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Thread: LMM OS Compatibility

  1. #1
    Tuner
    Join Date
    Sep 2015
    Posts
    53

    LMM OS Compatibility

    Hello,

    Does anyone know if the LMM ECM can be flashed with any OS?

    Or are they year by year?

    And can HPtuners change the VIN on one?

  2. #2
    I think i read somewhere there are 2 different operating systems that were out there if i recall for that ECU. You can look up on the GM website by vin and see what OS it should have come with. HPT i do not believe you can program a vin, that is for a dealer to do. Likely will need a GM tech to flash an ECU with the operating system and program the vin. Maybe some of the other more techie guys on here can correct me if wrong.
    2006 GTO 403ci lsa heads kooks long tubes corsa ss exhaust OTR intake HPTuned

    2010 GMC Sierra LMM Duramax. Exhaust and tuned