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Thread: 2021 gmc terrian

  1. 01-02-2025 #1
    matthewus93
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    2021 gmc terrian

    is this vehicle compatible with the software
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  2. 01-02-2025 #2
    matthewus93
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    i think its e88 but not sure
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  3. 01-02-2025 #3
    Bill@HPTuners
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    E88 is not supported.
    You can open a support ticket here https://support.hptuners.com/
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  4. 02-09-2025 #4
    MetalMann
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    Quote Originally Posted by Bill@HPTuners View Post
    E88 is not supported.
    What is the reason for this, loosing ground with many others getting into it. Unlocks are similar to e90, same plug and software? Lets get some access! Auto Start/Stop has been a BIG question!!
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