- 2015–2016 Factory-verified
2015: LT, LTZ: S; 2016: 1LT, 1LZ: S
UDY Factory-verified
Also documented for Buick
Documented applications
This page aggregates every documented appearance of UDY in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.