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

Years 1998–09, 2014, 2018–19, 2025–27 Models 13 Factory citations 42

Also described as Brake system, power front and rear disc, antilock front and rear wheelBrakes, 4-wheel antilock, 4-wheel discBrake system, power, front and rear disc, antilock front and rearBrake system, power, front and rear disc, antilock front and rear wheel

Also documented for Cadillac Chevrolet GMC Oldsmobile Pontiac Saturn

Documented applications

Century — W-body (1997–2005)

1998–2005 Factory-verified

GM factory document — 1998 buick century rpo code list, p.1.
GM factory document — 1999 buick century rpo code list, p.1.
GM factory document — 2000 buick century rpo code list, p.1.
GM factory document — 2001 buick century rpo code list, p.1.
GM factory document — 2002 buick century rpo code list, p.1.
GM factory document — 2003 buick century rpo code list, p.1.
GM factory document — 2004 buick century rpo code list, p.1.
GM factory document — 2005 buick century rpo code list, p.1.

Enclave — C1XX (2018–2024)

2018 Factory-verified

only in: AWD.

GM factory document — 2018 buick enclave fleet order guide wayback, p.1.

Enclave — Lambda / GMT967 (2008–2017)

2008–2009 Factory-verified

GM factory document — 2008 buick enclave rpo code list, p.1.
GM factory document — 2009 buick enclave rpo code list, p.1.

Encore — Gamma II (2013–2022)

2014, 2018–2019 Factory-verified

all trims: S

GM factory document — 2014 buick encore fleet order guide wayback, p.4.
GM factory document — 2018 buick encore order guide copy gm authority, p.6, p.22.
GM factory document — 2019 buick encore order guide copy gm authority, p.5, p.20.

Encore GX — VSS-F (2020–2027)

2025–2027 Factory-verified

Preferred, Sport Touring, Avenir: S

GM factory document — 2025 buick encore gx fleet order guide, p.7.
GM factory document — 2026 buick encore gx fleet order guide, p.7.
GM factory document — 2027 buick encore gx fleet order guide, p.7.

LaCrosse — W-body / GMX365 (2005–2009)

2005–2009 Factory-verified

TriShield agrees on the meaning.

GM factory document — 2005 buick lacrosse rpo code list, p.1.
GM factory document — 2007 buick lacrosse rpo code list, p.1.
GM factory document — 2009 buick lacrosse rpo code list, p.1.

LeSabre — H-body (2000–2005)

2000–2005 Factory-verified

TriShield agrees on the meaning.

GM factory document — 2000 buick lesabre rpo code list, p.1.
GM factory document — 2005 buick lesabre rpo code list, p.1.

Lucerne — G-body (2006–2011)

2006–2009 Factory-verified

TriShield agrees on the meaning.

GM factory document — 2006 buick lucerne rpo code list, p.1.
GM factory document — 2009 buick lucerne rpo code list, p.1.

Park Avenue — G-body (1997–2005)

1998–2005 Factory-verified

TriShield agrees on the meaning.

GM factory document — 1998 buick park avenue rpo code list, p.1.
GM factory document — 2005 buick park avenue rpo code list, p.1.

Regal — W-body (1997–2004)

1998–2004 Factory-verified

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

Rendezvous — U-body / GMT257 (2002–2007)

2002–2007 Factory-verified

The 2002 list reads "4-Wheel Disc".

GM factory document — 2002 buick rendezvous awd rpo code list, p.1.
GM factory document — 2003 buick rendezvous awd rpo code list, p.1.
GM factory document — 2006 buick rendezvous awd rpo code list, p.1.
GM factory document — 2007 buick rendezvous fwd rpo code list, p.1.

Riviera — G-body (1995–1999)

1998–1999 Factory-verified

GM factory document — 1998 buick riviera rpo code list, p.1.
GM factory document — 1999 buick riviera rpo code list, p.1.

Terraza — U-body / GMT201 (2005–2007)

2005–2007 Factory-verified

GM factory document — 2005 buick terraza rpo code list, p.1.
GM factory document — 2006 buick terraza rpo code list, p.1.
GM factory document — 2007 buick terraza rpo code list, p.1.

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