2004 CHEVROLET SILVERADO service

{CAUTION:
Your brake system may not be working
properly if the SERVICE BRAKE BOOSTER
message is displayed.
If the brake system warning light is also
on, you should have the vehicle towed for
service. See “Brake System Warning Light” in
the Index.
If the brake system warning light isn’t on, you
still have brakes, but the supplemental brake
assist system may not operate properly. In the
event of a vacuum loss, you may not have
vacuum power assist for braking. The brake
pedal will be harder to push and it will take
longer to stop. If you continue to drive with
this message displayed it can lead to a
crash. Have the brake system serviced as
soon as possible.
SERVICE 4 WHEEL STEER
If a problem occurs with the 4-wheel steer system, this
message will appear on the DIC. If this message
appears, stop as soon as possible, and turn off the
vehicle. Restart the vehicle and check for the message
on the DIC display. If the message is still displayed,
or appears again when you being driving, the four-wheel
steer system needs service.
SERVICE 4WD
If a problem occurs with the four-wheel drive system,
this message will appear on the DIC. If this message
appears, stop as soon as possible and turn off the
vehicle. Restart the vehicle and check for the message
on the DIC display. If the message is still displayed,
or appears again when you begin driving, the four wheel
drive system needs service.
SERVICE RIDE CONTROL
If a problem occurs with the suspension system, this
message will appear on the DIC. If this message
appears, stop and turn off the vehicle. Restart the
vehicle and check for the message on the DIC display.
If the message is still displayed, or appears again
when you begin driving, the air suspension system
needs service.
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To adjust both tone controls and both speaker controls
to the middle position, rst end out of audio mode
by pressing another button, causing the radio to perform
that function or by waiting ve seconds for the display
to return to time of day. Then press and hold AUDIO for
more than two seconds until you hear a beep. CEN
will appear on the display.
Adjusting the Speakers (Balance/Fade)
AUDIO:To adjust the balance between the right
and the left speakers, press and release AUDIO until
BAL appears on the display. Then press and hold the up
or the down arrow to move the sound toward the right
or the left speakers.
To adjust the fade between the front and the rear
speakers, press and release AUDIO until FAD appears
on the display. Then press and hold the up or the
down arrow to move the sound toward the front or the
rear speakers.
To adjust balance or fade to the middle position, select
BAL or FAD. Then press and hold AUDIO for more
than two seconds until you hear a beep. L and a zero
or F and a zero will appear on the display.To adjust both tone controls and both speaker controls
to the middle position, rst end out of audio mode
by pressing another button, causing the radio to perform
that function or by waiting ve seconds for the display
to return to time of day. Then press and hold AUDIO for
more than two seconds until you hear a beep. CEN
will appear on the display.
Fade may not be available if the vehicle is a regular
cab model.Radio Messages
CAL (Calibrated):The audio system has been
calibrated for your vehicle from the factory. If CAL
appears on the display it means that the radio has not
been congured properly for your vehicle and must
be returned to the dealer for service.
LOC (Locked):This message is displayed when the
THEFTLOCK
®system has locked up. Take the vehicle
to the dealer for service.
If any error occurs repeatedly or if an error cannot be
corrected, contact your dealer.
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Radio with CD
If your vehicle has the Bose®audio system, your
vehicle will have six Bose®amplied speakers.
Radio Data System (RDS)
The audio system has a Radio Data System (RDS).
RDS features are available for use only on FM stations
that broadcast RDS information.
With RDS, the radio can do the following:
Seek to stations broadcasting the selected type
of programming
Receive announcements concerning local and
national emergencies
Display messages from radio stations
Seek to stations with traffic announcements
This system relies upon receiving specic information
from these stations and will only work when the
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.
While the radio is tuned to an RDS station, the station
name or call letters will appear on the display instead of
the frequency. RDS stations may also provide the time of
day, a program type (PTY) for current programming, and
the name of the program being broadcast.
XM™ Satellite Radio Service
XM™ is a satellite radio service that is based in the
48 contiguous United States. XM™ offers 100 coast to
coast channels including music, news, sports, talk,
and children’s programming. XM™ provides digital
quality audio and text information that includes song title
and artist name. A service fee is required in order to
receive the XM™ service. For more information,
contact XM™ at www.xmradio.com or call
1-800-852-XMXM (9696). Base Radio Shown, Bose
®Similar
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3. Once the desired PTY is displayed, press either
SCAN arrow, and the radio will begin scanning
the stations in the PTY.
4. Press either SCAN arrow to stop scanning.
If both PTY and TRAF are on, the radio will scan for
stations with the selected PTY and traffic
announcements.
BAND (Alternate Frequency):Alternate frequency
allows the radio to switch to a stronger station with the
same program type. To turn alternate frequency on,
press and hold BAND for two seconds. AF ON will
appear on the display. The radio may switch to stations
with a stronger frequency.
To turn alternate frequency off, press and hold BAND
again for two seconds. AF OFF will appear on the
display. The radio will not switch to other stations.
This function does not apply for XM™ Satellite
Radio Service.
Setting Preset PTYs (RDS Only)
Up to 12 PTYs (six FM1 and six FM2), can be
programmed on the six numbered pushbuttons, by
performing the following steps:
1. Press BAND to select FM1 or FM2.
2. Turn the P-TYPE knob to activate program
type select mode. TYPE and a PTY will appear
on the display.3. Turn the P-TYPE knob to select a PTY.
4. Press and hold one of the six numbered
pushbuttons until you hear a beep. Whenever that
numbered pushbutton is pressed, the PTY that
was set will return.
5. Repeat the steps for each pushbutton.
RDS Messages
ALERT!:Alert warns of local or national emergencies.
When an alert announcement comes on the current
radio station, ALERT! will appear on the display. You will
hear the announcement, even if the volume is low or
a CD is playing. If a CD is playing, play will stop during
the announcement. Alert announcements cannot be
turned off.
ALERT! will not be affected by tests of the emergency
broadcast system. This feature is not supported by
all RDS stations.
INFO (Information):If the current station has a
message, the information symbol will appear on the
display. Press this button to see the message. The
message may display the artist, song title, call in phone
numbers, etc.
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If the entire message is not displayed, parts of the
message will appear every three seconds. To scroll
through the message, press and release the INFO
button. A new group of words will appear on the display
after every press of the button. Once the complete
message has been displayed, the information symbol
will disappear from the display until another new
message is received. The last message can be
displayed by pressing the INFO button. You can view
the last message until a new message is received
or a different station is tuned to.
When a message is not available from a station,
NO INFO will appear on the display.
TRAF (Traffic):If TRAF appears on the display, the
tuned station broadcasts traffic announcements
and when a traffic announcement comes on the tuned
radio station you will hear it.
If the station does not broadcast traffic announcements,
press the TRAF button and the radio will seek to a
station that does. When a station that broadcasts traffic
announcements is found, the radio will stop seeking
and TRAF will appear on the display. If no station
is found that broadcasts traffic announcements, NO
TRAFFIC will appear on the display.If TRAF is on the display, press the TRAF button to turn
off the traffic announcements.
The radio will play the traffic announcement even if the
volume is low. The radio will interrupt the play of a
CD if the last tuned station broadcasts traffic
announcements.
This function does not apply to XM™ Satellite
Radio Service.
Radio Messages
CAL ERR (Calibration Error):The audio system has
been calibrated for your vehicle from the factory. If
CAL ERR appears on the display, it means that the radio
has not been congured properly for your vehicle and
must be returned to the dealer for service.
LOCKED:This message is displayed when the
THEFTLOCK
®system has locked up. Take the vehicle
to the dealer for service.
If any error occurs repeatedly or if an error cannot be
corrected, contact your dealer. If the radio displays
an error message, write it down and provide it to your
dealer when reporting the problem.
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XM™ Radio Messages
Radio Display
MessageCondition Action Required
XL (Explicit Language
Channels)XL on the radio display,
after the channel name,
indicates content with
explicit language.These channels, or any others, can be blocked at a
customer’s request, by calling 1-800-852-XMXM (9696).
Updating Updating
encryption codeThe encryption code in the receiver is being updated, and
no action is required. This process should take no longer
than 30 seconds.
No Signal Loss of signal The system is functioning correctly, but the vehicle is in a
location that is blocking the XM signal. When you move into
an open area, the signal should return.
Loading XM Acquiring channel audio
(after 4 second delay)The audio system is acquiring and processing audio and
text data. No action is needed. This message should
disappear shortly.
CH Off Air Channel not in service This channel is not currently in service. Tune to
another channel.
CH Unavail Channel no
longer availableThis previously assigned channel is no longer assigned.
Tune to another station. If this station was one of the
presets, choose another station for that preset button.
No Info Artist Name/Feature
not availableNo artist information is available at this time on this channel.
The system is working properly.
No Info Song/Program Title
not availableNo song title information is available at this time on this
channel. The system is working properly.
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XM™ Radio Messages (cont’d)
Radio Display
MessageCondition Action Required
No Info Category Name
not availableNo category information is available at this time on this
channel. The system is working properly.
No Info No Text/Informational
message availableNo text or informational messages are available at this time
on this channel. The system is working properly.
Not Found No channel available for
the chosen categoryThere are no channels available for the selected category.
The system is working properly.
XM Locked Theft lock active The XM receiver in the vehicle may have previously been
in another vehicle. For security purposes, XM receivers
cannot be swapped between vehicles. If this message is
received after having your vehicle serviced, check with the
servicing facility.
Radio ID Radio ID label
(channel 0)If tuned to channel 0, this message will alternate with the
XM Radio 8 digit radio ID label. This label is needed to
activate the service.
Unknown Radio ID not known
(should only be if
hardware failure)If this message is received when tuned to channel 0, there
may be a receiver fault. Consult with your dealer.
Chk XMRcvr Hardware failure If this message does not clear within a short period of time,
your receiver may have a fault. Consult with your dealer.
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With RDS, the radio can do the following:
Seek to stations broadcasting the selected type of
programming
Receive announcements concerning local and
national emergencies
Display messages from radio stations
Seek to stations with traffic announcements
This system relies upon receiving specic information
from these stations and will only work when the
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.
While the radio is tuned to an RDS station, the station
name or call letters will appear on the display instead
of the frequency. RDS stations may also provide
the time of day, a program type (PTY) for current
programming, and the name of the program
being broadcast.
XM™ Satellite Radio Service
XM™ is a satellite radio service that is based in the
48 contiguous United Stated. XM™ offers 100 coast to
coast channels including music, news, sports, talk,
and children’s programming. XM™ provides digital
quality audio and text information that includes song title
and artist name. A service fee is required in order to
receive the XM™ service. For more information,
contact XM™ at www.xmradio.com or call
1-800-852-XMXM (9696).
Playing the Radio
PWR (Power):Press this knob to turn the system on
and off.
VOL (Volume):Turn this knob to increase or to
decrease the volume.
AUTO VOL (Automatic Volume):With automatic
volume, the audio system will adjust automatically to
make up for road and wind noise as you drive by
increasing the volume as vehicle speed increases.
Set the volume at the desired level. Press this button to
select LOW, MEDIUM, or HIGH. AVOL will appear
on the display. Each higher setting will provide more
volume compensation at faster vehicle speeds. To turn
automatic volume off, press this button until AVOL
OFF appears on the display.
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