GMC Sierra Denali 2500HD 2014 Owner's Manual page 48

GMC Sierra Denali 2500HD and 3500HD (GMNA-Localizing-U.S./Canada-
7142957) - 2014 - CRC 1st Edition - 3/28/13
2-18 Keys, Doors, and Windows
Vent: From the closed position,
press the rear of the passenger side
switch (B) to vent the sunroof.
Manual-Open/Manual-Close: To
open the sunroof, press and hold
the rear of the driver side switch (A)
until the sunroof reaches the
desired position. Press and hold the
front of the driver side switch to
close it.
Express-Open/Express-Close: To
express-open the sunroof, fully
press and release the rear of the
driver side switch (A) until the
sunroof reaches the desired
position. To express-close the
sunroof, fully press and release the
front of the driver side switch. Press
the switch again to stop it.
When the sunroof is opened, an air
deflector will automatically raise.
The air deflector will retract when
the sunroof is closed.
The sunroof also has a sunshade
which can be pulled forward to block
sun rays. The sunshade must be
opened and closed manually.
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.
Black plate (18,1)
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.