Radio With Cd - GMC 2007 Sierra 1500 Pickup Owner's Manual

Radio Messages
CAL (Calibrated): The audio system has been
calibrated for your vehicle from the factory. If CAL
appears on the display it means that the radio
has not been configured properly for your vehicle
and must be returned to your dealer for service.
LOC (Locked): This message is displayed when
®
the THEFTLOCK system has locked up. Take
the vehicle to your dealer for service.
If any error occurs repeatedly or if an error cannot
be corrected, contact your dealer.
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Radio with CD

Base Radio Shown, Bose
If your vehicle has the Bose
vehicle will have six Bose
®
Similar
®
audio system, your
®
amplified speakers.