{"nhtsa_id":10243318,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-10-02","date":"2023-09-07","document_id":"23-01-072H","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN; ELECTRICAL SYSTEM:SOFTWARE","mfr_system":null,"summary":"This bulletin provides the procedure to update the Hybrid Control Unit (HCU) / Low DC/DC Converter (LDC) software logic to eliminate internal P-DTCs (that are not viewable) in certain 2019-2021MY IONIQ Hybrid (AE HEV) and 2021MY IONIQ Plug-in Hybrid (AE PHEV) vehicles.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10243318-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10243318-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10243318","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"software","name":"Software","parent":"electrical"}],"codes":[],"topics":[],"vehicles":[{"make":"HYUNDAI","model":"IONIQ HYBRID","year_from":2019,"year_to":2021,"match":"base","vehicle_ids":["2019_hyundai_ioniq","2020_hyundai_ioniq","2021_hyundai_ioniq"]}],"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":[]}