[Working] 2009 Hummer H3 H3T won't start after battery swap - need transponder code?

1220 views - Last reply: December 16, 2024
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How do I obtain the key code to program a 2009 Hummer H3 H3T key fob?

Hello! We've developed a VIN-based tool to help you get your key code for the 2009 Hummer H3 H3T. Check it out here: VIN Key Code Generator.

Replies (5)

Exactly what I was looking for to fix my 2009 Hummer H3 H3T.

Trying to reprogram a new key for my 2009 Hummer H3 H3T—need the code first.

My mechanic said this might help with my 2009 Hummer H3 H3T key issue.

Why is finding a key code on a 2009 Hummer H3 H3T this hard?!

I’ll try this and update how it goes with my 2009 Hummer H3 H3T.

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