{"nhtsa_id":10179887,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-09-16","date":"2020-09-08","document_id":"CONMET DISC BRAK","mfr_campaign":null,"replaces":null,"component":"SERVICE BRAKES, HYDRAULIC","mfr_system":null,"summary":"ConMet Disc Brake Communication for vehicles with flat rotor disc brakes with aluminum hubs may have rotor mounting studs fracture due to hydrogen embrittlement. A hold has been placed on vehicles at plants and facilities to inspect before releasing for delivery.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10179887-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10179887-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10179887","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":[]}