{"nhtsa_id":10189621,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-04-01","date":"2021-03-31","document_id":"SB54-328","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN","mfr_system":null,"summary":"Updated Freightliner Service Bulletin for Rerouting Wiring Harness to Reduce Chafing. This bulletin replaces the version dated 06/29/2020. Two new illustrations have been added to demonstrate proper application of butterfly tie straps on the transmission. ---Allison transmission wiring harness chafing causes disruption to gear engagement and fault code generation. To reduce chafing, the wiring is routed using stand off brackets and tie straps to minimize contact with the transmission parts. This bulletin applies to vehicles equipped with on-board diagnostics (OBDs) manufactured after 2016.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10189621-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10189621-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10189621","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FREIGHTLINER","model":"108SD","year_from":2017,"year_to":2022,"match":"exact","vehicle_ids":["2017_freightliner_108sd","2018_freightliner_108sd","2019_freightliner_108sd","2020_freightliner_108sd","2021_freightliner_108sd","2022_freightliner_108sd"]},{"make":"FREIGHTLINER","model":"114SD","year_from":2017,"year_to":2022,"match":"exact","vehicle_ids":["2017_freightliner_114sd","2018_freightliner_114sd","2019_freightliner_114sd","2020_freightliner_114sd","2021_freightliner_114sd","2022_freightliner_114sd"]},{"make":"FREIGHTLINER","model":"BUSINESS CLASS M2","year_from":2017,"year_to":2022,"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":[]}