GMC 1997 Safari Owner's Manual page 155

Audio Systems
AM-FM Stereo
Your Delco@ audio system has been designed to operate
easily and give years of listening pleasure. You will get
the most enjoyment out of it if you acquaint yourself
with it first. Find out what your Delco system can do
and how to operate all its controls, to be sure you're
getting the most out of the advanced engineering that
went into it.
Setting the Clock for Systems without
Automatic Tone Control
Press SET. Within five seconds, press and hold the
SEEK right arrow until the correct minute appears on
the display. Press and hold the SEEK left arrow until the
correct hour appears on the display.
Setting the Clock for Systems with
Automatic Tone Control
Press and hold HR until the correct hour appears on the
display. Press and hold MIN until the correct minute
appears on the display. To display the clock with the
ignition off, press RECALL or HR/MIN and the time
will be displayed for a few seconds. There is an initial
two-second delay before the clock goes into the
time-set mode.
Playing the Radio
VOLUME: This knob turns the system on and off and
controls the volume. To increase volume and turn the
radio on, turn the knob clockwise. Turn it
counterclockwise to decrease volume.
RECALL: Display the time with the ignition off by
pressing the recall knob. When the radio is playing,
press this knob to recall the station frequency.