Chevrolet 2002 Impala Owner's Manual page 182

Adjusting the Speakers (Balance/Fade)
AUDIO: To adjust the balance between the right
and left speakers, push and release the AUDIO knob
until BAL appears on the display. Turn the knob
clockwise to move the sound to the right speakers and
counterclockwise to move the sound to the left speakers.
To adjust the fade between the front and rear speakers,
push and release the AUDIO knob until FADE appears
on the display. Turn the knob clockwise to move the
sound to the front speakers and counterclockwise to
move the sound to the rear speakers.
To adjust the balance and fade to the middle position,
push the AUDIO knob, then push it again and hold it
until you hear one beep. The balance and fade will be
adjusted to the middle position and the display will
show the speaker balance.
To adjust all tone and speaker controls to the middle
position, push and hold the AUDIO knob when no tone
or speaker control is displayed. The radio will produce
one beep and display ALL with the level display in the
middle position.
3-10
Using RDS Mode
Your audio system is equipped with a Radio Data System
(RDS). RDS is a system that receives data along with
the audio of the FM station you are currently tuned to.
RDS displays program information and can control your
radio. With RDS, the radio can do the following:
D
Seek only to stations with the types of programs
you want to listen to,
D
seek to stations with traffic announcements,
D
receive announcements concerning local and
national emergencies, and
D
receive and display messages from radio stations.
RDS features are only available on FM stations that
broadcast RDS information. The RDS features on your
radio rely on receiving specific RDS information from
these stations. These features will only work when the
RDS information is available. In rare cases, a radio
station may broadcast incorrect information that will
cause the radio features to work improperly. If this
happens, contact the radio station.
When you are tuned to an RDS station, the station
name will appear on the display, instead of the
frequency. Most RDS stations provide their station
name, the time of day and a Program Type (PTY) for
their current programming. Some stations also provide
the name of the current program.