- 2016 Factory-verified
1LT, 2LT, 2LZ: O (requires GBA); includes Q7P, SFZ, VAT, T43 and VEB
HCR Factory-verified
Also documented for Buick
Documented applications
This page aggregates every documented appearance of HCR in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.