GMC 1993 Safari Owner's Manual page 143

Seek Button
This chooses stations also, but it doesn't keep moving
as SCAN does. When
you push SEEK, the radio goes to the next station and stays there.
Clock
To set the clock, just:
1. Push SET. (SET will be displayed.)
2. Within 5 seconds, push and hold SCAN until the correct hour appears.
3. Press and hold SEEK until the correct minute appears.
To display the clock with the ignition off, push the upper knob. The time will
be displayed for a few seconds.
Cassette Tape Player
Your tape player is built to work best with tapes that are 30 to 45 minutes
long on each side. Tapes longer than that are so thin they may not work well
in this player.
To play a cassette tape:
Have the radio on.
Insert the tape squarely through the tape door.
The longer side with the tape visible goes in first. If you hear nothing or hear
just garbled sound, it may not be in squarely. Push STOP-EJECT to remove
the tape and start over.
Once the tape is playing, use the upper and lower knobs for volume and
balance, just as you do for radio. The arrows show which side of the tape is
playing.
To go forward to another part of the tape, push the button with an
arrow pointing toward the lighted arrow.
To go backward, push the button with an arrow pointing away from the
lighted arrow. To stop the tape, push the STOPlEJECT button lightly.
To go from one side of the tape to the other, push in the upper knob
on your radio.
To remove or stop the tape, push STOP-EJECT.
Press STOP-EJECT lightly to stop the cassette. Push STOP-EJECT again to
remove the cassette and start the radio.
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