- 2016–2018 Confirmed
LT; front bucket seats (A51); requires PDB; every guide's color and trim page (2016 and 2017 captures, GM's 2018 order guide) prints H811, the footnote mark 1 (requires PDB) attached, and no page prints the bare code, so the row carries no factory citation
H81 Confirmed
Also documented for GMC
Documented applications
This page aggregates every documented appearance of H81 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.