Buick 1993 Century Owner's Manual page 127

To Preset Radio Stations:
The five pushbuttons at the lower right can be used to
preset up to ten radio stations (five AM and five FM).
The buttons have other uses when you are playing a
compact disc.
1. Tune the digital display to the station you want.
2. Press SET. The SET indicator will appear on the
digital screen for five seconds.
3. While the SET indicator is displayed, press one of the
five pushbuttons.
4. Repeat steps 1-3 for each of five AM and five FM
stations.
To Play a Compact Disc:
Many of the controls for the radio
also
have functions for
the compact disc player, as explained here.
Don't use mini-discs that are called singles. They won't
eject. Use only full-size compact discs.
1. Press PWR to turn the radio on.
2. Insert a disc part-way into the slot, with the label side
up. The player will pull it in. In a few seconds, the
disc should play.
If the disc comes back out and/or Err appears on the
display:
The disc may be upside down.
0
The disc may be dirty, scratched or wet.
There may be too much moisture in the air (wait about
The player may be too hot, or the road may be too
one hour and try again).
rough for the disc to play. As soon as things get back to
normal, the disc should play.
While a disc is playing, the CD indicator is displayed on
the digital screen, as is the clock.