[Success] 2022 GMC Hummer EV remote replaced - car not recognizing it

3946 views - Last reply: March 06, 2025
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How to get the factory key code for my 2022 GMC Hummer EV to make keys?

Hello! We've developed a VIN-based tool to help you get your key code for the 2022 GMC Hummer EV. Check it out here: VIN Key Code Generator.

Replies (5)

Trying to figure this out for my 2022 GMC Hummer EV too!

My 2022 GMC Hummer EV is just sitting there waiting for a miracle like this.

Just checking in to say this helped with my 2022 GMC Hummer EV. Thanks!

Was about to give up on my 2022 GMC Hummer EV, but this gives me hope.

My 2022 GMC Hummer EV just blinks. I think this might fix it.

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Security Systems
This means your car's immobilizer system can't read the key's transponder. Causes: dead key battery, damaged transponder chip, faulty car antenna ring around ignition, or system needs resetting. Try replacing the battery first.
Lost Keys
Locksmiths or dealers can: 1) Decode your door or ignition lock to determine key cuts 2) Access your car's key code through manufacturer databases (with proof of ownership) 3) Program new transponder keys using diagnostic equipment.
Key Fob Issues
1) Find the seam and pry open the fob (some have tiny screws) 2) Note battery orientation 3) Remove old battery (CR2032 is most common) 4) Insert new battery 5) Reassemble. Test all buttons - if issues remain, the fob may need reprogramming.
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Professional key programming requires: diagnostic tools to access the immobilizer system, key code software, transponder programmers, and often proprietary manufacturer equipment. Some locksmiths and all dealers have these tools.
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