1996 CHEVROLET ASTRO display

Activating the Theft-Deterrent Feature
The instructions which follow, explain how to enter your
secret code
to activate the THEFTLOCK system. It is
recommended that you read through all nine steps
before starting the procedure.
NOTE: If you allow more than
15 seconds to elapse
between any steps, the radio automatically reverts to
time and you must start the procedure over at Step
4.
1.
2.
3.
4.
Write down any three or four-digit number from
000 to 1999 and keep it in a safe place separate from
the vehicle.
Turn the ignition
to the ACCESSORY or
RUN position.
Turn the radio off.
PI-- -s the 1 and 4 buttons together. Hold them down
untu --- shows on the display. Next you will use the
secret code number which you have written down.
5. Press MN and 000 will appear on the display.
6. Press MN again to make the last two digits agree
with your code.
7. Press HR to make the first one or two digits agree
with your code.
8. Press AM-FM after you have confirmed that the
code matches the secret code you have written down.
The display
will show REP to let you know that you
need to repeat Steps
5 through 7 to confirm your
secret code.
9. Press AM-FM
and this time the display will show
SEC to let you know
that your radio is secure. The
indicator
by the volume control will begin flashing
when the ignition is turned off.
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Unlocking the Theft-Deterrent Feature After a
Power Loss
Enter your secret code as follows; pause no more than
15 seconds between steps:
1. LOC appears when the ignition is on.
2. Press MN and 000 will appear on the display.
3. Press MN again to make the last two digits agree
with your code.
4. Press HR to make the first one or two digits agree
with your code.
5. Press AM-FM after you have confirmed that the
code matches the secret code you have written down.
The display will show SEC, indicating the radio is
now operable and secure.
If
you enter the wrong code eight times, INOP will
appear on the display. You will have to wait an hour
with the ignition on before you can try again. When you
try again, you will only have three chances to enter the
correct code before INOP appears.
If you lose or forget your code, contact your dealer.
Disabling the Theft-Deterrent Feature
Enter your secret code as follows; pause no more than
15 seconds between steps:
1. Turn the ignition to the ACCESSORY or
RUN position.
2. Turn the radio off.
3. Press the 1 and 4 buttons together. Hold them down
until SEC shows on the display.
4. Press MN and 000 will appear on the display.
5. Press MN again to make the last two digits agree
with your code.
6. Press HR to make the first one or two digits agree
with your code.
code matches the secret code you have written down.
The display will show
---, indicating that the radio is
no longer secured.
7. Press AM-FM after you have confirmed that the
If the code entered is incorrect, SEC will appear on the
display. The radio
will remain secured until the correct
code is entered.
When battery power is disconnected from a secured
radio, the radio won’t turn on and LOC will appear on
the display.
To unlock a secured radio, see 44Unlocking the
Theft-Deterrent Feature After a Power
Loss” earlier in
this section.
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Care of Your Cassette Tape Player
A tape player that is not cleaned regularly can cause
reduced sound quality, ruined cassettes or a damaged
mechanism. Cassette tapes should be stored in their
cases away from contaminants, direct sunlight and
extreme heat. If they aren’t, they may
not operate
properly or may cause failure of the tape player.
Your tape player should be cleaned regularly after every
50 hours of use. Your radio may display CLN to indicate
that
you have used your tape player for 50 hours without
resetting the tape clean timer. If
you notice a reduction
in sound quality, try a known good cassette to see if
the tape or the tape player is at fault. If this other
cassette has no improvement in sound quality, clean
the tape player. Cleaning
may be done with a scrubbing action,
non-abrasive cleaning cassette with pads which scrub
the tape head as the hubs
of the cleaner cassette turn. It
is normal for the cassette to eject while cleaning. Insert
the cassette at least three times
to ensure thorough
cleaning. A scrubbing action cleaning cassette is
available through your
GM dealer.
You may also choose a non-scrubbing action, wet-type
cleaner which uses a cassette with a fabric belt to clean
the tape head. This type of cleaning cassette will not
eject. It may not clean as thoroughly as the scrubbing
type cleaner.
Cassettes are subject to wear and the sound quality may
degrade over time. Always make sure that the cassette
tape is
in good condition before you have your tape
player serviced.
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