- 2016–2019, 2021–2022 Factory-verified
2017: Z71: O; Base, WT, LT: not offered; Z71, ZR2 (2018 guide); in PDN (2017); 2018 from GM's 2018 Colorado order guide (PDF); 2021 from the upfitter list GM files for 2021 and 2022
SMY Factory-verified
Also described as LPO, wheels, 17 inch black-painted
Documented applications
- 2023–2027 Factory-verified
dealer-installed; ZR2: O; WT, LT, Trail Boss, Z71: not offered
This page aggregates every documented appearance of SMY in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.