This bulletin contains the software update procedure for the Engine Control Unit (ECU) on certain 2021-2023MY Elantra (CN7) and 2022-2023MY Kona (OS) vehicles equipped with the 1.6 liter T-GDI Gamma 2 engine, that may exhibit a warning lamp with one or more of the DTCs listed
below:
⢠P250F - Engine Oil Level Too Low
⢠P011B, P050C - Engine Coolant Temperature/intake Air Temperature Correlation
⢠P00B7, P2B60 - Engine Coolant Flow Low/Performance
