{"nhtsa_id":10179256,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-09-03","date":"2020-08-07","document_id":"TSB_CHA098_R3","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT; SERVICE BRAKES, HYDRAULIC:FLUID","mfr_system":null,"summary":"TECHNICAL SERVICE BULLETIN: IBAU SYSTEM REPAIR FOR NOISE AND AIR BLEEDING - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area. This bulletin provides the repair procedure for the Integrated Brake Actuation Unit (iBAU) system on some 2014-2019MY EV/Hybrid/Plug-In Hybrid vehicles listed (see table), which may exhibit a \"honking\" (Hissing) noise due to air remaining in the brake fluid system.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10179256-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10179256-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10179256","components":[{"id":"brakes","name":"Brakes","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null},{"id":"brake-fluid","name":"Brake fluid","parent":"brakes"}],"codes":[],"topics":[],"vehicles":[{"make":"KIA","model":"NIRO","year_from":2017,"year_to":2019,"match":"exact","vehicle_ids":["2017_kia_niro","2018_kia_niro","2019_kia_niro"]},{"make":"KIA","model":"NIRO EV","year_from":2019,"year_to":2019,"match":"base","vehicle_ids":["2019_kia_niro"]},{"make":"KIA","model":"NIRO HYBRID","year_from":2017,"year_to":2017,"match":"base","vehicle_ids":["2017_kia_niro"]},{"make":"KIA","model":"NIRO PHEV","year_from":2017,"year_to":2018,"match":"base","vehicle_ids":["2017_kia_niro","2018_kia_niro"]},{"make":"KIA","model":"NIRO PLUG-IN HYBRID","year_from":2019,"year_to":2019,"match":"base","vehicle_ids":["2019_kia_niro"]},{"make":"KIA","model":"OPTIMA","year_from":2014,"year_to":2019,"match":"exact","vehicle_ids":["2014_kia_optima","2015_kia_optima","2016_kia_optima","2017_kia_optima","2018_kia_optima","2019_kia_optima"]},{"make":"KIA","model":"OPTIMA HYBRID","year_from":2014,"year_to":2019,"match":"base","vehicle_ids":["2014_kia_optima","2015_kia_optima","2016_kia_optima","2017_kia_optima","2018_kia_optima","2019_kia_optima"]},{"make":"KIA","model":"OPTIMA PHEV","year_from":2016,"year_to":2019,"match":"base","vehicle_ids":["2016_kia_optima","2017_kia_optima","2018_kia_optima","2019_kia_optima"]},{"make":"KIA","model":"SOUL","year_from":2015,"year_to":2020,"match":"exact","vehicle_ids":["2015_kia_soul","2016_kia_soul","2017_kia_soul","2018_kia_soul","2019_kia_soul","2020_kia_soul"]},{"make":"KIA","model":"SOUL EV","year_from":2015,"year_to":2019,"match":"base","vehicle_ids":["2015_kia_soul","2016_kia_soul","2017_kia_soul","2018_kia_soul","2019_kia_soul"]},{"make":"KIA","model":"redundant NIRO","year_from":2018,"year_to":2018,"match":null,"vehicle_ids":[]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}