Merchandised package, luxury edition

Years 1990–93, 1997–09 Models 17 Factory citations 62

Also described as Sales package, luxury (GMT 425)Package, uplevel trim (CL, later LS)Luxury Edition packagePackage, merchandised, luxury edition

Also documented for Buick Cadillac GMC Hummer Oldsmobile Pontiac Saturn

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 — 2003 Chevrolet Avalanche, p.37.

Avalanche — GMT900 (2007–2013)

2007–2009 Factory-verified

NICB 2007 p.81 names Y91 as the Luxury Edition across several GM lines (a generic code).

GM factory document — 2007 chevrolet avalanche 2wd rpo code list, p.1.
GM factory document — 2008 chevrolet avalanche 2wd rpo code list, p.1.
GM factory document — 2009 chevrolet avalanche 2wd rpo code list, p.1.

C/K pickup — GMT400 (1988–2000)

1998–2000 Factory-verified

GM prints "GMT 425"

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

Lumina APV — U-body (1990–1996)

1990–1993 Factory-verified

only in: Lumina APV passenger van (1UM06); the 1990–1992 kits name it the CL, the 1993 power teams page the LS; the 1995 option-weight pages name the LS package Y91 only inside the B51 and PB2 entries (it includes both), so 1995 is not claimed; 1991 from the options page p.14 (model key, which prints the year 1991) alone; the 1991 models page (p.3) prints 1990 and the contents page (p.2) is not cited

GM Heritage factory kit — 1990 Chevrolet LuminaAPV, p.2, p.12.
GM Heritage factory kit — 1991 Chevrolet LuminaAPV, p.14.
GM Heritage factory kit — 1992 Chevrolet LuminaAPV, p.6.
GM Heritage factory kit — 1993 Chevrolet LuminaAPV, p.4.

Silverado — GMT800 (1999–2007)

2001, 2003–2007 Factory-verified

GM factory document — 2001 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2003 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2007 chevrolet silverado classic 2wd rpo code list, p.1.
GM Heritage factory kit — 2007 Chevrolet Silverado, p.58.

Silverado — GMT900 (2007–2013)

2009 Factory-verified

GM factory document — 2009 chevrolet silverado 2wd rpo code list, p.1.

Silverado HD — GMT900 (2007–2014)

2009 Factory-verified

GM factory document — 2009 chevrolet silverado 2wd rpo code list, p.1.

Suburban — GMT400 (1992–1999)

1998–1999 Factory-verified

GM prints "GMT 425"

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)

2001–2006 Factory-verified

GM factory document — 2001 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.

Suburban — GMT900 (2007–2014)

2007–2009 Factory-verified

NICB 2007 p.80 prints Suburban and Avalanche Luxury lines with the footnote option Y91, Luxury Edition (a generic code across several GM lines).

GM factory document — 2007 chevrolet chevy suburban 2wd rpo code list, p.1.
GM factory document — 2008 chevrolet chevy suburban 2wd rpo code list, p.1.
GM factory document — 2009 chevrolet chevy suburban 2wd rpo code list, p.1.

Tahoe — GMT400 (1995–1999)

1998–1999 Factory-verified

GM prints "GMT 425"

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 — GMT800 (2000–2006)

2001–2006 Factory-verified

GM factory document — 2001 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 factory document — 2005 chevrolet tahoe 2wd rpo code list, p.1.
GM factory document — 2006 chevrolet tahoe 2wd rpo code list, p.1.
GM Heritage factory kit — 2003 Chevrolet Tahoe, p.33.

Tahoe — GMT900 (2007–2014)

2007–2009 Factory-verified

NICB 2007 p.80 prints the Silverado, Tahoe, Suburban and Avalanche Luxury lines with the footnote option Y91, Luxury Edition (a generic code across several GM lines).

GM factory document — 2007 chevrolet tahoe 2wd rpo code list, p.1.
GM factory document — 2008 chevrolet tahoe 2wd rpo code list, p.1.
GM factory document — 2009 chevrolet tahoe 2wd rpo code list, p.1.

TrailBlazer — GMT360 (2002–2009)

2005, 2008, 2009 Factory-verified

GM factory document — 2005 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.

Traverse — First generation (2009–2017)

2009 Factory-verified

generic code: the 2009 list is shared with the Acadia, Enclave and Outlook, and no source shows a Traverse Luxury Edition; NICB 2007 p.81 names Y91 as the Luxury Edition across several GM lines.

GM factory document — 2009 chevrolet traverse rpo code list, p.1.

Uplander (2005–2008)

2005–2007 Factory-verified

the 2005 list reads Luxury

GM factory document — 2005 chevrolet uplander rpo code list, p.1.
GM factory document — 2006 chevrolet uplander rpo code list, p.1.
GM factory document — 2007 chevrolet uplander rpo code list, p.1.

Venture — U-body minivan (1997–2005)

1997–2003, 2005 Factory-verified

the 1999 list includes AP9, A20, C79, D32, IPC, K34 and UL0 or a radio upgrade; the 2003 and 2005 order guides call it the LS Model Package

GM factory document — 1999 chevrolet venture ext rpo code list, p.1.
GM factory document — 2000 chevrolet venture ext rpo code list, p.1.
GM factory document — 2001 chevrolet venture ext rpo code list, p.1.
GM factory document — 2002 chevrolet venture ext rpo code list, p.1.
GM Heritage factory kit — 1997 Chevrolet Venture, p.82.
GM Heritage factory kit — 1998 Chevrolet Venture, p.91.
GM Heritage factory kit — 2003 Chevrolet Venture, p.97.
GM Heritage factory kit — 2005 Chevrolet Venture, p.88.

This page aggregates every documented appearance of Y91 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.