- 2022–2024 Factory-verified
2022–2023: Essence, Premium: O, included with PCJ; 2024: GM Authority's 2024 specifications, Essence, Premium: O
SUB Factory-verified
Documented applications
This page aggregates every documented appearance of SUB in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.