- 2014–2016 Factory-verified
2014: 1LS, 1FL, 1SA: S; 2015–2016: 1LS, 1FL, 2FL: S
AYK Factory-verified
Documented applications
This page aggregates every documented appearance of AYK in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.