- 2014 Confirmed
GM Authority 2014 RPO list
Also described as Remote keyless entry, standard rangeRemote keyless entry, extended rangeRemote keyless entry, 2 transmittersLock control, entry, remote entry, standard rangeRemote Keyless Entry with panic alarm
Documented applications
- 2014 Factory-verified
1LS, 2LS, 1LT, LTZ: S
- 2015–2018 Factory-verified
the 2015 list reads with two fobs; 2018 guide: 1LS, 1LT: S
- 2015–2019, 2021–2022 Factory-verified
2015: LT, Z71: S; WT: O; Base: not offered; the upfitter lists read standard range; 2018 from GM's 2018 Colorado order guide (PDF); 2021 from the upfitter list GM files for 2021 and 2022
- 2023–2027 Factory-verified
WT, Trail Boss: S; LT, Z71, ZR2: not offered
- 2014–2018, 2022–2027 Factory-verified
the 2025–2027 guides read Remote Keyless Entry; O: Cargo 1WT, Cutaway 1WT, Cutaway 2WT (2025–2026), Passenger 1LS; included in a package: Passenger 1LT
- 2016, 2018–2019 Factory-verified
2016: all trims: S; 2018–2019: LS, LT: S
This page aggregates every documented appearance of ATG in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.