{"vehicle":{"id":"2021_hyundai_elantra","year":2021,"make":"Hyundai","model":"Elantra"},"code":"P2181","generic":true,"description":null,"bulletins":{"as_of":"2026-10-19","count":1,"bulletins":[{"nhtsa_id":11027036,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-01-06","date":"2025-12-18","document_id":"25-EM-007H TSB","mfr_campaign":null,"component":"ENGINE","summary":"Some Elantra (CN7, CN7A), Kona (OS, SX2), and Sonata Hybrid (DN8 HEV) vehicles equipped with 2.0L engines may illuminate a warning lamp for DTC P218100 (Cooling System Performance) related to the Integrated Thermal-Management Module (ITM). Follow the service procedure in this bulletin to install a spring onto the thermostat within the ITM, in order to prevent premature opening, and perform an ECU software update on affected vehicles.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11027036-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11027036-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11027036"}],"url":"https://open.wenmarpro.com/makes/hyundai/elantra/2021/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/elantra/2021/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."]}