If your vehicle has this feature, some audio controls can be adjusted at the steering wheel. They include the following:

(OnStar®/Mute): Press this button to interact with the OnStar system. See the OnStar section in this manual for more information.

PROG (Program): Press this button to play the stations that are programmed on the radio preset pushbuttons. The radio will go to the first preset station, play for a few seconds, then go to the next preset station. Press this button again to stop scanning. The radio will only scan preset stations with a strong signal that are in the selected band. When a cassette tape is playing, press this button to play the other side of the tape. When a CD is playing in the CD changer, press this button to go to the next available CD, if multiple CDs are loaded.

SOURCE : Press this button to switch between FM1, FM2, AM, or XM1, or XM2 (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.

SEEK : Press the up or the down arrow to go to the next or to the previous radio station and stay there. The radio will only seek stations with a strong signal that are in the selected band. When a cassette tape or CD is playing, press the up or the down arrow to fast forward or reverse.

VOL (Volume): Press the up or the down arrow to increase or to decrease the volume.