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