{"vehicle":{"id":"2012_toyota_prius-c","year":2012,"make":"Toyota","model":"Prius C"},"code":"C1391","generic":false,"description":null,"bulletins":{"as_of":"2026-10-19","count":1,"bulletins":[{"nhtsa_id":10198129,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-06-21","date":"2021-05-11","document_id":"T-SB-0028-21","mfr_campaign":null,"component":"SERVICE BRAKES, HYDRAULIC:FLUID; EQUIPMENT; ELECTRICAL SYSTEM","summary":"TSB: Some 2012 ? 2014 model year Prius C hybrid vehicles may exhibit a condition in which the brake, ABS, and/or TRAC warning lights are on and/or a Check VSC message displays. Diagnostic Trouble Codes (DTCs) C1391, C1252, C1256, and/or C1253 may also be stored. This condition may be caused by a small internal brake fluid leak inside the brake booster assembly with master cylinder. Follow the Repair Procedure in this bulletin to address this condition.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10198129-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10198129-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10198129"}],"url":"https://open.wenmarpro.com/makes/toyota/prius-c/2012/bulletins?code=C1391"},"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/toyota/prius-c/2012/codes/C1391","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."]}