NKD ✓ Factory-verified

Cadillac · Regular Production Option

Engine sound enhancement, noise control

Years 2017, 2027 Models 2 Factory citations 3

Query this via API →

Also described as Noise control enhancement

Also documented for ChevroletGMC

Documented applications

CT6 — Omega (2016–2020) →

• 2017 ✓ Factory-verified

  Luxury, Premium Luxury: O with UQH; Platinum: S

  ⛭ GM factory document — 2017 cadillac ct6 fleet order guide wayback, p.4.

Escalade IQ — Ultium BEV (2025–2027) →

• 2027 ✓ Factory-verified
  ⛭ GM factory document — 2027 cadillac all electric escalade iq fleet order guide rpo codes, p.1.

  ⛭ GM factory document — 2027 cadillac all electric escalade iql fleet order guide rpo codes, p.1.

Related codes · mentioned in these notes

OSUQH

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