Sun Visors; Roof; Sunroof - GMC 2016 Sierra Owner's Manual

Sun Visors

Pull the sun visor down to block
glare. Detach the sun visor from the
center mount to pivot to the side
window or, if equipped, extend
along the rod.

Roof

Sunroof

If equipped, the sunroof operates
when the ignition is in ACC/
ACCESSORY or ON/RUN, or when
Retained Accessory Power (RAP) is
active. See Retained Accessory
Power (RAP) 0 281.
Vent : From the closed position,
press the rear of the TILT switch to
vent the sunroof.
Manual-Open/Manual-Close : To
open the sunroof, press and hold
the rear of the SLIDE switch until
Keys, Doors, and Windows
the sunroof reaches the desired
position. Press and hold the front of
the SLIDE switch to close it
Express-Open/Express-Close : To
express-open the sunroof, fully
press and release the rear of the
SLIDE switch. To express-close the
sunroof, fully press and release the
front of the SLIDE 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.
Automatic Reversal System
The sunroof is equipped with an
automatic reversal system that is
only active when the sunroof is
being operated in express mode.
If an object is in the path of the
sunroof while it is express closing,
the reversal system will detect the
object and stop. In the event of
closing difficulties like frost or other
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