{"nhtsa_id":10210549,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-05-03","date":"2022-04-13","document_id":"ICI22-018","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"Important Campaign Information Letter for DDC D21M7 Termination Date Extended. This letter is to inform you that a revised bulletin for Detroit Diesel Field Service Campaign D21M7, GHG21 Detroit DD16 CPC Software Reprogramming has been EXTENDED for an additional five months. Please use the extended termination date for all work under D21M7 from this point forward. REVISION: D21M7 termination date extended to April 12, 2023.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10210549-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10210549-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10210549","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"WESTERN STAR","model":"49X","year_from":2021,"year_to":2022,"match":null,"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":[]}