Radio control, rear seat and earphone jacks

Years 2002–09 Models 4 Factory citations 8

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Also documented for Buick Chevrolet GMC Hummer Oldsmobile Pontiac Saturn

Documented applications

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

The 2009 list adds do not use after model year 2010, use option ULD.

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 — 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

The 2009 list adds do not use after model year 2010, use option ULD.

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 UK6 in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.