- 2013 Confirmed
deleted for 2014 (GM Authority 2014 RPO changes); 2013 from the 2014 deletion list
GCR Confirmed
Documented applications
- 2013 Confirmed
dropped for 2014 (GM Authority 2014 changes article, which calls its list the official RPO-level changes)
This page aggregates every documented appearance of GCR in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.