ignition CHEVROLET IMPALA 2000 8.G Service Manual

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2-76
SERVICE VEHICLE SOON
This message will come
on if you have a certain
emissions
-related
vehicle problems.
These problems may not be so obvious and may not
affect vehicle performance or durability. Consult a
qualified dealership for necessary repairs to maintain top
vehicle performance. The message will come on briefly
when your ignition is turned on to show you that it is
working properly.TRUNK OPEN
This message will appear if
the trunk is not completely
closed and the ignition is
ON. If you are in a forward
or reverse gear position you
will also hear four chimes.
HIGHBEAM OUT
If this message appears, you
may have a problem with
your high
-beam headlamps.
The message will stay on approximately 60 seconds.
Have your vehicle serviced as soon as possible.
SeeªBulb Replacementº in the Index.

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2-78 Compass Variance
Compass variance is the difference between magnetic
north and geographic north. In some areas of the
country, the difference is great enough to cause the
compass to give false readings. If this occurs, the
compass variance must be set.
Setting the Variance
Turn the ignition on and cycle the DIC to the
Compass/Temperature mode. Press the RESET button for
approximately five seconds. The last entered variance zone
number will be displayed. Press the MODE button until
the proper variance number, as shown on the map, is
showing. Press the RESET button to set the new variance
zone and resume normal operation.
The display will show all the display segments for half a
second to acknowledge the change in zone number.
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 ªCALº 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 three 360
turns. The calibration symbol
will turn off and the compass reading will be displayed.

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2-79
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. Release the button and complete three 360

turns in an area free from large metal objects. The
calibration symbol will turn off and the compass reading
will be displayed.
Error Displays

An error of the vehicle's speed sensor or fuel sender
will cause ª
-E-º to be displayed.

In the absence of vehicle communications, a double
dash ª
--º is displayed.
If one of these error messages appear, see your dealer.
Trip Computer
There are five 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.

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 two
seconds. The reset is acknowledged with the display
showing all segments on for a period of half a second.
A reset can only be done in AVG ECON, FUEL USED
and AVG SPEED displays.

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3-7 Rear Window Defogger
The rear window
defogger uses a
warming grid to
remove fog from
the rear window.
Press the button
marked REAR to
turn the defogger on.
An indicator on the
button will light.
The rear window defogger will turn itself off after about
15 minutes. If you turn it on again, the defogger will
only run for about 7.5 minutes before turning off. You
can also turn the defogger off by turning the ignition off
or by pressing the button again.
Do not attach anything like a temporary vehicle license
or decal across the defogger grid.
NOTICE:
Don't use a razor blade or something else sharp
on the inside of the rear window. If you do, you
could cut or damage the warming grid, and the
repairs wouldn't be covered by your warranty.
Don't put decals there because you might have to
scrape them off.

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Audio Systems
Your audio system has been designed to operate easily
and give years of listening pleasure. You will get the
most enjoyment out of it if you acquaint yourself with it
first. Find out what your audio system can do and how
to operate all its controls, to be sure you're getting the
most out of the advanced engineering that went into it.
Setting the Clock for Systems without Radio
Data System
Press and hold the HR or MIN arrow for two seconds.
Then press the HR arrow until the correct hour appears.
Press and hold the MIN arrow until the correct
minute appears.
Setting the Clock for Systems with Radio
Data System
Press and hold HR or MN for two seconds. Then press
and hold HR until the correct hour appears. AM or PM
will appear on the display. Press and hold MN until the
correct minute appears. The clock may be set with the
ignition on or off. The clock symbol will appear on the
display in time
-set mode.
To set the clock to the time of a 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 instead.

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FADE: Press and release AUDIO until FAD appears on
the display. Then press and hold the up arrow to move
the sound to the front speakers or the down arrow to
move the sound to the rear speakers. ªFº and a number
will appear on the display when the sound is balanced
toward the front speakers.ªRº and a number will appear
on the display when the sound is balanced toward the
rear speakers. F and a zero will appear on the display
when the the sound is balanced between the speakers.
Release the up or down arrow when you find the speaker
balance you want or when the maximum or minimum
level is reached.
To set BALANCE or FADE to the middle position,
select the desired speaker control. 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 set all of the tone controls and speaker
controls to the middle position, end out of audio mode.
Then press and hold AUDIO for more than two seconds
until you hear a beep. CEN will appear on the display.AM-FM Stereo with Cassette Tape Player
with Radio Data System (RDS) and
Automatic Tone Control (If Equipped)
Playing the Radio
PWR: Press this button to turn the system on and off.
VOL: Turn this knob clockwise to increase volume.
Turn it counterclockwise to decrease volume.
DISP: Press this button to display the clock with the
ignition off.

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ALERT!: This type of announcement 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 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.
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, but 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.
While the tape is playing, use the VOL, FADE, BAL,
TREB, BASS and SEEK controls just as you do for the
radio. The display will show TAPE and an arrow
showing which side of the tape is playing.If you want to insert a tape when the ignition is off, first
press EJT or DISP.
PREV (1): Press this button to go to the beginning of
the current selection. If the PREV button is pressed
and the current selection has been playing from 3 to
13 seconds, it will go to the beginning of the previous
selection. If you press the button more than once, the
player will continue moving back through the tape.
SEEK and a negative number will appear on the display.
Your tape must have at least three seconds of silence
between each selection for PREV to work. The sound
will mute while seeking.
NEXT (2): Press this button to go to the next selection
on the tape. If you press the button more than once, the
player will continue moving forward through the tape.
SEEK and a positive number will appear on the display.
Your tape must have at least three seconds of silence
between each selection for NEXT to work. The sound
will mute while seeking.
REV (3): Press this button to reverse the tape rapidly.
Press it again to return to playing speed. The radio will
play the last selected station while the tape reverses. You
may select stations during REV operation by using
TUNE, SEEK, P SCAN controls.

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Tight/Loose Tape Sensor Defeat
With the radio off and the ignition on, press and hold
the TAPE AUX 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 cassette eject.
CD Adapter Kits
It is possible to use a CD adapter kit with your cassette
tape player after activating the bypass feature on your
tape player.
To activate the bypass feature, use the following steps:
1. Turn the ignition to ON or ACC.
2. Turn the radio off.
3. Press and hold the TAPE button for five seconds.
READY will appear on the display for five seconds,
indicating the feature is active.
4. Insert the adapter. It will power up the radio and
begin playing.
This override routine will remain active until EJT
is pressed.Playing a Compact Disc
Insert a disc partway into the slot, label side up. The player
will pull it in. 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 you're driving on a very rough road or if it's very hot,
the disc may not play and CHECK CD may appear on
the display. When things get back to normal, the disc
should play. If the disc comes out, it could be that:

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.
PREV (1): Press this button to go to the previous track
if the current selection has been playing for less than
eight seconds. If the PREV button 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 the button or press it more than
once, the player will continue moving back through the
disc. The sound will mute while seeking.

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TAPE AUX: With a cassette tape in the player and the
radio playing, press this button to play a cassette tape.
Press AM FM to return to the radio when a cassette tape
is playing. Press TAPE AUX to switch between the tape
and compact disc if both are loaded. The inactive tape
will remain safely inside the radio for future listening.
EJT: Press this button to remove the disc. The radio will
play. EJT 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.
CAL ERR: This is displayed when the radio has not
been calibrated properly for the vehicle. You must return
to the dealership for service.
LOCKED: This is displayed when the Theftlock


system has locked up. You must return to the dealership
for service.
AM-FM Stereo with Compact Disc Player
with Radio Data System (RDS) and
Automatic Tone Control (If Equipped)
Playing the Radio
PWR: Press this button to turn the system on and off.
VOL: Turn this knob clockwise to increase volume.
Turn it counterclockwise to decrease volume.
DISP: Press this button to display the clock with the
ignition off.

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Playing a Compact Disc
Insert a disc partway into the slot, label side up. The player
will pull it in. 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 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 things get back to normal, the disc should
play. If the disc comes out, it could be that:

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. If your radio
displays an error number, write it down and provide it to
your dealer when reporting the problem.
PREV (1): Press this button to go to the previous track
if the current selection has been playing for less than
eight seconds. If the PREV button 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 the button or press it more than
once, the player will continue moving back through the
disc. The sound will mute while seeking.
NEXT (2): Press this button to go to the next track.
TRACK and the track number will appear on the
display. If you hold the button or press it more than
once, the player will continue moving forward through
the disc. The sound will mute while seeking.
REV (3): Press and hold this button to reverse quickly
within a track. Press and hold this button for less than
2 seconds to reverse at 6 times the normal playing
speed. Press and hold it for more than 2 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.
FWD (4): Press and hold this button to advance quickly
within a track. Press and hold this button for less than
2 seconds to advance at 6 times the normal playing speed.
Press and hold it for more than 2 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.