- 2012, 2016 Factory-verified
2016: 1SV, 1SD: S; 2012: 1SD: S (GM 2012 ordering guide)
DWY Factory-verified
Also documented for Chevrolet
Documented applications
This page aggregates every documented appearance of DWY in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.