NK4 ✓ Factory-verified

Buick · Regular Production Option

Steering wheel, sport, leather

Years 2005–07 Models 2 Factory citations 5

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Also described as Steering wheel, sport leather

Also documented for CadillacChevroletOldsmobilePontiacSaturn

Documented applications

Lucerne — G-body (2006–2011) →

• 2006–2007 ✓ Factory-verified
  ⛭ GM factory document — 2006 buick lucerne rpo code list, p.1.

  ⛭ GM factory document — 2007 buick lucerne rpo code list, p.1.

Terraza — U-body / GMT201 (2005–2007) →

• 2005–2007 ✓ Factory-verified
  ⛭ GM factory document — 2005 buick terraza rpo code list, p.1.

  ⛭ GM factory document — 2006 buick terraza rpo code list, p.1.

  ⛭ GM factory document — 2007 buick terraza rpo code list, p.1.

This page aggregates every documented appearance of NK4 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.