I have a 98 Convertible and try to call the 1800 number that gives the codes and my radio stays locked. Any ideas?

 

The local dealer said they could get me the codes for free if I ever needed it. All I would have to do is bring the car in.

 

You are lucky, they told me they were gonna charge 60.00

 

I have a Word files that contains a lot of info on the radio TheftLoc reset. It may have some stuff in there that you haven't tried yet. PM me your e-mail address and I'll send it to you.

 

"The display code must be unscrambled to get the factory backup code which unlocks the radio. Refer to Radio Theft-Deterrent, Factory Backup Code."

This then says refer to the Dealer Communications System bulletin about the unlock procedure.


I believe this is the bulletin see below about the dealer code you probably are missing:

1. Retrieving scrambled back-up code from unit - with battery and ignition voltages applied and unit power is on.
• If the unit is in the locked condition (LOC is displayed), proceed to step 2. Otherwise, press and hold presets 1 and 4 for about 4 seconds. The display will show either SEC or ---.
• Press and hold presets 2 and 3 for about 6 seconds until the first 3 digits of the display code are displayed. Write the numbers down.
• Press the AM_FM button and the second 3 digits of scrambled code are displayed. Write the numbers down. The unit will revert to the initial display, prior to code retrieval sequence, after approximately 5 seconds or if another button is pressed.

Note: If after depressing the AM-FM button the display does not change, your second set of 3 digits will be the same as the first 3 digits. (Example; if 123 came up first, your scrambled code will be 123123.)




2. Retrieving back-up code from computer (authorized dealers only) - scrambled code and authorized lock account number must first be obtained.
• GM dealerships- your authorized lock account number is XXXX up by the corresponding digit for your controlling car division preceding your 5-digit GM- dealer code. For example, if your GM-dealer code is 01234, and your controlling car division is Chevrolet, then your authorized lock account number would be 101234.
• 1- Chevrolet/Geo
• 2- Pontiac
• 3-Oldsmobile
• 4-Buick
• 5- GMC
• 6-Cadillac
• 7- Canada
• 8 -Saturn 1991-1998 with Delco radios
• AC-DELCO Shops- Your authorized lock account number is XXXX up by a 9 & 0 followed by your 6 digit AC-Delco account number. For example, if your AC-Delco account number were 123456, then your authorized lock account number would be XXXXXXXXX.
• Dial XXX-XXX-XXXX and listen to the phone prompts. Enter your authorized lock account number followed by an asterisk (*). The next prompt will be your scrambled code that was obtained from step A, followed by an asterisk (*). The computer will respond back with 4 or 6 digit back- up code.

3. Unlocking/ deactivating unit with back-up code or customer code - with battery and ignition voltages applied and radio power off.
• Press the HR button until the LOC disappears and OOO appears on the display.
Note: If the display does not change from LOC to 000 the unit is probably in the InOP stage, see Step G.
• Set the first two digits (01-19) of the code with HR (hours) button.
• Note: As if you're setting the time of day you will not see the 0 in the far left side. Example; if the first two digits of your code is 02 you will scroll with the HR button until 2 appears on the display.)
• Set the next two digits (00-99) of the code with the MIN (minute) button.
• Press the AM-FM button to enter the code. The radio will now be unlocked and the display will change to the clock. Continue with the following steps to deactivate the theft deterrent.
• Press the HR button until display changes 000.
• Repeat steps 2-4 above to remove previous code and deactivation the theft deterrent system.

Note: If the backup code received from the computer does not unlock the radio, one possibility is that the first 3 digits of the scrambled code from the radio (Step A) are reversed with second 3 digits. Example; if the scrambled code is 123 456, then it may actually be 456 123. Use Step B retrieve a new backup code.


4. Removing customer code - with battery and ignition voltages applied and radio off.
• Depress presets 1 and 4 for about 6 seconds until the display changes to "SEC". If the display changes to --- there is no code stored.
• Press the HR button until display changes to 000
• Set the first two digits (01-19) of the code with HR button.

Note: As if you're setting the time of day you will not see the 0 in the far left side. Example; if the first two digits of your code is 02 you will scroll with the HR button until 2 appears on the display.)

• Set the next two digits (00-99) of the code with the MIN (minute) button.
• Press the AM-FM button to enter the code. The theft deterrent system will now be deactivated and customer code removed. The display will show --- and then change the clock.


5. Adding a Customer Code - with battery and ignition voltages applied and radio power off.
• Press and hold presets 1 and 4 for about 6 seconds until the display changes to ---
• Press the HR button until the display changes to 000
• Set the first two digits (01-19) of the code with the HR button.
• Set the next two digits (00-99) of the code with the MIN button
• Press the AM-FM button to enter the code
• When "REP" then 000 is displayed, repeat steps 3 through 5 before display changes back to clock. This confirms the customer code and activates the theft deterrent system. The display will then show SEC for secured.


6. Changing customer mode
• When changing a code in a unit that has already had one programmed, the original will have to be removed first. If the radio is unlocked follow step D to remove and deactivate the first code.
• Follow step E to reenter a new code.

Note: If the unit is in LOC the appropriate steps must first be followed


7. INOP second level lock condition

After eight initial failed unlock attempts, the unit will be in a second level lock condition and become inoperative for over 1 hour. Any further code inputs during this hour (or depressing any buttons) will cause the display or indicate InOP for about 15 seconds before returning to LOC.

The unit will still be inoperative. To reset to the normal locked (LOC) condition, battery and ignition voltages must be continuously present for over 1 hour continuously. Do not attempt any radio entries or functions during this time-out period.

After the unit is brought back to the normal locked condition, the correct unlocking procedures can be followed. Following every three unsuccessful entries the unit will return to the inoperative state (InOP) for another 1-hour period.

 

this includes the missing numbers:

The
following procedure will give you a new code that you can use instead of
your personal code. Using this new code, you can �unlock� your radio and
then �re-lock� it with a new code if you
wish.

Prerequisites:
The radio must be in LOC mode NOT in INOP
mode.

Let me explain. If you have activated the Theft-Deterrent
feature of your radio and loose power, the radio goes into LOC (theftlock)
mode. With the ignition on, you must use the MN and HR buttons to enter
you personal code in order to unlock it (The instructions are on page 3-27
in your Y2K Owner�s manual). If you fail to enter the correct code eight
(8) times, the radio goes into INOP mode. You have to wait an hour with
the ignition on before the radio returns to LOC mode (go for a long drive
somewhere).

Procedure:
01. Turn the ignition ON (The radio
displays LOC)
02. Hold down the Radio Presets 2 and 3 buttons for six
seconds
03. The radio display changes from LOC to a three-digit number.
Write this number down. Don�t take forever, fifteen seconds max before the
next step.
04. Press the AM/FM button
05. The radio display changes
to another three-digit number. Write this number to the right of the first
one.
06. You now have a six-digit number, the first three digits are
from STEP 03 and the last three digits are form STEP 05
07. Call 1 800
537 5140
08. Press 1 then # (pound). You�ll hear �Invalid Code, try
again�
09. Press 139010 then # (pound). You will be asked to enter your
four or six digit code followed by * (start)
10. Enter the number from
STEP 6 then * (star)
11. Listen to the four-digit number and write it
down. It will be repeated twice
12. Turn the ignition ON (The radio
displays LOC)
13. Use the MN and HR buttons to enter the code from STEP
11
14. Press the AM/FM button. The radio display changes to
SEC

Your radio is now �un-locked� and usable. The Theft-Deterrent
feature is STILL active! If you want to disable it, use the instruction on
page 3-27 in your Y2K Owner�s manual. Use the code from STEP 11 instead of
your personal code.

 

Thanks All! To update you guys info #139101 and entered my 6 digit code. This worked for me and my radio came on. Saved myself 60.00 at the dealer thanks to all of you.

 

Radio theftloc info