Model conversion, police vehicle

Years 2004, 2006–09 Models 2 Factory citations 7

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Also described as Police vehicle conversion

Also documented for Pontiac

Documented applications

Cavalier — third generation (1995–2005)

2004 Factory-verified

GM factory document — 2004 chevrolet cavalier rpo code list, p.1.
GM Heritage factory kit — 2004 Chevrolet Cavalier, p.22.

Impala — ninth generation (2006–2016)

2006–2009 Factory-verified

The 2007 police order guide calls it a conversion option with a unique VIN.

GM factory document — 2006 chevrolet impala rpo code list, p.1.
GM factory document — 2007 chevrolet impala rpo code list, p.1.
GM factory document — 2008 chevrolet impala rpo code list, p.1.
GM factory document — 2009 chevrolet impala rpo code list, p.1.
GM Heritage factory kit — 2007 Chevrolet Impala, p.143.

This page aggregates every documented appearance of WL9 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.