, to the middle position. The mirror control will illuminate. Press the left side of the mirror control to slide the mirror heads away from the body of the vehicle. Press the right side of the mirror control to slide the mirror heads toward the body of the vehicle. The mirrors may also include a memory function which works together with the memory seats. See Memory Seat on page 2-61 for more information. To fold or unfold the mirrors, move the selector switch, located above the mirror control, to the middle position. The mirror control will illuminate. Press the right or left side of the mirror control to fold or unfold the mirrors. You may notice the mirror glass adjust as the mirrors fold in; this is normal. The mirror glass will reposition itself once the mirrors are unfolded. If the mirrors are accidentally folded/unfolded manually, they may shake or flutter at normal driving speeds and may not stay in the unfolded position. If this happens, you will need to reset the mirrors. See "Resetting the Power Foldaway Mirrors" next. Outside Power Foldaway Mirrors If your vehicle is equipped with this feature, the controls are located on the driver's door armrest. Resetting the Power Foldaway Mirrors You will need to reset the power foldaway mirrors if the following occurs: Move the upper selector switch to the left or right to choose the mirror you want to adjust; then press the dots located on the four-way control pad to adjust the mirror. • They are accidentally manually folded/unfolded. • The mirrors will not stay in the unfolded position. • The mirrors shake and flutter at normal driving speeds. To reset the power foldaway mirrors, fold and unfold them at least three times using the mirror controls. This will reset them to their normal position. 2-48