[Completed] Lost transponder code for my 2009 GMC Yukon - any ideas?

4694 views - Last reply: December 10, 2024
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Need my 2009 GMC Yukon's key code to program a replacement key - where to look?

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

Replies (4)

This thread might save my 2009 GMC Yukon. Thanks everyone!

My 2009 GMC Yukon just sits silent—hoping this changes that.

I have the same 2009 GMC Yukon and I'm also trying to find the key code.

Hope this method is better than the last one I tried on my 2009 GMC Yukon.

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An anti-theft system that prevents the engine from starting unless it detects the correct transponder chip in the key. The chip sends a unique code to the car's computer when you turn the ignition. No match = no start, even with a physically matching key.
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