Seat adjuster, driver, 4-way power lumbar

Years 2022–27 Models 4 Factory citations 19

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Also described as Driver seat, 4-way power lumbar

Also documented for Buick Cadillac GMC

Documented applications

Silverado EV — BT1 (2024–2027)

2026–2027 Factory-verified

2026: S in 4LT, 3TR, 2SP, 3SP; A in 3LT, 2TR; not offered in 4WT, 5WT, 8WT, 2LT; 2027: S in 3TR; A in 3LT, 2TR; not offered in 4WT, 5WT, 8WT, 2LT; 2026–2027: included and only available with ZM9

GM factory document — 2026 chevrolet silverado ev fleet order guide rpo codes, p.1.
GM factory document — 2027 chevrolet silverado ev fleet order guide rpo codes, p.1.
GM factory document — 2026 chevrolet silverado ev fleet order guide, p.8.
GM factory document — 2027 chevrolet silverado ev fleet order guide, p.8.

Suburban — T1XX (2021–2027)

2022–2023, 2025–2027 Factory-verified

2027: RST, Premier, High Country: S

GM factory document — 2025 chevrolet new suburban fleet order guide, p.10.
GM factory document — 2026 chevrolet suburban fleet order guide, p.10.
GM factory document — 2027 chevrolet suburban fleet order guide, p.10.
GM factory document — 2022 chevrolet 22 suburban tahoe electrical body builder sm u 2021oct08, p.9.
GM factory document — 2023 chevrolet 23 suburban tahoe electrical body builder sm en us 2022sep13, p.10.
GM factory document — 2026 chevrolet suburban tahoe electrical body builder manual service manual 2026 en us, p.5.

Tahoe — T1XX (2021–2027)

2022–2023, 2025–2027 Factory-verified

2027: RST, Premier, High Country: S

GM factory document — 2025 chevrolet new tahoe retail and fleet fleet order guide, p.11.
GM factory document — 2026 chevrolet tahoe retail and fleet fleet order guide, p.11.
GM factory document — 2027 chevrolet tahoe retail and fleet fleet order guide, p.11.
GM factory document — 2022 chevrolet 22 suburban tahoe electrical body builder sm u 2021oct08, p.9.
GM factory document — 2023 chevrolet 23 suburban tahoe electrical body builder sm en us 2022sep13, p.10.
GM factory document — 2026 chevrolet suburban tahoe electrical body builder manual service manual 2026 en us, p.5.

Traverse — Third generation (2024–2027)

2025–2027 Factory-verified

High Country, RS: S; LT, Z71: not offered

GM factory document — 2025 chevrolet traverse fleet order guide, p.5.
GM factory document — 2026 chevrolet traverse fleet order guide, p.6.
GM factory document — 2027 chevrolet traverse fleet order guide, p.6.
2024 Single-source

decoderpo.com's 2024 ALL-NEW Traverse order guide page lists it on its Standart Equipment tab (LS, LT, Z71); the page is a T3 mirror of GM's guide and the repository holds no GM document for 2024

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