[Confirmed] Alternatives to key code for 2004 GMC Sierra 2500 Extended models

2984 views - Last reply: February 16, 2025
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Need the factory key code to program a key for my 2004 GMC Sierra 2500 Extended

Hello! We've developed a VIN-based tool to help you get your key code for the 2004 GMC Sierra 2500 Extended. Check it out here: VIN Key Code Generator.

Replies (4)

This forum is more helpful than my dealer. Thanks from a 2004 GMC Sierra 2500 Extended owner.

I’ve been locked out of my 2004 GMC Sierra 2500 Extended all week. Hope this helps.

Hope this method is better than the last one I tried on my 2004 GMC Sierra 2500 Extended.

Just what I needed! My 2004 GMC Sierra 2500 Extended has been acting up lately.

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