- 2018–2021 Factory-verified
RS: S; 2020: GM Authority's 2020 changes page (new center cap); 2021: GM Authority's 2022 changes page, which lists its deletion for 2022
SS9 Factory-verified
Documented applications
This page aggregates every documented appearance of SS9 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.