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

    Archive / GMC / Code
    SBK ✓ Factory-verified

    GMC · Regular Production Option

    Seat belt restraint pretensioner, rear

    Years 2025–27 Models 3 Factory citations 8
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    Also documented for BuickCadillacChevrolet

    Documented applications

    Acadia — Third generation (2024–2027) →
    • 2025–2027 ✓ Factory-verified

      S on all trims

      ⛭ GM factory document — 2025 gmc acadia fleet order guide, p.8.
      ⛭ GM factory document — 2026 gmc acadia fleet order guide, p.8.
      ⛭ GM factory document — 2027 gmc acadia fleet order guide, p.10.
    Sierra 1500 — Next-Generation (2027) →
    • 2027 ✓ Factory-verified

      all trims: S

      ⛭ GM factory document — 2027 gmc next generation sierra 1500 retail and fleet fleet order guide, p.1.
      ⛭ GM factory document — 2027 gmc next generation sierra 1500 retail and fleet fleet order guide rpo codes, p.1.
    Terrain — Third generation (2025–2027) →
    • 2025–2027 ✓ Factory-verified

      S on all trims

      ⛭ GM factory document — 2025 gmc next generation terrain fleet order guide, p.3.
      ⛭ GM factory document — 2026 gmc next generation terrain fleet order guide, p.5.
      ⛭ GM factory document — 2027 gmc terrain fleet order guide, p.5.

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

    RPOARCHIVE

    A factory-sourced reference to GM Regular Production Option codes, 1960–2027. Every code carries a confidence grade and, where the factory documents it, a citation to the exact GM factory document and page.

    Reference

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    Provenance

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    Independent reference work — not affiliated with or endorsed by General Motors. “GM,” “Chevrolet,” “Pontiac,” “Oldsmobile,” “Buick,” “Cadillac,” “GMC,” “Saturn,” and “Hummer” are trademarks of their respective owners, used nominatively to identify the vehicles this data describes. No GM logos or emblems are reproduced.

    Data compiled from GM Heritage factory documentation and cross-referenced public sources. Generated from a curated, versioned dataset.