{"nhtsa_id":10179885,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-09-16","date":"2020-09-08","document_id":"CONMET FLAT ROTO","mfr_campaign":null,"replaces":null,"component":"SERVICE BRAKES, HYDRAULIC","mfr_system":null,"summary":"ConMet Work Instructions for Inspection of ConMet Disc Brake Rotor to Hub Fastener. Please see the attached instructions on inspecting the ConMet disc brake rotor to hub fastener. Rotor mounting studs installed on steer and drive hubs on vehicles with flat rotors may fracture due to hydrogen embrittlement.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10179885-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10179885-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10179885","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":[]}