Interior trim, cloth, level 2, Gideon / Very Dark Atmosphere

Years 2019–20, 2022–27 Models 4 Factory citations 15

Also described as Interior trim, Dark Walnut/Slate, cloth seating surfacesInterior trim, cloth, level 2, Dark Walnut/Slate

Also documented for Chevrolet

Documented applications

Sierra HD — T1XX (2020–2027)

2025–2027 Factory-verified

SLE (3SA); bench seat AZ3 or bucket seats A50; the name matches the GM Authority 2026 Sierra HD interior colors page

GM factory document — 2025 gmc sierra 2500 hd retail and fleet fleet order guide, p.102.
GM factory document — 2026 gmc sierra 2500 hd retail and fleet fleet order guide, p.98.
GM factory document — 2027 gmc sierra 2500 hd retail and fleet fleet order guide, p.92.

Sierra — T1XX (2019–2026)

2019–2020, 2022–2026 Factory-verified

SLE (3SA) in the 2025–2026 guides; the upfitter lists name the color Gideon/Very Dark Atmosphere

GM factory document — 2019 gmc 19 sierra 1500 body builder feb 20, p.11.
GM factory document — 2020 gmc 20 sierra 1500 electrical body buil 1, p.12.
GM factory document — 2022 gmc 22 sierra 1500 new electrical body builder sm en us 2022jul20, p.12.
GM factory document — 2023 gmc 23 sierra 1500 electrical body builder sm en us 2022oct12, p.11.
GM factory document — 2024 gmc 24 sierra 1500 sm electrical body builder esid 23dec12, p.13.
GM factory document — 2025 gmc my25 sierra 1500 electrical bbm, p.11.
GM factory document — 2025 gmc sierra 1500 retail and fleet fleet order guide, p.167.
GM factory document — 2026 gmc sierra 1500 retail and fleet fleet order guide, p.83.

Yukon — T1XX (2021–2027)

2022–2023 Factory-verified

GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11.
GM factory document — 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11.

Yukon XL — T1XX (2021–2027)

2022–2023 Factory-verified

GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11.
GM factory document — 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.11.

This page aggregates every documented appearance of HV5 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.