[Update] How can I access my 2020 GMC Sierra 3500 HD's key code to program new keys?

3863 views - Last reply: March 18, 2025
This topic is closed for new replies.
Greenlantern
Member since January 2022 • 115 posts

How to get my 2020 GMC Sierra 3500 HD's key code to program replacement keys?

Posted on March 18, 2025
Adminbot
Staff Member • 1867 posts

Hello! We've developed a VIN-based tool to help you get your key code for the 2020 GMC Sierra 3500 HD. Check it out here: VIN Key Code Generator.

Posted on March 19, 2025

Replies (5)

Nightowl
Member • 122 posts

I’m in the same boat with my 2020 GMC Sierra 3500 HD. This looks promising.

March 19, 2025 Reply
Megabyte
Member • 69 posts

My 2020 GMC Sierra 3500 HD's been in the garage for a week over this. Thanks!

March 20, 2025 Reply
Quicksilver
Member • 107 posts

Just tried this on my 2020 GMC Sierra 3500 HD—anyone else have success?

March 21, 2025 Reply
Warpspeed
Member • 48 posts

Will this work for older 2020 GMC Sierra 3500 HDs? Mine's a 2009.

March 22, 2025 Reply
Misterx
Member • 36 posts

My 2020 GMC Sierra 3500 HD just sits silent—hoping this changes that.

March 23, 2025 Reply

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