Transmission, 6 speed automatic

Years 2009, 2014–19 Models 4 Factory citations 6

Also described as Transmission, 6 speed automatic, electronically controlled, with overdriveTransmission, automatic, 6 speed, HMD, X23F

Also documented for Buick Pontiac Saturn

Documented applications

Cruze — first generation (2011–2016)

2014, 2016 Factory-verified

2014: 1SD, 1FL, 1SF: S; 2016: 1SD, 1SF: S; the automatic paired with the 1.4L turbo

GM factory document — 2014 chevrolet cruze fleet order guide wayback, p.4.
GM factory document — 2016 chevrolet cruze limited fleet order guide wayback, p.4.

Malibu — Epsilon II (2008–2012)

2009 Factory-verified

GM factory document — 2009 chevrolet malibu rpo code list, p.1.

Sonic — first generation (2012–2020)

2017–2019 Factory-verified

2017–2018: LT automatic: O, Premier automatic: S; 2019: every automatic: S; with the LUV 1.4L turbo

GM factory document — 2017 chevrolet sonic order guide copy gm authority, p.63.
GM factory document — 2018 chevrolet sonic order guide copy gm authority, p.69.
GM factory document — 2019 chevrolet sonic order guide may 4 2018 copy gm authority, p.62.

Trax — first US generation (2015–2022)

2015 Single-source

GM Authority's 2016 changes article says MNK replaced the 2015 Trax's MH8 and MHB 6 speed automatics; no GM document for 2015

This page aggregates every documented appearance of MH8 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.