KC4 ✓ Factory-verified

Buick · Regular Production Option

Cooling system, engine oil

Years 1998, 2002–07 Models 3 Factory citations 7

Query this via API →

Also described as Engine oil cooling system

Also documented for CadillacChevroletGMCHummerOldsmobilePontiacSaturn

Documented applications

Rendezvous — U-body / GMT257 (2002–2007) →

• 2002–2007 ✓ Factory-verified
  ⛭ GM factory document — 2002 buick rendezvous awd rpo code list, p.1.

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

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

Skylark — N-body (1992–1998) →

• 1998 ✓ Factory-verified
  ⛭ GM factory document — 1998 buick skylark 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 KC4 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.