{"vehicle":{"id":"2022_hyundai_sonata","year":2022,"make":"Hyundai","model":"Sonata"},"code":"C1501","generic":false,"description":null,"bulletins":{"as_of":"2026-10-19","count":3,"bulletins":[{"nhtsa_id":10238346,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-06-30","date":"2023-06-01","document_id":"23-01-036H-1","mfr_campaign":null,"component":"PARKING BRAKE","summary":"Certain Hyundai Elantra, Sonata, and Santa Fe vehicles may exhibit the Electronic Parking Brake (EPB) warning light on due to brake fluid entering the HECU (Hydraulic Electronic Control Unit) electrical connector. DTC C1501 (EPB Switch Failure) may be present, but EPB performance remains unaffected.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10238346-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10238346-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10238346"},{"nhtsa_id":10238340,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-06-30","date":"2023-06-01","document_id":"23-01-036H-1","mfr_campaign":null,"component":"PARKING BRAKE","summary":"Some Elantra (CN7A), Sonata (DN8A) and Santa Fe (TMA) vehicles may exhibit the Electronic Parking Brake (EPB) warning light on due to brake fluid entering the HECU electrical connector. DTC C1501 (EPB Switch Failure) may be present, but EPB performance remains unaffected. This bulletin describes the procedure to inspect, and if necessary, replace the Hydraulic Electronic Control Unit (HECU).","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10238340-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10238340-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10238340"},{"nhtsa_id":10237179,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-06-02","date":"2023-05-04","document_id":"23-01-036H","mfr_campaign":null,"component":"PARKING BRAKE","summary":"Some Elantra (CN7A), Sonata (DN8A) and Santa Fe (TMA) vehicles may exhibit the Electronic Parking Brake (EPB) warning light on due to brake fluid entering the HECU electrical connector. DTC C1501 (EPB Switch Failure) may be present, but EPB performance remains unaffected. This bulletin describes the procedure to inspect, and if necessary, replace the Hydraulic Electronic Control Unit (HECU).","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10237179-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10237179-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10237179"}],"url":"https://open.wenmarpro.com/makes/hyundai/sonata/2022/bulletins?code=C1501"},"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/sonata/2022/codes/C1501","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."]}