[Confirmed] Where is the transponder code located in a 1999 GMC 3500 Extended Cab?

574 views - Last reply: December 03, 2024
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Where do I find the key code to program keys for my 1999 GMC 3500 Extended Cab?

Hello! We've developed a VIN-based tool to help you get your key code for the 1999 GMC 3500 Extended Cab. Check it out here: VIN Key Code Generator.

Replies (5)

My 1999 GMC 3500 Extended Cab just blinks. I think this might fix it.

Waiting to see if this will work on my 1999 GMC 3500 Extended Cab as well.

Appreciate the tips—trying to unlock my 1999 GMC 3500 Extended Cab key code too.

I need this so bad for my 1999 GMC 3500 Extended Cab. Subscribed!

Really hoping this unlocks my 1999 GMC 3500 Extended Cab's mystery code.

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