{"nhtsa_id":10186432,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-02-01","date":"2021-01-21","document_id":"KC-136","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"Aftertreatment Control Module (ACM) Offline/Not Visible/Missing From Control Unit Information in Premium Tech Tool (PTT) - US10+OBD13 And Newer Emissions","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10186432-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10186432-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10186432","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"MACK","model":"MACK","year_from":null,"year_to":null,"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":[]}