- 2016–2019 Factory-verified
premium paint; not on 1SV; touch-up paint WA-519F; letter I in the code as GM prints it; GM Authority's 2020 changes page lists it as dropped for 2020
GIY Factory-verified
Documented applications
This page aggregates every documented appearance of GIY in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.