Over-the-air update TSB-2025-0004
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.
| Type | Over-the-air update |
|---|---|
| NHTSA id | 11024633 |
| Published by NHTSA | 2025-10-30 |
| Manufacturer's number | TSB-2025-0004 |
| Manufacturer's date | 2025-10-01 |
| Campaign id or software version | 3.4.0.A |
| NHTSA component | FUEL/PROPULSION SYSTEM |
| Manufacturer's system | Electrical: Software 3.4.0.A |
NHTSA's 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.
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
Components
Fuel system
| MOTIV E-450 BEV CHASSIS | 2019 to 2024 |
|---|---|
| MOTIV E-450 BEV CHASSIS SCHOOL BUS | 2019 to 2025 |
| MOTIV EPIC4 E-450 BEV | 2021 to 2024 |
| MOTIV F-53 BEV CHASSIS | 2019 to 2024 |
| MOTIV F-53 BEV CHASSIS SCHOOL BUS | 2021 to 2023 |
| MOTIV F-53 SCHOOL BUS | 2020 |
| MOTIV F-59 BEV CHASSIS | 2019 to 2025 |
| MOTIV F-59 BEV CHASSIS SCHOOL BUS | 2019 to 2020 |
| MOTIV F-59 BEV CHASSIS SCHOOL BUS | 2022 to 2025 |
| MOTIV F-59 SCHOOL BUS | 2021 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.