Tires, P235/50R18 all-season, blackwall

Years 2015 Models 1 Factory citations 1

Also documented for Chevrolet

Documented applications

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

2015 Factory-verified

2015: 1SP FWD: S; 1SB, 1SL FWD: O, standard with LFX

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

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