CW4 Factory-verified
Also described as Country, Caribbean (Antigua, Bahamas, Barbados, Bermuda, Cayman, Dominican Republic, Haiti, Jamaica and others)
Also documented for BuickCadillacChevroletGMCHummerSaturn
Documented applications
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The 2008 list gives abbreviated names and adds do not release parts; the 2009 list prints Beruda, read here as Bermuda from the 2008 abbreviation BRMDA.
This page aggregates every documented appearance of CW4 in the Pontiac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.