[Free Solution] Getting key code for GMC Sierra 3500HD Denali Long with keyless entry

4047 views - Last reply: February 18, 2025
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Where can I locate the key code to program a GMC Sierra 3500HD Denali Long key fob?

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

Replies (5)

Saved me from towing my GMC Sierra 3500HD Denali Long. Thanks!

Great info! Needed this for my old GMC Sierra 3500HD Denali Long.

My GMC Sierra 3500HD Denali Long's key code has been a nightmare. Trying this now.

Desperate to get my GMC Sierra 3500HD Denali Long running again. Trying this tonight.

My GMC Sierra 3500HD Denali Long refuses to start. Could be the key code—trying this fix.

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