- 2020 Confirmed
premium paint; not with the Dark Galvanized interior; dropped for 2021; 2020: GM Authority's 2020 color table and first-look article (its 2020 Enclave page, read with each code on the line before the item it belongs to, agrees)
GCG Confirmed
Also documented for Chevrolet
Documented applications
This page aggregates every documented appearance of GCG in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.