- 2026 Factory-verified
all trims: O
Also described as GM Commercial Link, 2 years of serviceOnStar Connect Plus plan, 12 months (fleet)
Also documented for BuickCadillacGMC
Documented applications
- 2026–2027 Factory-verified
- 2027 Factory-verified
LT, RS: O
- 2026 Factory-verified
O: 400, 600;
- 2026–2027 Factory-verified
2026–2027: O on all trims
- 2026–2027 Factory-verified
- 2019 Factory-verified
fleet orders; 2019: sedan O: 1SB, 1SD, 1SH, 1SF; hatch O on all
- 2026–2027 Factory-verified
2026–2027: A in all trims (requires UE1 or U5G)
- 2019 Factory-verified
fleet
- 2026–2027 Factory-verified
O on all trims; fleet and government order types
- 2026–2027 Factory-verified
2026–2027: A in all groups; requires UE1 and VV4
- 2027 Factory-verified
- 2026–2027 Factory-verified
only in: 2500 HD, 3500 HD, 3500 HD chassis cab
- 2026 Factory-verified
- 2019 Factory-verified
all trims: O; fleet
- 2019 Factory-verified
all trims: O; fleet
- 2026–2027 Factory-verified
2027: O on all trims
- 2026–2027 Factory-verified
2027: O on all trims
- 2026–2027 Factory-verified
all trims: O; 2026 and 2027 only
- 2019 Factory-verified
2019: every trim but L: O; fleet orders; GM's later lists also use P0H for an OnStar Connect Plus plan
- 2026–2027 Factory-verified
O on all trims; fleet or government order types (US)
- 2019 Factory-verified
all trims: O; requires UE1 and a fleet or government order type
- 2026 Factory-verified
all trims: O
This page aggregates every documented appearance of P0H in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.