ignition CHEVROLET IMPALA 2004 8.G Service Manual

Highbeam Out Warning Message
If this message appears, you may have a problem with
your high-beam headlamps.
The message will stay on about 60 seconds. When the
ignition is turned off, this message will be displayed
again for three seconds to remind you that you
may have a problem with your highbeam-headlamps.
Be sure to check your bulbs right away and replace
them if necessary.
SeeBulb Replacement on page 5-58.
Driver Information Center (DIC)
If your vehicle is equipped with the DIC, it will show
information about the vehicle and the surroundings. It is
located in the headliner between the sun visors. United States
Canada
Optional Sunroof Version Shown
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Setting the Variance
Turn the ignition on and cycle the DIC to the
Compass/Temperature mode. Press the RESET button
for about ve seconds. The last entered variance
zone number and VAR will be displayed. Press the
MODE button until the proper variance zone number on
the map is shown. Press the RESET button to set
the new variance zone and resume normal operation.All the display segments will be illuminated briey to
acknowledge the change in zone number. A chime will
sound to conrm that the new zone number has
been set.
Automatic Compass Calibration
The compass is self-calibrating, which eliminates the
need to manually set the compass. When the vehicle is
new, the calibration process may not be complete. In
these cases CAL will be displayed, and all segments of
the compass will be illuminated where the compass
reading is normally displayed.
To calibrate the compass, in an area free from large
metal objects, make one to two 360° turns. The
calibration symbol will turn off and the compass reading
will be displayed.
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Manual Compass Calibration
If the compass appears erratic and the calibration
symbol does not appear, you must manually put the
compass into the calibration mode.
Turn the ignition on and cycle the DIC to the
Compass/Temperature mode. Press the RESET button
for at least 10 seconds until the calibration symbol
appears and all segments of the compass display are
illuminated. A chime will sound to conrm that the
calibration mode is active. Release the button and
complete two or three 360° turns in an area free from
large metal objects. The calibration symbol will turn
off and the compass reading will be displayed. A chime
will sound to verify that the calibration is complete.
Error Displays

An error of the speed sensor or fuel sender will
cause -E- to be displayed.
In the absence of vehicle communications,
adash--isdisplayed.
If one of these error messages appear, see your dealer.
Trip Computer
There are ve trip computer displays which may be
stepped through by pushing the MODE button.
The information will appear in the following order:
AVG ECON (Average Fuel Economy):This shows the
average fuel economy since the last reset.
INST ECON (Instantaneous Fuel Economy):This
shows fuel economy for the most recent second
of driving.
RANGE (Trip Range):This shows the estimated
distance that can be traveled with the remaining fuel.
The fuel economy used to calculate range is based
on the last few hours of driving. When in a low
fuel condition, LO is displayed.
FUEL USED (Trip Fuel Used):This shows the
accumulated fuel used since the last reset.
AVG SPEED (Average Speed):This shows the
average speed since the last reset.
Resetting the Trip Computer
Press and hold the RESET button for at least three
seconds. The reset is acknowledged with all segments
of the display lit briey and a chime. A reset can
only be done in AVG ECON, FUEL USED and AVG
SPEED displays. Each setting must be reset individually.
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Audio System(s)
Notice:Before adding any sound equipment to
your vehicle, like a tape player, CB radio, mobile
telephone, or two-way radio, make sure that it can
be added by checking with your dealer. Also,
check federal rules covering mobile radio and
telephone units. If sound equipment can be added,
it is very important to do it properly. Added
sound equipment may interfere with the operation
of your vehicle’s engine, radio, or other systems,
and even damage them. Your vehicle’s systems may
interfere with the operation of sound equipment
that has been added improperly.
Figure out which audio system is in your vehicle, nd
out what your audio system can do, and how to operate
all of its controls.
Your vehicle has a feature called Retained Accessory
Power (RAP). With RAP, the audio system can be
played even after the ignition is turned off. See
“Retained Accessory Power (RAP)” underIgnition
Positions on page 2-17.
Setting the Time
Press and hold the HR or MN buttons for two seconds.
The clock symbol will appear on the display. Then
press and hold HR until the correct hour appears on the
display. AM or PM will appear for morning or evening
hours. Press and hold MN until the correct minute
appears on the display. The time can be set with the
ignition on or off.
To synchronize the time with an FM station broadcasting
Radio Data System (RDS) information, press and
hold HR and MN at the same time for two seconds until
UPDATED and the clock symbol appear on the
display. If the time is not available from the station, NO
UPDAT will appear on the display.
RDS time is broadcast once a minute. After tuning to an
RDS broadcast station, it may take a few minutes for
the time to update.
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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.
DISPL (Display):Press this knob to switch the display
between the radio station frequency and the time.
When the ignition is off, press this knob to display the
time.
For RDS, press the DISPL knob to change what
appears on the display while using RDS. The display
options are station name, RDS station frequency, PTY,
and the name of the program (if available).
For XM™ (if equipped), press the DISPL knob while in
XM mode to retrieve four different categories of
information related to the current song or channel:
Artist, Song Title, Category or PTY, Channel
Number/Channel Name.
To change the default on the display, press the DISPL
knob until you see the display you want, then hold
the knob for two seconds. The radio will produce one
beep and the selected display will now be the default.AUTO VOL (Automatic Volume):With automatic
volume, the 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 setting will allow 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. To turn
automatic volume off, press this button until OFF
appears on the display.
Finding a Station
BAND:Press this button to switch between FM1, FM2,
AM, or XM1 or XM2 (if equipped). The display will
show the selection.
TUNE:Turn this knob to select radio stations.
qSEEKr:Press the right or the left arrow to go to
the next or to the previous station and stay there.
The radio will only seek stations with a strong signal
that are in the selected band.
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Playing a Cassette Tape
The 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 you hear nothing or hear a garbled
sound, the tape may not be in squarely. Press the EJT
button to remove the tape and start over.
If the ignition and radio are off, press the EJT button or
the DISPL knob to insert and to begin play of a tape.
If the ignition is on and the radio is off, the tape can be
inserted and will begin playing. A tape symbol will
appear on the display when a tape is inserted.
While the tape is playing, use VOL, TUNE, SEEK, and
PSCAN controls just as you do for the radio. The
tape symbol and an arrow showing which side of the
tape is playing will appear on the display.
Cassette tape adapter kits for portable CD players will
work in the cassette tape player. See “CD Adapter Kits”
later for more information.Your tape bias is set automatically when a metal or
chrome tape is inserted.
If an error appears on the display, see “Cassette Tape
Messages” later in this section.
1 PREV (Previous):The tape must have at least three
seconds of silence between each selection for previous to
work. Press this pushbutton to go to the previous
selection on the tape if the current selection has been
playing for less than three seconds. If pressed when the
current selection has been playing from three to
13 seconds, it will go to the beginning of the previous
selection or the beginning of the current selection,
depending on the position on the tape. If pressed when
the current selection has been playing for more than
13 seconds, it will go to the beginning of the current
selection.
SEEK and a negative number will appear on the display
while the cassette player is in the previous mode.
Pressing this pushbutton multiple times will increase the
number of selections to be searched back, up to -9.
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2 NEXT:The tape must have at least three seconds of
silence between each selection for next to work. Press
this pushbutton to go to the next selection on the tape.
If you press this pushbutton more than once, the player
will continue moving forward through the tape. SEEK and
a positive number will appear on the display.
3 REV (Reverse):Press this pushbutton to quickly
reverse the tape. The station frequency and REV will
appear on the display. Press it again to return to playing
speed. The radio will play while the tape reverses.
Select stations during reverse operation using TUNE
and the SEEK arrows.
4 FWD (Forward):Press this pushbutton to quickly
advance the tape. The station frequency and FWD will
appear on the display. Press the pushbutton again
to return to playing speed. The radio will play while the
tape advances. Select stations during forward
operation using TUNE and the SEEK arrows.5XSIDE:Press this pushbutton to play the other side
of the tape.
qSEEKr:The tape must have at least three
seconds of silence between each selection for seek to
work. The left arrow is the same as the PREV
pushbutton and the right arrow is the same as the
NEXT pushbutton. If either arrow is held or pressed
more than once, the player will continue moving
backward or forward through the tape.
BAND:Press this button to listen to the radio when a
tape is playing. The inactive tape will remain safely
inside the radio for future listening.
TAPE AUX (Auxiliary):Press this button to play a
cassette tape when listening to the radio. The tape
symbol will appear on the display when a tape is loaded.
ZEJT (Eject):Press this button to eject a tape.
Eject may be activated with the radio off. Cassette tapes
may be loaded with the ignition and radio off if this
button is pressed rst.
3-66

Playing a CD
Insert a CD partway into the slot, label side up. The
player will pull it in and the CD should begin playing. The
CD symbol will appear on the display. If you want to
insert a CD with the ignition off, rst press the EJT
button or the DISPL knob.
If you turn off the ignition or radio with a CD in the
player, it will stay in the player. When you turn on the
ignition or the radio, the CD will start playing, where
it stopped, if it was the last selected audio source.
As each new track starts to play, the track number will
appear on the display.
The CD player can play the smaller 8 cm single CDs
with an adapter ring. Full-size CDs and the smaller CDs
are loaded in the same manner.
If playing a CD-R the sound quality may be reduced
due to CD-R quality, the method of recording, the quality
of the music that has been recorded, and the way the
CD-R has been handled. You may experience an
increase in skipping, difficulty in nding tracks, and/or
difficulty in loading and ejecting. If these problems occur
try a known good CD.Do not add paper labels to CDs, they could get caught
in the CD player.
Do not play 3 inch CDs without a standard adapter CD.
If an error appears on the display, see “CD Messages”
later in this section.
1 PREV (Previous):Press this pushbutton to go to the
start of the current track if more than eight seconds
have played. 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
backward through the CD.
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 CD.
3-76

3 REV (Reverse):Press and hold this pushbutton to
reverse quickly within a track. Press and hold this
pushbutton for less than two seconds to reverse at six
times the normal playing speed. Press and hold it
for more than two seconds to reverse at 17 times the
normal playing speed. Release it to play the passage.
The display will show ET and the elapsed time of
the track.
4 FWD (Forward):Press and hold this pushbutton to
advance quickly within a track. Press and hold this
pushbutton for less than two seconds to advance at six
times the normal playing speed. Press and hold it for
more than two seconds to advance at 17 times the
normal playing speed. Release it to play the passage.
The display will show ET and the elapsed time of
the track.
6 RDM (Random):Press this pushbutton to hear the
tracks in random, rather than sequential, order. RDM ON
will appear on the display. RDM T and the track
number will appear on the display when each track
starts to play. Press RDM again to turn off random play.
RDM OFF will appear on the display.qSEEKr:Press the left arrow to go to the start of
the current or of the previous track. Press the right
arrow to go to the start of the next track. If you
hold either arrow or press it more than once, the player
will continue moving backward or forward through
the CD.
DISPL (Display):Press this knob to see how long the
current track has been playing. ET and the elapsed
time of the track will appear on the display. To change
the default on the display (track or elapsed time),
press the knob until you see the display you want, then
hold the knob for two seconds. The radio will produce
one beep and the selected display will now be the
default.
BAND:Press this button to listen to the radio when a
CD is playing. The inactive CD will remain safely
inside the radio for future listening.
CD AUX (Auxiliary):Press this button to play a CD
when listening to the radio. The CD symbol will appear
on the display when a CD is loaded.
ZEJT (Eject):Press this button to eject a CD. 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 rst.
3-77

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 and 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. If you want to insert a tape
while the ignition is off, rst press the EJT button or the
DISPL knob.
While the tape is playing, use VOL, TUNE, SEEK, and
PSCAN controls just as you do for the radio. The
radio will display TAPE and an arrow showing which
side of the tape is playing.
Your tape bias is set automatically when a metal or
chrome tape is inserted.
If an error appears on the display, see “Cassette Tape
Messages” later in this section.1 PREV (Previous):Your tape must have at least three
seconds of silence between each selection for previous
to work. Press this pushbutton to go to the previous
selection on the tape if the current selection has been
playing for less than three seconds. If pressed when the
current selection has been playing from 3 to 13 seconds,
it will go to the beginning of the previous selection or
the beginning of the current selection, depending upon
the position on the tape. If pressed when the current
selection has been playing for more than 13 seconds, it
will go to the beginning of the current selection.
SEEK and a negative number will appear on the display
while the cassette player is in the previous mode.
Pressing this pushbutton multiple times will increase the
number of selections to be searched back, up to -9.
2 NEXT:Your tape must have at least three seconds of
silence between each selection for next to work.
Press this pushbutton to go to the next selection on the
tape. If you press this pushbutton more than once,
the player will continue moving forward through the tape.
SEEK and a positive number will appear on the
display. To forward through each selection press the
right SEEK arrow.
3-87