- 2020–2021 Single-source
2020: GM Authority's 2020 changes page, which gives it in place of SLY; 2021: GM Authority's 2022 changes page, which lists its deletion for 2022
Q6T Single-source
Documented applications
This page aggregates every documented appearance of Q6T in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.