1999 CHEVROLET EXPRESS set clock

3-25
AUTO VOL (Automatic Volume): With automatic
volume, 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 LOW, MEDIUM or HIGH. AVOL will appear on
the display. Each higher volume setting allows for more
volume compensation at faster vehicle speeds. Then as
you drive, automatic volume increases the volume as
necessary to overcome noise at any speed. The volume
level should always sound the same to you as you drive.
NONE will appear on the display if the radio cannot
determine the vehicle speed. If you don't want to use
automatic volume, select OFF.
DISP (Display): Pressing this button will display the
station being played or it will display the clock. Clock
display is available with the ignition turned off.Finding a Station
AM FM: Press this button to switch between AM, FM1
and FM2. The display will show your selection.
 TUNE
: Turn this knob to choose radio stations.
 SEEK
: Press the right or left arrow to seek to the
next or previous station and stay there. The radio will
seek to stations with a strong signal only. The sound will
mute while seeking.
 PSCAN
(Preset Scan): Press and hold one of
the arrows for more than two seconds. The radio will
produce one beep. The radio will scan to the first preset
station stored on your pushbuttons, play for a few
seconds, then go on to the next station. 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. The radio will scan to stations with a strong
signal only. The sound will mute while scanning.

3-26
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)
AUDIO: Press and release the AUDIO knob until
BASS or TREB appears on the display. Turn the knob
clockwise or counterclockwise to increase or decrease.
The display will show the bass or treble level. If a
station is weak or noisy, you may want to decrease
the treble.
To adjust the bass and treble to the middle position, push
and hold the AUDIO knob. The radio will produce one
beep and adjust the display level to the middle position.
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.
AUTO TONE: This feature allows you to choose
bass and treble equalization settings designed for
country/western, jazz, talk, pop, rock and
classical stations.
Each time you press the AUTO TONE button, this
feature will switch to one of these program types.

3-27
To return the bass and treble to the manual mode,
press and release the AUDIO knob.
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 TONE button to select your choice.
TALK: This setting makes spoken words sound very
clear. When listening to non
-musical material such as
news, talk shows, sports broadcasts and books on tape.
DRIVER: This setting gives the driver the best
sound quality.
NORMAL: This setting enhances the stereo effects.
SPATIAL: This setting makes the listening space
seem larger.
The radio saves separate AUTO TONE settings for each
preset and source.Adjusting the Speakers (Balance/Fade)
AUDIO: To adjust the balance to 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 to 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 the radio produces 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.

3-29
DISP (Display): Press this knob to change what appears
on the display while using RDS. Pressing this knob will
also display an RDS station frequency or program type
when the radio is on. The display options are station
name, station frequency, PTY and the name of the
program (if available). Pressing and holding this knob
will activate the RDS default display.
Finding a PTY Preset Station
P
-TYPE LIST (Program Type): 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 TYPE button and
the radio will seek to the first RDS broadcaster of the
selected program type. If the radio cannot find the
desired program type, NONE will appear on the display
and the radio will return to the last station you were
listening to.
AM FM (Alternate Frequency): 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 thedisplay. The radio will not switch to other stations. When
you turn the ignition off and then on again, the alternate
frequency feature will automatically be turned on.
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.
RDS Messages
Alert: 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 current 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.

3-33
Cassette Tape Messages
CHK TAPE (Check 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.
If any error occurs repeatedly or if an error can't be
corrected, contact your dealer.Playing a Compact Disc
Insert a disc partway into the slot, label side up. The
player will pull it in and the disc should begin playing.
The display will show the CD symbol. If you want to
insert a compact disc with the ignition off, first press
DISP or EJT.
If an error appears on the display, see ªCompact Disc
Messagesº later in this section.
1 PREV (Previous): Press this pushbutton to go to the
previous track if the current selection has been playing
for less than eight seconds. If this pushbutton is pressed
and the current selection has been playing for more than
eight seconds, it will go to the beginning of the current
selection. TRACK and the track number will appear on
the display. If you hold this pushbutton or press it more
than once, the player will continue moving back through
the disc. The sound will mute while seeking.
2 NEXT: Press this pushbutton to go to the next
track. TRACK and the track number will appear on the
display. If you hold this pushbutton or press it more than
once, the player will continue moving forward through
the disc. The sound will mute while seeking.

3-36
AUTO VOL (Automatic Volume): 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 or MAX. Each higher choice allows
for more volume compensation at faster vehicle speeds.
Then, as you drive, automatic volume increases the
volume, as necessary, to overcome noise at any 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.
RCL (Recall): Push this knob to display the station
being played or to display the clock. Pushing this knob
with the ignition off will display the clockFinding a Station
AM FM: Press this button to switch between AM, FM1
and FM2. The display shows your selection.
TUNE: Turn this knob to select radio stations.


SEEK : Press the right or left arrow to go to the
next or previous station and stay there. The sound will
mute while seeking.


SCAN : Press and hold either SCAN arrow for
two seconds until SC appears on the display and you
hear a beep. The radio will go to a station, play for a few
seconds, then go on to the next station. Press either
SCAN arrow again to stop scanning. If you press SCAN
for more than four seconds, the radio will change to
preset scan mode. The sound will mute while scanning.
To scan preset stations, press and hold either SCAN
arrow for more than four seconds, PRESET SCAN
will appear on the display. You will hear a double beep.
The radio will go to a preset station stored on your
pushbuttons, play for a few seconds, then go on to
the next preset station. Press either SCAN arrow
again to stop scanning presets. The sound will mute
while scanning.

6-35
Sealed Beam Headlamp
1. Remove the four screws from the headlamp retainer.
Pull the retainer out and set it aside.
2. Unplug the lamp assembly from the connector.
3. Remove the old headlamp
4. Install a new headlamp into the assembly.
5. Plug the assembly back into the connector.
6. Reassemble the headlamp assembly with the retainer.Composite Headlamps
1. Open the hood.
2. Locate the rear side of each of the headlamps.
3. Without removing the headlamp assembly itself,
remove the bulb socket from the back of the
headlamp on the driver's side. Turn the bulb
counterclockwise one quarter turn to remove it from
the socket. On the passenger's side, turn the bulb
clockwise one quarter turn. Do not touch the glass
part of the bulb.