Filter, air, automatic recirculating

Years 2005–09, 2014 Models 4 Factory citations 7

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Also described as Air filtration, automatic cabin odor filtration

Documented applications

CTS — Sigma II (2008–2015)

2014 Factory-verified

Performance: O (in Y41); Premium: included; CTS-V Coupe, CTS-V Sedan: S

GM factory document — 2014 cadillac cts coupe and cts v coupe fleet order guide wayback, p.1.
GM factory document — 2014 cadillac cts v sedan fleet order guide wayback, p.2.

CTS — Sigma / GMX320 (2003–2007)

2005 Factory-verified

2005 list only; also on the 2005 STS list.

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

SRX — Sigma / GMT265 (2004–2009)

2007–2009 Factory-verified

GM factory document — 2007 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

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

This page aggregates every documented appearance of K14 in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.