NA3 Factory-verified

Cadillac · Regular Production Option

Emission system, Japan

Years 2003–09 Models 7 Factory citations 14

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Also documented for Buick Chevrolet GMC Hummer Oldsmobile Pontiac

Documented applications

CTS — Sigma II (2008–2015)

2008–2009 Factory-verified internal

GM factory document — 2008 cadillac cts rpo code list, p.1.
GM factory document — 2009 cadillac cts rpo code list, p.1.

CTS — Sigma / GMX320 (2003–2007)

2003–2007 Factory-verified internal

GM factory document — 2003 cadillac cts rpo code list, p.1.
GM factory document — 2007 cadillac cts rpo code list, p.1.

DeVille — G-body (2000–2005)

2004–2005 Factory-verified internal

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

DTS — G-body (2006–2011)

2006–2009 Factory-verified internal

GM factory document — 2006 cadillac dts rpo code list, p.1.
GM factory document — 2009 cadillac dts rpo code list, p.1.

SRX — Sigma / GMT265 (2004–2009)

2004–2009 Factory-verified internal

GM factory document — 2004 cadillac srx rpo code list, p.1.
GM factory document — 2009 cadillac srx rpo code list, p.1.

STS — Sigma (2005–2011)

2005–2009 Factory-verified internal

GM factory document — 2005 cadillac sts rpo code list, p.1.
GM factory document — 2009 cadillac sts rpo code list, p.1.

XLR — Y-body (2004–2009)

2004–2009 Factory-verified internal

GM factory document — 2004 cadillac xlr rpo code list, p.1.
GM factory document — 2009 cadillac xlr rpo code list, p.1.

This page aggregates every documented appearance of NA3 in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.