{"nhtsa_id":11034847,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-07-08","date":"2026-07-01","document_id":"26-FL-003H TSB","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM; ENGINE","mfr_system":null,"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.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11034847-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11034847-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11034847","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null}],"codes":["P2237"],"topics":[],"vehicles":[{"make":"HYUNDAI","model":"KONA","year_from":2024,"year_to":2025,"match":"exact","vehicle_ids":["2024_hyundai_kona","2025_hyundai_kona"]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}