- 2015–2017, 2019, 2021–2022 Factory-verified
2015–2016 guides: Canyon trim; the upfitter lists read level 1; 2021 from the upfitter list GM files for 2021 and 2022
H2R Factory-verified
Also described as Interior trim, cloth, Jet Black and Dark AshInterior trim, Jet Black and Dark Ash, cloth, base
Also documented for Chevrolet
Documented applications
- 2015, 2018–2019 Factory-verified
Sierra (1SA) 40/20/40 split-bench (AE7); 2018: GM's 2018 Sierra 2500HD order guide; 2019: GM's 2019 Sierra 3500HD order guide
- 2014, 2016–2019 Factory-verified
base Sierra (1SA) 40/20/40 bench (AE7); the 2016 and later guides name the color Dark Ash seats with Jet Black accents.
This page aggregates every documented appearance of H2R in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.