- 2022–2023, 2025–2027 Factory-verified
2027: AT4 Ultimate, Denali Ultimate: S; AT4, Denali: O
UTW Factory-verified
Also documented for CadillacChevrolet
Documented applications
- 2022–2023, 2025–2027 Factory-verified
2027: AT4 Ultimate, Denali Ultimate: S; AT4, Denali: O
This page aggregates every documented appearance of UTW in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.