{"nhtsa_id":10179371,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-09-03","date":"2020-08-26","document_id":"37-001","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"Fix-As-Fail – The Master Switch Module (MSM) may lose dash switch memory and functionality when the battery disconnect switch is cycled. An improved MSM is available to resolve the issue.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10179371-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10179371-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10179371","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"KENWORTH","model":"T680","year_from":2017,"year_to":2020,"match":"exact","vehicle_ids":["2017_kenworth_t680","2018_kenworth_t680","2019_kenworth_t680","2020_kenworth_t680"]},{"make":"KENWORTH","model":"T880","year_from":2017,"year_to":2020,"match":"exact","vehicle_ids":["2017_kenworth_t880","2018_kenworth_t880","2019_kenworth_t880","2020_kenworth_t880"]},{"make":"KENWORTH","model":"W990","year_from":2019,"year_to":2020,"match":"exact","vehicle_ids":["2019_kenworth_w990","2020_kenworth_w990"]},{"make":"PETERBILT","model":"567","year_from":2017,"year_to":2018,"match":"exact","vehicle_ids":["2017_peterbilt_567","2018_peterbilt_567"]},{"make":"PETERBILT","model":"579","year_from":2017,"year_to":2018,"match":"exact","vehicle_ids":["2017_peterbilt_579","2018_peterbilt_579"]}],"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":[]}