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BlackBearPerf

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Fast_AT4

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To my understanding the ECM is locked on a 2022 Yukon XL AT4 (and other similar flavors)....can you confirm this point? Much thanks
 
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BlackBearPerf

BlackBearPerf

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To my understanding the ECM is locked on a 2022 Yukon XL AT4 (and other similar flavors)....can you confirm this point? Much thanks
You are correct, really the 2020 and newer ECM's are locked, EFILive dose not see being able to unlock them in the foreseeable future.
 

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