Hummer 2009 H3 Owner's Manual page 117

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
obstruction. The sunroof will then
open halfway, and the air deflector
will raise.
Sunshade Operation
The sunshade automatically opens
with the sunroof. Manually pull it
shut after the sunroof is closed.
To adjust the sunshade, push it
backward or pull it forward to the
desired position. The sunshade
cannot be adjusted further than the
current closed position of the sunroof.
Do not leave the sunroof open for
long periods of time. Excessive
debris may collect in the tracks and
possibly damage the sunroof
operation, or plug the water draining
system.
Features and Controls 2-51