GMC 2002 Savana Van Owner's Manual page 150

Setting the Clock for Systems with Radio
Data System
Your radio may have a button marked with an H or
HR to represent hours and an M or MIN to
represent minutes.
Press and hold the hour button until the correct hour
appears. AM or PM will appear on the display for
morning or afternoon hours. Press and hold the minute
button until the correct minute appears. The clock may
be set with the ignition on or off.
To set the clock to the time of an FM station
broadcasting Radio Data System (RDS) information,
press and hold the hour and minute buttons at the same
time for two seconds until UPDATED and the clock
symbol appears on the display. If the time is not
available from the station, NO UPDAT will appear on
the display instead.
RDS clock time is broadcast once a minute. Once you
have tuned to an RDS broadcast station, it may take a
few minutes for your clock time to update.
AM-FM Stereo
Playing the Radio
PWR (Power): Press this knob to turn the system on
and off.
VOL (Volume): Turn the knob clockwise to increase
volume. Turn it counterclockwise to decrease volume.
RCL (Recall): Pressing this knob will display the
station being played or it will display the clock. Clock
display is available with the ignition turned off.
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