- 2026 Factory-verified
all trims: O
Also described as API Elite plan, 6 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
- 2026–2027 Factory-verified
2026–2027: A in all trims (requires UE1)
- 2026–2027 Factory-verified
2026: S: 2RS; O: 1LT, 2LT, XDB, KDZ, 1RS; 2027: O on all trims; fleet, fleet daily rental and government order types; fleet telematics data plan
- 2026–2027 Factory-verified
O: Cargo 1WT, Cutaway 1WT, Cutaway 2WT (2026), Passenger 1LS, Passenger 1LT
- 2026–2027 Factory-verified
2026–2027: A in all groups
- 2027 Factory-verified
- 2026–2027 Factory-verified
- 2026 Factory-verified
- 2026 Factory-verified
- 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
- 2026–2027 Factory-verified
O on all trims; fleet or government order types (US)
- 2026 Factory-verified
all trims: O
This page aggregates every documented appearance of P1Q in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.