- 2025–2027 Factory-verified
2025: Elevation, AT4: S; Denali: not offered; 2026–2027: Elevation, AT4: S; Denali, Denali Ultimate: not offered; printed with the letter O; GM prints no zero form
BHO Factory-verified
Also documented for Chevrolet
Documented applications
This page aggregates every documented appearance of BHO in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.