- 2020 Confirmed
new for 2020, 5-door only, extra cost; GM Authority 2020 changes page, which gives the official change list directly from GM
GLL Confirmed
Also documented for Cadillac
Documented applications
This page aggregates every documented appearance of GLL in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.