- 2017–2019 Factory-verified
touch-up paint WA-441B; extra charge, none on Platinum; not with the Cinnamon interior; new for 2017; 2018 and 2019 from the 2018 and 2019 CT6 order guides (GM documents)
GMU Factory-verified
Also documented for BuickChevroletGMC
Documented applications
- 2017–2019 Factory-verified
touch-up WA-441B; extra charge except on Platinum; the 2017 list prints Pepperdust Metallic (441B); GM Authority for 2017–2019
- 2017 Confirmed
extra charge; new for the model year, not available at start of production (GM Authority 2017 XTS changes)
This page aggregates every documented appearance of GMU in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.