ZX1 Factory-verified

Chevrolet · Regular Production Option

Seating arrangement, driver only, high back

Years 1970, 1972, 1992–94, 1996–10, 2014–18, 2022–27 Models 5 Factory citations 34

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Also described as Export Procedure #1 (1970 Baltimore El Camino Export)Export Procedure #1

Also documented for GMC

Documented applications

Chevelle / El Camino

1970 Single-source

footnote-flagged in source (Canada/export, build-sheet/tag-only, documentation-only, or package base engine not reported as an option — see chevellestuff legend)

1972 Single-source

Price/count n/a (CAC only)

Astro — First generation (1985–1994)

1992–1994 Factory-verified

cargo van.

GM Heritage factory kit — 1992 Chevrolet Astro Van, p.33.
GM Heritage factory kit — 1993 Chevrolet Astro Van, p.29.
GM Heritage factory kit — 1994 Chevrolet Astro Van, p.25.

Express — GMT600 (1996–2002)

1996–2002 Factory-verified

GM factory document — 1998 chevrolet express rpo code list, p.1.
GM factory document — 1999 chevrolet express rpo code list, p.1.
GM factory document — 2000 chevrolet express rpo code list, p.1.
GM factory document — 2001 chevrolet express rpo code list, p.1.
GM factory document — 2002 chevrolet express rpo code list, p.1.
GM Heritage factory kit — 1996 Chevrolet G Van, p.53.
GM Heritage factory kit — 1997 Chevrolet Express, p.68.

Express — GMT610 (2003–2027)

2003–2010, 2014–2018, 2022–2027 Factory-verified

the 2025–2027 guides read Seating arrangement, driver-only high-back bucket; O: Cargo 1WT, Cutaway 1WT, Cutaway 2WT (2025–2026); in the 2025–2027 guides only in the Cargo and Cutaway guides

GM factory document — 2003 chevrolet express rpo code list, p.1.
GM factory document — 2004 chevrolet express awd rpo code list, p.1.
GM factory document — 2005 chevrolet express awd rpo code list, p.1.
GM factory document — 2006 chevrolet express awd rpo code list, p.1.
GM factory document — 2007 chevrolet express awd rpo code list, p.1.
GM factory document — 2008 chevrolet express rpo code list, p.1.
GM factory document — 2009 chevrolet express rpo code list, p.1.
GM factory document — 2010 chevrolet gh van elec 1 7 d1 100813, p.18.
GM factory document — 2014 chevrolet gh van elec bbm si brief, p.9.
GM factory document — 2015 chevrolet express savana electrical body builders manual service manual 2015 en us, p.20.
GM factory document — 2016 chevrolet express savana electrical body builders manual service manual 2016 en us, p.14.
GM factory document — 2017 chevrolet express savana electrical body builders manual service manual 2017 en us, p.12.
GM factory document — 2018 chevrolet 18 express savana bodybuilders sm 2017nov06, p.18.
GM factory document — 2022 chevrolet 22 express savana electrical body builder sm en us 2021oct12, p.15.
GM factory document — 2023 chevrolet 23 express savana body builder sm en us 2022sep13, p.16.
GM factory document — 2024 chevrolet 24 express savana body builder manual 18553161 2023oct26, p.16.
GM factory document — 2025 chevrolet my25 express savana electrical bbm, p.14.
GM factory document — 2025 chevrolet express cargo fleet order guide, p.9.
GM factory document — 2025 chevrolet express cutaway fleet order guide, p.11.
GM factory document — 2026 chevrolet my26 express savana electrical bbm, p.14.
GM factory document — 2026 chevrolet express cargo fleet order guide, p.10.
GM factory document — 2026 chevrolet express cutaway fleet order guide, p.12.
GM factory document — 2027 chevrolet express cargo fleet order guide, p.9.
GM factory document — 2027 chevrolet express cutaway fleet order guide, p.7.

This page aggregates every documented appearance of ZX1 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.