LPO, rear spoiler, flush-mount

Years 2015, 2017–19 Models 2 Factory citations 4

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Also documented for Cadillac Chevrolet

Documented applications

LaCrosse — E2XX, 3rd gen (2017–2019)

2017–2019 Factory-verified

2019: Sport Touring: S; Preferred, Essence, Premium: O; color-restricted in 2019

GM factory document — 2017 buick lacrosse fleet order guide wayback, p.3.
GM factory document — 2018 buick lacrosse order guide copy gm authority, p.9.
GM factory document — 2019 buick lacrosse order guide copy gm authority, p.6.

LaCrosse — Epsilon II, 2nd gen (2010–2016)

2015 Factory-verified

2015: 1SB, 1SL, 1SP, 1SR: O (dealer-installed); not with LUK; not for fleet or government orders

GM factory document — 2015 buick lacrosse fleet order guide wayback, p.3.

This page aggregates every documented appearance of SB2 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.