Owner's Manual

> (Mute/OnStar
®
): Press this button to silence
the system. Press this button again, or any
other radio button, to turn the sound on.
If your vehicle has OnStar
®
, press and hold this
button for more than two seconds to interact
with the OnStar
®
system. See the OnStar
®
System
on page 126 in this manual for more information.
BAND: Press this button to switch between
FM1, FM2, AM, or XM1 or XM2 (if equipped).
1–6 (Preset Pushbuttons): Press this button to
play stations that are programmed on the
radio preset pushbuttons. The radio will only seek
preset stations with a strong signal that are in
the selected band.
When a CD is playing in the six-disc CD changer,
press this button to go to the next available
CD, if multiple CDs are loaded.
+/−
x (Volume): Press the plus or minus button
to increase or to decrease the volume.
Radio Reception
You may experience frequency interference and
static during normal radio reception if items
such as cellphone chargers, vehicle convenience
accessories, and external electronic devices
are plugged into the accessory power outlet.
If there is interference or static, unplug the item
from the accessory power outlet.
AM
The range for most AM stations is greater than for
FM, especially at night. The longer range can
cause station frequencies to interfere with each
other. For better radio reception, most AM
radio stations will boost the power levels during
the day, and then reduce these levels during
the night. Static can also occur when things like
storms and power lines interfere with radio
reception. When this happens, try reducing the
treble on your radio.
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