Interior trim, leather, level 2, Jet Black

Years 2014–20, 2022–27 Models 7 Factory citations 30

Also described as Interior, Jet Black, perforated leather-appointed, DenaliInterior trim, Jet Black, leather-appointedInterior trim, Jet Black, perforated leather-appointed seating surfaces

Also documented for Buick Cadillac Chevrolet

Documented applications

Acadia — Second generation (C1XX) (2017–2023)

2017–2019 Factory-verified

Denali

GM factory document — 2017 gmc acadia order guide copy gm authority, p.29.
GM factory document — 2018 gmc acadia order guide copy gm authority, p.37.
GM factory document — 2019 gmc acadia order guide copy gm authority, p.39.

Sierra HD — K2XX (2015–2019)

2015, 2018–2019 Factory-verified

SLE (3SA) leather split-bench (AZ3); every year rests on the requirement remark of the leather split-bench seat option, "Requires (AZ3) 40/20/40 split bench front seat and (H1Y) Jet Black leather appointed interior trim" (rule 11(b)); the color and trim pages print only the footnote-digit forms (2015 H1Y2; 2018 H1Y1 and H1Y3), so no page prints the bare code as a trim line

GM factory document — 2015 gmc sierra 2500hd fleet order guide wayback, p.2.
GM factory document — 2018 gmc sierra 2500hd order guide copy gm authority, p.16.
GM factory document — 2019 gmc sierra 2500hd fleet order guide wayback, p.1.

Sierra HD — T1XX (2020–2027)

2025–2027 Factory-verified

SLT (4SA); 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.103.
GM factory document — 2026 gmc sierra 2500 hd retail and fleet fleet order guide, p.99.
GM factory document — 2027 gmc sierra 2500 hd retail and fleet fleet order guide, p.93.

Sierra — K2XX (2014–2019)

2014, 2016–2017 Factory-verified

SLE (3SA) leather-appointed 40/20/40 bench (AZ3).

GM factory document — 2014 gmc sierra 1500 fleet order guide wayback, p.2.
GM factory document — 2016 gmc sierra 1500 fleet order guide wayback, p.2.
GM factory document — 2017 chevrolet sierra silverado electrical body builders manual service manual 2017 en us, p.20.

Sierra — T1XX (2019–2026)

2019–2020, 2022–2026 Factory-verified

the 2025–2026 guides: perforated leather-appointed, SLT (4SA)

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.168.
GM factory document — 2026 gmc sierra 1500 retail and fleet fleet order guide, p.85.

Yukon — T1XX (2021–2027)

2022–2023, 2025–2027 Factory-verified

Elevation: Jet Black with CoreTec / perforated leather-appointed seating in the 2025–2027 guides

GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10.
GM factory document — 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10.
GM factory document — 2025 gmc new yukon denali fleet order guide, p.78.
GM factory document — 2026 gmc yukon denali fleet order guide, p.85.
GM factory document — 2027 gmc yukon fleet order guide, p.74.

Yukon XL — T1XX (2021–2027)

2022–2023, 2025–2027 Factory-verified

Elevation: Jet Black with CoreTec / perforated leather-appointed seating in the 2025–2027 guides

GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.10.
GM factory document — 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.10.
GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.84.
GM factory document — 2026 gmc yukon xl denali fleet order guide, p.85.
GM factory document — 2027 gmc yukon xl fleet order guide, p.76.

This page aggregates every documented appearance of H1Y in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.