ZY1 Factory-verified

GMC · Regular Production Option

Color combination, solid

Years 1983–91, 1998–06, 2009, 2014–18, 2022, 2024–27 Models 21 Factory citations 95

Query this via API →

Also described as Paint, solidPaint scheme, solid

Also documented for Buick Cadillac Chevrolet Hummer Oldsmobile

Documented applications

Envoy — GMT360 (2002–2009)

2003, 2004 Factory-verified

GM factory document — 2003 gmc envoy 2wd rpo code list, p.1.
GM factory document — 2004 gmc envoy xuv rpo code list, p.1.

Jimmy (full-size) — Square body (1983–1991)

1983–1986, 1990 Factory-verified

the 1991 page prints 2Y1, so 1991 is left out; shared square-body platform code; cited from the Chevrolet Blazer kit

GM Heritage factory kit — 1983 Chevrolet Blazer, p.7.
GM Heritage factory kit — 1984 Chevrolet Blazer RV Full Size, p.15.
GM Heritage factory kit — 1985 Chevrolet Blazer RV Full Size, p.9.
GM Heritage factory kit — 1986 Chevrolet Blazer, p.9.
GM Heritage factory kit — 1990 Chevrolet Blazer, p.15.

Jimmy — second generation (1995–2001)

1998–2000 Factory-verified

GM factory document — 1998 gmc jimmy 4wd rpo code list, p.1.
GM factory document — 1999 gmc jimmy 4wd rpo code list, p.1.
GM factory document — 2000 gmc jimmy 4wd rpo code list, p.1.

Jimmy — first generation (1983–1994)

1983–1985, 1987–1989 Factory-verified

1986 is left out: the 1986 joint pages name ZY1 only in a color-page sentence, a stripe-color chart heading and other options' remarks, and its option line is on a Chevrolet-only page; the merged S-10 Blazer doc leaves 1983 out; shared S/T platform code; cited from the joint S-10/15 Blazer/Jimmy pages of the S-10 Blazer kit

GM Heritage factory kit — 1983 Chevrolet S 10 Blazer, p.5.
GM Heritage factory kit — 1984 Chevrolet S 10 Blazer, p.5.
GM Heritage factory kit — 1985 Chevrolet S 10 Blazer, p.13.
GM Heritage factory kit — 1987 Chevrolet S 10 Blazer, p.42.
GM Heritage factory kit — 1988 Chevrolet S 10 Blazer, p.8.
GM Heritage factory kit — 1989 Chevrolet Blazer, p.17.

Safari — First generation (1985–1994)

1990 Factory-verified

shared M-body code; cited from the joint Astro/Safari pages of the Astro kits.

GM Heritage factory kit — 1990 Chevrolet Astro Van, p.7.

Safari — Second generation (1995–2005)

1998–2004 Factory-verified

GM factory document — 1998 gmc safari 2wd rpo code list, p.1.
GM factory document — 1999 gmc safari 2wd rpo code list, p.1.
GM factory document — 2000 gmc safari 2wd rpo code list, p.1.
GM factory document — 2001 gmc safari 2wd rpo code list, p.1.
GM factory document — 2002 gmc safari 2wd rpo code list, p.1.
GM factory document — 2003 gmc safari 2wd rpo code list, p.1.
GM factory document — 2004 gmc safari 2wd rpo code list, p.1.

Savana — GMT600 (1996–2002)

2000 Factory-verified

GM factory document — 2000 gmc savana rpo code list, p.1.

Savana — GMT610 (2003–2027)

2003, 2014–2018, 2022, 2024–2027 Factory-verified

the 2003 list reads Color Combination - Solid and the 2024 and later Upfitter lists add medium duty only; S: Cargo 1WT, Cutaway 1WT, Cutaway 2WT (2025–2026), Passenger 1LS, Passenger 1LT

GM factory document — 2003 gmc savana rpo code list, p.1.
GM factory document — 2014 chevrolet gh van elec bbm si brief, p.9.
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 — 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 gmc savana cargo fleet order guide, p.28.
GM factory document — 2025 gmc savana cutaway fleet order guide, p.32.
GM factory document — 2025 gmc savana passenger fleet order guide, p.21.
GM factory document — 2026 chevrolet my26 express savana electrical bbm, p.14.
GM factory document — 2026 gmc savana cargo fleet order guide, p.30.
GM factory document — 2026 gmc savana cutaway fleet order guide, p.35.
GM factory document — 2026 gmc savana passenger fleet order guide, p.23.
GM factory document — 2027 gmc savana cargo fleet order guide, p.27.
GM factory document — 2027 gmc savana cutaway fleet order guide, p.18.
GM factory document — 2027 gmc savana passenger fleet order guide, p.21.

Sierra — GMT400 (1988–2000)

1998–2000 Factory-verified

GM factory document — 1998 gmc gmc c pickup 2wd rpo code list, p.1.
GM factory document — 1999 gmc gmc c pickup 2wd rpo code list, p.1.
GM factory document — 2000 gmc gmc c pickup 2wd rpo code list, p.1.

Sierra — GMT800 (1999–2007)

1999–2000, 2003–2004 Factory-verified

GM factory document — 1999 gmc gmc c sierra 2wd rpo code list, p.1.
GM factory document — 2000 gmc gmc c sierra 2wd rpo code list, p.1.
GM factory document — 2003 gmc gmc c sierra 2wd rpo code list, p.1.
GM factory document — 2004 gmc gmc c sierra 2wd rpo code list, p.1.

Sierra — GMT900 (2007–2013)

2009 Factory-verified

GM factory document — 2009 gmc sierra 2wd rpo code list, p.1.

Sierra HD — GMT800 (2001–2007)

2003–2004 Factory-verified

GM factory document — 2003 gmc gmc c sierra 2wd rpo code list, p.1.
GM factory document — 2004 gmc gmc c sierra 2wd rpo code list, p.1.

Sierra HD — GMT900 (2007–2014)

2014 Factory-verified

GM factory document — 2014 gmc sierra 2500hd fleet order guide wayback, p.1.
GM factory document — 2014 gmc sierra 3500hd fleet order guide wayback, p.1.

Sierra — Square body (1983–1991)

1983–1987 Factory-verified

shared platform code; cited from the square-body C/K pickup kits

GM Heritage factory kit — 1983 Chevrolet Truck, p.37.
GM Heritage factory kit — 1984 Chevrolet Truck, p.36.
GM Heritage factory kit — 1985 Chevrolet Truck, p.61.
GM Heritage factory kit — 1986 Chevrolet Truck, p.167.
GM Heritage factory kit — 1987 Chevrolet Truck, p.50.

Sonoma — first generation (1982–1993)

1983–1990 Factory-verified

shared S-series code; cited from the joint S-10/S-15 pages of the S-10 kits

GM Heritage factory kit — 1983 Chevrolet S 10, p.34.
GM Heritage factory kit — 1984 Chevrolet S 10, p.13.
GM Heritage factory kit — 1985 Chevrolet S 10, p.20.
GM Heritage factory kit — 1986 Chevrolet S 10, p.12.
GM Heritage factory kit — 1987 Chevrolet S 10, p.19.
GM Heritage factory kit — 1988 Chevrolet S 10, p.30.
GM Heritage factory kit — 1989 Chevrolet S 10, p.23.
GM Heritage factory kit — 1990 Chevrolet S 10, p.21.

Sonoma — second generation (1994–2004)

1998–2000, 2003–2004 Factory-verified

GM factory document — 1998 gmc sonoma pickup 4wd rpo code list, p.1.
GM factory document — 1999 gmc sonoma pickup 4wd rpo code list, p.1.
GM factory document — 2000 gmc sonoma pickup 4wd rpo code list, p.1.
GM factory document — 2003 gmc sonoma pickup 4wd rpo code list, p.1.
GM factory document — 2004 gmc sonoma pickup 4wd rpo code list, p.1.

Suburban — GMT400 (1992–1999)

1998–1999 Factory-verified

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

Suburban — Square body (1983–1991)

1983–1991 Single-source

shared square-body platform code; cited from the Chevrolet Suburban kit; 1991 rests on the Chevrolet-only 1991 Suburban book, so the row is single-source

GM Heritage factory kit — 1983 Chevrolet Suburban, p.13.
GM Heritage factory kit — 1984 Chevrolet Suburban, p.16.
GM Heritage factory kit — 1985 Chevrolet Suburban, p.15.
GM Heritage factory kit — 1986 Chevrolet Suburban, p.15.
GM Heritage factory kit — 1987 Chevrolet Suburban, p.21.
GM Heritage factory kit — 1988 Chevrolet Suburban, p.15.
GM Heritage factory kit — 1989 Chevrolet Suburban, p.13.
GM Heritage factory kit — 1990 Chevrolet Suburban, p.18.
GM Heritage factory kit — 1991 Chevrolet Suburban, p.18.

Vandura and Rally — Second generation G-series (1983–1996)

1983, 1984, 1986, 1988–1990 Factory-verified

shared G-van platform code; cited from the Chevrolet G-Van kit

GM Heritage factory kit — 1983 Chevrolet Vandura, p.12.
GM Heritage factory kit — 1984 Chevrolet G Van, p.14.
GM Heritage factory kit — 1986 Chevrolet G Van, p.21.
GM Heritage factory kit — 1988 Chevrolet Vandura, p.33.
GM Heritage factory kit — 1989 Chevrolet G Van, p.16.
GM Heritage factory kit — 1990 Chevrolet G Van, p.16.

Yukon — GMT400 (1992–1999)

1998–1999 Factory-verified

GM factory document — 1998 gmc yukon 2wd rpo code list, p.1.
GM factory document — 1999 gmc yukon 2wd rpo code list, p.1.

Yukon — GMT800 (2000–2006)

2000, 2003–2006 Factory-verified

the 2000 list words it as a solid paint scheme

GM factory document — 2000 gmc yukon 2wd rpo code list, p.1.
GM factory document — 2003 gmc yukon 2wd rpo code list, p.1.
GM factory document — 2004 gmc yukon 2wd rpo code list, p.1.
GM factory document — 2005 gmc yukon 2wd rpo code list, p.1.
GM factory document — 2006 gmc yukon 2wd rpo code list, p.1.

This page aggregates every documented appearance of ZY1 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.