Seats, heated rear outboard seating positions

Years 2016–19, 2022–23, 2025–27 Models 4 Factory citations 13

Also described as Seats, heated, second row outboard seatsSeats, heated, second row outboardSeats, heated, rear outboard

Also documented for Cadillac Chevrolet GMC

Documented applications

Enclave — C1XX (2018–2024)

2018, 2022–2023 Factory-verified

Premium, Avenir: S

GM factory document — 2018 buick enclave fleet order guide wayback, p.1.
GM factory document — 2022 buick enclave order guide copy nhtsa docket, p.6, p.24.
GM factory document — 2023 buick enclave order guide copy autoevolution wayback, p.5, p.22.

Enclave — VSS-S (2025–2027)

2025–2027 Factory-verified

Preferred, Sport Touring: not offered; Avenir: S

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.

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

2016–2019 Factory-verified

2019: 1SL, 1SN, 1SP: S

GM factory document — 2016 buick envision order guide copy gm authority, p.3, p.13.
GM factory document — 2017 buick envision order guide copy gm authority, p.4, p.16.
GM factory document — 2018 buick envision order guide copy gm authority, p.4, p.16.
GM factory document — 2019 buick envision order guide copy gm authority, p.5, p.18.

Envision — E2XX (2021–2027)

2025–2027 Factory-verified

2027: Avenir: S

GM factory document — 2025 buick envision fleet order guide rpo codes, p.1.
GM factory document — 2027 buick envision fleet order guide rpo codes, p.1.
GM factory document — 2027 buick envision fleet order guide, p.4.

This page aggregates every documented appearance of KA6 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.