- 2019 Confirmed
SLT-1 with the All Terrain (GM Authority's 2019 interior colors page); GM's change list calls it Ebony; the April 2018 guide does not print it; 2019: GM Authority 2019 changes page (GM's RPO change list)
H2U Factory-verified
Also described as Interior trim, leather-appointed, Jet BlackInterior trim, Jet Black, perforated leather-appointed, Denali logo
Also documented for BuickCadillacChevrolet
Documented applications
- 2015–2017, 2019, 2021–2022 Factory-verified
2015–2016 guides: SLT trim; the upfitter lists read level 3; 2021 from the upfitter list GM files for 2021 and 2022
- 2019 Factory-verified
Denali; front bucket seats (AR9)
This page aggregates every documented appearance of H2U in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.