{"nhtsa_id":10179886,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-09-16","date":"2020-09-16","document_id":"CONMET HUB COMMU","mfr_campaign":null,"replaces":null,"component":"SERVICE BRAKES, HYDRAULIC","mfr_system":null,"summary":"ConMet Hub Communication on rotor mounting studs installed on steer and drive hubs on vehicles with flat rotors may fracture due to hydrogen embrittlement. Inspection of vehicles may delay delivery of vehicles.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10179886-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10179886-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10179886","components":[{"id":"brakes","name":"Brakes","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FREIGHTLINER","model":"BUSINESS CLASS M2","year_from":2021,"year_to":2021,"match":null,"vehicle_ids":[]},{"make":"FREIGHTLINER","model":"CASCADIA","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_freightliner_cascadia"]},{"make":"FREIGHTLINER","model":"CORONADO","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_freightliner_coronado"]}],"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":[]}