- 2027 Factory-verified
AT4, Denali, Denali Ultimate: O; Elevation: not offered; includes RIK and SFZ
RFE Factory-verified
Also described as LPO, black badging package
Documented applications
- 2026–2027 Factory-verified
Elevation, AT4X, Denali: O; AT4: not offered
- 2026–2027 Factory-verified
only in: 2500 HD and 3500 HD pickup; includes black GMC emblems (SFZ) and black badge (RIK); dealer-installed
- 2026 Factory-verified
This page aggregates every documented appearance of RFE in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.