{"nhtsa_id":10233539,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-04-04","date":"2023-03-13","document_id":"23-EE-002H","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM); ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM:PROPULSION SYSTEM:HYBRID MANAGEMENT:POWER CONTROL UNIT/MODULE (HPCU):SOFTWARE","mfr_system":null,"summary":"This bulletin provides information related to the Engine Control Module (ECM) / Hybrid Control Unit (HCU) software update for Tucson Hybrid (NX4 HEV) / Plug-in Hybrid (NX4 PHEV) vehicles to improve the following DTC and symptoms:","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10233539-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10233539-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10233539","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null},{"id":"hybrid-ev","name":"Hybrid and electric drive","parent":null},{"id":"engine-control-module","name":"Engine control module","parent":"engine"}],"codes":[],"topics":[],"vehicles":[{"make":"HYUNDAI","model":"TUCSON","year_from":2023,"year_to":2023,"match":"exact","vehicle_ids":["2023_hyundai_tucson"]},{"make":"HYUNDAI","model":"TUCSON HYBRID","year_from":2022,"year_to":2022,"match":"base","vehicle_ids":["2022_hyundai_tucson"]}],"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":[]}