{"nhtsa_id":10233643,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-04-06","date":"2023-03-06","document_id":"TSB_ELE285","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"TECHNICAL SERVICE BULLETIN: MQ4 P/HEV GAMMA 1.6L T-GDI ECM & HCULDC LOGIC IMPROVEMENT FOR OIL DILUTION: This bulletin provides the procedure to update the software logic of the 'Engine' and Hybrid Control Unit Low DC-DC Converter 'HCULDC' systems on certain 2021-2023MY Sorento HEV, PHEV (MQ4 P/HEV) w/ Gamma 1.6L T-GDI vehicles produced from July 1, 2021 through November 3, 2022. The affected vehicles may exhibit a MIL 'ON' with DTCs stored (P144100, P1A7795, P00B700, P211800, P040100, P023600, P029900, P2B6000) due to the engine oil becoming diluted with fuel and/or moisture caused by repeated short drive trips, in low outdoor temperature (32 degree F-) environments.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10233643-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10233643-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10233643","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null},{"id":"fuel-system","name":"Fuel system","parent":null}],"codes":["P00B7","P0236","P0299","P0401","P1441","P1A77","P2118","P2B60"],"topics":[],"vehicles":[{"make":"KIA","model":"SORENTO HYBRID","year_from":2021,"year_to":2023,"match":"base","vehicle_ids":["2021_kia_sorento","2022_kia_sorento","2023_kia_sorento"]},{"make":"KIA","model":"SORENTO PHEV","year_from":2022,"year_to":2023,"match":"base","vehicle_ids":["2022_kia_sorento","2023_kia_sorento"]}],"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":[]}