Seat adjuster, front passenger power lumbar

Years 2015–27 Models 10 Factory citations 44

Also described as Seat adjuster, front passenger 2-way power lumbarSeat adjuster, passenger lumbar, powerSeat adjuster, power passenger lumbar controlSeat, front passenger, 2-way power lumbarSeat adjuster, front passenger, 2-way power lumbar

Also documented for Buick Cadillac GMC Oldsmobile Pontiac

Documented applications

Blazer EV (2024–2027)

2025–2027 Factory-verified

GM factory document — 2025 chevrolet blazer ev fleet order guide rpo codes, p.1.
GM factory document — 2026 chevrolet blazer ev fleet order guide rpo codes, p.1.
GM factory document — 2027 chevrolet blazer ev fleet order guide rpo codes, p.1.

Colorado — Second generation (GMT31XX) (2015–2022)

2015–2019, 2021–2022 Factory-verified

2015: Z71: S; LT: O; Base, WT: not offered; 2018 from GM's 2018 Colorado order guide (PDF); 2021 from the upfitter list GM files for 2021 and 2022

GM factory document — 2015 chevrolet colorado fleet order guide wayback, p.2.
GM factory document — 2016 chevrolet canyon colorado electrical body builders manual service manual 2016 en us, p.7.
GM factory document — 2017 chevrolet canyon colorado electrical body builders manual service manual 2017 en us, p.8.
GM factory document — 2019 chevrolet 19 coloradocanyon body builder sm u 2018aug01 1, p.9.
GM factory document — 2022 chevrolet 22 canyon colorado electrical body builder sm en us 2021oct15, p.9.
GM factory document — 2018 chevrolet colorado order guide copy gm authority, p.6.

Colorado — Third generation (2023–2027)

2027 Factory-verified

2027: Z71, ZR2: O; WT, LT, Trail Boss: not offered

GM factory document — 2027 chevrolet colorado fleet order guide, p.36.

Corvette — C8 (2020–2027)

2020–2027 Factory-verified

GM factory document — 2020 chevrolet corvette stingray order guide copy corvetteblogger, p.39.
GM factory document — 2021 chevrolet corvette fleet order guide wayback, p.1.
GM factory document — 2022 chevrolet corvette stingray order guide copy corvetteblogger, p.50.
GM factory document — 2023 chevrolet corvette stingray z06 order guide copy corvetteblogger, p.93.
GM factory document — 2024 chevrolet corvette stingray z06 e ray order guide copy corvetteblogger, p.149.
GM factory document — 2025 chevrolet corvette fleet order guide rpo codes, p.1.
GM factory document — 2026 chevrolet corvette fleet order guide rpo codes, p.1.
GM factory document — 2027 chevrolet corvette fleet order guide rpo codes, p.1.

Equinox EV — Ultium BEV2 (2024–2027)

2025–2027 Factory-verified

2025–2027: A in LT 2, RS (included with and only available with 6K5); not offered in LT 1

GM factory document — 2025 chevrolet new 25my equinox ev fleet order guide rpo codes, p.1.
GM factory document — 2026 chevrolet equinox ev fleet order guide rpo codes, p.1.
GM factory document — 2027 chevrolet equinox ev fleet order guide rpo codes, p.1.
GM factory document — 2025 chevrolet new 25my equinox ev fleet order guide, p.24.
GM factory document — 2026 chevrolet equinox ev fleet order guide, p.23.
GM factory document — 2027 chevrolet equinox ev fleet order guide, p.24.

Equinox — Fourth generation (2025–2027)

2025–2027 Factory-verified

O: ACTIV, RS; not offered: LT; included in, and only available with, ZL4

GM factory document — 2025 chevrolet all new equinox fleet order guide, p.19.
GM factory document — 2026 chevrolet equinox fleet order guide, p.19.
GM factory document — 2027 chevrolet equinox fleet order guide, p.20.

Malibu — ninth generation (2016–2025)

2016 Factory-verified

1LT: O (with WPL); Premier: S; GM's 2016 Malibu order guide

GM factory document — 2016 chevrolet malibu order guide copy gm authority, p.4.
2025 Factory-verified

2LT: S

GM factory document — 2025 chevrolet malibu fleet order guide, p.5.

Suburban — T1XX (2021–2027)

2022–2023, 2025–2027 Factory-verified

2027: LS, LT, Z71: S

GM factory document — 2025 chevrolet new suburban fleet order guide, p.4.
GM factory document — 2026 chevrolet suburban fleet order guide, p.4.
GM factory document — 2027 chevrolet suburban fleet order guide, p.4.
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.9.
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: FL, LS, LT, Z71, Police Package, Special Service: S

GM factory document — 2025 chevrolet new tahoe retail and fleet fleet order guide, p.3.
GM factory document — 2026 chevrolet tahoe retail and fleet fleet order guide, p.4.
GM factory document — 2027 chevrolet tahoe retail and fleet fleet order guide, p.4.
GM factory document — 2027 chevrolet tahoe police package and special service fleet order guide, p.4.
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.9.
GM factory document — 2026 chevrolet suburban tahoe electrical body builder manual service manual 2026 en us, p.5.

Traverse — C1XX (2018–2024)

2018–2019 Factory-verified

LT Leather, RS, Premier, High Country: S

GM factory document — 2018 chevrolet traverse order guide copy gm authority, p.11, p.44.
GM factory document — 2019 chevrolet traverse order guide copy gm authority, p.13, p.61.
2024 Single-source

decoderpo.com's 2024 Traverse Limited order guide page lists it on its Standart Equipment tab (1LS); 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 AT9 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.