2019–2021 Proterra Catalyst, 2020–2022 Proterra ZX5 Recall: Vehicle controller software may allow the electrical circuit for the…
NHTSA campaign 24V655000 · Electrical System · filed Sep 6, 2024 · verified Jul 30, 2026
The defect
Phoenix Motorcars (Phoenix) is recalling certain 2019-2021 800V Catalyst and 2020-2022 ZX5 transit buses. The vehicle controller software may allow the electrical circuit for the radiator fan to overheat.
The risk
Electrical circuits that overheat increase the risk of a fire.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — what to do
Dealers will update the vehicle software, free of charge. Owner notification letters were mailed October 15, 2024. Owners may contact Phoenix customer service at 1-909-987-0815.
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.
Affected vehicles
Related recalls
More Proterra Catalyst recalls
- 2019–2022 Proterra Catalyst and 1 other model — A transistor inside the inverter may overheat and fail…
- 2020–2022 Proterra Catalyst and 1 other model — Windshield wiper motors may operate intermittently or may…
- 2017–2019 Proterra Catalyst — One or more battery packs may allow liquid to leak into and…
- 2020–2021 Proterra Catalyst and 1 other model — Back pressure in the shared air exhaust for the pneumatic…
- 2015–2022 Proterra Catalyst and 1 other model — Plexus adhesive between the torque limiter plate and the…
Other campaigns involving Proterra vehicles
Source: NHTSA recall database, campaign 24V655000 (manufacturer number SC-24-009). Data last verified Jul 30, 2026.