- 2025–2027 Factory-verified
S: RS; O: LT; not offered: ACTIV; 2026 and 2027: on LT included in, and only available with, PJH or PJW
QGS Factory-verified
Also documented for GMC
Documented applications
This page aggregates every documented appearance of QGS in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.