GMC 2016 Acadia User Manual page 47

46 Keys, Doors, and Windows
Vent : Press and hold the front of
the switch to vent the sunroof. Press
and hold the rear of the switch to
close the sunroof.
Express-open/Express-close :
Press and release the rear of the
switch to express-open the sunroof.
Press and release the front of the
switch to express-close the sunroof.
Manual Sunshade
The sunshades must be opened
and closed manually. To open the
sunshade, press the button on the
sunshade handle to release it and
guide it back. To close the
sunshade, pull the sunshade
forward until it latches.
Dirt and debris may collect on the
sunroof seal or in the track. This
could cause an issue with sunroof
operation or noise. It could also plug
the water drainage system.
Periodically open the sunroof and
remove any obstacles or loose
debris. Wipe the sunroof seal and
roof sealing area using a clean
cloth, mild soap, and water. Do not
remove grease from the sunroof.
If water is seen dripping into the
water drainage system, this is
normal.