- 2022–2026 Factory-verified
2022–2023: part of the Edition 1 package (FH1), EV3X only; 2024: also on EV2X; GM Authority 2024 changes page
Z6X Factory-verified
Also described as Off-road performance display
Also documented for Chevrolet
Documented applications
- 2025–2026 Factory-verified
includes spare wheel (QNB), 18 inch Black aluminum wheels (RCS), LT305/70R18 tires (QMG), full underbody skid plates (NZZ), electronically locking front and rear differentials (G93, G94), underbody cameras (UXA), Black rear D-ring recovery hook (SDA) and rocker protectors with assist steps (S6L); the 2026 guide also includes the 35 inch M/T spare tire (QNZ) and, from 1-23-2026, the 18 x 9.5 wheels (RB9) in place of RCS. 2025: O in 1SF, 1SG; 2026: O in 1SF, 1SG; not offered in 3VL.
- 2027 Factory-verified
Pro, Elevation, Denali, Denali Ultimate: not offered; AT4, AT4X: included in the trim group
This page aggregates every documented appearance of Z6X in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.