TRB Factory-verified

Chevrolet · Regular Production Option

Grille, radiator, body color

Years 2001–09, 2025–27 Models 7 Factory citations 38

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Also described as Grille, body colorGrille, gloss BlackProvisions, roof-mounted lamp

Also documented for Cadillac GMC

Documented applications

Avalanche — GMT800 (2002–2006)

2002, 2004–2006 Factory-verified

GM factory document — 2002 chevrolet avalanche 2wd rpo code list, p.1.
GM factory document — 2004 chevrolet avalanche 2wd rpo code list, p.1.
GM factory document — 2005 chevrolet avalanche 2wd rpo code list, p.1.
GM factory document — 2006 chevrolet avalanche 2wd rpo code list, p.1.
GM Heritage factory kit — 2002 Chevrolet Avalanche, p.55.
GM Heritage factory kit — 2005 Chevrolet Avalanche, p.34.

Aveo — T200 (2004–2008)

2008 Factory-verified

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

Blazer EV (2024–2027)

2025–2027 Factory-verified

only in: Blazer EV, not the Police Package; the Police Package lists give TRB another meaning, Grille, gloss Black (next row)

GM factory document — 2025 chevrolet blazer ev fleet order guide rpo codes, p.1.
GM factory document — 2026 chevrolet blazer ev fleet order guide rpo codes, p.1.
GM factory document — 2027 chevrolet blazer ev fleet order guide rpo codes, p.1.
2025–2027 Factory-verified

only in: Police Package; the Blazer EV lists give TRB another meaning, Grille, body color (previous row)

GM factory document — 2025 chevrolet blazer ev police package fleet order guide rpo codes, p.1.
GM factory document — 2026 chevrolet blazer ev police package fleet order guide rpo codes, p.1.
GM factory document — 2027 chevrolet blazer ev police package fleet order guide rpo codes, p.1.

Silverado — GMT800 (1999–2007)

2001 Disputed

the 2001 list and its kit reprint give TRB the same wording as TRW; the 2002–2007 lists use TRB for a body-color grille

GM factory document — 2001 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM Heritage factory kit — 2001 Chevrolet Silverado, p.57.
2002–2007 Factory-verified

the 2001 list prints another wording (see the 2001 row); the Silverado SS order guides call it a color-keyed grille

GM factory document — 2002 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2004 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2007 chevrolet silverado classic 2wd rpo code list, p.1.
GM Heritage factory kit — 2003 Chevrolet Silverado SS, p.207.
GM Heritage factory kit — 2007 Chevrolet Silverado, p.57.

Suburban — GMT800 (2000–2006)

2001–2002, 2004–2006 Factory-verified

the 2001 list gives TRB the wording of TRW; the 2002–2006 lists use TRB for a body-color grille

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.
GM Heritage factory kit — 2004 Chevrolet Suburban, p.42.

Tahoe — GMT800 (2000–2006)

2001–2002, 2004–2006 Factory-verified

the 2001 list gives TRB the wording of TRW; the 2002–2006 lists use TRB for a body-color grille

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 — 2001 Chevrolet Tahoe, p.45.
GM Heritage factory kit — 2002 Chevrolet Tahoe, p.31.
GM Heritage factory kit — 2004 Chevrolet Tahoe, p.34.

TrailBlazer — GMT360 (2002–2009)

2008, 2009 Factory-verified

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

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