[Fixed] DIY method to find key code for 2018 Chevrolet Silverado 3500 HD

3346 views - Last reply: April 01, 2025
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Trying to program a spare key - where's the key code on my 2018 Chevrolet Silverado 3500 HD?

Hello! We've developed a VIN-based tool to help you get your key code for the 2018 Chevrolet Silverado 3500 HD. Check it out here: VIN Key Code Generator.

Replies (4)

I tried this trick and it actually worked on my 2018 Chevrolet Silverado 3500 HD!

Following along—same issue with my 2018 Chevrolet Silverado 3500 HD.

Was about to give up on my 2018 Chevrolet Silverado 3500 HD, but this gives me hope.

I’m stuck in a parking lot with my 2018 Chevrolet Silverado 3500 HD. Trying this now.

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Key Fob Issues
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Programming syncs the key's transponder chip with your car's immobilizer system. The process varies by manufacturer but generally involves: 1) authenticating with the car's computer 2) erasing old keys if needed 3) programming new key codes 4) testing functionality.
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