QC4 ✓ Factory-verified

Buick · Regular Production Option

Wheel, 16 x 7, aluminum, custom

Years 2005–08 Models 2 Factory citations 3

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Also documented for CadillacChevroletGMCOldsmobile

Documented applications

LeSabre — H-body (2000–2005) →

• 2005 ✓ Factory-verified
  ⛭ GM factory document — 2005 buick lesabre rpo code list, p.1.

Lucerne — G-body (2006–2011) →

• 2006–2008 ✓ Factory-verified
  ⛭ GM factory document — 2006 buick lucerne rpo code list, p.1.

  ⛭ GM factory document — 2008 buick lucerne rpo code list, p.1.

This page aggregates every documented appearance of QC4 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.