The defect
REV Ambulance Group Orlando, Inc. (REV) is recalling certain 2019-2024 Type I, Type III, and Type IX vehicles equipped with certain Weldon Vmux HC1.7 Input/Output multiplex nodes. In the event of a short circuit or wiring failure, the firmware in the node may fail to shut off the output pin, resulting in overloaded electrical circuits.
The risk
Overloaded electrical circuits can overheat, increasing the risk of fire.
The remedy
Dealers will update the firmware, free of charge. Owner notification letters were May 17, 2024. Owners may contact REV customer service at 1-855-661-9232.
NHTSA's own wording · initiated by ODI
Vehicles covered
| Model | Model years |
|---|---|
| REV Ambulance Type I | 2022, 2023 |
| Road Rescue Type III | 2019, 2020 |
| Wheeled Coach Type I | 2021, 2024 |
| Wheeled Coach Type III | 2020, 2021, 2022, 2023, 2024 |
| Wheeled Coach Type IX | 2019, 2020, 2021, 2022, 2023, 2024 |
Components: ELECTRICAL SYSTEM
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| REV Ambulance Type I | 2022 | 0 | 3 |
| REV Ambulance Type I | 2023 | 0 | 3 |
| Road Rescue Type III | 2019 | 0 | 3 |
| Road Rescue Type III | 2020 | 0 | 4 |
| Wheeled Coach Type I | 2021 | 0 | 4 |
| Wheeled Coach Type I | 2024 | 0 | 3 |
| Wheeled Coach Type III | 2020 | 0 | 2 |
| Wheeled Coach Type III | 2021 | 0 | 2 |
| Wheeled Coach Type III | 2022 | 0 | 2 |
| Wheeled Coach Type III | 2023 | 0 | 2 |
| Wheeled Coach Type III | 2024 | 0 | 2 |
| Wheeled Coach Type IX | 2019 | 0 | 3 |
| Wheeled Coach Type IX | 2020 | 0 | 4 |
| Wheeled Coach Type IX | 2021 | 0 | 4 |
| Wheeled Coach Type IX | 2022 | 0 | 3 |
| Wheeled Coach Type IX | 2023 | 0 | 3 |
| Wheeled Coach Type IX | 2024 | 0 | 3 |
Other electrical system recalls in 2024
178 of the 950 recall campaigns reported to NHTSA in 2024 concerned the electrical system; REV Ambulance Group Orlando, Inc. filed 5 campaigns in all.
| 24V969000 23 Dec 2024 | Nissan North America, Inc. |
| 24V966000 23 Dec 2024 | Storyteller Overland |
| 24V954000 20 Dec 2024 | Ford Motor Company |
| 24V959000 20 Dec 2024 | Gillig, LLC |
| 24V942000 19 Dec 2024 | Chrysler (FCA US, LLC) |
| 24V940000 18 Dec 2024 | Polestar Automotive USA, Inc. |
| 24V932000 16 Dec 2024 | Mitsubishi Fuso Truck of America, Inc. |
| 24V930000 13 Dec 2024 | Daimler Vans USA, LLC |
NHTSA recalls (public domain) · all recalls of 2024