{"nhtsa_id":10253359,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2024-04-22","date":"2024-03-01","document_id":"SIL 06-TR-24","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN:AUTOMATIC TRANSMISSION:PARK/NEUTRAL START INTERLOCK SWITCH","mfr_system":null,"summary":"Notice regarding change restrictions to certain vehicles' neutral-at-stop calibration for vehicles with EPA/CARB certifications via Allison's NAS feature.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-10253359-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2024/MC-10253359-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10253359","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"automatic-transmission","name":"Automatic transmission","parent":"powertrain"}],"codes":[],"topics":[],"vehicles":[{"make":"ALLISON","model":"1000 SERIES TRANSMISSION","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"ALLISON","model":"2000 SERIES TRANSMISSION","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"ALLISON","model":"3000 SERIES TRANSMISSION","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"ALLISON","model":"4000 SERIES TRANSMISSION","year_from":null,"year_to":null,"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":[]}