B18 ✓ Factory-verified

Cadillac · Regular Production Option

Ornamentation, interior, deluxe

Years 2006–09 Models 3 Factory citations 5

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Also documented for BuickChevroletOldsmobilePontiac

Documented applications

CTS — Sigma / GMX320 (2003–2007) →

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

  ⛭ GM factory document — 2007 cadillac cts rpo code list, p.1.

DTS — G-body (2006–2011) →

• 2008 ✓ Factory-verified
  ⛭ GM factory document — 2008 cadillac dts rpo code list, p.1.

STS — Sigma (2005–2011) →

• 2007–2009 ✓ Factory-verified
  ⛭ GM factory document — 2007 cadillac sts rpo code list, p.1.

  ⛭ GM factory document — 2009 cadillac sts rpo code list, p.1.

This page aggregates every documented appearance of B18 in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.