2001, 2002 Factory-verified

years from Heritage kit pages, not in GM’s service list of that year: 2002 (kit list)

GM factory document — 2001 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM Heritage factory kit — 2001 Chevrolet Silverado HD, p.63.
GM Heritage factory kit — 2002 Chevrolet Silverado HD, p.42.

Suburban — GMT800 (2000–2006)

2001–2002, 2004–2006 Factory-verified

the 2002 list reads Lamp Fog, RR; the 2002 list words it "Lamp Fog, RR"

GM factory document — 2001 chevrolet chevy suburban 2wd rpo code list, p.1.
GM factory document — 2002 chevrolet chevy suburban 2wd rpo code list, p.1.
GM factory document — 2004 chevrolet chevy suburban 2wd rpo code list, p.1.
GM factory document — 2005 chevrolet chevy suburban 2wd rpo code list, p.1.
GM factory document — 2006 chevrolet chevy suburban 2wd rpo code list, p.1.
GM Heritage factory kit — 2001 Chevrolet Suburban, p.52.
GM Heritage factory kit — 2002 Chevrolet Suburban, p.38.

Suburban — GMT900 (2007–2014)

2007–2009 Factory-verified

GM factory document — 2007 chevrolet chevy suburban 2wd rpo code list, p.1.
GM factory document — 2008 chevrolet chevy suburban 2wd rpo code list, p.1.
GM factory document — 2009 chevrolet chevy suburban 2wd rpo code list, p.1.

Tahoe — GMT800 (2000–2006)

2001–2002, 2004–2006 Factory-verified

the 2002 list reads Lamp Fog, RR; the 2002 list words it "Lamp Fog, RR"

GM factory document — 2001 chevrolet tahoe 2wd rpo code list, p.1.
GM factory document — 2002 chevrolet tahoe 2wd rpo code list, p.1.
GM factory document — 2004 chevrolet tahoe 2wd rpo code list, p.1.
GM factory document — 2005 chevrolet tahoe 2wd rpo code list, p.1.
GM factory document — 2006 chevrolet tahoe 2wd rpo code list, p.1.
GM Heritage factory kit — 2002 Chevrolet Tahoe, p.31.
GM Heritage factory kit — 2006 Chevrolet Tahoe, p.29.

Tahoe — GMT900 (2007–2014)

2007–2009 Factory-verified

GM factory document — 2007 chevrolet tahoe 2wd rpo code list, p.1.
GM factory document — 2008 chevrolet tahoe 2wd rpo code list, p.1.
GM factory document — 2009 chevrolet tahoe 2wd rpo code list, p.1.

TrailBlazer — GMT360 (2002–2009)

2003–2009 Factory-verified

GM factory document — 2003 chevrolet trailblazer 2wd rpo code list, p.1.
GM factory document — 2004 chevrolet trailblazer 2wd rpo code list, p.1.
GM factory document — 2005 chevrolet trailblazer 2wd rpo code list, p.1.
GM factory document — 2006 chevrolet trailblazer 2wd rpo code list, p.1.
GM factory document — 2007 chevrolet trailblazer 2wd rpo code list, p.1.
GM factory document — 2008 chevrolet trailblazer 2wd rpo code list, p.1.
GM factory document — 2009 chevrolet trailblazer 2wd rpo code list, p.1.

Traverse — First generation (2009–2017)

2009 Factory-verified

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

This page aggregates every documented appearance of T79 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.