Hummer 2007 H2 Owner's Manual page 169

Express-Open/Close Sunroof
The sunroof has a feature which allows the
sunroof panel to be opened or closed without
continuously pressing the switch. The
express-open can be stopped at any time by
pushing the front of the switch a second time.
The sunroof has four positions:
•
Comfort open stop: To open the sunroof and
sunshade, press the rear of the switch quickly
and release. The glass panel will open to
an interim position that reduces wind noise.
For information on using the sunshade,
see "Sunshade Operation" later.
•
Full open stop: To open the sunroof further,
press the rear of the switch quickly once more.
•
Express close: To close the sunroof, press the
front of the switch quickly and release.
•
Vent: The vent position allows the rear of the
sunroof to be opened and tilted upward. With
the sunroof in the fully closed position, press
and hold the front of the switch until the sunroof
reaches the desired vent position or until it
stops moving. To close the sunroof from the
vent position, press and hold the rear of the
switch until the sunroof is fully closed.
Do not leave the sunroof open for long periods of
time as debris may collect in the tracks.
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