{"nhtsa_id":10238382,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-07-05","date":"2023-06-02","document_id":"43-072","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"Certain chassis with Engine Model Year 2016-2021 PACCAR MX-11/MX-13, or EPA13 and EPA21 Cummins ISX12/ISX15/X15 engines that had a previously failed DEF sensor and with DEF sensor software disabled due to industry DEF sensor shortages will now be able to receive a replacement DEF sensor, DEF tank heater coolant control valve, and re-enabled DEF diagnostic software. Please note that chassis equipped with PACCAR PX engines will be eligible for this repair at a future date when software is available.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10238382-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10238382-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10238382","components":[{"id":"engine","name":"Engine","parent":null},{"id":"exhaust-emissions","name":"Exhaust and emissions","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"KENWORTH","model":"C500","year_from":2016,"year_to":2019,"match":null,"vehicle_ids":[]},{"make":"KENWORTH","model":"T280","year_from":2021,"year_to":2021,"match":null,"vehicle_ids":[]},{"make":"KENWORTH","model":"T380","year_from":2018,"year_to":2021,"match":null,"vehicle_ids":[]},{"make":"KENWORTH","model":"T480","year_from":2021,"year_to":2021,"match":null,"vehicle_ids":[]},{"make":"KENWORTH","model":"T600","year_from":2017,"year_to":2020,"match":null,"vehicle_ids":[]},{"make":"KENWORTH","model":"T660","year_from":2016,"year_to":2019,"match":null,"vehicle_ids":[]},{"make":"KENWORTH","model":"T680","year_from":2016,"year_to":2021,"match":"exact","vehicle_ids":["2016_kenworth_t680","2017_kenworth_t680","2018_kenworth_t680","2019_kenworth_t680","2020_kenworth_t680","2021_kenworth_t680"]},{"make":"KENWORTH","model":"T800","year_from":2016,"year_to":2020,"match":null,"vehicle_ids":[]},{"make":"KENWORTH","model":"T800B","year_from":2021,"year_to":2021,"match":null,"vehicle_ids":[]},{"make":"KENWORTH","model":"T880","year_from":2016,"year_to":2021,"match":"exact","vehicle_ids":["2016_kenworth_t880","2017_kenworth_t880","2018_kenworth_t880","2019_kenworth_t880","2020_kenworth_t880","2021_kenworth_t880"]},{"make":"KENWORTH","model":"W900","year_from":2016,"year_to":2021,"match":null,"vehicle_ids":[]},{"make":"KENWORTH","model":"W990","year_from":2018,"year_to":2021,"match":"exact","vehicle_ids":["2018_kenworth_w990","2019_kenworth_w990","2020_kenworth_w990","2021_kenworth_w990"]}],"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":[]}