Transmission, 9 speed automatic

Years 2018–20 Models 2 Factory citations 2

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Also documented for Chevrolet

Documented applications

Envision — D2XX, imported from China (2016–2020)

2020 Single-source

with LTG; 2020 rests only on GM Authority's 2020 page, which names M3D; GM's 2019 guide prints M3T for the LTG's 9 speed

Regal — E2XX (2018–2020)

2018–2019 Factory-verified

only in: Sportback; 2019: Regal, Preferred, Preferred II, Essence, Avenir: S (2019 Sportback order guide)

GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1, p.5.
GM factory document — 2019 buick regal sportback order guide copy gm authority, p.8.

This page aggregates every documented appearance of M3D in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.