- 2016–2017 Factory-verified
2017: 1SD, 1SL, 1SN, 1SP: O, dealer-installed
VAT Factory-verified
Also described as LPO, grille, chrome
Also documented for CadillacChevroletGMC
Documented applications
- 2016 Factory-verified
2016: 1SL, 1SN, 1SP: O (dealer-installed); not with PCJ on 1SP
This page aggregates every documented appearance of VAT in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.