{"nhtsa_id":11014758,"type":"emissions","type_name":"Emissions","date_added":"2025-03-04","date":"2025-03-01","document_id":"E321","mfr_campaign":"E321","replaces":null,"component":"POWER TRAIN","mfr_system":null,"summary":"Certain chassis equipped with a PACCAR MX-11 EMY18 engine are eligible to receive software improvements to increase vehicle uptime and functionality of emissions fault detection. The software updates will allow Forward NOx sensor deviations to be detected prior to OBD Emission Limit (OBDEL) exceedance.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11014758-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11014758-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11014758","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"PACCAR","model":"MX-11","year_from":2018,"year_to":2018,"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":[]}