AKK Factory-verified

Buick · Regular Production Option

Glass, acoustic, laminated windshield

Years 2012, 2014, 2016–19, 2025–27 Models 6 Factory citations 19

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Also described as Glass, acoustic, laminatedGlass, windshield, acoustic laminatedWindshield, acoustic laminated glass

Also documented for Cadillac Chevrolet GMC

Documented applications

Enclave — VSS-S (2025–2027)

2025–2027 Factory-verified

S on all trims

GM factory document — 2025 buick all new enclave fleet order guide, p.5.
GM factory document — 2026 buick enclave fleet order guide, p.5.
GM factory document — 2027 buick enclave fleet order guide, p.5.

Encore — Gamma II (2013–2022)

2014, 2018–2019 Factory-verified

all trims: S; the 2018–2019 guides add windshield

GM factory document — 2014 buick encore fleet order guide wayback, p.3.
GM factory document — 2018 buick encore order guide copy gm authority, p.5, p.20.
GM factory document — 2019 buick encore order guide copy gm authority, p.4, p.18.

Encore GX — VSS-F (2020–2027)

2025–2027 Factory-verified

Preferred, Sport Touring, Avenir: S

GM factory document — 2025 buick encore gx fleet order guide, p.5.
GM factory document — 2026 buick encore gx fleet order guide, p.5.
GM factory document — 2027 buick encore gx fleet order guide, p.6.

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

2016–2019 Factory-verified

all trims: S

GM factory document — 2016 buick envision order guide copy gm authority, p.4, p.14.
GM factory document — 2017 buick envision order guide copy gm authority, p.5, p.18.
GM factory document — 2018 buick envision order guide copy gm authority, p.4, p.17.
GM factory document — 2019 buick envision order guide copy gm authority, p.5, p.20.

Envista — VSS-F (2024–2027)

2025–2026 Factory-verified

all trims: S

GM factory document — 2025 buick envista fleet order guide rpo codes, p.1.
GM factory document — 2025 buick envista fleet order guide, p.5.
GM factory document — 2026 buick envista fleet order guide rpo codes, p.1.
GM factory document — 2026 buick envista fleet order guide, p.5.

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.3.
GM factory document — 2012 buick verano online ordering guide copy gm authority, p.4.

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