{"nhtsa_id":11023106,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-09-12","date":"2025-09-09","document_id":"TSB_TRA112","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN","mfr_system":"TRA","summary":"TECHNICAL SERVICE BULLETIN: TRANSAXLE ASSEMBLY REPLACEMENT & HCU LOGIC IMPROVEMENT - This bulletin provides information to replace the transaxle assembly and upgrade the Hybrid Control Unit Low-Voltage DC Converter (HCULDC) software on some 2022-2024MY Sorento Plug-In Hybrid (MQ4 PHEV) vehicles equipped with a 1.6L T-GDI engine and All-Wheel Drive (AWD), produced from June 29, 2021 through January 10, 2024. Some vehicles may experience an illuminated Malfunction Indicator Lamp (MIL) with DTC P0C4E00 stored, accompanied by a rough transition when the vehicle switches between EV and HEV motive power.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11023106-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11023106-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11023106","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":["P0C4E"],"topics":[],"vehicles":[{"make":"KIA","model":"SORENTO PHEV","year_from":2022,"year_to":2024,"match":"base","vehicle_ids":["2022_kia_sorento","2023_kia_sorento","2024_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":[]}