Transmission, 10 speed automatic

Years 2018–20 Models 2 Factory citations 2

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Also documented for Cadillac Chevrolet

Documented applications

Yukon — K2XX (2015–2020)

2018–2019 Factory-verified

2018: Denali: S, new; 2019 from the Graphite Performance Edition (YF0) contents; 2018 from GM's 2018 Yukon order guide

GM factory document — 2019 gmc yukon denali fleet order guide wayback, p.1.
GM factory document — 2018 gmc yukon order guide copy gm authority, p.34.
2020 Single-source

GM Authority's 2020 Yukon page (powertrain table); no factory list or order guide read for 2020; the page does not credit GM for its codes

Yukon XL — K2XX (2015–2020)

2019 Single-source

GM Authority's 2019 Yukon page pairs it with the 6.2L L86 in its Yukon XL rows (2WD and 4WD); no factory list in the corpus prints it

This page aggregates every documented appearance of MF6 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.