Key, primary foldable, additional foldable

Years 2012, 2014, 2016–19 Models 3 Factory citations 7

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Also described as Keys, ignition, foldable

Also documented for Chevrolet

Documented applications

Cascada — Delta II (2016–2019)

2016–2019 Factory-verified

all trims: S; the 2017–2019 guides read two foldable keys

GM factory document — 2016 buick cascada order guide copy gm authority, p.1, p.5.
GM factory document — 2017 buick cascada order guide copy gm authority, p.2, p.11.
GM factory document — 2018 buick cascada order guide copy gm authority, p.1, p.11.
GM factory document — 2019 buick cascada order guide copy gm authority, p.1, p.10.

Encore — Gamma II (2013–2022)

2014 Factory-verified

all trims: S

GM factory document — 2014 buick encore fleet order guide wayback, p.2.

Verano — Delta II (2012–2017)

2012, 2016 Factory-verified

2016: all trims: S; 2012: GM 2012 ordering guide, all trims: S

GM factory document — 2016 buick verano fleet order guide wayback, p.2.
GM factory document — 2012 buick verano online ordering guide copy gm authority, p.2.

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