Paint, Black Onyx

Years 2016–19 Models 2 Factory citations 4

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Also documented for Cadillac Chevrolet GMC

Documented applications

LaCrosse — E2XX, 3rd gen (2017–2019)

2017–2019 Factory-verified

2019: not on Sport Touring or Avenir

GM factory document — 2017 buick lacrosse fleet order guide wayback, p.1.
GM factory document — 2018 buick lacrosse order guide copy gm authority, p.21.
GM factory document — 2019 buick lacrosse order guide copy gm authority, p.31.

Regal — Epsilon II, 5th gen (2011–2017)

2016 Factory-verified

2016: touch-up WA-8555; not on GS (1SX)

GM factory document — 2016 buick regal order guide copy gm authority, p.27.

This page aggregates every documented appearance of GBA in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.