- 2023–2025 Factory-verified
AT4: S; Elevation, Denali: not offered; the 2025 list prints only the size; the 2023 upfitter list names the design number
RQL Factory-verified
Also documented for Chevrolet
Documented applications
This page aggregates every documented appearance of RQL in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.