LFX ✓ Factory-verified

Buick · Regular Production Option

Engine, 3.6L V6, spark ignition direct injection, DOHC, VVT, E85 capable

Years 2012, 2015–16 Models 1 Factory citations 1

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Also documented for CadillacChevroletGMC

Documented applications

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

• 2012, 2015–2016 ✓ Factory-verified

  2015: 1SV, 1SL AWD, 1SP, 1SR: S; 1SB, 1SL FWD: O; 304 hp; no E85 capability in the California-emissions states; new for 2012 (GM Authority 2012 RPO list); 2016: standard on 1SB and 1SL (GM Authority 2016 changes)

  ⛭ GM factory document — 2015 buick lacrosse fleet order guide wayback, p.4.

Related codes · mentioned in these notes

1SB1SL1SP1SR1SVFWD

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