{"nhtsa_id":10244494,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-11-10","date":"2023-10-18","document_id":"E304","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"E304: PACCAR MX-11 and MX-13 EMY2016 NOx and N2O Exceedance Emissions Recall Certain vehicles with PACCAR MX-11 and MX-13 EMY2016 engines with less than 300,000 miles (482,803 km) have been shown, in testing, to exceed regulatory limits for NOx and N2O emissions. This bulletin now applies to both Canadian and U.S.-registered vehicles. Software is now available to remedy this emissions non-compliance. NOTE California-registered vehicles that received a letter must have the software updated AND California documentation completed regardless of vehicle mileage.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10244494-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10244494-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10244494","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"KENWORTH","model":"T680","year_from":2015,"year_to":2017,"match":"exact","vehicle_ids":["2015_kenworth_t680","2016_kenworth_t680","2017_kenworth_t680"]},{"make":"KENWORTH","model":"T880","year_from":2015,"year_to":2017,"match":"exact","vehicle_ids":["2015_kenworth_t880","2016_kenworth_t880","2017_kenworth_t880"]}],"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":[]}