{"nhtsa_id":11024633,"type":"over_the_air","type_name":"Over-the-air update","date_added":"2025-10-30","date":"2025-10-01","document_id":"TSB-2025-0004","mfr_campaign":"3.4.0.A","replaces":null,"component":"FUEL/PROPULSION SYSTEM","mfr_system":"Electrical: Software 3.4.0.A","summary":"Software release 3.4.0.A is an over-the-air (OTA) quality action to improve driver experience, vehicle performance, and vehicle diagnostics. Summary of Changes • Digital display firmware upgrade. • Improve digital display menu navigation. • Driver feedback for pending gear selection. • Improved cooling system diagnostics and performance. • Improved HV battery diagnostics. • Improved fault code reporting. • Improved efuse trip handing on MY2024 EPIC S/SL and MY2025 S/SL vehicles.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11024633-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11024633-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11024633","components":[{"id":"fuel-system","name":"Fuel system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"MOTIV","model":"E-450 BEV CHASSIS","year_from":2019,"year_to":2024,"match":null,"vehicle_ids":[]},{"make":"MOTIV","model":"E-450 BEV CHASSIS SCHOOL BUS","year_from":2019,"year_to":2025,"match":null,"vehicle_ids":[]},{"make":"MOTIV","model":"EPIC4 E-450 BEV","year_from":2021,"year_to":2024,"match":null,"vehicle_ids":[]},{"make":"MOTIV","model":"F-53 BEV CHASSIS","year_from":2019,"year_to":2024,"match":null,"vehicle_ids":[]},{"make":"MOTIV","model":"F-53 BEV CHASSIS SCHOOL BUS","year_from":2021,"year_to":2023,"match":null,"vehicle_ids":[]},{"make":"MOTIV","model":"F-53 SCHOOL BUS","year_from":2020,"year_to":2020,"match":null,"vehicle_ids":[]},{"make":"MOTIV","model":"F-59 BEV CHASSIS","year_from":2019,"year_to":2025,"match":null,"vehicle_ids":[]},{"make":"MOTIV","model":"F-59 BEV CHASSIS SCHOOL BUS","year_from":2019,"year_to":2020,"match":null,"vehicle_ids":[]},{"make":"MOTIV","model":"F-59 BEV CHASSIS SCHOOL BUS","year_from":2022,"year_to":2025,"match":null,"vehicle_ids":[]},{"make":"MOTIV","model":"F-59 SCHOOL BUS","year_from":2021,"year_to":2021,"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":[]}