Radio Messages; Radio With Cd - GMC 2003 Sierra 1500 Pickup Owner's Manual

To adjust both tone controls and both speaker controls
to
the middle position, end out of audio by waiting
for the display to change to the time display. Then press
and hold AUDIO for more than two seconds until you
hear a beep. CEN will appear on the display.
Fade may not be available if you have a regular cab
model.
Radio Messages
CAL (Calibrated): Your audio system has been
calibrated for your vehicle from the factory. If CAL
appears on the display it means that your radio has not
been configured properly for your vehicle and must
be returned to the dealership for service.
LOC (Locked): This message is displayed when the
Theftlock@ system has locked up. Your vehicle must be
returned to the dealership for service.
Radio with CD
Base Radio Shown,
Base@
Similar
If your vehicle is equipped with the Base@ audio system,
your vehicle will have six
Base@
amplified speakers.
Radio Data System (RDS): Your audio system is
equipped with a Radio Data System (RDS). RDS
features are available for use only on FM stations that
broadcast RDS information.
0
Seek to stations broadcasting the selected type of
receive announcements concerning local and
programming,
national emergencies,
display messages from radio stations, and
0
seek to stations with traffic announcements.
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