{"nhtsa_id":10186421,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-02-01","date":"2021-01-11","document_id":"KC-2040","mfr_campaign":null,"replaces":null,"component":"ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC); ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"P21CA00 And Other Power Faults Leading To Communication Faults And SCR Inducement (Derate)","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10186421-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10186421-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10186421","components":[{"id":"driver-assistance","name":"Driver assistance","parent":null},{"id":"engine","name":"Engine","parent":null}],"codes":["P21CA"],"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":[]}