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Radio Locked

This is a discussion on Radio Locked within the Audio/Video Electronics forums, part of the General Discussion category; OK I took the 6 disc out of my Sierra and put it in my dads Trailblazer. I did it ...

  1. #1
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    Radio Locked


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    OK I took the 6 disc out of my Sierra and put it in my dads Trailblazer. I did it with the power on in the TB and the radio worked fine until i cranked the engine and it locked

    I went to the dealer and he hooked the tech-2 up to it and said he couldnt unlock it. He said there is a problem with switching from the truck to the TB

    Does anyone have any advice on how to unlock it? Otherwise I guess I will have a 6 disc for sale
    04 SIlver Sierra everything except leather
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    SPL NUT!!! idbl_Fanatic's Avatar
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    Re: Radio Locked

    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 in your Owner’s manual. Use the code from STEP 11 instead of your personal code.


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    Registered User blusxty9chevell's Avatar
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    Re: Radio Locked

    D@MN this guy has to of had to do it atleast once b 4......
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  4. #4
    :-) Mark's Avatar
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    Re: Radio Locked

    exactly as he said above..

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  5. #5
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    DetroitImagery.com Joe's Avatar
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    Re: Radio Locked

    Great info, this is now a sticky
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    hippies hate deathmetal! Blaze5509's Avatar
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    Re: Radio Locked

    Damn!
    Now that is some research!

    Good job "idbl Fanatic"

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    Registered User doe702's Avatar
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    Re: Radio Locked

    will this work with all new gm radios? you dont need to SPS program the system? thnx

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    Registered User 98chevyZ71's Avatar
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    Re: Radio Locked

    wow now i can go steal me some stock radios! no wait. why would anyone want a stock radio?
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    03arrival bigmark76's Avatar
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    Re: Radio Locked

    Is there a way to unlock the navigation radio?
    03 arrival blue silverado with a billet bowtie, flomaster 40 series dumps, a 3 in P.A. body lift, sticky mickey mud grappler radial and mickey thompsom classic lock 2's, and everything is painted to match.Just added in dash 6 disc.

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    Re: Radio Locked

    Does this work for all GM radios, my 1997 is locked and driving me crazy without tunes. thanks
    Last edited by bikernut; 10-25-2005 at 05:51 AM.

  11. #11
    Registered User SwampBus's Avatar
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    Re: Radio Locked

    Quote Originally Posted by 98chevyZ71
    wow now i can go steal me some stock radios! no wait. why would anyone want a stock radio?
    I'm right next to Gary Indiana so stolen stock radios are pretty common.
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    Supporting Member Bob T's Avatar
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    Re: Radio Locked

    Quote Originally Posted by Blaze5509
    Damn!
    Now that is some research!

    Good job "idbl Fanatic"
    Probably just a lucky guess.
    '04 Silverado 1/2 ton 2WD ext. cab dk. grey. 5.3 liter, locking diff. XLerator exhaust - offbrand but throaty. Borgeson intermediate shaft, Bilstein HD shocks.

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  13. #13
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    Re: Radio Locked

    This does not work on 2003+ The display is "LOCKED" not LOC. Unfortunately, our local dealer couldn't unlock a radio I got on Ebay.

    ****Update****

    Another dealer was able to unlock using their computer scanner. They simply deleted the old VIN from the radio and added mine. Apparently our local dealer was trying to unlock it the old way by holding the 2 and 3 buttons down. The cost was about $50 bucks when it was going to be free for doing it the old way. Anyway, my radio from Ebay works fine now.
    Last edited by aldaran; 03-19-2006 at 10:30 PM.

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    Re: Radio Locked

    Man am i glad i found these forums

  15. #15
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    Talking Re: Radio Locked

    THANK YOU "Fanatic" for your GM unlock post.
    IT WORKS GREAT.

  16. #16
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    Re: Radio Locked

    if there is a mode button hold that down and press the power button on the 6 disc that should unlock it

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    Re: Radio Locked

    I'm trying to switch out a factory radio I got from a salvaged vehicle in my 2002 Trailblazer. The display says "locked" rather than "loc" and I tried holding down the 2 and 3 presets and got no response. Will I have to take it to the dealer? If so, how much will it cost?

  18. #18
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    Re: Radio Locked

    I hate Theftlock.

  19. #19
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    Re: Radio Locked

    Quote Originally Posted by rpdtony
    I'm trying to switch out a factory radio I got from a salvaged vehicle in my 2002 Trailblazer. The display says "locked" rather than "loc" and I tried holding down the 2 and 3 presets and got no response. Will I have to take it to the dealer? If so, how much will it cost?

    I have an 02 TB and I'm looking into swapping my OE for another OE. Just trying to get all the info I need beforehand.
    Last edited by Partsguy198; 07-17-2006 at 01:14 PM.

  20. #20
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    Re: Radio Locked

    Will this procedure work on an 01 Silverado. I bought the truck with 4000mi. on it and I don't know if anyone ever put a code into it. Eventually I'm going to need a new battery and I would like to get the radio working.

    Willy Victor

 

 
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