LPO, tires, 20 inch, P245/40R20

Years 2015–16 Models 1 Factory citations 1

Documented applications

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

2015–2016 Factory-verified

2015: 1SB, 1SL FWD, 1SP FWD: O (dealer-installed); with SEJ; 2016: also on 1SR (GM Authority 2016 changes)

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

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