Interior trim, Granite Drift, premium leather-alternative seating surfaces

Years 2026 Models 2 Factory citations 2

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Documented applications

Hummer EV Pickup (2022–2027)

2026 Factory-verified

seat code A50, front bucket seats with center console; trim groups 3VL, 1SC and 1SD

GM factory document — 2026 gmc hummer ev pickup fleet order guide, p.34.

Hummer EV SUV — BT1 (2024–2027)

2026 Factory-verified

SUV guide wording: Seat trim, premium leather-alternative seating surfaces, front bucket seats (A50), Granite Drift interior. decor levels 3VL, 1SF, 1SG.

GM factory document — 2026 gmc hummer ev suv fleet order guide, p.30.

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