NB6 ✓ Factory-verified

Cadillac · Regular Production Option

Emission system, California, Tier 1

Years 1999–00 Models 1 Factory citations 2

Query this via API →

Also documented for BuickChevroletGMCOldsmobilePontiac

Documented applications

Escalade — GMT400-based, GMT435 (1999–2000) →

• 1999–2000 ✓ Factory-verified internal
  ⛭ GM factory document — 1999 cadillac escalade rpo code list, p.1.

  ⛭ GM factory document — 2000 cadillac escalade rpo code list, p.1.

This page aggregates every documented appearance of NB6 in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.