Emission system, California, LEV

Years 2000–04 Models 5 Factory citations 10

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Also documented for Cadillac Chevrolet GMC Hummer Oldsmobile Pontiac Saturn

Documented applications

Century — W-body (1997–2005)

2000–2001, 2003 Factory-verified internal

GM factory document — 2000 buick century rpo code list, p.1.
GM factory document — 2001 buick century rpo code list, p.1.
GM factory document — 2003 buick century rpo code list, p.1.

Park Avenue — G-body (1997–2005)

2000–2002 Factory-verified internal

GM factory document — 2000 buick park avenue rpo code list, p.1.
GM factory document — 2002 buick park avenue rpo code list, p.1.

Rainier — GMT360 (2004–2007)

2004 Factory-verified internal

GM factory document — 2004 buick rainier 2wd rpo code list, p.1.

Regal — W-body (1997–2004)

2000–2001, 2003 Factory-verified internal

GM factory document — 2000 buick regal rpo code list, p.1.
GM factory document — 2001 buick regal rpo code list, p.1.
GM factory document — 2003 buick regal rpo code list, p.1.

Rendezvous — U-body / GMT257 (2002–2007)

2003 Factory-verified internal

GM factory document — 2003 buick rendezvous awd rpo code list, p.1.

This page aggregates every documented appearance of NC1 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.