[Recommended Fix] Where can I locate the key code to program a 1999 GMC Sierra 2500 HD key?

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Trying to program a new key for my 1999 GMC Sierra 2500 HD - where's the key code?

Hello! We've developed a VIN-based tool to help you get your key code for the 1999 GMC Sierra 2500 HD. Check it out here: VIN Key Code Generator.

Replies (5)

Been stuck with my 1999 GMC Sierra 2500 HD for weeks. This might be the fix.

Why is finding a key code on a 1999 GMC Sierra 2500 HD this hard?!

This thread might save my 1999 GMC Sierra 2500 HD. Thanks everyone!

Just checking in to say this helped with my 1999 GMC Sierra 2500 HD. Thanks!

This trick worked for my buddy's 1999 GMC Sierra 2500 HD. Giving it a go myself.

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