- 2022–2023, 2025–2027 Factory-verified
2027: police guides: S on both columns; printed by the Tahoe police package and special service guides, not by the retail and fleet guides; the police guides read key, unique
AX2 Factory-verified
Also documented for CadillacGMCPontiac
Documented applications
This page aggregates every documented appearance of AX2 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.