- 2025–2026 Factory-verified
2LT, 3LT, RS: O; Premier: O (2025 only)
Also described as OnStar One Business Plus, 24 months of serviceOnStar One Fleet plan, 24 months
Also documented for BuickCadillacGMC
Documented applications
- 2025–2027 Factory-verified
the 2025 lists read OnStar One Business Plus - 24 Months of Service
- 2027 Factory-verified
LT, RS: O
- 2026 Factory-verified
O: 400, 600;
- 2025–2027 Factory-verified
O on all trims
- 2025–2027 Factory-verified
the 2025 list prints OnStar One Business Plus - 24 Months of Service
- 2025–2027 Factory-verified
the 2025 list reads "OnStar One Business Plus"; 2026–2027: A in all trims (requires UE1 or U5G)
- 2025–2027 Factory-verified
O on all trims; fleet and government order types; the 2025 list names it OnStar One Business Plus
- 2025 Factory-verified
the 2025 guides name it OnStar One Business Plus, 24 months of service; O on all trims
- 2025 Factory-verified
all trims: O; requires UE1; US fleet or government order types only
- 2026–2027 Factory-verified
2026–2027: A in all groups; requires UE1 and VV4
- 2027 Factory-verified
- 2025–2027 Factory-verified
the 2025 lists print "OnStar One Business Plus"
- 2025 Factory-verified
the list prints "OnStar One Business Plus" with "Months of Service"; the Silverado HD (T1XX) doc reads the code "OnStar One Fleet"
- 2025–2026 Factory-verified
the 2025 list reads "OnStar One Business Plus - 24 Months of Service";
- 2025–2027 Factory-verified
2027: O on all trims; the 2025 guide reads OnStar One Business Plus, 24 months of service
- 2025–2027 Factory-verified
2027: O on all trims; the 2025 guide reads OnStar One Business Plus, 24 months of service
- 2025–2027 Factory-verified
all trims: O; the 2025 guide reads OnStar One Business Plus, 24 months of service
- 2025–2027 Factory-verified
O on all trims; fleet or government order types (US); the 2025 guide words it as OnStar One Business Plus (bundle of OnStar Security and OnStar Insights)
- 2025–2026 Factory-verified
all trims: O; the 2025 guide prints it as OnStar One Business Plus, 24 months of service
This page aggregates every documented appearance of RFH in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.