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  #1  
Old 08-17-2012, 10:04 PM
ponted1 ponted1 is offline
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Radio 'LOCKED'

I just bought a 2002 Grand AM, and the radio displays 'LOCKED'.
I tried:
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  • Looking at the face of your GM Delco radio, hold down the preset buttons 1 & 4 OR 2 & 3 (Depending on year and model) for approximately 10 seconds or until a set of 2 or 3 numbers comes up on the display. Write the numbers down.
But the radio continues to display 'LOCKED', and no numbers appear.
Any suggestions?
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Old 08-17-2012, 10:28 PM
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gmtech1 gmtech1 is offline
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Re: Radio 'LOCKED'

Your 2002 uses Class 2 serial data. Does not have the same unlock proceedure as the older models. The only way to unlock your radio is with a Tech 2 scanner.
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Old 08-18-2012, 09:20 AM
ponted1 ponted1 is offline
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Re: Radio 'LOCKED'

Thank You.
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