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Old 05-24-2011, 06:28 PM   #69
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Join Date: May 2011
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Default Re: Unlocking Theft Deterrent Radio

The following solution worked for 1998 SL2 with Stereo/CD Player as of 5/22/2011. Unit was locked in INOP state. I followed the steps outlined below EXCEPT I used the dealer code 206053 followed by asterisk in Step 3. (correction has been noted below)

***Read all steps before attempting. You are on a time limit when entering codes, so knowing what to do in advance will save alot of frustration***

1.) To begin, if your radio is displays LOC, then proceed to step 2. If your radio says INOP, then turn your ignition to the RUN position, and turn the radio ON. You must leave it like this for a minimum of 1 hour (not 59 minutes) to clear the INOP message. I would wait 1 1/2 hours just in case doing it too early causes the timer to start over.

2.) Turn your ignition to RUN (if not already), and your radio to OFF. Press and hold preset buttons 2 and 3 for around 5-10 seconds to obtain a scrambled version of your radio's original factory set code.

3.) Call 800-537-5140 and ignore whatever you are promted to do (something about different dealer brands Chevy, Pontiac, Saturn,etc.), and type the number 202108 into your phone and then press the # button. (**UPDATED 5/22/2011: use dealer authorization 206053 follwed by * asterisk)

4.) Input your radio's 4 digit code into your phone when prompted, then press the * button (NOT pound symbol like above step) and be ready with a pen and paper to write down the unscrambled code. Keep this code somewhere you WILL NOT lose it. I wrote mine in the notes section of the owners manual.

5.) Once you have the code written down, press and hold 5 and 6 on your radio's preset buttons for 5-10 seconds.

6.) Then press the seek down button once to start the entry process.

7.) Using the following key, repeatedly press the buttons to set your code:
seek down = first digit
seek up = second digit
tune down = third digit
tune up = fourth digit

NOTE: I just checked a picture of the stereo out and discovered the buttons have arrows facing left and right and not up and down. For the purposes of this process, left represents down, and right represents up.

8.) Once you have the code entered, press AM/FM to set it.

Presto, you have kept your local dealer from screwing you out of $30-100 dollars.

Note that the code given in step 3 belongs to a Pontiac dealer out there somewhere (judging by the number 2 at the beginning of the code if you listen to the voice prompts on the 800 number), so if they go out of business or wise up to their code being used, this method may eventually not work. However, the post I dug it up from is over a year old, so there is hope that it will last a while.
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