Buick 1993 Century Owner's Manual page 126

RCL
(Recall): Press to alternate the display between the
time and station frequency. When the ignition is off,
press to display the time.
BASS:
Press this button up or down to increase or
decrease the bass level. Press the center of the button for
the hctory preset level.
TREB (Treble): Press this button up or down to increase
or decrease the treble level. Press the center of the button
for the factory preset level. If a station is weak or noisy,
reduce the treble.
To
Set
the Clock:
1 . With the radio on or off, press SET. The
SET
indicator will appear on the digital display for five
seconds.
2. Within those five seconds, press and hold SCAN until
the correct hour appears on the display.
3. Before another five seconds pass, press and
hold
4SEEK or SEEK, until the correct minute appears
on the display.
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