Sales package, comfort and convenience

Years 1998–00, 2002–06, 2025–27 Models 8 Factory citations 38

Also described as Package, comfort and convenienceFeatures enhancement packageHeat PackageSales package, comfort and convenience, utility/Suburban feature packageSales package, comfort and securityTransmitter, universal, HomeLink, garage door opener, programmable

Also documented for Cadillac GMC

Documented applications

Avalanche — GMT800 (2002–2006)

2002–2006 Factory-verified

GM factory document — 2002 chevrolet avalanche 2wd rpo code list, p.1.
GM factory document — 2003 chevrolet avalanche 2wd rpo code list, p.1.
GM factory document — 2004 chevrolet avalanche 2wd rpo code list, p.1.
GM factory document — 2005 chevrolet avalanche 2wd rpo code list, p.1.
GM factory document — 2006 chevrolet avalanche 2wd rpo code list, p.1.
GM Heritage factory kit — 2002 Chevrolet Avalanche, p.58.
GM Heritage factory kit — 2005 Chevrolet Avalanche, p.125.

Silverado EV — BT1 (2024–2027)

2025–2027 Factory-verified

includes, 2025: A45, A7K, D53, KCB, KU9, K4C, N38, UQA; 2026: A45, AVK, A7K, AVU, KCB, KU9, N38, UQA; 2027: A45, AVK, A7K, AVU, KCB, KU9, N38, UQA; 2025: S in 3LT, 2SP, 3SP; not offered in 2WT, 5WT, 8WT; 2026: S in 4LT, 3TR, 2SP, 3SP; A in 3LT, 2TR; not offered in 4WT, 5WT, 8WT, 2LT; 2027: S in 3TR; A in 3LT, 2TR; not offered in 4WT, 5WT, 8WT, 2LT; 2026: included and only available with SW3 or SW4; 2027: included and only available with SW3 or SW4; included with SW4

GM factory document — 2025 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 — 2025 chevrolet silverado ev fleet order guide, p.2.
GM factory document — 2026 chevrolet silverado ev fleet order guide, p.2.
GM factory document — 2027 chevrolet silverado ev fleet order guide, p.2.

Silverado — GMT800 (1999–2007)

1999–2000 Factory-verified

GM factory document — 1999 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2000 chevrolet chevy c silverado 2wd rpo code list, p.1.

Silverado HD (T1XX, 2020–2027)

2025–2027 Factory-verified

only in: 2500 HD, 3500 HD, 3500 HD chassis cab

GM factory document — 2025 chevrolet silverado 2500 hd retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2026 chevrolet silverado 2500 hd retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2027 chevrolet silverado 2500 hd 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 — GMT800 (2000–2006)

2000, 2002–2006 Factory-verified

the 2000 list words it as a features enhancement package

GM factory document — 2000 chevrolet chevy suburban 2wd rpo code list, p.1.
GM factory document — 2002 chevrolet chevy suburban 2wd rpo code list, p.1.
GM factory document — 2003 chevrolet chevy suburban 2wd rpo code list, p.1.
GM factory document — 2004 chevrolet chevy suburban 2wd rpo code list, p.1.
GM factory document — 2005 chevrolet chevy suburban 2wd rpo code list, p.1.
GM factory document — 2006 chevrolet chevy suburban 2wd rpo code list, p.1.
GM Heritage factory kit — 2003 Chevrolet Suburban, p.40.
GM Heritage factory kit — 2004 Chevrolet Suburban, p.44.
GM Heritage factory kit — 2005 Chevrolet Suburban, p.138.

Tahoe — GMT400 (1995–1999)

1998–1999 Factory-verified

The 1998 and 1999 Tahoe order guides print it as the Comfort & Security package (heated seats, floor mats, cargo mat, HomeLink, Bilstein shocks); the lists word it for the Suburban ("comfort and convenience, utility/Suburban feature package"), so the lists are not cited, and the Suburban doc reads the code as comfort and convenience

GM Heritage factory kit — 1998 Chevrolet Tahoe, p.41.
GM Heritage factory kit — 1999 Chevrolet Tahoe, p.13.

Tahoe — GMT800 (2000–2006)

2000, 2002–2004 Factory-verified

the 2000 list words it as a features enhancement package; the 2005 and 2006 Tahoe order guides print ZM9 as the HomeLink universal transmitter (the Equipment row), another meaning than the shared list wording, which is not kept for 2005 and 2006

GM factory document — 2000 chevrolet tahoe 2wd rpo code list, p.1.
GM factory document — 2002 chevrolet tahoe 2wd rpo code list, p.1.
GM factory document — 2003 chevrolet tahoe 2wd rpo code list, p.1.
GM factory document — 2004 chevrolet tahoe 2wd rpo code list, p.1.
GM Heritage factory kit — 2002 Chevrolet Tahoe, p.34.
GM Heritage factory kit — 2003 Chevrolet Tahoe, p.33.
2005–2006 Factory-verified

the 2005 order guide prints "Universal transmitter, HomeLink, includes garage door opener, programmable" and the 2006 guide "Universal Home Remote, includes garage door opener, programmable" (included with the CF5 power sunroof); the shared 2005 and 2006 code lists word the code as a comfort and convenience sales package, another meaning than the Tahoe pages, which is not used for these years

GM Heritage factory kit — 2005 Chevrolet Tahoe, p.114.
GM Heritage factory kit — 2006 Chevrolet Tahoe, p.112.

This page aggregates every documented appearance of ZM9 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.