GMC 2004 Sierra - Manual (Page 292)

Audio Steering Wheel Controls
You can control certain radio functions using the buttons
on your steering wheel.
g
(OnStar/Voice Recognition): If your vehicle has
OnStar ® , you can press this button to interact with
the OnStar ® system. See the OnStar ® manual provided
with your vehicle for more information.
If your vehicle does not have OnStar ® , pressing this
button will mute the audio system.
PROG (Program): Press this button to play a station
you have programmed on the radio preset pushbuttons
on the selected band.
If a cassette tape is playing, press this button to play
the other side of the tape.
If a CD is playing in the CD changer, press this button
to go to the next available CD.
Q
SOURCE
R
: Press this button to select FM1,
FM2, AM, or XM1 or XM2, (48 contiguous US states, if
equipped), or a cassette tape or CD. The cassette
or CD must be loaded to play. Available loaded sources
are shown on the display as a tape or a CD symbol.
Q
SEEK
R
: Press the up or the down arrow to go to
the next or to the previous radio station and stay
there.
If a cassette tape or CD is playing, the player will
advance with the up arrow and reverse with the down
arrow.
Q
VOL
R
(Volume): Press the up or the down arrow
to increase or to decrease volume.
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