JL9 Factory-verified

Cadillac · Regular Production Option

Brake system, power, front and rear disc, antilock, front and rear wheel

Years 1998–09, 2016, 2025–26 Models 13 Factory citations 39

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Also described as Brakes, 4-wheel antilock, 4-wheel discBrakes, 4-wheel antilock, 4-wheel vented discBrakes, 4 wheel antilock, 4 wheel vented disc

Also documented for Buick Chevrolet GMC Oldsmobile Pontiac Saturn

Documented applications

Catera — V-body (1997–2001)

2000–2001 Factory-verified

GM factory document — 2000 cadillac catera rpo code list, p.1.
GM factory document — 2001 cadillac catera rpo code list, p.1.

CT5 — Alpha 2 (2020–2026)

2025–2026 Factory-verified

only in: CT5 (Premium Luxury, Sport); Premium Luxury, Sport: S

GM factory document — 2025 cadillac ct5 fleet order guide rpo codes, p.1.
GM factory document — 2026 cadillac ct5 fleet order guide rpo codes, p.1.
GM factory document — 2025 cadillac ct5 fleet order guide, p.7.
GM factory document — 2026 cadillac ct5 fleet order guide, p.7.

CTS — Sigma / GMX320 (2003–2007)

2003–2007 Factory-verified

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)

2000–2005 Factory-verified

GM factory document — 2000 cadillac deville rpo code list, p.1.
GM factory document — 2001 cadillac deville rpo code list, p.1.
GM factory document — 2005 cadillac deville rpo code list, p.1.

DeVille — K-body (1994–1999)

1998–1999 Factory-verified

GM factory document — 1998 cadillac deville rpo code list, p.1.
GM factory document — 1999 cadillac deville rpo code list, p.1.

DTS — G-body (2006–2011)

2006–2009 Factory-verified

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

Eldorado — E-body (1992–2002)

1998–2002 Factory-verified

GM factory document — 1998 cadillac eldorado rpo code list, p.1.
GM factory document — 1999 cadillac eldorado rpo code list, p.1.
GM factory document — 2000 cadillac eldorado rpo code list, p.1.
GM factory document — 2001 cadillac eldorado rpo code list, p.1.
GM factory document — 2002 cadillac eldorado rpo code list, p.1.

Seville — G-body (1998–2004)

1998–2004 Factory-verified

GM factory document — 1998 cadillac seville rpo code list, p.1.
GM factory document — 1999 cadillac seville rpo code list, p.1.
GM factory document — 2000 cadillac seville rpo code list, p.1.
GM factory document — 2001 cadillac seville rpo code list, p.1.
GM factory document — 2002 cadillac seville rpo code list, p.1.
GM factory document — 2003 cadillac seville rpo code list, p.1.
GM factory document — 2004 cadillac seville rpo code list, p.1.

SRX — Theta Premium / GMT166 (2010–2016)

2016 Confirmed

all trims: S; GM's 2016 SRX order guide (GM Authority's copy, published September 18, 2015)

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.

XLR — Y-body (2004–2009)

2004–2009 Factory-verified

The 2004 list prints "4-Wheel".

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

XT5 — C1XX (2017–2026)

2025–2026 Factory-verified

Luxury, Premium Luxury: S; Sport: not available

GM factory document — 2025 cadillac xt5 fleet order guide rpo codes, p.1.
GM factory document — 2026 cadillac xt5 professional vehicles fleet order guide rpo codes, p.1.
GM factory document — 2025 cadillac xt5 fleet order guide, p.7.
GM factory document — 2025 cadillac xt5 fleet order guide, p.33.
GM factory document — 2026 cadillac xt5 fleet order guide, p.9.
GM factory document — 2026 cadillac xt5 fleet order guide, p.34.

XT6 — C1XX (2020–2025)

2025 Factory-verified

Luxury: S; Premium Luxury: S

GM factory document — 2025 cadillac xt6 fleet order guide, p.7.
GM factory document — 2025 cadillac xt6 fleet order guide, p.62.

This page aggregates every documented appearance of JL9 in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.