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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 / Buick / Code
    DK6 ✓ Factory-verified

    Buick · Regular Production Option

    Console, roof, interior

    Years 1998–05, 2007–09 Models 5 Factory citations 9
    Query this via API →

    Also documented for CadillacChevroletGMCHummerOldsmobilePontiac

    Documented applications

    LaCrosse — W-body / GMX365 (2005–2009) →
    • 2007–2009 ✓ Factory-verified
      ⛭ GM factory document — 2007 buick lacrosse rpo code list, p.1.
      ⛭ GM factory document — 2009 buick lacrosse rpo code list, p.1.
    LeSabre — H-body (1992–1999) →
    • 1998–1999 ✓ Factory-verified
      ⛭ GM factory document — 1998 buick lesabre rpo code list, p.1.
      ⛭ GM factory document — 1999 buick lesabre rpo code list, p.1.
    LeSabre — H-body (2000–2005) →
    • 2000–2002 ✓ Factory-verified
      ⛭ GM factory document — 2000 buick lesabre rpo code list, p.1.
      ⛭ GM factory document — 2002 buick lesabre rpo code list, p.1.
    Rendezvous — U-body / GMT257 (2002–2007) →
    • 2002–2005 ✓ Factory-verified
      ⛭ GM factory document — 2002 buick rendezvous awd rpo code list, p.1.
      ⛭ GM factory document — 2005 buick rendezvous awd rpo code list, p.1.
    Skylark — N-body (1992–1998) →
    • 1998 ✓ Factory-verified
      ⛭ GM factory document — 1998 buick skylark rpo code list, p.1.

    This page aggregates every documented appearance of DK6 in the Buick 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

    • Vehicle lookup
    • Archive
    • Statistics
    • Use in AI tools (API)

    Provenance

    • Methodology
    • Sources & verification
    • How it was built
    • About this project

    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.