Infinity Roof with removable transparent Sky Panels

Years 2022–26 Models 2 Factory citations 6

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Also documented for Chevrolet

Documented applications

Hummer EV Pickup (2022–2027)

2022–2026 Factory-verified

2022–2023: in the Edition 1 package (FH1); 2024: in the Omega Edition; GM Authority 2024 changes page

GM factory document — 2025 gmc hummer ev pickup fleet order guide rpo codes, p.1.
GM factory document — 2026 gmc hummer ev pickup fleet order guide rpo codes, p.1.
GM factory document — 2025 gmc hummer ev pickup fleet order guide, p.8.
GM factory document — 2026 gmc hummer ev pickup fleet order guide, p.10.

Hummer EV SUV — BT1 (2024–2027)

2025–2026 Factory-verified

SUV guide wording: Infinity Roof, with removable transparent Sky Panels, includes 4 storage bags, front I-bar is removable. 2025: O in 1SF, 1SG; 2026: O in 1SF, 1SG; not offered in 3VL.

GM factory document — 2025 gmc hummer ev suv fleet order guide, p.15.
GM factory document — 2026 gmc hummer ev suv fleet order guide, p.19.

This page aggregates every documented appearance of CC3 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.