- 2018–2021 Factory-verified
premium paint; 2018: not on base; no charge on Avenir from 2019; dropped for 2022; 2018: GM order guide via GM Authority; 2019–2020: GM Authority color tables; 2021: GM Authority's article on the three colors dropped for 2022 and its 2022 changes page
G9K Factory-verified
Also documented for CadillacChevroletGMC
Documented applications
- 2018–2019 Factory-verified
premium paint; not on Base
This page aggregates every documented appearance of G9K in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.