GMC 2009 Acadia - Manual (Page 249)

When a disc is playing in the CD or
DVD changer, press PROG to select
the next disc, if multiple discs are
loaded. This function is inactive,
with some radios, if the front seat
passengers are listening to the disc.
When a DVD video menu is being
displayed, press PROG to perform
the ENTER menu function.
Rear Audio
Controller (RAC)
The vehicle may have the Rear
Audio Controller (RAC). Certain
radio functions can be controlled
with RAC.
x w (Next/Previous): Press the
down or up arrows to go to the next
or to the previous radio station
stored as a favorite.
When a CD/DVD is playing, press
the down or up arrows to go to
the next or previous track or chapter.
© SEEK ¨ : Press the SEEK
arrows to go to the previous or to the
next radio station while in AM, FM, or
XM™ (if equipped). Press the SEEK
arrows to go to the previous or to the
next track or chapter while sourced
to a CD or DVD slot.
SRCE (Source): Press this button
to switch between the radio (AM,
FM), XM™ (if equipped), CD, and if
the vehicle has these features, DVD,
front auxiliary, and rear auxiliary.
> (Mute): Press this button to
silence the system. Press this button
again, or any other radio button,
to turn the sound on.
+ / − x
(Volume): Press the plus or
minus volume buttons to increase
or to decrease the volume.
Theft-Deterrent Feature
THEFTLOCK ® is designed to
discourage theft of the vehicle’s
radio by learning a portion of
the Vehicle Identification Number
(VIN). The radio does not operate if
it is stolen or moved to a different
vehicle.
Instrument Panel 3-127