- 2025–2026 Factory-verified
Premium Luxury: O; V-Series: S; V-Series Blackwing: not available
MHS Factory-verified
Also described as Transmission, 10 speed automaticTransmission, 10-speed automatic (10L80)
Also documented for ChevroletGMC
Documented applications
- 2019 Factory-verified
2019: all Luxury, Premium Luxury, Platinum and Sport trims, with LSY, LGX and LGW: S (printed NEW!); from the 2019 CT6 order guide (a GM document)
- 2020 Single-source
GM Authority's LTA engine page names it for the 4.2L twin turbo, and its LGX page gives the 2020 CT6 3.6L a 10 speed MHS; no factory list in the archive shows 2020
- 2022–2023, 2025–2027 Factory-verified
2027: Luxury, Sport, Platinum Luxury, Platinum Sport: S; with L87; GM Authority for 2022
This page aggregates every documented appearance of MHS in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.