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    Fuzzy match across codes, option descriptions, and model aliases. Every result is graded and, where the factory documents it, cited.
    R8G Factory-verified

    Chevrolet · Regular Production Option

    OnStar One Fleet, 12 months

    Years 2007, 2014–15, 2025–27 Models 26 Factory citations 65
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    Also described as OnStar Safe and Sound service, 1 additional yearOnStar Safe and Sound, 1 additional year (fleet)OnStar, 1 year additional Safe and Sound serviceOnStar One Business Plus, 12 months of serviceOnStar One Fleet plan, 12 months

    Also documented for BuickCadillacGMC

    Documented applications

    Equinox EV — Ultium BEV2 (2024–2027)
    Silverado HD (T1XX, 2020–2027)
    Tahoe — GMT900 (2007–2014)
    • 2007 Factory-verified

      OnStar fleet code from the 2007 kit order guide (fleet or government order types); the service lists do not print it. MSRP $199; the RFB footnote names R8G or R8Y as the plans that, with the 1-year OnStar service (UE1), give two years.

      GM Heritage factory kit — 2007 Chevrolet Tahoe, p.144, p.171.
    Tahoe — T1XX (2021–2027)
    TrailBlazer — GMT360 (2002–2009)
    • 2007 Factory-verified

      OnStar fleet code from the 2007 kit order guide (fleet or government order types); the service lists do not print it.

      GM Heritage factory kit — 2007 Chevrolet Trailblazer, p.153.

    Related codes · mentioned in these notes

    1992LT3LTR8YRFBU5GUE1VV4

    This page aggregates every documented appearance of R8G in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.