set clock CHEVROLET TRAIL BLAZER 2002 1.G User Guide

3-23
Radio/Cassette Tape Messages
(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.
(CHK TAPE): If CHK TAPE appears on the radio
display, the tape won't play because of one of the
following errors.

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.

The tape is broken. Try a new tape.

The tape is wrapped around the tape head. Attempt
to get the cassette out. Try a new tape.(CLEAN): If this message appears on the display, the
cassette tape player needs to be cleaned. It will still play
tapes, but you should clean it as soon as possible to
prevent damage to the tapes and player. See ªCare of
Your Cassette Tape Playerº in the Index. After you clean
the player, press and hold the EJT button for five
seconds to reset the CLEAN indicator. The radio will
display CLEANED to show the indicator was reset.
If any error occurs repeatedly or if an error can't be
corrected, please contact your dealer.

3-24 AM-FM Stereo with Compact Disc Player
with Radio Data System (RDS) and
Automatic Tone Control (If Equipped)
Playing the Radio
VOL PWR: Press this control to turn the system on and
off. Turn this control clockwise to increase volume.
Turn it counterclockwise to decrease volume.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, HIGH or OFF) will appear on the
display. The volume level should always sound the same
to you as you drive. Each volume setting allows for
more volume compensation at faster vehicle speeds.
NONE will appear on the display if the radio cannot
determine the vehicle speed. If you don't want to use
SCV, select OFF.
Finding a Station
AM FM: Press this button to switch between AM, FM1
and FM2. The display shows your selection.
TUNE DISP: Turn this control to choose radio stations.
Pressing this control will also display an RDS station
frequency or program type when the radio is on.
Pressing this control when the ignition is off will display
the clock.

3-26
Setting the Tone (Bass/Treble)
P
-TYPE LIST AUDIO: To adjust the bass, press and
release the P
-TYPE LIST AUDIO control until BASS
appears on the display. Then turn the control clockwise
to increase bass and counterclockwise to decrease bass.
The display will show the bass level.
To set the bass to the middle position, press and hold the
P
-TYPE LIST AUDIO control. 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
control 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.
To adjust the treble, press and release the P
-TYPE LIST
AUDIO control until TREB appears on the display.
Turn the control clockwise to increase treble and
counterclockwise to decrease treble. The display will
show the treble level. If a station is weak or noisy, you
may want to decrease the treble.To set treble to the middle position, press and hold
P
-TYPE LIST AUDIO control. 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
control 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.
When you use this control, the radio's AUTO TONE
setting will return to manual.
AUTO TONE: This feature allows you to choose preset
bass and treble equalization settings designed for rock,
news, pop, jazz, classical and country stations.
Each time you press the AUTO TONE button, this
feature will change to one of the preset equalization
settings previously listed.
To return the bass and treble to the manual mode, press
and release the P
-TYPE LIST AUDIO control. See
ªSetting Preset Stationsº listed previously to program
the auto tone feature.

3-27
Adjusting the Speakers (Balance/Fade)
To adjust the balance, press and release the P
-TYPE
LIST AUDIO control until BAL appears on the display.
Turn the control 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. To set the balance to the middle position, press
the P
-TYPE LIST AUDIO control briefly, then press it
again and hold it until the radio emits one beep. The
balance will be set to the middle position and the display
will show the speaker balance.
To set all tone and speaker controls to the middle
position, press and hold the P
-TYPE LIST AUDIO
control 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.
To adjust the fade, press and release the P
-TYPE LIST
AUDIO control until FADE appears on the display. Turn
the control 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. To set the fade to the middle position, press
the P
-TYPE LIST AUDIO control briefly, then press
it again and hold it until the radio emits one beep. The
fade will be set to the middle position and the display
will show the speaker balance.
To set all tone and speaker controls to the middle
position, press and hold the P
-TYPE LIST AUDIO
control 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 your 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.

3-32
Radio/Compact Disc Messages
(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.
(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.
AM-FM Stereo with Cassette Tape and
Compact Disc Player with Radio Data
System (RDS) and Automatic Tone Control
(If Equipped)
Standard Radio--Bose not shown
Playing the Radio
VOL PWR: Press this control to turn the system on and
off. Turn this control clockwise to increase volume.
Turn it counterclockwise to decrease volume.

3-33
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, HIGH or OFF) will appear on
the display. The volume level should always sound the
same to you as you drive. Each volume setting allows
for more volume compensation at faster vehicle speeds.
NONE will appear on the display if the radio cannot
determine the vehicle speed. If you don't want to use
SCV, select OFF.
If your vehicle has the Bose radio, your audio system
monitors the noise inside your vehicle. Then, automatic
volume automatically adjusts the volume of your radio
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 the automatic
volume off, press the AUTO VOL button until AVOL
OFF appears on the display.Finding a Station
AM FM: Press this button to switch between AM, FM1
and FM2. The display will show your selection.
TUNE DISP: Turn this control to choose radio stations.
Pressing this control will also display an RDS station
frequency or program type when the radio is on.
Pressing this control when the ignition is off will display
the clock.
 SEEK PSCAN
: To seek, press the right arrow to
tune to the next station and the left arrow to tune to the
previous station and stay there.
To scan your preset stations, press and hold one of the
arrows for more than two seconds. The radio will
produce one beep. Use preset 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. Press one of the arrows or
one of the pushbuttons again to stop scanning. SCAN
will be displayed whenever the tuner is in the preset
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.

3-34
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 TONE to choose the bass and treble
equalization that best suits the type of station you
are listening to.
5. Press and hold one of the six numbered pushbuttons.
The radio will produce one beep. Whenever you
press that numbered pushbutton, the station you set
will return and the bass and treble equalization that
you selected will also be automatically selected for
that pushbutton.
6. Repeat the steps for each pushbutton.Setting the Tone (Bass/Treble)
P
-TYPE LIST AUDIO: To adjust the bass, press and
release the P
-TYPE LIST AUDIO control until BASS
appears on the display. Then turn the control clockwise
to increase bass and counterclockwise to decrease bass.
The display will show the bass level.
To set the bass to the middle position, press and hold the
P
-TYPE LIST AUDIO control. 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
control 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.
To adjust the treble, press and release the P
-TYPE LIST
AUDIO control until TREB appears on the display.
Turn the control clockwise to increase treble and
counterclockwise to decrease treble. The display will
show the treble level. If a station is weak or noisy, you
may want to decrease the treble.
To set treble to the middle position, press and hold
P
-TYPE LIST AUDIO control. The radio will produce
one beep and set the display level to the middle position.

3-35
To set all tone and speaker controls to the middle
position, press and hold the P
-TYPE LIST AUDIO
control 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.
When you use this control, the radio's AUTO TONE
setting will return to manual.
AUTO TONE: This feature allows you to choose preset
bass and treble equalization settings designed for rock,
news, pop, jazz, classical and country stations.
Each time you press the AUTO TONE button, this
feature will change to one of the preset equalization
settings previously listed.
To return the bass and treble to the manual mode, press
and release the P
-TYPE LIST AUDIO control. See
ªSetting Preset Stationsº listed previously to program
the auto tone feature.
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, the cassette tape
or CD player.Press the AUTO TONE 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 setting 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 NORMAL is displayed, the
system will provide the best overall Bose performance.
The radio saves separate AUTO TONE settings for each
preset and source.
Adjusting the Speakers (Balance/Fade)
To adjust the balance, press and release the P
-TYPE
LIST AUDIO control until BAL appears on the display.
Turn the control 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. To set the balance to the middle position, press
the P
-TYPE LIST AUDIO control briefly, then press it
again and hold it until the radio emits one beep. The
balance will be set to the middle position and the display
will show the speaker balance.

3-36
To set all tone and speaker controls to the middle
position, press and hold the P
-TYPE LIST AUDIO
control 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.
To adjust the fade, press and release the P
-TYPE LIST
AUDIO control until FADE appears on the display.
Turn the control 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. To set the fade to the middle position, press
the P
-TYPE LIST AUDIO control briefly, then press
it again and hold it until the radio emits one beep. The
fade will be set to the middle position and the display
will show the speaker balance.
To set all tone and speaker controls to the middle
position, press and hold the P
-TYPE LIST AUDIO
control 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 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 on FM stations that
broadcast RDS information. The RDS features of 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, please contact the radio station.

3-41
Cassette Tape Messages
(CHK TAPE): If CHK TAPE appears on the radio
display, the tape won't play because of one of the
following errors.

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.

The tape is broken. Try a new tape.

The tape is wrapped around the tape head. Attempt
to get the cassette out. Try a new tape.(CLEAN): If this message appears on the display, the
cassette tape player needs to be cleaned. It will still play
tapes, but you should clean it as soon as possible to
prevent damage to the tapes and player. See ªCare of
Your Cassette Tape Playerº in the Index. After you clean
the player, press and hold the cassette eject button for
five seconds to reset the CLEAN indicator. The radio
display will display CLEANED to show the indicator
was reset.
If any error occurs repeatedly or if an error can't be
corrected, please contact your dealer.
Tight/Loose Tape Sensor Defeat
With the radio off and the ignition on, press and hold the
TAPE CD button to disable the tight/loose tape sensing
feature to enable play of some tape head cleaners and
portable CD adapters. The radio will display READY
and flash the cassette icon. The tight/loose tape sensing
feature will then be disabled until the next time a
cassette is ejected.