{"vehicle":{"id":"2020_hyundai_elantra","year":2020,"make":"Hyundai","model":"Elantra"},"code":"P1327","generic":false,"description":null,"bulletins":{"as_of":"2026-10-19","count":4,"bulletins":[{"nhtsa_id":11036204,"type":"service_campaign","type_name":"Service campaign","date_added":"2026-08-15","date":"2026-08-06","document_id":"26-01-039H DN","mfr_campaign":"9D3","component":"ELECTRICAL SYSTEM; ENGINE","summary":"Certain Elantra (ADA) vehicles may have been incorrectly updated with Cylinder Noise Detection System (CNDS) software that can set DTC P132700; this software was intended only for Korean-built Elantra (AD) vehicles. In addition, the California Air Resources Board has determined that these vehicles may be releasing air pollutants which exceed Federal and California standards.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11036204-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11036204-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11036204"},{"nhtsa_id":11036202,"type":"service_campaign","type_name":"Service campaign","date_added":"2026-08-15","date":"2026-08-06","document_id":"26-01-039H TSB","mfr_campaign":"9D3","component":"ELECTRICAL SYSTEM; ENGINE","summary":"Certain Elantra (ADA) vehicles may have been incorrectly updated with Cylinder Noise Detection System (CNDS) software that can set DTC P132700; this software was intended only for Korean-built Elantra (AD) vehicles. This bulletin provides instructions to perform a software update for the Engine Control Module (ECM) to revert to the original ROM ID, apply the emissions label under the hood, and provide the vehicle owner with Proof of Correction.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11036202-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11036202-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11036202"},{"nhtsa_id":10213724,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-06-10","date":"2022-05-05","document_id":"22-EM-008H","mfr_campaign":null,"component":"ENGINE AND ENGINE COOLING","summary":"Hyundai is conducting a service campaign 974 to enhance the knock sensor logic with the Cylinder Noise Diagnostic System (CNDS) software update. CNDS is to detect abnormal cylinder wall scuffing or noise of the engine block before potentially severe engine damage occurs. If abnormal noise is detected, the Malfunction Indicator Lamp (MIL) will blink continuously. In addition, DTC P1327 will be recorded in the ECM.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10213724-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10213724-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10213724"},{"nhtsa_id":10213718,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-06-10","date":"2022-05-05","document_id":"22-01-043H","mfr_campaign":null,"component":"ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT; ENGINE AND ENGINE COOLING","summary":"Hyundai is conducting a service campaign to enhance the knock sensor logic with the Cylinder Noise Diagnostic System (CNDS) software update. CNDS is to detect abnormal cylinder wall scuffing or noise of the engine block before potentially severe engine damage occurs. If abnormal noise is detected, the Malfunction Indicator Lamp (MIL) will blink continuously. In addition, DTC P1327 will be recorded in the ECM.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10213718-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10213718-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10213718"}],"url":"https://open.wenmarpro.com/makes/hyundai/elantra/2020/bulletins?code=P1327"},"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/2020/codes/P1327","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."]}