Seat adjuster, driver 2-way power lumbar

Years 2015–27 Models 15 Factory citations 62

Also described as Seat adjuster, power driver lumbar controlLumbar, driver seat, power, 2-waySeat adjuster, driver lumbar, powerSeat, driver, power lumbar controlSeat adjuster, driver, 2-way power lumbarSeat adjuster, driver power lumbar controlSeat adjuster, driver power lumbar

Also documented for Buick Cadillac GMC Pontiac

Documented applications

Blazer — C1XX (2019–2026)

2025–2026 Factory-verified

2LT, 3LT, RS: S; Premier: S (2025 only)

GM factory document — 2025 chevrolet blazer fleet order guide rpo codes, p.1.
GM factory document — 2025 chevrolet blazer fleet order guide, p.4.
GM factory document — 2026 chevrolet blazer fleet order guide rpo codes, p.1.
GM factory document — 2026 chevrolet blazer fleet order guide, p.4.

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.

Bolt EV — first generation (2017–2023)

2023 Factory-verified

the 2023 EUV guide prints the driver 2-way power lumbar without a code (LT: with WPT or 5W4; Premier: S); only in: Bolt EV

GM factory document — 2023 chevrolet 23 bolt ev body builder sm en us 2022aug26, p.8.

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)

2023–2027 Factory-verified

LT, Z71, ZR2: S; WT, Trail Boss: O

GM factory document — 2023 chevrolet 23colorado electrical body builder, p.10.
GM factory document — 2024 chevrolet 24colorado electrical body builder manual 18272478 2023oct09, p.10.
GM factory document — 2025 chevrolet colorado fleet order guide, p.32.
GM factory document — 2026 chevrolet colorado fleet order guide, p.36.
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: S in LT 2 (included with and only available with Y19); S in RS; A in LT 1 (included with and only available with Y19)

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.4.
GM factory document — 2027 chevrolet equinox ev fleet order guide, p.4.

Equinox — Fourth generation (2025–2027)

2025–2027 Factory-verified

S: ACTIV, RS; O: LT; on LT included in, and only available with, ZQ3

GM factory document — 2025 chevrolet all new equinox fleet order guide, p.4.
GM factory document — 2026 chevrolet equinox fleet order guide, p.4.
GM factory document — 2027 chevrolet equinox fleet order guide, p.4.

Malibu — ninth generation (2016–2025)

2016 Factory-verified

LS fleet: O, requires AE8; 1LT, 2LT, Premier: S; GM's 2016 Malibu order guide

GM factory document — 2016 chevrolet malibu order guide copy gm authority, p.3.
2025 Factory-verified

LS fleet: O, only with AE8; RS, 1LT, 2LT: S

GM factory document — 2025 chevrolet malibu fleet order guide, p.4.

Silverado EV — BT1 (2024–2027)

2026–2027 Factory-verified

2026: S in 2LT, 3LT, 2TR; not offered in 4WT, 5WT, 8WT, 4LT, 3TR, 2SP, 3SP; 2027: S in 2LT, 3LT, 2TR; not offered in 4WT, 5WT, 8WT, 3TR; Sierra EV reads "Seat, driver, 2-way power lumbar"

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: 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.

Trailblazer — First generation, VSS-F (2021–2027)

2025–2027 Factory-verified

RS, ACTIV: S; LT: O; included in, and only available with, ZL3

GM factory document — 2025 chevrolet trailblazer fleet order guide, p.4.
GM factory document — 2026 chevrolet trailblazer fleet order guide, p.3.
GM factory document — 2027 chevrolet trailblazer limited fleet order guide, p.4.

Traverse — C1XX (2018–2024)

2018–2019 Factory-verified

LS (1FL), LT Cloth (2FL), LT Cloth, 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

Trax — Second generation, VSS-F (2024–2026)

2025–2026 Factory-verified

2RS, ACTIV: S; the 2025 guide says 2RS has it as standard on vehicles built after 2025-02-02

GM factory document — 2025 chevrolet trax fleet order guide, p.4.
GM factory document — 2026 chevrolet trax fleet order guide, p.4.

This page aggregates every documented appearance of AL9 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.