Some Kona (SX2) vehicles equipped with the 1.6L T‑GDI engine may exhibit false “engine left idling”...

Bulletin number

26-FL-003H TSB

Component

Electrical system

Summary

Some Kona (SX2) vehicles equipped with the 1.6L T‑GDI engine may exhibit false “engine left idling” notifications in the MyHyundai app, even when the engine is not running, due to a logic error associated with the front oxygen (O₂) sensor. This condition may also illuminate the Malfunction Indicator Lamp (MIL) and set DTC P223700 (O₂ Sensor Pumping Current Circuit/Open [Bank 1 Sensor 1]). This bulletin provides instructions to perform an ECU software update to correct the O₂ sensor logic and resolve the condition.

Owners of these vehicles have filed 40 complaints in the electrical category.