GMC 2009 Sierra - Manual (Page 135)

Manual-Open/Manual-Close: To open the sunroof
press and hold the rear of the driver’s side switch until
the sunroof reaches the desired position. To close
the sunroof, press and hold the front of the driver’s side
switch until the sunroof reaches the desired position.
When the sunroof is opened, an air deflector will
automatically raise. The air deflector will retract when
the sunroof is closed.
Express-Open/Express-Close: To express-open the
sunroof, fully press and release the rear of the
driver’s side switch. The sunroof will open automatically.
To stop the sunroof partway, press the switch a
second time. To express-close the sunroof, fully press
and release the front of the driver’s side switch. The
sunroof will close automatically. To stop the sunroof
partway, press the switch a second time.
The sunroof also has a sunshade which you can pull
forward to block sun rays. The sunshade must be
opened and closed manually.
Anti-Pinch Feature: If an object is in the path of the
sunroof while it is closing, the anti-pinch feature will
detect the object and stop the sunroof from closing at
the point of the obstruction. The sunroof will then
open halfway, and the air deflector will raise. To close
the sunroof once it has re-opened, refer to the
Express-Close or Manual-Close functions described
previously. If the sunroof is in the vent position,
and there is an object in the path of the sunroof when it
closing, the anti-pinch feature will detect the object
and stop the sunroof. To close the sunroof once it has
re-opened, refer to the Manual-Close or Express-Close
functions described previously.
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