2007 GMC Sierra 1500 Pickup Owner's Manual - Page 185

Outside West Coast-Type Mirrors If your vehicle is equipped with these mirrors, they can be adjusted so you can have a clear view of objects behind you. A. Outer Mirror Frame B. Mirror Head C. Nut Outside Power Mirrors If your vehicle is equipped with power outside mirrors, the controls are located on the driver's door armrest. The mirrors can be adjusted by turning the mirror head (B) and moving the outer mirror frame (A) backward or forward. You can also loosen the nut (C) on the top and bottom of the outer mirror frame to tilt the mirror head. Move the selector switch located above the control pad 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. The mirrors can be manually folded inward to prevent damage when going through an automatic car wash. To fold, push the mirror toward the vehicle. To return the mirror to its original position, push outward. Be sure to return both mirrors to their original unfolded position before driving. 185