NF9 Factory-verified

GMC · Regular Production Option

Emission system, general, OBD MIL suppression

Years 2003–10 Models 9 Factory citations 30

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Also described as Emission system, general, unleadedEmissions, general (export)Emission system, general unleaded

Also documented for Buick Cadillac Chevrolet Hummer Oldsmobile Pontiac Saturn

Documented applications

Envoy — GMT360 (2002–2009)

2003, 2004 Factory-verified internal

the 2005–2007 lists give NF9 another wording, see the next row

GM factory document — 2003 gmc envoy 2wd rpo code list, p.1.
GM factory document — 2004 gmc envoy xuv rpo code list, p.1.
2005–2007 Factory-verified internal

the 2003–2004 lists give NF9 another wording, see the previous row

GM factory document — 2005 gmc envoy 2wd rpo code list, p.1.
GM factory document — 2007 gmc envoy 4wd rpo code list, p.1.

Savana — GMT610 (2003–2027)

2003–2006 Factory-verified internal

; the 2007–2009 lists read general, OBD MIL suppression (another meaning, listed in its own row)

GM factory document — 2003 gmc savana rpo code list, p.1.
GM factory document — 2006 gmc savana rpo code list, p.1.
2007–2010 Factory-verified internal

; the 2003–2006 lists read general, unleaded under the same code

GM factory document — 2007 gmc savana rpo code list, p.1.
GM factory document — 2008 gmc savana rpo code list, p.1.
GM factory document — 2008 chevrolet ld electricalfullsizevans, p.17.
GM factory document — 2009 gmc savana rpo code list, p.1.
GM factory document — 2009 chevrolet ld electricalfullsizevans 100813, p.15.
GM factory document — 2010 chevrolet gh van elec 1 7 d1 100813, p.15.

Sierra — GMT800 (1999–2007)

2003–2007 Factory-verified internal

2003–2004 lists: general unleaded; 2005–2007: general with OBD malfunction-lamp suppression

GM factory document — 2003 gmc gmc c sierra 2wd rpo code list, p.1.
GM factory document — 2007 gmc sierra classic 2wd rpo code list, p.1.

Sierra — GMT900 (2007–2013)

2009 Factory-verified internal

GM factory document — 2009 gmc sierra 2wd rpo code list, p.1.

Sierra HD — GMT800 (2001–2007)

2003–2007 Factory-verified internal

2003–2004 lists: general unleaded; 2005–2007: general with OBD malfunction-lamp suppression

GM factory document — 2003 gmc gmc c sierra 2wd rpo code list, p.1.
GM factory document — 2004 gmc gmc c sierra 2wd rpo code list, p.1.
GM factory document — 2005 gmc gmc c sierra 2wd rpo code list, p.1.
GM factory document — 2006 gmc gmc c sierra 2wd rpo code list, p.1.
GM factory document — 2007 gmc sierra classic 2wd rpo code list, p.1.

Sierra HD — GMT900 (2007–2014)

2007–2008 Factory-verified internal

GM factory document — 2007 gmc sierra 2wd rpo code list, p.1.
GM factory document — 2008 gmc sierra 2wd rpo code list, p.1.

Sonoma — second generation (1994–2004)

2003–2004 Factory-verified internal

GM factory document — 2003 gmc sonoma pickup 4wd rpo code list, p.1.
GM factory document — 2004 gmc sonoma pickup 4wd rpo code list, p.1.

Yukon — GMT800 (2000–2006)

2003–2006 Factory-verified internal

GM factory document — 2003 gmc yukon 2wd rpo code list, p.1.
GM factory document — 2004 gmc yukon 2wd rpo code list, p.1.
GM factory document — 2005 gmc yukon 2wd rpo code list, p.1.
GM factory document — 2006 gmc yukon 2wd rpo code list, p.1.

Yukon — GMT900 (2007–2014)

2007–2009 Factory-verified internal

GM factory document — 2007 gmc yukon 2wd rpo code list, p.1.
GM factory document — 2009 gmc yukon 2wd rpo code list, p.1.

This page aggregates every documented appearance of NF9 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.