2010 GMC Canyon Extended Cab Owner's Manual - Page 152

Sunroof The vehicle may have a sunroof. The sunroof control buttons are located on the headliner. Lift the lid from the center area to access the storage box. Q (Open/Vent): Press and hold this button to vent, and open the sunroof. Release the button when the desired position is reached. R (Close): Press and hold this button to close the sunroof. Release the button when the desired position is reached. The sunshade must be opened manually. 3-42