The defect
Proterra Operating Company, Inc. (Proterra) is recalling certain 2019-2022 40' and 35' Catalyst 800V transit buses equipped with ProDrive 1.0, and 40' and 35' ZX5 800V transit buses equipped with ProDrive 1.0. A transistor inside the inverter may overheat and fail, which can result in a loss of power steering and drive power.
The risk
A loss of power steering and/or drive power increases the risk of a crash.
The remedy
Dealers will replace the inverter, free of charge. Owner notification letters were mailed December 16, 2023. Owners may contact Proterra customer service at 1-864-438-0000.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Proterra Catalyst | 2019, 2020, 2021, 2022 |
| Proterra ZX5 | 2019, 2020, 2021, 2022 |
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 |
|---|---|---|---|
| Proterra Catalyst | 2019 | 0 | 9 |
| Proterra Catalyst | 2020 | 0 | 8 |
| Proterra Catalyst | 2021 | 1 | 5 |
| Proterra Catalyst | 2022 | 0 | 3 |
| Proterra ZX5 | 2019 | 0 | 3 |
| Proterra ZX5 | 2020 | 0 | 6 |
| Proterra ZX5 | 2021 | 0 | 6 |
| Proterra ZX5 | 2022 | 0 | 6 |
Other electrical system recalls in 2023
178 of the 894 recall campaigns reported to NHTSA in 2023 concerned the electrical system; Proterra Operating Company, Inc. filed 5 campaigns in all.
| 23V904000 29 Dec 2023 | Cake 0 Emission USA Inc |
| 23V901000 26 Dec 2023 | Hyundai Motor America |
| 23V888000 22 Dec 2023 | Prevost Car (US) Inc. |
| 23V894000 22 Dec 2023 | Rosenbauer America |
| 23V879000 21 Dec 2023 | Daimler Trucks North America, LLC |
| 23V873000 21 Dec 2023 | REV Ambulance Group Orlando, Inc. |
| 23V867000 20 Dec 2023 | Volkswagen Group of America, Inc. |
| 23V864000 20 Dec 2023 | Toyota Motor Engineering & Manufacturing |
NHTSA recalls (public domain) · all recalls of 2023