- 2017, 2019, 2021–2022 Factory-verified
2021: Denali: S; Elevation Standard, Elevation, AT4: not offered
RQ9 Factory-verified
Also documented for CadillacChevrolet
Documented applications
This page aggregates every documented appearance of RQ9 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.