{"nhtsa_id":10121632,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-10-31","date":"2017-10-20","document_id":"403100556","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN; ELECTRICAL SYSTEM","mfr_system":null,"summary":"According to the notification received by Daimler Trucks; certain vehicles may not have the correct programming in the transmission control module (TCM) to downshift to second gear during an engine brake event. This may result in reduced engine braking effectiveness. The TCM will be inspected and if necessary reprogrammed to enable the downshifting feature. The affected models are specific Freightliner Custom Chassis XCM, XCR, and XCS chassis manufactured March 21, 2016, through July 1, 2016.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10121632-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10121632-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10121632","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"BERKSHIRE","model":"BE38A-340","year_from":2017,"year_to":2017,"match":null,"vehicle_ids":[]},{"make":"CROSS COUNTRY","model":"CROSS COUNTRY","year_from":2017,"year_to":2017,"match":"exact","vehicle_ids":["2017_cross-country_cross-country"]},{"make":"LEGACY SR","model":"LSA340BH-340","year_from":2017,"year_to":2017,"match":null,"vehicle_ids":[]},{"make":"LEGACY SR","model":"LSA38C-340","year_from":2017,"year_to":2017,"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":[]}