GMC 2011 Sierra - Manual (Page 224)

Black plate (8,1) GMC Sierra Owner Manual - 2011
6-8 Lighting
Turn the knob clockwise or
counterclockwise to brighten
or dim the instrument panel lights.
Turning the knob to the farthest
clockwise position turns on the
dome lamps.
Cargo Lamp
The cargo lamps come on by
turning the instrument panel
brightness control knob to the
farthest clockwise position.
This knob is located on the
instrument panel and also
turns on the dome lamps.
The cargo lamps can be used if
more light is needed in the cargo
area of the vehicle or in the top-box
storage units.
Dome Lamps
The dome lamps are located in the
overhead console.
They come on when any door is
opened and turn off after all the
doors are closed.
Turn the instrument panel
brightness knob located below
the dome lamp override button,
clockwise to the farthest position to
manually turn on the dome lamps.
The dome lamps remain on until the
knob is turned counterclockwise.
Dome Lamp Override
The dome lamp override button is
located next to the exterior lamps
control.
k (Dome Off): Press the button
in and the dome lamps remain
off when a door is opened. Press
the button again to return it to the
extended position so that the dome
lamps come on when a door is
opened.