ATZ Factory-verified

Chevrolet · Regular Production Option

Seat, rear, delete

Years 1998–00, 2003–09, 2015–19, 2021–23, 2025–26 Models 11 Factory citations 31

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Also described as Rear seat, deleteSeat, rear, noneSeat delete, rearSeat delete, second rowSeat, rear, not installedSeats, 3rd row, delete

Also documented for Buick Cadillac GMC Oldsmobile

Documented applications

Astro — Second generation (1995–2005)

2000, 2004, 2005 Factory-verified

2000 list reads "Seat, Right Rear, Delete".

GM factory document — 2000 chevrolet astro 2wd rpo code list, p.1.
GM factory document — 2004 chevrolet astro 2wd rpo code list, p.1.
GM factory document — 2005 chevrolet astro 2wd rpo code list, p.1.

Bolt EV — first generation (2017–2023)

2023 Factory-verified

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: Base: S; WT: O; LT, Z71: not offered; extended cab only; requires B38; 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.

Silverado Medium Duty (GM515, 2019–2026)

2025–2026 Factory-verified

GM factory document — 2025 chevrolet silverado 4500 hd 5500 hd and 6500 hd fleet order guide rpo codes, p.1.
GM factory document — 2026 chevrolet silverado 4500 hd 5500 hd and 6500 hd fleet order guide rpo codes, p.1.

Silverado — T1XX (2019–2026)

2026 Factory-verified

GM factory document — 2026 chevrolet silverado 1500 retail and fleet fleet order guide rpo codes, p.1.

Suburban — GMT400 (1992–1999)

1998–1999 Factory-verified

GM factory document — 1998 chevrolet chevy suburban 2wd rpo code list, p.1.
GM factory document — 1999 chevrolet chevy suburban 2wd rpo code list, p.1.

Suburban — T1XX (2021–2027)

2022–2023 Factory-verified

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.

Tahoe — GMT400 (1995–1999)

1998–1999 Factory-verified

GM factory document — 1998 chevrolet tahoe 2wd rpo code list, p.1.
GM factory document — 1999 chevrolet tahoe 2wd rpo code list, p.1.

Tahoe — T1XX (2021–2027)

2022–2023 Factory-verified

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.

TrailBlazer — GMT360 (2002–2009)

2003–2009 Factory-verified

GM Heritage factory kit — 2003 Chevrolet Trailblazer, p.34.
GM factory document — 2003 chevrolet trailblazer 2wd rpo code list, p.1.
GM factory document — 2004 chevrolet trailblazer 2wd rpo code list, p.1.
GM factory document — 2005 chevrolet trailblazer 2wd rpo code list, p.1.
GM factory document — 2006 chevrolet trailblazer 2wd rpo code list, p.1.
GM factory document — 2007 chevrolet trailblazer 2wd rpo code list, p.1.
GM factory document — 2008 chevrolet trailblazer 2wd rpo code list, p.1.
GM factory document — 2009 chevrolet trailblazer 2wd rpo code list, p.1.

Venture — U-body minivan (1997–2005)

2003, 2005 Factory-verified

fleet and government order types only; the service lists do not print it.

GM Heritage factory kit — 2003 Chevrolet Venture, p.103.
GM Heritage factory kit — 2005 Chevrolet Venture, p.95.

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