2002 CHEVROLET TRAIL BLAZER display

3-43
TUNE DISP: Press this control to see how long the
current track has been playing. ET and the elapsed time
will appear on the display. To change what is normally
shown on the display (track or elapsed time), press the
control until you see the display you want, then hold
the control for two seconds. The radio will produce
one beep.
AM FM: Press this button to play the radio when
a disc is in the player. The disc will stop but remain in
the player.
CD AUX: With a CD in the player and the radio
playing, press this button to play a CD. Press AM FM
to return to the radio when a CD is playing. The inactive
CD will remain safely inside the radio for
future listening.
EJT: Press this button to remove the disc. The
radio will play. Eject may be activated with either the
ignition or radio off. CDs may be loaded with the radio
and ignition off if this button is pressed first.Compact Disc Messages
(Err): If you're driving on a very rough road or if it's
very hot, the disc may not play and Err (error) may
appear on the display. When the road becomes smooth
or the temperature returns to normal, the disc should
play. If the disc comes out, it could be one of
the following:

The disc is upside down.

It is dirty, scratched or wet.

It is very humid. (If so, wait about an hour
and try again.)
If any error occurs repeatedly or if an error can't be
corrected, please contact your dealer.
(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.

3-44 AM-FM Stereo with 6-Disc Compact
Disc Player with Programmable
Equalization and Radio Data
System (RDS) (If Equipped)
Standard radio--Bose
not shownPlaying the Radio
VOLUME PWR: Press this control to turn the system
on and off. To increase volume, turn the control
clockwise. Turn it counterclockwise to decrease volume.
AUTO VOL: Your system has a feature called
automatic volume. With this feature, your audio system
adjusts automatically to make up for road and wind
noise as you drive. Set the volume at the desired level.
Press this button to select MIN, MED, MAX or OFF.
Each choice allows for more volume compensation at
faster vehicle speeds. Then, as you drive, automatic
volume 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 automatic volume,
select OFF.
If your vehicle has the Bose radio, your audio system
monitors the noise inside your vehicle. Then,
automatically adjusts the volume so that it always
sounds the same to you. To use automatic volume, press
the AUTO VOL button until AVOL ON appears on the
display. To turn automatic volume off, press the AUTO
VOL button until AVOL OFF appears on the display.

3-45
Finding a Station
AM FM: Press this button to switch between AM, FM1
and FM2. The display shows your selection.
TUNE RCL P
-TYPE: Turn this control to select
radio stations.


SEEK SCAN: To seek, press the right or left arrow
briefly to go to the next or previous station and stay
there. The sound will mute while seeking.
To scan, press and hold either SEEK SCAN arrow for
two seconds until SC appears on the display and 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,
then go on to the next station. Press either SEEK SCAN
arrow again to stop scanning. If you press SEEK SCAN
for more than four seconds, the radio will change to
preset scan mode. The sound will mute while scanning.
To scan your preset pushbuttons, press and hold either
SEEK SCAN arrow for more than four seconds,
PRESET SCAN will appear on the display. You will hear
a double beep and the P will blink with the preset
number. Use PRESET SCAN to listen to each of your
preset stations for a few seconds. The radio will go to a
preset station stored on your pushbuttons, stop for a few
seconds, then go on to the next preset station. Press either
SEEK SCAN arrow again to stop scanning presets.Setting Preset Stations
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 EQ to select the equalization that best
suits the type of station selected.
5. Press and hold one of the six numbered pushbuttons
until you hear a beep. Whenever you press that
numbered pushbutton, the station you set will return
and the equalization that you selected will also be
automatically selected for that pushbutton.
6. Repeat the steps for each pushbutton.

3-46
Setting the Tone (Bass/Treble)
AUDIO: To set the bass, press the AUDIO control until
BASS appears on the display. Turn the control to
increase or decrease bass. When you use this control, the
radio's tone setting will switch to custom.
To set the bass to the middle position, select BASS and
press and hold the AUDIO control. The radio will
produce one beep and set the display level to zero. To
set all tone and speaker controls to the middle position,
press and hold the AUDIO control when no tone or
speaker control is active. The radio will produce one
beep and CENTERED will appear on the display.
To set the midrange, press the AUDIO control until MID
appears on the display. Turn the control to increase or
decrease midrange. When you use this control, the
radio's tone setting will switch to custom.
To set the midrange to the middle position, select MID
and press and hold the AUDIO control. The radio will
produce one beep and set the display level to zero.
To set all tone and speaker controls to the middle
position, press and hold the AUDIO control when no
tone or speaker control is active. The radio will produce
one beep and CENTERED will appear on the display.To set the treble, press the AUDIO control until TREB
appears on the display. Turn the control to increase or
decrease treble. When you use this control, the radio's
tone setting will switch to custom. If a station is weak or
noisy, you may want to decrease the treble.
To set treble to the middle position, select TREB and
press and hold the AUDIO control. The radio will
produce one beep and set the display level to zero.
To set all tone and speaker controls to the middle
position, press and hold the AUDIO control when no
tone or speaker control is active. The radio will produce
one beep and CENTERED will appear on the display.
AUTO EQ: This feature allows you to choose preset
bass, midrange and treble equalization settings designed
for country, jazz, talk, pop, rock and classical stations.
The setting last chosen will appear on the display when
you first press AUTO EQ. Each time you press this
button, another setting will appear on the display and
AUTO EQ will switch to one of the preset settings
previously listed.
To return to the manual mode (CUSTOM), press the
AUTO EQ button until CUSTOM appears on the
display. Then you will be able to manually adjust the
bass, midrange and treble using the AUDIO button. To
find out how to do this, see Setting the Tone following.

3-47
If your vehicle has the Bose radio, your audio system
allows you to choose from four different equalization
settings: talk, driver, normal and spatial. These settings
can be used while listening to the radio or the CD player.
Press the AUTO EQ button to scroll through your
choices. Select TALK when listening to non
-musical
material such as news, talk shows, sports broadcasts and
books on tape. This settings makes spoken words sound
very clear. Select DRIVER to give the driver the best
possible sound qualities. Select NORMAL to enhance
the stereo effect. Select SPATIAL to make the listening
space seem larger. When AUTO EQ NORMAL is
displayed, the system will provide the best overall Bose
performance. The radio saves separate AUTO EQ
settings for each preset and source.Adjusting the Speakers
AUDIO (Balance/Fade): The AUDIO control
adjusts balance and fade. To adjust balance, press the
AUDIO control until BAL appears on the display.
Turn the control to adjust the sound to the left or right
speakers. The middle position balances the sound
between the speakers.
To adjust fade, press and hold the AUDIO control until
FAD appears on the display. Turn the control to adjust
the sound to the front or rear speakers. The middle
position balances the sound between the speakers.
To set the balance and fade to the middle position, select
balance or fade and press and hold the AUDIO control.
The radio will beep once and will set the display level to
the middle position.
To set all tone and speaker controls to the middle
position, press and hold the AUDIO control when
tone or speaker controls are not active. The radio
will produce one beep and CENTERED will appear
on the display.

3-48
Using RDS
Your audio system is equipped with a Radio Data
System (RDS). RDS mode gives you many useful new
features. With RDS, the radio can do the following:

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 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.P-TYPE: This button is used to turn on and off
Program Type (PTY) selections. PTY and the light next
to the button will turn on. The last selected PTY will
appear on the display for five seconds.
Turn the TUNE RCL P
-TYPE control to select the PTY
you want to listen to. Press the SEEK SCAN arrows to
find radio stations for the PTY you want to listen to. The
last PTY selected will be used for seek or scan modes.
If a station with the selected PTY is not found, NONE
FOUND will appear on the display. If both P
-TYPE and
TRAF are on, the radio will search for stations with
traffic announcements and the selected PTY.
To use the P
-TYPE interrupt feature, press and hold the
P
-TYPE button until you hear a beep on the PTY you
want to interrupt on. When you are listening to a compact
disc, the last selected RDS FM station will interrupt play
if that selected program type format is broadcast.
AM FM: The AM FM button operates the alternate
frequency feature. Alternate frequency allows the radio
to switch to a stronger station with the same program
type. Press and hold AM FM for two seconds to turn
alternate frequency on. AF ON will appear on the
display. The radio may switch to stronger stations.
Press and hold AM FM again for two seconds to turn
alternate frequency off. AF OFF will appear on the
display. The radio will not switch to other stations.

3-49
Setting PTY Preset Stations
The six numbered pushbuttons let you return to your
favorite Program Types (PTYs). These buttons have
factory PTY presets. You can set up to 12 PTYs
(six FM1 and six FM2) by performing the
following steps:
1. Press AM FM to select FM1 or FM2.
2. Press P
-TYPE, if it is not already on.
3. Turn the TUNE RCL P
-TYPE control to
select a PTY.
4. Press and hold one of the six numbered pushbuttons
until you hear a beep. Whenever you press that
numbered pushbutton, the PTY you set will return.
5. Repeat the steps for each pushbutton.
Radio Announcements
(Alert): 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
compact disc is playing. If the compact disc player is
playing, play will stop for the announcement and resume
when the announcement is finished.INFO: If the current station has a message, INFO will
appear on the display. 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 see the parts
of the message faster than every three seconds, press this
button again. A new group of words will appear on the
display. Once the complete message has been displayed,
INFO will disappear from the display until another new
message is received.
TRAF: Press this button to receive traffic
announcements. The traffic announcement brackets will
appear on the display. TRAF will appear on the display
if the tuned station broadcasts traffic announcements.
If the current tuned station does not broadcast traffic
announcements, the radio will seek to a station that
does. When the radio finds a station that broadcasts
traffic announcements, it will stop. If no station is found,
NONE FOUND will appear on the display.
When a traffic announcement comes on the tuned radio
station or a related network station, you will hear it,
even if the volume is muted or a compact disc is
playing. If the compact disc player was being used, the
compact disc will stay in the player and resume play at
the point where it stopped.

3-50
Playing a Compact Disc
LOAD CD
: Press this button to load CDs into the
compact disc player. This compact disc player will
accommodate up to six discs.
To insert one disc do the following:
1. Turn the ignition on.
2. Press and release the LOAD CD button.
3. Wait for the light, located to the right of the slot, to
turn green.
4. Load a disc. Insert a disc partway into the slot, label
side up. The player will pull the disc in.
When the disc is inserted, the CD symbol will be
displayed. If you select an EQ setting for your disc,
it will be activated each time you play a disc.
If the radio is on or off, the disc will begin to
play automatically.
To insert multiple discs do the following:
1. Turn the ignition on.
2. Press and hold the LOAD CD button for two seconds.
You will then hear a beep and the light, located to the
right of the slot, will begin to flash.3. Once the light stops flashing and turns green, load a
disc. Insert a disc partway into the slot, label side up.
The player will pull the disc in.
Once the disc is loaded, the light will begin flashing
again. Once the light stops flashing and turns green
you can then load another disc. The disc player takes
up to six discs. Do not try to load more than six.
When a disc is inserted, the CD symbol will be
displayed. If more than one disc has been loaded, a
number for each disc will be displayed. If you select
an EQ setting for your disc, it will be activated each
time you play a disc.
If the radio is on or off, the last disc loaded will
begin to play automatically.
4. To load more than one disc but less than six,
complete Steps 1, 2 and 3. When you have finished
loading discs, with the radio on or off, press the
LOAD CD button to cancel the loading function.
The radio will begin to play the last CD loaded.
As each new track starts to play, the track number will
appear on the display.