Brake system, power, front disc, rear drum, cast iron, antilock, front and rear wheel

Years 1998–09 Models 10 Factory citations 28

Also described as Brake system, power, front disc, rear drum, cast iron, antilock, front and rear wheelsBrake system, front disc, rear drum, antilockBrakes, antilock

Also documented for Buick Chevrolet GMC Oldsmobile Saturn

Documented applications

Aztek — U-body (2001–2005)

2001–2005 Factory-verified

GM factory document — 2001 pontiac aztek awd rpo code list, p.1.
GM factory document — 2002 pontiac aztek awd rpo code list, p.1.
GM factory document — 2003 pontiac aztek awd rpo code list, p.1.
GM factory document — 2004 pontiac aztek awd rpo code list, p.1.
GM factory document — 2005 pontiac aztek awd rpo code list, p.1.

Bonneville — H-body, 9th gen (1992–1999)

1998–1999 Factory-verified

Bonneville Club agrees.

GM factory document — 1998 pontiac bonneville rpo code list, p.1.
GM factory document — 1999 pontiac bonneville rpo code list, p.1.

G3 — Daewoo Kalos (T250) / Aveo5 twin (2009)

2009 Factory-verified

GM factory document — 2009 pontiac g3 rpo code list, p.1.

Pontiac G5 — Delta (2007–2009)

2007–2009 Factory-verified

shared Delta platform code; Chevrolet Cobalt kit.

GM factory document — 2007 pontiac g5 rpo code list, p.1.
GM factory document — 2009 pontiac g5 rpo code list, p.1.
GM Heritage factory kit — 2007 Chevrolet Cobalt, p.154.

Grand Am — N-body (1992–1998)

1998 Factory-verified

the list prints Disk and also prints a second line, Brakes, Antilock

GM factory document — 1998 pontiac grand am rpo code list, p.1.

Grand Am — Fifth generation (1999–2005)

1999–2005 Factory-verified

The 2005 list words it power brake system, front disc, rear drum, cast iron, antilock, front and rear wheel.

GM factory document — 1999 pontiac grand am rpo code list, p.1.
GM factory document — 2005 pontiac grand am rpo code list, p.1.

Montana — U-body second generation (1997–2005)

1998–2005 Factory-verified

GM factory document — 1998 pontiac trans sport ext rpo code list, p.1.
GM factory document — 1999 pontiac montana ext rpo code list, p.1.
GM factory document — 2000 pontiac montana ext rpo code list, p.1.
GM factory document — 2001 pontiac montana ext rpo code list, p.1.
GM factory document — 2002 pontiac montana ext rpo code list, p.1.
GM factory document — 2003 pontiac montana ext rpo code list, p.1.
GM factory document — 2004 pontiac montana ext rpo code list, p.1.
GM factory document — 2005 pontiac montana 4wd rpo code list, p.1.

Sunfire — J-body (1995–2005)

1998–2005 Factory-verified

GM factory document — 1998 pontiac sunfire rpo code list, p.1.
GM factory document — 2005 pontiac sunfire rpo code list, p.1.

Torrent — Theta / GMT192 (2006–2009)

2006–2007 Factory-verified

GM factory document — 2006 pontiac torrent rpo code list, p.1.
GM factory document — 2007 pontiac torrent rpo code list, p.1.

Vibe — First generation (2003–2008)

2003–2008 Factory-verified

GM factory document — 2003 pontiac vibe awd rpo code list, p.1.
GM factory document — 2008 pontiac vibe fwd rpo code list, p.1.

This page aggregates every documented appearance of JM4 in the Pontiac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.