N05 Factory-verified

Buick · Regular Production Option

Lock control, fuel filler cap

Years 1998–06, 2009 Models 6 Factory citations 20

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Also documented for Cadillac Chevrolet GMC Hummer Oldsmobile Pontiac Saturn

Documented applications

Century — W-body (1997–2005)

1998–2004 Factory-verified

GM factory document — 1998 buick century rpo code list, p.1.
GM factory document — 1999 buick century rpo code list, p.1.
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 — 2002 buick century rpo code list, p.1.
GM factory document — 2003 buick century rpo code list, p.1.
GM factory document — 2004 buick century rpo code list, p.1.

Enclave — Lambda / GMT967 (2008–2017)

2009 Factory-verified

GM factory document — 2009 buick enclave rpo code list, p.1.

LaCrosse — W-body / GMX365 (2005–2009)

2005 Factory-verified

GM factory document — 2005 buick lacrosse rpo code list, p.1.

Regal — W-body (1997–2004)

1998–2004 Factory-verified

GM factory document — 1998 buick regal rpo code list, p.1.
GM factory document — 1999 buick regal rpo code list, p.1.
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 — 2002 buick regal rpo code list, p.1.
GM factory document — 2003 buick regal rpo code list, p.1.
GM factory document — 2004 buick regal rpo code list, p.1.

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

2004–2006 Factory-verified

The 2004 and 2005 lists print NO5 (letter O); the 2006 list prints N05 (zero), which is the code. Not printed in 2002, 2003 or 2007.

GM factory document — 2004 buick rendezvous awd rpo code list, p.1.
GM factory document — 2006 buick rendezvous awd rpo code list, p.1.

Terraza — U-body / GMT201 (2005–2007)

2005–2006 Factory-verified

GM factory document — 2005 buick terraza rpo code list, p.1.
GM factory document — 2006 buick terraza rpo code list, p.1.

This page aggregates every documented appearance of N05 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.