{"vehicle":{"id":"2023_hyundai_tucson","year":2023,"make":"Hyundai","model":"Tucson"},"code":"P2181","generic":true,"description":null,"bulletins":{"as_of":"2026-10-19","count":2,"bulletins":[{"nhtsa_id":11028667,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-02-10","date":"2026-02-05","document_id":"26-EM-004H TSB","mfr_campaign":null,"component":"ENGINE","summary":"Some Tucson (NX4, NX4A) vehicles may have DTC P218100, P2181F0, and/or P2181F1 (Cooling System Performance) set in the Electronic Control Unit (ECU), resulting in an illuminated Check Engine warning lamp. This TSB provides instructions to replace the Integrated Thermal Management (ITM) module and update both the Engine Control Module (ECM) and Transmission Control Module (TCM), if applicable. Follow the flowchart in this bulletin to update the appropriate modules.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11028667-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11028667-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11028667"},{"nhtsa_id":11006112,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2024-08-07","date":"2024-07-23","document_id":"24-EM-001H","mfr_campaign":null,"component":"ENGINE","summary":"Certain 20-22MY Sonata (DN8a), 21-23MY Santa Fe (TMa), and 22-23MY Tucson (NX4a) vehicles may experience a warning lamp illumination for a diagnostic trouble code P2181 that is related to the Integrated Thermal Management Module (ITM). Follow the service procedure outlined in this bulletin to replace the ITM.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-11006112-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-11006112-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11006112"}],"url":"https://open.wenmarpro.com/makes/hyundai/tucson/2023/bulletins?code=P2181"},"related":{"components":[],"bulletins":[],"recalls":{"may_apply":true,"recalls":[],"lookup":{"nhtsa":"https://www.nhtsa.gov/recalls","tc":"https://wwwapps.tc.gc.ca/Saf-Sec-Sur/7/VRDB-BDRV/search-recherche/menu.aspx?lang=eng","maker":null}}},"url":"https://open.wenmarpro.com/makes/hyundai/tucson/2023/codes/P2181","note":"The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.","attribution":["Contains information licensed under the Open Government Licence – Canada."]}