Chevrolet T-Series Owner's Manual page 122

PS AS (Preset Scan/Auto Scan): Press this
button for less than two seconds to scan preset
stations. The radio goes to the first preset station,
plays for a few seconds, then goes to the next
preset station. Press this button again to stop
scanning presets.
The radio only scans preset stations with a strong
signal that are in the selected band.
Setting Preset Stations
Up to 12 stations (six FM and six AM) can be
programmed on the six numbered pushbuttons,
by performing the following steps:
1. Turn the radio on.
2. Press BND to select FM or AM.
3. Tune in the desired station.
4. Press and hold one of the six numbered
pushbuttons for two seconds or longer.
Whenever that numbered pushbutton is
pressed, the station that was set returns.
5. Repeat Steps 2-4 for each pushbutton.
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To automatically store the preset pushbuttons,
perform the following steps:
1. Turn the radio on.
2. Press BND to select FM or AM.
3. Press and hold the AS button for more
than two seconds. The radio stores, the
first six strongest stations found, onto the radio
preset pushbuttons. Whenever that numbered
pushbutton is pressed, the station that
was set returns.
Setting the Tone (Bass/Treble)
TONE: To adjust the bass, turn the control ring
behind the ON/VOL knob counterclockwise.
To adjust the treble, turn the control ring behind
the ON/VOL knob clockwise. If a station is weak or
has static, decrease the treble.
Adjusting the Speakers (Balance/Fade)
BAL (Balance): To adjust the balance between
the right and the left speakers, pull the ON/VOL
knob out. Turn the knob to move the sound to the
right or the left speakers. The middle position
balances the sound between the speakers. Push
the knob back in when not in use.