[Solution] How to retrieve the key programming code for GMC Sierra 3500HD SLT Long?

2185 views - Last reply: March 27, 2025
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How to retrieve the key code to make keys for my GMC Sierra 3500HD SLT Long?

Hello! We've developed a VIN-based tool to help you get your key code for the GMC Sierra 3500HD SLT Long. Check it out here: VIN Key Code Generator.

Replies (5)

I tried this trick and it actually worked on my GMC Sierra 3500HD SLT Long!

Just tried this on my GMC Sierra 3500HD SLT Long—anyone else have success?

My GMC Sierra 3500HD SLT Long might finally get back on the road thanks to this.

I’m also looking for how to retrieve the key code on a GMC Sierra 3500HD SLT Long.

Just checking in to say this helped with my GMC Sierra 3500HD SLT Long. Thanks!

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