GMC 2012 Sierra - Manual (Page 208)

Black plate (8,1) GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
6-8 Lighting
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.
Reading Lamps
For vehicles with reading lamps,
they are located on the overhead
console.
To turn on the reading lamps, press
the button located next to each
lamp. To turn them off, press the
button again.
The vehicle may also have reading
lamps in other locations. To turn the
lamps on or off, press the button
located next to the lamp.
If the vehicle has a DVD Rear Seat
Entertainment (RSE) system, press
the lamp lenses to turn the lamps on
or off.
The lamps are fixed and cannot be
adjusted.