HSG ✓ Factory-verified

Buick · Regular Production Option

Interior trim, Ebony seats with Sky Cool Gray and Ebony interior accents, perforated leather-appointed with synthetic suede inserts and piping

Years 2025–27 Models 1 Factory citations 3

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Documented applications

Envision — E2XX (2021–2027) →

• 2025–2027 ✓ Factory-verified

  only in: Sport Touring (1SL); seat A51 front bucket; colour availability varies by paint (see the color and trim page)

  ⛭ GM factory document — 2025 buick envision fleet order guide, p.22.

  ⛭ GM factory document — 2026 buick envision fleet order guide, p.24.

  ⛭ GM factory document — 2027 buick envision fleet order guide, p.24.

Related codes · mentioned in these notes

1SLA51

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