Diamond Edition, standard equipment package

Years 1987, 1995–98, 2000, 2018–19, 2021–22 Models 11 Factory citations 16

Also described as Package, option 08Preferred equipment group 1SHPreferred equipment group 2, wagonEquipment group 1SH, DieselPreferred equipment group 1Option package 1SHEquipment group 1SH, ACTIV CVTEquipment group 1SH, ACTIV

Also documented for Buick Cadillac GMC

Documented applications

Astro — Second generation (1995–2005)

2000 Factory-verified

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

Beretta — L-body (1987–1996)

1995–1996 Factory-verified

Z26 base group; the 1995 order guide (p.12, model 1LW37 Beretta Z26 coupe) prints the group as ISH, an I/1 swap, named here as printed

GM Heritage factory kit — 1995 Chevrolet Beretta, p.12.
GM Heritage factory kit — 1996 Chevrolet Beretta, p.10.

Blazer — S-10 second generation (1995–2005)

2000 Factory-verified

GM factory document — 2000 chevrolet blazer 4wd rpo code list, p.1.

Caprice — fourth generation, B-body (1991–1996)

1995 Factory-verified

only in: wagon (1BL35); the page prints ISH

GM Heritage factory kit — 1995 Chevrolet Caprice, p.9.

Cavalier — third generation (1995–2005)

1995, 1997–1998 Factory-verified

LS sedan

GM Heritage factory kit — 1995 Chevrolet Cavalier, p.12.
GM Heritage factory kit — 1998 Chevrolet Cavalier, p.41.

Cruze — second generation (2016–2019)

2018–2019 Factory-verified

automatic transmission; sedan and hatch (1BT69, 1BT68)

GM factory document — 2018 chevrolet cruze order guide copy gm authority, p.1, p.9.
GM factory document — 2019 chevrolet cruze order guide june 1 2018 copy gm authority, p.1, p.6.

Monte Carlo — fifth generation, W-body (1995–1999)

1998 Factory-verified

only in: LS; 1998 guide. The 1995 LS page prints 1SH next to 1SF without a name, so 1995 is left out.

GM Heritage factory kit — 1998 Chevrolet Monte Carlo, p.9.

Nova — NUMMI (1985–1988)

1987 Factory-verified

Nova CL option package 3, from the notchback page (the hatchback page's codes are illegible)

GM Heritage factory kit — 1987 Chevrolet Nova, p.10.

S-10 pickup — Second generation (1994–2004)

2000 Factory-verified

GM factory document — 2000 chevrolet s10 pickup 4wd rpo code list, p.1.

Spark — M400 (2016–2022)

2018–2019 Factory-verified

ACTIV with the CVT (model 1DQ48); the years come from the column headings of the guides (the 2017 guide has no ACTIV column); 2018 from GM's 2018 order guide

GM factory document — 2018 chevrolet spark order guide copy gm authority, p.1.
GM factory document — 2019 chevrolet spark order guide copy gm authority, p.1.
2021–2022 Single-source

ACTIV; the transmission is not named; GM Authority's 2021 interior color and trim page and its 2022 Blue Glow article print the ACTIV with 1SG and 1SH (neither credits GM)

Venture — U-body minivan (1997–2005)

1997–1998 Factory-verified

equipment group; the kit order guides name it in their column headings or in option requirements, and the Venture service lists do not print it; GM's lists give the code this option number for other vehicles.

GM Heritage factory kit — 1997 Chevrolet Venture, p.47.
GM Heritage factory kit — 1998 Chevrolet Venture, p.25.

This page aggregates every documented appearance of 1SH in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.