- 2016–2019 Factory-verified
2019: 1SD, 1SL, 1SN, 1SP: O, dealer-installed; not with PCH in 2018 or PCZ in 2019
S6W Factory-verified
Also documented for ChevroletGMC
Documented applications
This page aggregates every documented appearance of S6W in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.