- 2019 Single-source
only in: ATS-V; extra charge; 2019 from GM Authority's 2019 ATS-V exterior colors page
GKK Factory-verified
Also documented for ChevroletGMC
Documented applications
- 2020, 2025 Factory-verified
CT4 only; extra cost; 2020 from GM Authority's 2020 CT4 exterior colors page
- 2025 Factory-verified
only in: CT5 (Premium Luxury, Sport); extra charge; touch-up paint WA-627D
This page aggregates every documented appearance of GKK in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.