lock CHEVROLET IMPALA 2001 8.G Repair Manual

3-10 AM-FM Stereo
Playing the Radio
PWR VOL: Press this knob to turn the system on
and off. To increase volume, turn the knob clockwise.
Turn it counterclockwise to decrease volume.
RCL: Press this knob to recall the station being played
or to display the clock. Clock display is available with
the vehicle off.
Finding a Station
AM FM: Press this button to switch between AM,
FM1 and FM2. The display shows your selection.TUNE: Turn this knob to choose radio stations.
SEEK: Press the right arrow to tune to the next higher
station and the left arrow to tune to the next lower
station and stay there. The radio will seek to stations
with a strong signal only.
SCAN: Press and hold one of the SEEK arrows for
two seconds until you hear a beep. Use SCAN to listen
to stations for a few seconds. The radio will go to a
station, stop for a few seconds and flash the station
frequency, then go on to the next station. Press one
of the SEEK arrows again to stop scanning. The radio
will scan to stations with a strong signal only.
PRESET SCAN: Use PRESET SCAN to listen to each
of your preset stations for a few seconds. Press and hold
one of the SEEK arrows for more than four seconds
until you hear two beeps. The radio will go to the first
preset station stored on your pushbuttons, except those
stations with weak reception, stop for a few seconds and
flash the station frequency, then go on to the next preset
station. PRESET SCAN will only scan the six presets
that are in the band selected. Press one of the SEEK
arrows again to stop scanning presets. The channel
number (P1 through P6) will appear momentarily just
before the frequency is displayed.

3-13 AM-FM Stereo with Cassette Tape Player
with Radio Data System (RDS) and
Automatic Tone Control (If Equipped)
Playing the Radio
PWR: Press this button to turn the system on and off.
VOL: Turn this knob clockwise to increase volume.
Turn it counterclockwise to decrease volume.
DISP: Press this button to display the clock with the
ignition off. Press this button to display an RDS station
frequency or program type when the radio is on.AUTO VOL: Your system has a feature called
Speed
-Compensated Volume (SCV). With SCV,
your audio system adjusts automatically to make up
for road and wind noise as you drive. Set the volume at
the desired level. Press AUTO VOL to adjust the SCV.
AVOL will appear on the display. Each time you press
AUTO VOL, another volume setting (LOW, MEDIUM
or HIGH) will appear on the display. NONE will appear
on the display if the radio cannot find out the vehicle
speed. Then, as you drive, SCV automatically increases
the volume, as necessary, to overcome noise at any
particular speed. The volume level should always sound
the same to you as you drive. If you don't want to use
SCV, select OFF. Each volume setting allows for more
volume compensation at faster vehicle speeds.
Finding a Station
AM FM: Press this button to switch between AM,
FM1 and FM2. The display shows your selection.
TUNE: Turn this knob to choose radio stations.
SEEK: Press the right arrow to tune to the next
higher station and the left arrow to tune to the next
lower station and stay there. The radio will seek to
stations with a strong signal only.

3-14
PUSHBUTTONS: The six numbered pushbuttons
let you return to your favorite stations. You can set
up to 18 stations (six AM, six FM1 and six FM2) by
performing the following steps:
1. Turn the radio on.
2. Press AM FM to select the band.
3. Tune in the desired station.
4. Press AUTO TONE to select the equalization that
best suits the type of station selected.
5. Press and hold one of the six numbered buttons.
The radio will produce one beep. Whenever you
press that numbered button, the station you set
will return and the AUTO TONE equalization that
you selected will also be automatically selected for
that button.
6. Repeat the steps for each pushbutton.
P SCAN: Press and hold one of the arrows for more
than two seconds. The radio will produce one beep.
Use P SCAN to listen to each of your favorite stations
stored on your pushbuttons for a few seconds. The radio
will scan through each of the stations stored on your
pushbuttons, except those stations with weak reception. The AUTO TONE setting stored for that pushbutton
will be automatically chosen. Press P SCAN or one of
the pushbuttons again to stop scanning. SCAN will be
displayed whenever the tuner is in the P SCAN mode.
The channel number (P1 through P6) will appear with
the frequency. In FM mode, this function will scan
through the current band such as FM1 or FM2.
Setting the Tone
BASS: Press and release the P
-TYPE LIST/AUDIO
knob until BASS appears on the display. Then turn the
knob clockwise to increase bass and counterclockwise
to decrease bass. The display will show the bass level.
When you use this control, the radio's AUTO TONE
setting will switch to manual. To set bass to the middle
position, select the control and press and hold the
P
-TYPE LIST/AUDIO knob. The radio will produce
one beep and set the display level to the middle position.
To set all tone and speaker controls to the middle
position, press and hold the P
-TYPE LIST/AUDIO
knob when no tone or speaker control is active. The
radio will produce one beep and display ALL with
the level display in the middle position.

3-15
TREBLE: Press and release the P-TYPE LIST/AUDIO
knob until TREB appears on the display. Turn the knob
clockwise to increase treble and counterclockwise to
decrease treble. The display will show the treble level.
When you use this control, the radio's AUTO TONE
setting will switch to manual. If a station is weak or
noisy, you may want to decrease the treble. To set treble
to the middle position, select the control and press and
hold the P
-TYPE LIST/AUDIO knob. The radio
will produce one beep and set the display level to the
middle position. To set all tone and speaker controls
to the middle position, press and hold the P
-TYPE
LIST/AUDIO knob when no tone or speaker control
is active. The radio will produce one beep and display
ALL with the level display in the middle position.
AUTO TONE: This feature allows you to choose
preset bass and treble equalization settings designed
for ROCK, NEWS, POP, JAZZ, CLASSICAL and
COUNTRY stations. TONE and the preset equalization
setting will appear on the display when you press AUTO
TONE. Each time you press it, another setting will
appear on the display. The manual setting allows tone
control to return to the BASS and TREB controls.
Use PUSHBUTTONS and AUTO TONE button to
program AUTO TONE for station presets.Adjusting the Speakers
BALANCE: Press and release the P
-TYPE
LIST/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. The middle position balances the sound
between the speakers. The display will show the speaker
balance. To set the balance to the middle position,
select the control and press and hold the P
-TYPE
LIST/AUDIO knob. The radio will produce one beep
and set the display level to the middle position. To set
all tone and speaker controls to the middle position,
press and hold the P
-TYPE LIST/AUDIO knob
when no tone or speaker control is active. The radio
will produce one beep and display ALL with the level
display in the middle position.

3-16
FADE: Press and release the P-TYPE LIST/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. The middle position balances the sound
between the speakers. The display will show the speaker
balance. To set the fade to the middle position, select the
control and press and hold the P
-TYPE LIST/AUDIO
knob. The radio will produce one beep and set the
display level to the middle position. To set all tone and
speaker controls to the middle position, press and hold
the P
-TYPE LIST/AUDIO knob when no tone or
speaker control is active. The radio will produce one
beep and display ALL with the level display in the
middle position.
Using RDS
Your audio system is equipped with a Radio Data
System (RDS). RDS is a system that sends data along
with the audio of the FM station you are currently tuned
to. You can use RDS to display program information
and to control your radio. With RDS, the radio can:

Seek only to stations with the types of programs you
want to listen to,

seek to stations with traffic announcements,
receive announcements concerning local and
national emergencies, and

receive and display messages from radio stations.
RDS is always on. RDS features are only available for
use on FM stations which broadcast RDS information.
The RDS features of your radio rely upon 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, please 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.
DISP: Press this knob to change what appears on the
display while using RDS. The display options are station
name, station frequency, PTY and the name of the
program (if available). Press and hold the display knob
to set the default display of the RDS station from the
displays available.

3-17
Accessing RDS Stations:
1. Push the SEEK TYPE button or turn the P
-TYPE
LIST/AUDIO knob to display the program type list.
2. Turn knob either clockwise or counterclockwise to
select a program type. List is alphabetical. If you
select ANY TYPE your radio will seek to the first
PTY available.
3. Push SEEK TYPE button to activate search.
TRAF: Press this button to receive traffic announcements.
If the current tuned station does not broadcast traffic
announcements, the radio will seek to a station that does.
The TRAF icon will flash on the display. When the radio
finds a station that broadcasts traffic announcements,
it will stop. If no station is found, NO TRAF will appear
on the display.
Traffic Interrupt Feature: Your radio can be
programmed to interrupt the playback of a cassette
tape, CD or FM radio by enabling the traffic interrupt
feature. Press the TRAF button once to seek to an
RDS station that supports the traffic interrupt feature
if the current tuned station does not. The TRAF icon
will flash on the display when seeking for a station that
supports traffic interrupt. When the traffic interrupt
feature is on, TRAF will appear on the display.When a traffic announcement comes on the tuned radio
station, you will hear it, even if the volume is muted or
a cassette tape or compact disc is playing. The TRAF
icon and TRAFFIC will appear on the display while
the traffic announcement plays. If the cassette tape or
compact disc player was being used, the tape or compact
disc will stay in the player and resume play at the point
where it stopped.
VOL: Turn this knob clockwise to increase volume when
RDS interrupts regular play. Turn it counterclockwise to
decrease volume.
INFO: If the current station has a message, the INFO
icon will appear on the display. These text messages are
from the RDS broadcaster to the listening public and
may be general information such as artist and song title,
call in phone numbers, etc. Press this button to see
the message. If the whole message does not appear
on the display, parts of the message will appear every
three seconds until the message is completed. To scroll
through the message at your own speed, press the INFO
button again for less than one second. A new group of
words will appear on the display. Once the completed
message has been displayed, INFO will disappear from
the display until another new message is received. The
old message can be displayed by pressing the INFO
button until a new message is received or a different
station is tuned to.

3-18
P-TYPE LIST: Turn this knob clockwise or
counterclockwise to select the Program Type (PTY) you
want to listen to. TYPE and a PTY will appear on the
display. Press the SEEK TYPE button and the radio
will seek to the first RDS broadcaster of the selected
P
-TYPE. If the radio cannot find the desired P-TYPE,
NONE will appear on the display and the radio will
return to the last station you were listening to.
SEEK TYPE: Press this button to go to a station with
the last selected PTY. TYPE and the last selected PTY
will appear on the display, if it is not already showing.
Press SEEK TYPE a second time to seek. If a station
with the selected PTY is not found, the radio will return
to the original station and display NONE.
ALERT!: This type of announcement warns of national
or local emergencies. You will not be able to turn off
alert announcements. ALERT! appears on the display
when an alert announcement plays. When an alert
announcement comes on the tuned radio station, you
will hear it, even if the volume is muted or a cassette
tape or compact disc is playing. If the cassette tape or compact disc player is playing,
play will stop for the announcement and resume when
the announcement is finished.
This function will only work during actual emergency
broadcasts, and will not work during tests of the
emergency broadcast system. This feature is not
supported by all RDS stations.
ALTERNATE FREQUENCY: This feature allows the
radio to switch automatically to a stronger station with
the same programming. AF is off by default from the
factory. Press and hold AM FM for two seconds to turn
alternate frequency on or off. AF ON or AF OFF will
appear on the display and the radio will beep once.
The radio will not switch automatically to other stations
when AF is off.

3-19
Playing a Cassette Tape
Your tape player is built to work best with tapes that are
up to 30 to 45 minutes long on each side. Tapes longer
than that are so thin they may not work well in this
player. The longer side with the tape visible should face
to the right. If the ignition is on, but the radio is off,
the tape can be inserted and will begin playing. A tape
symbol is shown on the display whenever a tape is
inserted. If you hear nothing but a garbled sound, the
tape may not be in squarely. Press EJT to remove the
tape and start over.
While the tape is playing, use the VOL, FADE, BAL,
TREB, BASS, and SEEK controls just as you do for
the radio. The display will show TAPE and an arrow
showing which side of the tape is playing.
If you want to insert a tape when the ignition is off,
first press EJT or DISP.If CHK TAPE appears on the radio display, the tape
won't play because of an error.
CHK TAPE may be displayed when the tape is tight and
the player can't turn the tape hubs. Remove the tape.
Hold the tape with the open end down and try to turn
the right hub counterclockwise with a pencil. Turn the
tape over and repeat. If the hubs do not turn easily,
your tape may be damaged and should not be used
in the player. Try a new tape to make sure your player
is working properly.
CHK TAPE may be displayed when the tape is broken.
Try a new tape.
CHK TAPE may be displayed when the tape is wrapped
around the tape head. Attempt to get the cassette out.
Try a new tape.
If any error occurs repeatedly or if an error can't be
corrected, please contact your dealer.

3-22
CD Adapter Kits
It is possible to use a portable CD player adapter kit
with your cassette tape player after activating the bypass
feature on your tape player.
To activate the bypass feature, use the following steps:
1. Turn the radio off.
2. Press and hold the TAPE AUX button for
five seconds. READY will appear on the display
for five seconds, indicating the feature is active.
3. Insert the adapter into the cassette slot. It will power
up the radio and begin playing.
This override routine will remain active until EJT
is pressed.
CAL ERR: This message is displayed when the
radio has not been calibrated properly for the vehicle.
You must return to the dealership for service.
LOCKED: This message is displayed when the
THEFTLOCK

system has locked up. You must
return to the dealership for service.
AM-FM Stereo with Compact Disc Player
with Radio Data System (RDS) and
Automatic Tone Control (Option)
Playing the Radio
PWR: Press this button to turn the system on and off.
VOL: Turn this knob clockwise to increase volume.
Turn it counterclockwise to decrease volume.
DISP: Press this button to display the clock with the
ignition off. Press this button to display an RDS station
frequency or program type when the radio is on.

3-24
P SCAN: Press and hold one of the arrows for more
than two seconds. The radio will produce one beep.
Use P SCAN to listen to each of your favorite stations
stored on your pushbuttons for a few seconds. The radio
will scan through each of the stations stored on your
pushbuttons, except those stations with weak reception.
The AUTO TONE setting stored for that pushbutton
will be automatically chosen. Press P SCAN or one of
the pushbuttons again to stop scanning. SCAN will be
displayed whenever the tuner is in the P SCAN mode.
The channel number (P1 through P6) will appear with
the frequency. In FM mode, this function will scan
through the current band such as FM1 or FM2.
Setting the Tone
BASS: Press and release the P
-TYPE LIST/AUDIO
knob until BASS appears on the display. Then turn the
knob clockwise to increase bass and counterclockwise
to decrease bass. The display will show the bass level.
When you use this control, the radio's AUTO TONE
setting will switch to manual. To set bass to the middle
position, select the control and press and hold the
P
-TYPE LIST/AUDIO knob. The radio will produce one beep and set the display
level to the middle position. To set all tone and speaker
controls to the middle position, press and hold the
P
-TYPE LIST/AUDIO knob when no tone or
speaker control is active. The radio will produce
one beep and display ALL with the level display in
the middle position.
TREBLE: Press and release the P
-TYPE LIST/AUDIO
knob until TREB appears on the display. Turn the knob
clockwise to increase treble and counterclockwise to
decrease treble. The display will show the treble level.
When you use this control, the radio's AUTO TONE
setting will switch to manual. If a station is weak or
noisy, you may want to decrease the treble. To set treble
to the middle position, select the control and press and
hold the P
-TYPE LIST/AUDIO knob. The radio
will produce one beep and set the display level to the
middle position. To set all tone and speaker controls
to the middle position, press and hold the P
-TYPE
LIST/AUDIO knob when no tone or speaker control
is active. The radio will produce one beep and display
ALL with the level display in the middle position.