- 2023–2024 Factory-verified
2023: Essence: O, with the Sport Touring Edition (HCR); 2024: GM Authority's 2024 specifications, Essence
QH5 Factory-verified
Documented applications
This page aggregates every documented appearance of QH5 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.