Radio, AM stereo/FM stereo, seek/scan, compact disc, clock, ETR

Years 2004–05 Models 2 Factory citations 3

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Documented applications

DeVille — G-body (2000–2005)

2004–2005 Factory-verified

GM factory document — 2004 cadillac deville rpo code list, p.1.
GM factory document — 2005 cadillac deville rpo code list, p.1.

Seville — G-body (1998–2004)

2004 Factory-verified

GM factory document — 2004 cadillac seville rpo code list, p.1.

This page aggregates every documented appearance of UM3 in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.