C66 Factory-verified

Chevrolet · Regular Production Option

HVAC system, air conditioner, provision for dealer installation

Years 2006, 2008–09 Models 2 Factory citations 3
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Also documented for Pontiac

Documented applications

This page aggregates every documented appearance of C66 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.