{"nhtsa_id":10194475,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-05-26","date":"2021-05-10","document_id":"WI21-013","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"Warranty Information Letter for Heavy Duty Aftertreatment Failure Guide Worksheet - Replaces ATD Checklist.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10194475-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10194475-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10194475","components":[{"id":"engine","name":"Engine","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null},{"id":"labels-manuals","name":"Labels and manuals","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FREIGHTLINER","model":"FREIGHTLINER","year_from":null,"year_to":null,"match":"exact","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":[]}