- 2014 Factory-verified
1LT, 2LT: S; with an integrated LED center high-mounted stop lamp
TTQ Factory-verified
Also described as Spoiler, rear
Documented applications
- 2018–2019 Factory-verified
all trims: S; 2017 is left out: the 2017 guide prints it only as equipment-group contents (the 'Included in Equipment Group' mark only) of every group, 1SA to 1SF (p.19), and a later guide's standalone line does not date an earlier year; 2018 from GM's 2018 order guide
This page aggregates every documented appearance of TTQ in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.