- 2020, 2025–2026 Factory-verified
CT4 Luxury; Pitch Dark Night center console trim; seat code AQ9; 2020 from GM Authority's 2020 CT4 interior colors page
HMC Factory-verified
Documented applications
This page aggregates every documented appearance of HMC in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.