- 2015–2019, 2021–2022 Factory-verified
2015: LT: O; Base, WT, Z71: not offered; 2017: LT: O; Base, WT, Z71: not offered; 2018 from GM's 2018 Colorado order guide (PDF); 2021 from the upfitter list GM files for 2021 and 2022
DL9 Factory-verified
Also described as Mirrors, outside, heated, power adjustable, manual folding, chromeMirrors, outside heated power-adjustable, chrome, manual-folding
Also documented for GMC
Documented applications
This page aggregates every documented appearance of DL9 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.