GMC 2010 Sierra - Manual (Page 36)

Universal Remote System
The Universal Home Remote System allows for garage
door openers, security systems, and home automation
devices to be programmed to work with these buttons in
the vehicle.
See Universal Home Remote System on page 3‑73.
Sunroof
Extended Cab
The sunroof switch is
located on the headliner
above the rearview mirror.
Vent: From the closed position, press and hold the rear
of the switch to vent the sunroof.
Open: From the vent position, press and hold the rear
of the switch to open the sunroof.
Close: Press and hold the front of the switch to close
the sunroof.
The sunroof also has a roller sunshade that can be
used to block the rays of the sun. To open the
sunshade, press and unlatch it, and roll it back. To
close, pull it forward and latch it into the closed position.
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