- 2015–2017 Factory-verified
2015: S on all trims
NKC Factory-verified
Also described as Active noise cancellation, engine
Also documented for BuickChevroletGMC
Documented applications
- 2023, 2026–2027 Factory-verified
2027: V-Series: S
- 2025 Factory-verified
Premium Luxury, Sport: S
This page aggregates every documented appearance of NKC in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.