Label, price/fuel economy, Puerto Rico and Virgin Islands

Years 1999–00, 2004–05, 2007–09 Models 4 Factory citations 8

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Also described as Label, price/fuel economy, Puerto Rico

Also documented for Cadillac Chevrolet GMC Oldsmobile Pontiac Saturn

Documented applications

Century — W-body (1997–2005)

1999–2000 Factory-verified internal

GM factory document — 1999 buick century rpo code list, p.1.
GM factory document — 2000 buick century rpo code list, p.1.

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

2005, 2007–2009 Factory-verified internal

GM factory document — 2005 buick lacrosse rpo code list, p.1.
GM factory document — 2007 buick lacrosse rpo code list, p.1.
GM factory document — 2009 buick lacrosse 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)

1999–2000 Factory-verified internal

GM factory document — 1999 buick regal rpo code list, p.1.
GM factory document — 2000 buick regal rpo code list, p.1.

This page aggregates every documented appearance of VC4 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.