JL9 Factory-verified

Chevrolet · Regular Production Option

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

Years 1989–09, 2014–27 Models 31 Factory citations 130

Also described as Brakes, 4-wheel antilock, 4-wheel discBrakes, 4-wheel antilock, 4-wheel disc, heavy-dutyBrakes, 4 wheel antilock, 4 wheel discBrakes, antilock, front and rear discBrake system, power, front and rear disc, antilock, 4 wheelBrakes, 4-wheel antilock disc (base)Brakes, 4-wheel antilock, 4-wheel disc, 12.6 inch (32.1 cm) front and 13.3 inch (33.9 cm) rear brake rotorsBrake system, power, front disc, rear drum, cast iron, antilock, front and rear wheelBrake system, power front and rear disc, antilock front and rear wheelBrakes, power front and rear disc, antilock

Also documented for Buick Cadillac GMC Oldsmobile Pontiac Saturn

Documented applications

Camaro — Gen 5 Zeta (2010–2015)

2014 Confirmed

the list gives J56 and J57 the same wording; GM Authority 2014 RPO list

Camaro — Gen 6 Alpha (2016–2024)

2016, 2019, 2023 Factory-verified

GM factory document — 2016 chevrolet camaro fleet order guide wayback, p.1.
GM factory document — 2019 chevrolet camaro fleet order guide wayback, p.7.
GM factory document — 2023 chevrolet camaro fleet order guide wayback, p.4.

Caprice — Caprice PPV (2011–2017)

2017 Factory-verified

S

GM factory document — 2017 chevrolet caprice ppv order guide copy gm authority, p.3, p.14.

Captiva Sport — Theta (2012–2015)

2014 Factory-verified

1LS, 2LS, 1LT, LTZ: S

GM factory document — 2014 chevrolet captiva sport fleet fleet order guide wayback, p.4.

Cobalt — Delta (2005–2010)

2005–2009 Factory-verified

GM factory document — 2005 chevrolet cobalt rpo code list, p.1.
GM factory document — 2006 chevrolet cobalt rpo code list, p.1.
GM factory document — 2007 chevrolet cobalt rpo code list, p.1.
GM factory document — 2008 chevrolet cobalt rpo code list, p.1.
GM factory document — 2009 chevrolet cobalt rpo code list, p.1.
GM Heritage factory kit — 2005 Chevrolet Cobalt, p.40.
GM Heritage factory kit — 2007 Chevrolet Cobalt, p.29.

Colorado — Second generation (GMT31XX) (2015–2022)

2015–2019, 2021–2022 Factory-verified

2015: S on all trims; 2018 from GM's 2018 Colorado order guide (PDF); 2021 from the upfitter list GM files for 2021 and 2022

GM factory document — 2015 chevrolet colorado fleet order guide wayback, p.4.
GM factory document — 2016 chevrolet canyon colorado electrical body builders manual service manual 2016 en us, p.10.
GM factory document — 2017 chevrolet canyon colorado electrical body builders manual service manual 2017 en us, p.11.
GM factory document — 2019 chevrolet 19 coloradocanyon body builder sm u 2018aug01 1, p.11.
GM factory document — 2022 chevrolet 22 canyon colorado electrical body builder sm en us 2021oct15, p.11.
GM factory document — 2018 chevrolet colorado order guide copy gm authority, p.10.

Corvette — C4 (1984–1996)

1989–1996 Factory-verified

1989–1991 and 1994–1996 from the brake legend of the specification pages (1989 p.155, 1990 p.81, 1991 p.36, 1994 p.146, 1995 p.142, 1996 p.132)

GM Heritage factory kit — 1989 Chevrolet Corvette, p.155.
GM Heritage factory kit — 1990 Chevrolet Corvette, p.81.
GM Heritage factory kit — 1991 Chevrolet Corvette, p.36.
GM Heritage factory kit — 1992 Chevrolet Corvette, p.32.
GM Heritage factory kit — 1993 Chevrolet Corvette, p.18.
GM Heritage factory kit — 1994 Chevrolet Corvette, p.146.
GM Heritage factory kit — 1995 Chevrolet Corvette, p.142.
GM Heritage factory kit — 1996 Chevrolet Corvette, p.132.

Corvette — C5 (1997–2004)

1997–2004 Factory-verified

GM factory document — 1997 chevrolet corvette rpo code list, p.1.
GM factory document — 1998 chevrolet corvette rpo code list, p.1.
GM factory document — 1999 chevrolet corvette rpo code list, p.1.
GM factory document — 2000 chevrolet corvette rpo code list, p.1.
GM factory document — 2001 chevrolet corvette rpo code list, p.1.
GM factory document — 2002 chevrolet corvette rpo code list, p.1.
GM factory document — 2003 chevrolet corvette rpo code list, p.1.
GM factory document — 2004 chevrolet corvette rpo code list, p.1.

Corvette — C6 (2005–2013)

2005–2009 Factory-verified

The 2005 list prints "4-Wheel".

GM factory document — 2005 chevrolet corvette rpo code list, p.1.
GM factory document — 2006 chevrolet corvette rpo code list, p.1.
GM factory document — 2007 chevrolet corvette rpo code list, p.1.
GM factory document — 2008 chevrolet corvette rpo code list, p.1.
GM factory document — 2009 chevrolet corvette rpo code list, p.1.
GM Heritage factory kit — 2005 Chevrolet Corvette, p.22.
GM Heritage factory kit — 2006 Chevrolet Corvette, p.25.

Corvette — C7 (2014–2019)

2014–2019 Factory-verified

only in: Stingray without Z51; all trims: S; 2016, 2019: from GM order-guide copies (Corvette Action Center; 2019 also GM Authority)

GM factory document — 2014 chevrolet corvette stingray fleet order guide wayback, p.1.
GM factory document — 2015 chevrolet corvette fleet order guide wayback, p.13.
GM factory document — 2017 chevrolet corvette fleet order guide wayback, p.1.

Corvette — C8 (2020–2027)

2020–2027 Factory-verified

only in: Stingray

GM factory document — 2020 chevrolet corvette stingray order guide copy corvetteblogger, p.40.
GM factory document — 2021 chevrolet corvette fleet order guide wayback, p.1.
GM factory document — 2022 chevrolet corvette stingray order guide copy corvetteblogger, p.51.
GM factory document — 2023 chevrolet corvette fleet order guide wayback, p.2.
GM factory document — 2024 chevrolet corvette stingray z06 e ray order guide copy corvetteblogger, p.151.
GM factory document — 2025 chevrolet corvette fleet order guide rpo codes, p.1.
GM factory document — 2025 chevrolet corvette fleet order guide, p.4.
GM factory document — 2026 chevrolet corvette fleet order guide rpo codes, p.1.
GM factory document — 2026 chevrolet corvette fleet order guide, p.4.
GM factory document — 2027 chevrolet corvette fleet order guide rpo codes, p.3.
GM factory document — 2027 chevrolet corvette fleet order guide, p.4.

Equinox — first generation (2005–2009)

2007–2009 Factory-verified

2007 from the 2007 kit order guide; the factory list of that year has no entry.

GM factory document — 2008 chevrolet equinox rpo code list, p.1.
GM factory document — 2009 chevrolet equinox rpo code list, p.1.
GM Heritage factory kit — 2007 Chevrolet Equinox, p.100.

Equinox — Second generation (2010–2017)

2015 Factory-verified

S on all trims

GM factory document — 2015 chevrolet equinox fleet order guide wayback, p.4.
2017 Factory-verified

S on all trims

GM factory document — 2017 chevrolet equinox order guide copy gm authority, p.24.

Express — GMT610 (2003–2027)

2008–2009 Factory-verified

GM factory document — 2008 chevrolet express rpo code list, p.1.
GM factory document — 2009 chevrolet express rpo code list, p.1.

HHR (2006–2011)

2008–2009 Factory-verified

the 2008 list prints JM4's wording (front disc, rear drum); the Cobalt and Malibu docs and GM's other lists read front and rear disc.

GM factory document — 2008 chevrolet hhr rpo code list, p.1.
GM factory document — 2009 chevrolet hhr rpo code list, p.1.

Impala — eighth generation (2000–2005)

2000–2005 Factory-verified

The 2005 order guide (p.95) adds that it includes tire inflation monitor and traction control.

GM factory document — 2000 chevrolet impala rpo code list, p.1.
GM factory document — 2001 chevrolet impala rpo code list, p.1.
GM factory document — 2002 chevrolet impala rpo code list, p.1.
GM factory document — 2003 chevrolet impala rpo code list, p.1.
GM factory document — 2004 chevrolet impala rpo code list, p.1.
GM factory document — 2005 chevrolet impala rpo code list, p.1.
GM Heritage factory kit — 2000 Chevrolet Impala, p.43.
GM Heritage factory kit — 2004 Chevrolet Impala, p.29.

Impala — ninth generation (2006–2016)

2006–2009 Factory-verified

GM factory document — 2006 chevrolet impala rpo code list, p.1.
GM factory document — 2007 chevrolet impala rpo code list, p.1.
GM factory document — 2008 chevrolet impala rpo code list, p.1.
GM factory document — 2009 chevrolet impala rpo code list, p.1.

Lumina — first generation, W-body (1990–1994)

1993–1994 Factory-verified

1992 is not claimed: the page that prints it (1992 p.55) carries no readable model-year field

GM Heritage factory kit — 1993 Chevrolet Lumina, p.72.
GM Heritage factory kit — 1994 Chevrolet Lumina, p.41.

Lumina — second generation (1995–2001)

1995–1999 Factory-verified

GM factory document — 1998 chevrolet lumina rpo code list, p.1.
GM factory document — 1999 chevrolet lumina rpo code list, p.1.
GM Heritage factory kit — 1995 Chevrolet Lumina, p.52.
GM Heritage factory kit — 1996 Chevrolet Lumina, p.102.
GM Heritage factory kit — 1997 Chevrolet Lumina, p.69.
GM Heritage factory kit — 1998 Chevrolet Lumina, p.43.
GM Heritage factory kit — 1999 Chevrolet Lumina, p.59.

Malibu — Fifth generation (1997–2005)

1999–2000 Factory-verified

GM factory document — 1999 chevrolet malibu rpo code list, p.1.
GM factory document — 2000 chevrolet malibu rpo code list, p.1.

Malibu — Sixth generation, Epsilon (2004–2008)

2004–2008 Factory-verified

shared Epsilon code (Pontiac G6, Saturn Aura).

GM factory document — 2004 chevrolet malibu rpo code list, p.1.
GM factory document — 2005 chevrolet malibu rpo code list, p.1.
GM factory document — 2006 chevrolet malibu rpo code list, p.1.
GM factory document — 2007 chevrolet malibu rpo code list, p.1.
GM factory document — 2008 chevrolet malibu classic rpo code list, p.1.
GM Heritage factory kit — 2006 Chevrolet Malibu, p.28.

Malibu — Epsilon II (2008–2012)

2008–2009 Factory-verified

GM factory document — 2008 chevrolet malibu rpo code list, p.1.
GM factory document — 2009 chevrolet malibu rpo code list, p.1.

Monte Carlo — fifth generation, W-body (1995–1999)

1998–1999 Factory-verified

The 1999 list ends the line with a stray "Trim Interior Design" fragment.

GM factory document — 1998 chevrolet monte carlo rpo code list, p.1.
GM factory document — 1999 chevrolet monte carlo rpo code list, p.1.

Monte Carlo — sixth generation (2000–2007)

2000–2007 Factory-verified

Also in the kit's Monte Carlo order guide.

GM factory document — 2000 chevrolet monte carlo rpo code list, p.1.
GM factory document — 2001 chevrolet monte carlo rpo code list, p.1.
GM factory document — 2002 chevrolet monte carlo rpo code list, p.1.
GM factory document — 2003 chevrolet monte carlo rpo code list, p.1.
GM factory document — 2004 chevrolet monte carlo rpo code list, p.1.
GM factory document — 2005 chevrolet monte carlo rpo code list, p.1.
GM factory document — 2006 chevrolet monte carlo rpo code list, p.1.
GM factory document — 2007 chevrolet monte carlo rpo code list, p.1.
GM Heritage factory kit — 2003 Chevrolet Monte Carlo, p.91.
GM Heritage factory kit — 2005 Chevrolet Monte Carlo, p.96.
GM Heritage factory kit — 2006 Chevrolet Monte Carlo, p.112.

Spark EV — M300 (2014–2016)

2014 Factory-verified

1LT, 2LT: S; with Brake Assist

GM factory document — 2014 chevrolet spark ev and spark fleet order guide wayback, p.4.

SS — single generation (2014–2017)

2014–2016 Factory-verified

S

GM factory document — 2014 chevrolet ss fleet order guide wayback, p.4.
GM factory document — 2015 chevrolet ss fleet order guide wayback, p.6.
GM factory document — 2016 chevrolet ss fleet order guide wayback, p.4.

Trailblazer — First generation, VSS-F (2021–2027)

2025–2027 Factory-verified

all trims: S

GM factory document — 2025 chevrolet trailblazer fleet order guide, p.6.
GM factory document — 2026 chevrolet trailblazer fleet order guide, p.6.
GM factory document — 2027 chevrolet trailblazer limited fleet order guide, p.8.

Traverse — First generation (2009–2017)

2009, 2015 Factory-verified

the 2015 guide reads 4-wheel antilock brakes with 4-wheel disc brakes.

GM factory document — 2009 chevrolet traverse rpo code list, p.1.
GM factory document — 2015 chevrolet traverse fleet order guide wayback, p.3.

Trax — first US generation (2015–2022)

2016, 2018–2019 Factory-verified

only in: AWD

GM factory document — 2016 chevrolet trax fleet order guide wayback, p.4.
GM factory document — 2018 chevrolet trax order guide copy gm authority, p.22.
GM factory document — 2019 chevrolet trax order guide copy gm authority, p.22.

Uplander (2005–2008)

2005–2008 Factory-verified

GM factory document — 2005 chevrolet uplander rpo code list, p.1.
GM factory document — 2006 chevrolet uplander rpo code list, p.1.
GM factory document — 2007 chevrolet uplander rpo code list, p.1.
GM factory document — 2008 chevrolet uplander rpo code list, p.1.

Venture — U-body minivan (1997–2005)

2000–2005 Factory-verified

GM factory document — 2000 chevrolet venture ext rpo code list, p.1.
GM factory document — 2001 chevrolet venture ext rpo code list, p.1.
GM factory document — 2002 chevrolet venture ext rpo code list, p.1.
GM factory document — 2003 chevrolet venture ext rpo code list, p.1.
GM factory document — 2004 chevrolet venture ext rpo code list, p.1.
GM factory document — 2005 chevrolet venture ext rpo code list, p.1.

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