- 2025–2027 Factory-verified
only in: 2500 HD and 3500 HD pickup; AT4: O; Pro, SLE, SLT, AT4X, Denali, Denali Ultimate: not offered
QFG Factory-verified
Also documented for ChevroletPontiac
Documented applications
This page aggregates every documented appearance of QFG in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.