- 2018–2020 Disputed
Essence, Premium; 2020 disputed: GM Authority's 2020 interior and exterior color tables and its three 2020 first-look articles still list Brandy (HI9 in the interior table), while its 2020 changes page and 2020 Enclave page drop Brandy for 2020; 2018: GM order guide via GM Authority; 2019: GM Authority
HI9 Factory-verified
Also documented for GMC
Documented applications
- 2017–2019 Factory-verified
Essence, Premium; Sport Touring in 2019; the 2018 guide heads its column Jet Black/Brandy
This page aggregates every documented appearance of HI9 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.