GMC 2007 Savana - Manual (Page 192)

Radio Messages
CAL (Calibration): 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 the dealer for service.
LOC (Locked): This message is displayed when
the THEFTLOCK
® system has locked up. Take
the vehicle to the dealer for service.
If any error occurs repeatedly or if an error cannot
be corrected, contact your dealer.
Radio with CD
Playing the Radio
PWR (Power): Press this knob to turn the system
on and off.
VOL (Volume): Turn this knob clockwise or
counterclockwise to increase or to decrease the
volume.
RCL (Recall): Press this knob to switch the
display between the radio station frequency and
the time. When the ignition is off, press this
knob to display the time.
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