Y91 Factory-verified

Cadillac · Regular Production Option

Merchandised package, luxury edition

Years 1999–00, 2002–09, 2018 Models 6 Factory citations 11

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Also described as Luxury PackageSales package, luxury (GMT 425)

Also documented for Buick Chevrolet GMC Hummer Oldsmobile Pontiac Saturn

Documented applications

ATS — Alpha (2013–2019)

2018 Factory-verified

only in: ATS-V; navigation Y26, sport pedals JF5, Universal Home Remote UG1 and HID headlamps T4F

GM factory document — 2018 cadillac ats v fleet order guide wayback, p.2.

Escalade EXT — GMT800 (2002–2006)

2002–2006 Factory-verified

GM factory document — 2002 cadillac escalade ext rpo code list, p.1.
GM factory document — 2006 cadillac escalade ext rpo code list, p.1.

Escalade EXT — GMT900 (2007–2013)

2007–2009 Factory-verified

NICB 2007 p.81 names Y91 as the Luxury Edition.

GM factory document — 2007 cadillac escalade ext rpo code list, p.1.
GM factory document — 2009 cadillac escalade ext rpo code list, p.1.

Escalade — GMT400-based, GMT435 (1999–2000)

1999–2000 Factory-verified

GM prints "GMT 425"

GM factory document — 1999 cadillac escalade rpo code list, p.1.
GM factory document — 2000 cadillac escalade rpo code list, p.1.

Escalade — GMT800 (2002–2006)

2002–2006 Factory-verified

GM factory document — 2002 cadillac escalade 2wd rpo code list, p.1.
GM factory document — 2006 cadillac escalade rpo code list, p.1.

Escalade — GMT900 (2007–2014)

2007–2009 Factory-verified

NICB 2007 p.81 names Y91 as the Luxury Edition.

GM factory document — 2007 cadillac escalade rpo code list, p.1.
GM factory document — 2009 cadillac escalade rpo code list, p.1.

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