{"nhtsa_id":10249557,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2024-02-02","date":"2024-01-01","document_id":"M-834-001 202401","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"TSB: Some Mack MMD trucks could experience an issue with the ignition lock cylinder sticking. Trucks that experience a sticking lock cylinder could have a lock cylinder that becomes tight or sticks in the start position. If the above condition is found replace the ignition lock cylinder.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-10249557-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-10249557-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10249557","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"MACK","model":"MD","year_from":2020,"year_to":2024,"match":"exact","vehicle_ids":["2020_mack_md","2021_mack_md","2022_mack_md","2023_mack_md","2024_mack_md"]}],"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":[]}