Drivetrain, all-wheel drive

Years 2005–06, 2014–19 Models 7 Factory citations 17

Also described as Drivetrain, all-wheel drive, dual clutchDrivetrain, intelligent all-wheel drive with active twin clutchChassis, all wheel drive (AWD)

Also documented for Cadillac Chevrolet GMC Oldsmobile Pontiac Saturn

Documented applications

Encore — Gamma II (2013–2022)

2014, 2018–2019 Factory-verified

only in: AWD; every trim but the 2018–2019 Encore 1SV, which is FWD only

GM factory document — 2014 buick encore fleet order guide wayback, p.4.
GM factory document — 2018 buick encore order guide copy gm authority, p.6, p.22.
GM factory document — 2019 buick encore order guide copy gm authority, p.5, p.20.

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

2016–2019 Factory-verified

1SN, 1SP: S; 1SD, 1SL: S on the all-wheel-drive models (4XY26, 4XZ26)

GM factory document — 2016 buick envision order guide copy gm authority, p.4, p.16.
GM factory document — 2017 buick envision order guide copy gm authority, p.6, p.20.
GM factory document — 2018 buick envision order guide copy gm authority, p.5, p.19.
GM factory document — 2019 buick envision order guide copy gm authority, p.6, p.22.

LaCrosse — E2XX, 3rd gen (2017–2019)

2017–2019 Factory-verified

2019: Essence, Premium, Avenir: S; only in: AWD

GM factory document — 2017 buick lacrosse fleet order guide wayback, p.4.
GM factory document — 2018 buick lacrosse order guide copy gm authority, p.5.
GM factory document — 2019 buick lacrosse order guide copy gm authority, p.8.

LaCrosse — Epsilon II, 2nd gen (2010–2016)

2015 Factory-verified

2015: 1SL AWD, 1SP AWD: S; only in: AWD

GM factory document — 2015 buick lacrosse fleet order guide wayback, p.4.

Regal — E2XX (2018–2020)

2018–2019 Factory-verified

2019: Preferred II, Essence, GS: S (2019 Sportback order guide); the TourX list prints Drivetrain only

GM factory document — 2018 buick regal sportback fleet order guide wayback, p.1, p.5.
GM factory document — 2018 buick regal tourx fleet order guide wayback, p.1.
GM factory document — 2019 buick regal sportback order guide copy gm authority, p.7.

Regal — Epsilon II, 5th gen (2011–2017)

2016 Factory-verified

only in: AWD; 2016: 1SL, 1SN, 1SP, 1SX: S

GM factory document — 2016 buick regal order guide copy gm authority, p.6, p.24.

Terraza — U-body / GMT201 (2005–2007)

2005–2006 Factory-verified

2005 and 2006 only; Wikipedia says all-wheel drive was dropped for 2007

GM factory document — 2005 buick terraza rpo code list, p.1.
GM factory document — 2006 buick terraza rpo code list, p.1.

This page aggregates every documented appearance of F46 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.